Steward Machine Company v. Davis/Opinion of the Court
The validity of the tax imposed by the Social Security Act (42 U.S.C.A. §§ 301-1305) on employers of eight or more is here to be determined.

Petitioner, an Alabama corporation, paid a tax in accordance with the statute, filed a claim for refund with the Commissioner of Internal Revenue, and sued to recover the payment ($46.14), asserting a conflict between the statute and the Constitution of the United States. Upon demurrer the District Court gave judgment for the defendant dismissing the complaint, and the Circuit Court of Appeals for the Fifth Circuit affirmed. 89 F.(2d) 207. The decision is in accord with judgments of the Supreme Judicial Court of Massachusetts (Howes Brothers Co. v. Massachusetts Unemployment Compensation Commission, December 30, 1936, 5 N.E.(2d) 720), the Supreme Court of California (Gillum v. Johnson, November 25, 1936, 62 P.(2d) 1037), and the Supreme Court of Alabama (Beeland Wholesale Co. v. Kaufman, March 18, 1937, 174 So. 516). It is in conflict with a judgment of the Circuit Court of Appeals for the First Circuit, from which one judge dissented. Davis v. Boston & Maine R.R. Co., April 14, 1937, 89 F. (2d) 368. An important question of constitutional law being involved, we granted certiorari. 300 U.S. 652, 57 S.Ct. 673, 81 L.Ed. --.

The Social Security Act (Act of August 14, 1935, c. 531, 49 Stat. 620, 42 U.S.C., c. 7 (Supp.II), 42 U.S.C.A. §§ 301-1305) is divided into eleven separate titles, of which only titles IX and III are so related to this case as to stand in need of summary.

The caption of title IX is 'Tax on Employers of Eight or More.' Every employer (with stated exceptions) is to pay for each calendar year 'an excise tax, with respect to having individuals in his employ,' the tax to be measured by prescribed percentages of the total wages payable by the employer during the calendar year with respect to such employment. Section 901, 42 U.S.C.A. § 1101. One is not, however, an 'employer' within the meaning of the act unless he employs eight persons or more. Section 907(a), 42 U.S.C.A. § 1107(a). There are also other limitations of minor importance. The term 'employment' too has its special definition, excluding agricultural labor, domestic service in a private home, and some other smaller classes. Section 907(c), 42 U.S.C.A. § 1107(c). The tax begins with the year 1936, and is payable for the first time on January 31, 1937. During the calendar year 1936 the rate is to be 1 per cent., during 1937 2 per cent., and 3 per cent. thereafter. The proceeds, when collected, go into the Treasury of the United States like internal revenue collections generally. Section 905(a), 42 U.S.C.A. § 1105(a). They are not earmarked in any way. In certain circumstances, however, credits are allowable. Section 902, 42 U.S.C.A. § 1102. If the taxpayer has made contributions to an unemployment fund under a state law, he may credit such contributions against the federal tax, provided, however, that the total credit allowed to any taxpayer shall not exceed 90 per centum of the tax against which it is credited, and provided also that the state law shall have been certified to the Secretary of the Treasury by the Social Security Board as satisfying certain minimum criteria. Section 902. The provisions of section 903 (42 U.S.C.A. § 1103) defining those criteria are stated in the margin.  Some of the conditions thus attached to the allowance of a credit are designed to give assurance that the state unemployment compensation law shall be one in substance as well as name. Others are designed to give assurance that the contributions shall be protected against loss after payment to the state. To this last end there are provisions that before a state law shall have the approval of the Board it must direct that the contributions to the state fund be paid over immediately to the Secretary of the Treasury to the credit of the 'Unemployment Trust Fund.' Section 904 (42 U.S.C.A. § 1104) establishing this fund is quoted below.  For the moment it is enough to say that the fund is to be held by the Secretary of the Treasury, who is to invest in government securities any portion not required in his judgment to meet current withdrawals. He is authorized and directed to pay out of the fund to any competent state agency such sums as it may duly requisition from the amount standing to its credit. Section 904(f), 42 U.S.C.A. § 1104(f).

Title III, which is also challenged as invalid, has the caption 'Grants to States for Unemployment Compensation Administration.' Under this title, certain sums of money are 'authorized to be appropriated' for the purpose of assisting the states in the administration of their unemployment compensation laws, the maximum for the fiscal year ending June 30, 1936, to be $4,000,000, and $49,000,000 for each fiscal year thereafter. Section 301, 42 U.S.C.A. § 501. No present appropriation is made to the extent of a single dollar. All that the title does is to authorize future appropriations. Actually only $2,250,000 of the $4,000,000 authorized was appropriated for 1936 (Act of Feb. 11, 1936, c. 49, 49 Stat. 1109, 1113) and only $29,000,000 of the $49,000,000 authorized for the following year (Act of June 22, 1936, c. 689, 49 Stat. 1597, 1605). The appropriations when made were not specifically out of the proceeds of the employment tax, but out of any moneys in the Treasury. Other sections of the title prescribe the method by which the payments are to be made to the state (section 302, 42 U.S.C.A. § 502) and also certain conditions to be established to the satisfaction of the Social Security Board before certifying the propriety of a payment to the Secretary of the Treasury (section 303, 42 U.S.C.A. § 503). They are designed to give assurance to the federal government that the moneys granted by it will not be expended for purposes alien to the grant, and will be used in the administration of genuine unemployment compensation laws.

The assault on the statute proceeds on an extended front. Its assailants take the ground that the tax is not an excise; that it is not uniform throughout the United States as excises are required to be; that its exceptions are so many and arbitrary as to violate the Fifth Amendment; that its purpose was not revenue, but an unlawful invasion of the reserved powers of the states; and that the states in submitting to it have yielded to coercion and have abandoned governmental functions which they are not permitted to surrender.

The objections will be considered seriatim with such further explanation as may be necessary to make their meaning clear.

First: The tax, which is described in the statute as an excise, is laid with uniformity throughout the United States as a duty, an impost, or an excise upon the relation of employment.

1. We are told that the relation of employment is one so essential to the pursuit of happiness that it may not be burdened with a tax. Appeal is made to history. From the precedents of colonial days, we are supplied with illustrations of excises common in the colonies. They are said to have been bound up with the enjoyment of particular commodities. Appeal is also made to principle or the analysis of concepts. An excise, we are told, imports a tax upon a privilege; employment, it is said, is a right, not a privilege, from which it follows that employment is not subject to an excise. Neither the one appeal nor the other leads to the desired goal.

As to the argument from history: Doubtless there were many excises in colonial days and later that were associated, more or less intimately, with the enjoyment or the use of property. This would not prove, even if no others were then known, that the forms then accepted were not subject to enlargement. Cf. Pensacola Teleg. Co. v. Western Union Telegraph Co., 96 U.S. 1, 9, 24 L.Ed. 708; In re Debs, 158 U.S. 564, 591, 15 S.Ct. 900, 39 L.Ed. 1092; South Carolina v. United States, 199 U.S. 437, 448, 449, 26 S.Ct. 110, 50 L.Ed. 261, 4 Ann.Cas. 737. But in truth other excises were known, and known since early times. Thus in 1695 (6 & 7 Wm. III, c. 6), Parliament passed an act which granted 'to His Majesty certain Rates and Duties upon Marriages, Births and Burials,' all for the purpose of 'carrying on the War against France with Vigour.' See Opinion of the Justices, 196 Mass. 603, 609, 85 N.E. 545, 547. No commodity was affected there. The industry of counsel has supplied us with an apter illustration where the tax was not different in substance from the one now challenged as invalid. In 1777, before our Constitutional Convention, Parliament laid upon employers an annual 'duty' of 21 shillings for 'every male Servant' employed in stated forms of work.  Revenue Act of 1777, 17 George III, c. 39.  The point is made as a distinction that a tax upon the use of male servants was thought of as a tax upon a luxury. Davis v. Boston & Maine R.R. Co., supra. It did not touch employments in husbandry or business. This is to throw over the argument that historically an excise is a tax upon the enjoyment of commodities. But the attempted distinction, whatever may be thought of its validity, is inapplicable to a statute of Virginia passed in 1780. There a tax of 3 pounds, 6 shillings, and 8 pence was to be paid for every male tithable above the age of twenty-one years (with stated exceptions), and a like tax for 'every white servant whatsoever, except apprentices under the age of twenty one years.' 10 Hening's Statutes of Virginia, p. 244. Our colonial forbears knew more about ways of taxing than some of their descendants seem to be willing to concede. 

The historical prop failing, the prop or fancied prop of principle remains. We learn that employment for lawful gain is a 'natural' or 'inherent' or 'inalienable' right, and not a 'privilege' at all. But natural rights, so called, are as much subject to taxation as rights of less importance.  An excise is not limited to vocations or activities that may be prohibited altogether. It is not limited to those that are the outcome of a franchise. It extends to vocations or activities pursued as of common right. What the individual does in the operation of a business is amenable to taxation just as much as what he owns, at all events if the classification is not tyrannical or arbitrary. 'Business is as legitimate an object of the taxing power as property.' City of Newton v. Atchison, 31 Kan. 151, 154, 1 P. 288, 290, 47 Am.Rep. 486 (per Brewer, J.). Indeed, ownership itself, as we had occasion to point out the other day, is only a bundle of rights and privileges invested with a single name. Henneford v. Silas Mason Co., Inc. (March 29, 1937) 300 U.S. 577, 57 S.Ct. 524, 527, 81 L.Ed. 814. 'A state is at liberty, if it pleases, to tax them all collectively, or to separate the faggots and lay the charge distributively.' Id. Employment is a business relation, if not itself a business. It is a relation without which business could seldom be carried on effectively. The power to tax the activities and relations that constitute a calling considered as a unit is the power to tax any of them. The whole includes the parts. Nashville, C. & St. L. Ry. Co. v. Wallace, 288 U.S. 249, 267, 268, 53 S.Ct. 345, 349, 350, 77 L.Ed. 730, 87 A.L.R. 1191.

The subject-matter of taxation open to the power of the Congress is as comprehensive as that open to the power of the states, though the method of apportionment may at times be different. 'The Congress shall have Power to lay and collect Taxes, Duties, Imposts and Excises.' Article 1, § 8. If the tax is a direct one, it shall be apportioned according to the census or enumeration. If it is a duty, impost, or excise, it shall be uniform throughout the United States. Together, these classes include every form of tax appropriate to sovereignty. Cf. Burnet v. Brooks, 288 U.S. 378, 403, 405, 53 S.Ct. 457, 464, 465, 77 L.Ed. 844, 86 A.L.R. 747; Brushaber v. Union Pacific R.R. Co., 240 U.S. 1, 12, 36 S.Ct. 236, 60 L.Ed. 493, L.R.A.1917D, 414, Ann.Cas.1917B, 713. Whether the tax is to be classified as an 'excise' is in truth not of critical importance. If not that, it is an 'impost' (Pollock v. Farmers' Loan & Trust Co., 158 U.S. 601, 622, 625, 15 S.Ct. 912, 39 L.Ed. 1108; Pacific Insurance Co. v. Soule, 7 Wall. 433, 445, 19 L.Ed. 95), or a 'duty' (Veazie Bank v. Fenno, 8 Wall. 533, 546, 547, 19 L.Ed. 482; Pollock v. Farmers' Loan & Trust Co., 157 U.S. 429, 570, 15 S.Ct. 673, 39 L.Ed. 759; Knowlton v. Moore, 178 U.S. 41, 46, 20 S.Ct. 747, 44 L.Ed. 969). A capitation or other 'direct' tax it certainly is not. 'Although there have been, from time to time, intimations that there might be some tax which was not a direct tax, nor included under the words 'duties, imposts, and excises,' such a tax, for more than 100 years of national existence, has as yet remained undiscovered, notwithstanding the stress of particular circumstances has invited thorough investigation into sources of revenue.' Pollock v. Farmers' Loan & Trust Co., 157 U.S. 429, 557, 15 S.Ct. 673, 680, 39 L.Ed. 759. There is no departure from that thought in later cases, but rather a new emphasis of it. Thus, in Thomas v. United States, 192 U.S. 363, 370, 24 S.Ct. 305, 306, 48 L.Ed. 481, it was said of the words 'duties, imposts, and excises' that 'they were used comprehensively to cover customs and excise duties imposed on importation, consumption, manufacture, and sale of certain commodities, privileges, particular business transactions, vocations, occupations, and the like.' At times taxpayers have contended that the Congress is without power to lay an excise on the enjoyment of a privilege created by state law. The contention has been put aside as baseless. Congress may tax the transmission of property by inheritance or will, though the states and not Congress have created the privilege of succession. Knowlton v. Moore, supra, 178 U.S. 41, at page 58, 20 S.Ct. 747, 44 L.Ed. 969. Congress may tax the enjoyment of a corporate franchise, though a state and not Congress has brought the franchise into being. Flint v. Stone Tracy Co., 220 U.S. 107, 108, 155, 31 S.Ct. 342, 55 L.Ed. 389, Ann.Cas.1912B, 1312. The statute books of the states are strewn with illustrations of taxes laid on occupations pursued of common right.  We find no basis for a holding that the power in that regard which belongs by accepted practice to the Legislatures of the states, has been denied by the Constitution to the Congress of the nation.

2. The tax being an excise, its imposition must conform to the canon of uniformity. There has been no departure from this requirement. According to the settled doctrine, the uniformity exacted is geographical, not intrinsic. Knowlton v. Moore, supra, 178 U.S. 41, at page 83, 20 S.Ct. 747, 44 L.Ed. 969; Flint v. Stone Tracy Co., supra, 220 U.S. 107, at page 158, 31 S.Ct. 342, 55 L.Ed. 389, Ann.Cas.1912B, 1312; Billings v. United States, 232 U.S. 261, 282, 34 S.Ct. 421, 58 L.Ed. 596; Stellwagen v. Clum, 245 U.S. 605, 613, 38 S.Ct. 215, 62 L.Ed. 507; LaBelle Iron Works v. United States, 256 U.S. 377, 392, 41 S.Ct. 528, 532, 65 L.Ed. 998; Poe v. Seaborn, 282 U.S. 101, 117, 51 S.Ct. 58, 61, 75 L.Ed. 239; Wright v. Vinton Branch of Mountain Trust Bank (March 29, 1937) 300 U.S. 440, 57 S.Ct. 556, 81 L.Ed. 736. 'The rule of liability shall be alike in all parts of the United States.' Florida v. Mellon, 273 U.S. 12, 17, 47 S.Ct. 265, 266, 71 L.Ed. 511.

Second: The excise is not invalid under the provisions of the Fifth Amendment by force of its exemptions.

The statute does not apply, as we have seen, to employers of less then eight. It does not apply to agricultural labor, or domestic service in a private home or to some other classes of less importance. Petitioner contends that the effect of these restrictions is an arbitrary discrimination vitiating the tax.

The Fifth Amendment unlike the Fourteenth has no equal protection clause. LaBelle Iron Works v. United States, supra; Brushaber v. Union Pacific R.R. Co., supra, 240 U.S. 1, at page 24, 36 S.Ct. 236, 60 L.Ed. 493, L.R.A.1917D, 414, Ann.Cas.1917B, 713. But even the states, though subject to such a clause, are not confined to a formula of rigid uniformity in framing measures of taxation. Swiss Oil Corporation v. Shanks, 273 U.S. 407, 413, 47 S.Ct. 393, 395, 71 L.Ed. 709. They may tax some kinds of property at one rate, and others at another, and exempt others altogether. Bell's Gap R.R. Co. v. Pennsylvania, 134 U.S. 232, 10 S.Ct. 533, 33 L.Ed. 892; Stebbins v. Riley, 268 U.S. 137, 142, 45 S.Ct. 424, 426, 69 L.Ed. 884, 44 A.L.R. 1454; Ohio Oil Co. v. Conway, 281 U.S. 146, 150, 50 S.Ct. 310, 74 L.Ed. 775. They may lay an excise on the operations of a particular kind of business, and exempt some other kind of business closely akin thereto. Quong Wing v. Kirkendall, 223 U.S. 59, 62, 32 S.Ct. 192, 56 L.Ed. 350; American Sugar Refining Co. v. Louisiana, 179 U.S. 89, 94, 21 S.Ct. 43, 45 L.Ed. 102; Armour Packing Co. v. Lacy, 200 U.S. 226, 235, 26 S.Ct. 232, 50 L.Ed. 451; Brown-Forman Co. v. Kentucky, 217 U.S. 563, 573, 30 S.Ct. 578, 54 L.Ed. 883; Heisler v. Thomas Colliery Co., 260 U.S. 245, 255, 43 S.Ct. 83, 84, 67 L.Ed. 237; State Board of Tax Com'rs v. Jackson, 283 U.S. 527, 537, 538, 51 S.Ct. 540, 543, 75 L.Ed. 1248, 73 A.L.R. 1464, 75 A.L.R. 1536. If this latitude of judgment is lawful for the states, it is lawful, a fortiori, in legislation by the Congress, which is subject to restraints less narrow and confining. Quong Wing v. Kirkendall, supra.

The classifications and exemptions directed by the statute now in controversy have support in considerations of policy and practical convenience that cannot be condemned as arbitrary. The classifications and exemptions would therefore be upheld if they had been adopted by a state and the provisions of the Fourteenth Amendment were invoked to annul them. This is held in two cases passed upon today in which precisely the same provisions were the subject of attack, the provisions being contained in the Unemployment Compensation Law of the state of Alabama (Gen.Acts Ala.1935, p. 950, as amended). Carmichael v. Southern Coal & Coke Co. (Carmichael v. Gulf States Paper Corporation), 301 U.S. 495, 57 S.Ct. 868, 81 L.Ed. --. The opinion rendered in those cases covers the ground fully. It would be useless to repeat the argument. The act of Congress is therefore valid, so far at least as its system of exemptions is concerned, and this though we assume that discrimination, if gross enough, is equivalent to confiscation and subject under the Fifth Amendment to challenge and annulment.

Third: The excise is not void as involving the coercion of the states in contravention of the Tenth Amendment or of restrictions implicit in our federal form of government.

The proceeds of the excise when collected are paid into the Treasury at Washington, and thereafter are subject to appropriation like public moneys generally. Cincinnati Soap Co. v. United States (May 3, 1937) 301 U.S. 308, 57 S.Ct. 764, 81 L.Ed. -. No presumption can be indulged that they will be misapplied or wasted.  Even if they were collected in the hope or expectation that some other and collateral good would be furthered as an incident, that without more would not make the act invalid. Sonzinsky v. United States (March 29, 1937) 300 U.S. 506, 57 S.Ct. 554, 555, 81 L.Ed. 772. This indeed is hardly questioned. The case for the petitioner is built on the contention that here an ulterior aim is wrought into the very structure of the act, and what is even more important that the aim is not only ulterior, but essentially unlawful. In particular, the 90 per cent. credit is relied upon as supporting that conclusion. But before the statute succumbs to an assault upon these lines, two propositions must be made out by the assailant. Cincinnati Soap Co. v. United States, supra. There must be a showing in the first place that separated from the credit the revenue provisions are incapable of standing by themselves. There must be a showing in the second place that the tax and the credit in combination are weapons of coercion, destroying or impairing the autonomy of the states. The truth of each proposition being essential to the success of the assault, we pass for convenience to a consideration of the second, without pausing to inquire whether there has been a demonstration of the first.

To draw the line intelligently between duress and inducement, there is need to remind ourselves of facts as to the problem of unemployment that are now matters of common knowledge. West Coast Hotel Co. v. Parrish (March 29, 1937) 300 U.S. 379, 57 S.Ct. 578, 81 L.Ed. 703. The relevant statistics are gathered in the brief of counsel for the government. Of the many available figures a few only will be mentioned. During the years 1929 to 1936, when the country was passing through a cyclical depression, the number of the unemployed mounted to unprecedented heights. Often the average was more than 10 million; at times a peak was attained of 16 million or more. Disaster to the breadwinner meant disaster to dependents. Accordingly the roll of the unemployed, itself formidable enough, was only a partial roll of the destitute or needy. The fact developed quickly that the states were unable to give the requisite relief. The problem had become national in area and dimensions. There was need of help from the nation if the people were not to starve. It is too late today for the argument to be heard with tolerance that in a crisis so extreme the use of the moneys of the nation to relieve the unemployed and their dependents is a use for any purpose narrower than the promotion of the general welfare. Cf. United States v. Butler, 297 U.S. 1, 65, 66, 56 S.Ct. 312, 319, 80 L.Ed. 477, 102 A.L.R. 914; Helvering v. Davis, 301 U.S. 619, 672, 57 S.Ct. 904, 81 L.Ed. --, decided herewith. The nation responded to the call of the distressed. Between January 1, 1933, and July 1, 1936, the states (according to statistics submitted by the government) incurred obligations of $689,291,802 for emergency relief; local subdivisions an additional $775,675,366. In the same period the obligations for emergency relief incurred by the national government were $2,929,307,125, or twice the obligations of states and local agencies combined. According to the President's budget message for the fiscal year 1938, the national government expended for public works and unemployment relief for the three fiscal years 1934, 1935, and 1936, the stupendous total of $8,681,000,000. The parens patriae has many reasons-fiscal and economic as well as social and moral-for planning to mitigate disasters that bring these burdens in their train.

In the presence of this urgent need for some remedial expedient, the question is to be answered whether the expedient adopted has overlept the bounds of power. The assailants of the statute say that its dominant end and aim is to drive the state Legislatures under the whip of economic pressure into the enactment of unemployment compensation laws at the bidding of the central government. Supporters of the statute say that its operation is not constraint, but the creation of a larger freedom, the states and the nation joining in a co-operative endeavor to avert a common evil. Before Congress acted, unemployment compensation insurance was still, for the most part, a project and no more. Wisconsin was the pioneer. Her statute was adopted in 1931. At times bills for such insurance were introduced elsewhere, but they did not reach the stage of law. In 1935, four states (California, Massachusetts, New Hampshire, and New York) passed unemployment laws on the eve of the adoption of the Social Security Act, and two others did likewise after the federal act and later in the year. The statutes differed to some extent in type, but were directed to a common end. In 1936, twenty-eight other states fell in line, and eight more the present year. But if states had been holding back before the passage of the federal law, inaction was not owing, for the most part, to the lack of sympathetic interest. Many held back through alarm lest in laying such a toll upon their industries, they would place themselves in a position of economic disadvantage as compared with neighbors or competitors. See House Report, No. 615, 74th Congress, 1st session, p. 8; Senate Report, No. 628, 74th Congress, 1st session, p. 11.  Two consequences ensued. One was that the freedom of a state to contribute its fair share to the solution of a national problem was paralyzed by fear. The other was that in so far as there was failure by the states to contribute relief according to the measure of their capacity, a disproportionate burden, and a mountainous one, was laid upon the resources of the government of the nation.

The Social Security Act is an attempt to find a method by which all these public agencies may work together to a common end. Every dollar of the new taxes will continue in all likelihood to be used and needed by the nation as long as states are unwilling, whether through timidity or for other motives, to do what can be done at home. At least the inference is permissible that Congress so believed, though retaining undiminished freedom to spend the money as it pleased. On the other hand, fulfillment of the home duty will be lightened and encouraged by crediting the taxpayer upon his account with the Treasury of the nation to the extent that his contributions under the laws of the locality have simplified or diminished the problem of relief and the probable demand upon the resources of the fisc. Duplicated taxes, or burdens that approach them are recognized hardships that government, state or national, may properly avoid. Henneford v. Silas Mason Co., Inc., supra; Kidd v. Alabama, 188 U.S. 730, 732, 23 S.Ct. 401, 47 L.Ed. 669; Watson v. State Comptroller, 254 U.S. 122, 125, 41 S.Ct. 43, 44, 65 L.Ed. 170. If Congress believed that the general welfare would better be promoted by relief through local units than by the system then in vogue, the co-operating localities ought not in all fairness to pay a second time.

Who then is coerced through the operation of this statute? Not the taxpayer. He pays in fulfillment of the mandate of the local legislature. Not the state. Even now she does not offer a suggestion that in passing the unemployment law she was affected by duress. See Carmichael v. Southern Coal & Coke Co. (Carmichael v. Gulf States Paper Corporation), supra. For all that appears, she is satisfied with her choice, and would be sorely disappointed if it were now to be annulled. The difficulty with the petitioner's contention is that it confuses motive with coercion. 'Every tax is in some measure regulatory. To some extent it interposes an economic impediment to the activity taxed as compared with others not taxed.' Sonzinsky v. United States, supra. In like manner every rebate from a tax when conditioned upon conduct is in some measure a temptation. But to hold that motive or temptation is equivalent to coercion is to plunge the law in endless difficulties. The outcome of such a doctrine is the acceptance of a philosophical determinism by which choice becomes impossible. Till now the law has been guided by a robust common sense which assumes the freedom of the will as a working hypothesis in the solution of its problems. The wisdom of the hypothesis has illustration in this case. Nothing in the case suggests the exertion of a power akin to undue influence, if we assume that such a concept can ever be applied with fitness to the relations between state and nation. Even on that assumption the location of the point at which pressure turns into compulsion, and ceases to be inducement, would be a question of degree, at times, perhaps, of fact. The point had not been reached when Alabama made her choice. We cannot say that she was acting, not of her unfettered will, but under the strain of a persuasion equivalent to undue influence, when she chose to have relief administered under laws of her own making, by agents of her own selection, instead of under federal laws, administered by federal officers, with all the ensuing evils, at least to many minds, of federal patronage and power. There would be a strange irony, indeed, if her choice were now to be annulled on the basis of an assumed duress in the enactment of a statute which her courts have accepted as a true expression of her will. Beeland Wholesale Co. v. Kaufman, supra. We think the choice must stand.

In ruling as we do, we leave many questions open. We do not say that a tax is valid, when imposed by act of Congress, if it is laid upon the condition that a state may escape its operation through the adoption of a statute unrelated in subject-matter to activities fairly within the scope of national policy and power. No such question is before us. In the tender of this credit Congress does not intrude upon fields foreign to its function. The purpose of its intervention, as we have shown, is to safeguard its own treasury and as an incident to that protection to place the states upon a footing of equal opportunity. Drains upon its own resources are to be checked; obstructions to the freedom of the states are to be leveled. It is one thing to impose a tax dependent upon the conduct of the taxpayers, or of the state in which they live, where the conduct to be stimulated or discouraged is unrelated to the fiscal need subserved by the tax in its normal operation, or to any other end legitimately national. The Child Labor Tax Case, 259 U.S. 20, 42 S.Ct. 449, 66 L.Ed. 817, 21 A.L.R. 1432, and Hill v. Wallace, 259 U.S. 44, 42 S.Ct. 453, 66 L.Ed. 822, were decided in the belief that the statutes there condemned were exposed to that reproach. Cf. United States v. Constantine, 296 U.S. 287, 56 S.Ct. 223, 80 L.Ed. 233. It is quite another thing to say that a tax will be abated upon the doing of an act that will satisfy the fiscal need, the tax and the alternative being approximate equivalents. In such circumstances, if in no others, inducement or persuasion does not go beyond the bounds of power. We do not fix the outermost line. Enough for present purposes that wherever the line may be, this statute is within it. Definition more precise must abide the wisdom of the future.

Florida v. Mellon, 273 U.S. 12, 47 S.Ct. 265, 71 L.Ed. 511, supplies us with a precedent, if precedent be needed. What was in controversy there was section 301 of the Revenue Act of 1926 (44 Stat. 69), which imposes a tax upon the transfer of a decedent's estate, while at the same time permitting a credit, not exceeding 80 per cent., for 'the amount of any estate, inheritance, legacy, or succession taxes actually paid to any State or Territory.' Florida challenged that provision as unlawful. Florida had no inheritance taxes and alleged that under its constitution it could not levy any. 273 U.S. 12, 15, 47 S.Ct. 265, 71 L.Ed. 511. Indeed, by abolishing inheritance taxes, it had hoped to induce wealthy persons to become its citizens. See 67 Cong. Rec., Part 1, pp. 735, 752. It argued at our bar that 'the Estate Tax provision was not passed for the purpose of raising federal revenue' (273 U.S. 12, 14, 47 S.Ct. 265, 71 L.Ed. 511), but rather 'to coerce States into adopting estate or inheritance tax laws' (273 U.S. 12, 13, 47 S.Ct. 265, 71 L.Ed. 511). In fact, as a result of the 80 per cent. credit, material changes of such laws were made in thirty-six states.  In the face of that attack we upheld the act as valid. Cf. Massachusetts v. Mellon, 262 U.S. 447, 482, 43 S.Ct. 597, 599, 67 L.Ed. 1078; also Act of August 5, 1861, c. 45, 12 Stat. 292; Act of May 13, 1862, c. 66, 12 Stat. 384.

United States v. Butler, supra, is cited by petitioner as a decision to the contrary. There a tax was imposed on processors of farm products, the proceeds to be paid to farmers who would reduce their acreage and crops under agreements with the Secretary of Agriculture, the plan of the act being to increase the prices of certain farm products by decreasing the quantities produced. The court held (1) that the socalled tax was not a true one (297 U.S. 1, at pages 56, 61, 56 S.Ct. 312, 315, 317, 80 L.Ed. 477, 102 A.L.R. 914), the proceeds being earmarked for the benefit of farmers complying with the prescribed conditions, (2) that there was an attempt to regulate production without the consent of the state in which production was affected, and (3) that the payments to farmers were coupled with coercive contracts (297 U.S. 1, at page 73, 56 S.Ct. 312, 322, 80 L.Ed. 477, 102 A.L.R. 914), unlawful in their aim and oppressive in their consequences. The decision was by a a divided court, a minority taking the view that the objections were untenable. None of them is applicable to the situation here developed.

(a) The proceeds of the tax in controversy are not earmarked for a special group.

(b) The unemployment compensation law which is a condition of the credit has had the approval of the state and could not be a law without it.

(c) The condition is not linked to an irrevocable agreement, for the state at its pleasure may repeal its unemployment law (section 903(a)(6), 42 U.S.C.A. § 1103(a)(6), terminate the credit, and place itself where it was before the credit was accepted.

(d) The condition is not directed to the attainment of an unlawful end, but to an end, the relief of unemployment, for which nation and state may lawfully coo perate.

Fourth: The statute does not call for a surrender by the states of powers essential to their quasi sovereign existence.

Argument to the contrary has its source in two sections of the act. One section (903 ) defines the minimum criteria to which a state compensation system is required to conform if it is to be accepted by the Board as the basis for a credit. The other section (904 ) rounds out the requirement with complementary rights and duties. Not all the criteria or their incidents are challenged as unlawful. We will speak of them first generally, and then more specifically in so far as they are questioned.

A credit to taxpayers for payments made to a state under a state unemployment law will be manifestly futile in the absence of some assurance that the law leading to the credit is in truth what it professes to be. An unemployment law framed in such a way that the unemployed who look to it will be deprived of reasonable protection is one in name and nothing more. What is basic and essential may be assured by suitable conditions. The terms embodied in these sections are directed to that end. A wide range of judgment is given to the several states as to the particular type of statute to be spread upon their books. For anything to the contrary in the provisions of this act they may use the pooled unemployment form, which is in effect with variations in Alabama, California, Michigan, New York, and elsewhere. They may establish a system of merit ratings applicable at once or to go into effect later on the basis of subsequent experience. Cf. Sections 909, 910, 42 U.S.C.A. §§ 1109, 1110. They may provide for employee contributions as in Alabama and California, or put the entire burden upon the employer as in New York. They may choose a system of unemployment reserve accounts by which an employer is permitted after his reserve has accumulated to contribute at a reduced rate or even not at all. This is the system which had its origin in Wisconsin. What they may not do, if they would earn the credit, is to depart from those standards which in the judgment of Congress are to be ranked as fundamental. Even if opinion may differ as to the fundamental quality of one or more of the conditions, the difference will not avail to vitiate the statute. In determining essentials, Congress must have the benefit of a fair margin of discretion. One cannot say with reason that this margin has been exceeded, or that the basic standards have been determined in any arbitrary fashion. In the event that some particular condition shall be found to be too uncertain to be capable of enforcement, it may be severed from the others, and what is left will still be valid.

We are to keep in mind steadily that the conditions to be approved by the Board as the basis for a credit are not provisions of a contract, but terms of a statute, which may be altered or repealed. Section 903(a)(6). The state does not bind itself to keep the law in force. It does not even bind itself that the moneys paid into the federal fund will be kept there indefinitely or for any stated time. On the contrary, the Secretary of the Treasury will honor a requisition for the whole or any part of the deposit in the fund whenever one is made by the appropriate officials. The only consequence of the repeal or excessive amendment of the statute, or the expenditure of the money, when requisitioned, for other than compensation uses or administrative expenses, is that approval of the law will end, and with it the allowance of a credit, upon notice to the state agency and an opportunity for hearing. Section 903(b, c), 42 U.S.C.A. § 1103(b, c).

These basic considerations are in truth a solvent of the problem. Subjected to their test, the several objections on the score of abdication are found to be unreal.

Thus, the argument is made that by force of an agreement the moneys when withdrawn must be 'paid through public employment offices in the State or such other agencies as the Board may approve.' Section 903(a)(1), 42 U.S.C.A. § 1103(a)(1). But in truth there is no agreement as to the method of disbursement. There is only a condition which the state is free at pleasure to disregard or to fulfill. Moreover, approval is not requisite if public employment offices are made the disbursing instruments. Approval is to be a check upon resort to 'other agencies' that may perchance, be irresponsible. A state looking for a credit must give assurance that her system has been organized upon a base of rationality.

There is argument again that the moneys when withdrawn are to be devoted to specific uses, the relief of unemployment, and that by agreement for such payment the quasi-sovereign position of the state has been impaired, if not abandoned. But again there is confusion between promise and condition. Alabama is still free, without breach of an agreement to change her system over night. No officer or agency of the national government can force a compensation law upon her or keep it in existence. No officer or agency of that government, either by suit or other means, can supervise or control the application of the payments.

Finally and chiefly, abdication is supposed to follow from section 904 of the statute and the parts of section 903 that are complementary thereto. Section 903(a)(3). By these the Secretary of the Treasury is authorized and directed to receive and hold in the Unemployment Trust Fund all moneys deposited therein by a state agency for a state unemployment fund and to invest in obligations of the United States such portion of the fund as is not in his judgment required to meet current withdrawals. We are told that Alabama in consenting to that deposit has renounced the plenitude of power inherent in her statehood.

The same pervasive misconception is in evidence again. All that the state has done is to say in effect through the enactment of a statute that her agents shall be authorized to deposit the unemployment tax receipts in the Treasury at Washington. Alabama Unemployment Act of September 14, 1935, section 10(i) (Gen.Acts Ala.1935, p. 961). The statute may be repealed. Section 903(a)(6), 42 U.S.C.A. § 1103(a)(6). The consent may be revoked. The deposits may be withdrawn. The moment the state commission gives notice to the depositary that it would like the moneys back, the Treasurer will return them. To find state destruction there is to find it almost anywhere. With nearly as much reason one might say that a state abdicates its functions when it places the state moneys on deposit in a national bank.

There are very good reasons of fiscal and governmental policy why a state should be willing to make the Secretary of the Treasury the custodian of the fund. His possession of the moneys and his control of investments will be an assurance of stability and safety in times of stress and strain. A report of the Ways and Means Committee of the House of Representatives, quoted in the margin, develops the situation clearly.  Nor is there risk of loss or waste. The credit of the Treasury is at all times back of the deposit, with the result that the right of withdrawal will be unaffected by the fate of any intermediate investments, just as if a checking account in the usual form had been opened in a bank.

The inference of abdication thus dissolves in thinnest air when the deposit is conceived of as dependent upon a statutory consent, and not upon a contract effective to create a duty. By this we do not intimate that the conclusion would be different if a contract were discovered. Even sovereigns may contract without derogating from their sovereignty. Perry v. United States, 294 U.S. 330, 353, 55 S.Ct. 432, 436, 95 A.L.R. 1335, 79 L.Ed. 912; 1 Oppenheim, International Law (4th Ed.) §§ 493, 494; Hall, International Law (8th Ed.) § 107; 2 Hyde, International Law, § 489. The states are at liberty, upon obtaining the consent of Congress, to make agreements with one another. Constitution, art. 1, § 10, par. 3. Poole v. Fleeger, 11 Pet. 185, 209, 9 L.Ed. 680; Rhode Island v. Massachusetts, 12 Pet. 657, 725, 9 L.Ed. 1233. We find no room for doubt that they may do the like with Congress if the essence of their statehood is maintained without impairment.  Alabama is seeking and obtaining a credit of many millions in favor of her citizens out of the Treasury of the nation. Nowhere in our scheme of government-in the limitations express or implied of our Federal Constitution-do we find that she is prohibited from assenting to conditions that will assure a fair and just requital for benefits received. But we will not labor the point further. An unreal prohibition directed to an unreal agreement will not vitiate an act of Congress, and cause it to collapse in ruin.

Fifth: Title III of the act is separable from title IX, and its validity is not at issue.

The essential provisions of that title have been stated in the opinion. As already pointed out, the title does not appropriate a dollar of the public moneys. It does no more than authorize appropriations to be made in the future for the purpose of assisting states in the administration of their laws, if Congress shall decide that appropriations are desirable. The title might be expunged, and title IX would stand intact. Without a severability clause we should still be led to that conclusion. The presence of such a clause (section 1103, 42 U.S.C.A. § 1303) makes the conclusion even clearer. Williams v. Standard Oil Co., 278 U.S. 235, 242, 49 S.Ct. 115, 117, 73 L.Ed. 287, 60 A.L.R. 596; Utah Power & Light Co. v. Pfost, 286 U.S. 165, 184, 52 S.Ct. 548, 553, 76 L.Ed. 1038; Carter v. Carter Coal Co., 298 U.S. 238, 312, 56 S.Ct. 855, 873, 80 L.Ed. 1160.

The judgment is affirmed.

Notes

 Sec. 903. (a) The Social Security Board shall approve any State law submitted to it, within thirty days of such submission, which it finds provides that-

(1) All compensation is to be paid through public employment offices in the State or such other agencies as the Board may approve;

(2) No compensation shall be payable with respect to any day of unemployment occurring within two years after the first day of the first period with respect to which contributions are required;

(3) All money received in the unemployment fund shall immediately upon such receipt be paid over to the Secretary of the Treasury to the credit of the Unemployment Trust Fund established by Section 904 (section 1104 of this chapter);

(4) All money withdrawn from the Unemployment Trust Fund by the State agency shall be used solely in the payment of compensation, exclusive of expenses of administration;

(5) Compensation shall not be denied in such State to any otherwise eligible individual for refusing to accept new work under any of the following conditions: (A) If the position offered is vacant due directly to a strike, lockout, or other labor dispute; (B) if the wages, hours, or other conditions of the work offered are substantially less favorable to the individual than those prevailing for similar work in the locality; (C) if as a condition of being employed the individual would be required to join a company union or to resign from or refrain from joining any bona fide labor organization;

(6) All the rights, privileges, or immunities conferred by such law or by acts done pursuant thereto shall exist subject to the power of the legislature to amend or repeal such law at any time.

The Board shall, upon approving such law, notify the Governor of the State of its approval.

(b) On December 31 in each taxable year the Board shall certify to the Secretary of the Treasury each State whose law it has previously approved, except that it shall not certify any State which, after reasonable notice and opportunity for hearing to the State agency, the Board finds has changed its law so that it no longer contains the provisions specified in subsection (a) or has with respect to such taxable year failed to comply substantially with any such provision.

(c) If, at any time during the taxable year, the Board has reason to believe that a State whose law it has previously approved, may not be certified under subsection (b), it shall promptly so notify the Governor of such State.

 Sec. 904. (a) There is hereby established in the Treasury of the United States a trust fund to be known as the 'Unemployment Trust Fund,' hereinafter (in this title) called the 'Fund'. The Secretary of the Treasury is authorized and directed to receive and hold in the Fund all moneys deposited therein by a State agency from a State unemployment fund. Such deposit may be made directly with the Secretary of the Treasury or with any Federal reserve bank or member bank of the Federal Reserve System designated by him for such purpose.

(b) It shall be the duty of the Secretary of the Treasury to invest such portion of the Fund as is not, in his judgment, required to meet current withdrawals. Such investment may be made only in interest bearing obligations of the United States or in obligations guaranteed as to both principal and interest by the United States. For such purpose such obligations may be acquired (1) on original issue at par, or (2) by purchase of outstanding obligations at the market price. The purposes for which obligations of the United States may be issued under the Second Liberty Bond Act, as amended (section 752 of Title 31), are hereby extended to authorize the issuance at par of special obligations exclusively to the Fund. Such special obligations shall bear interest at a rate equal to the average rate of interest, computed as of the end of the calendar month next preceding the date of such issue, borne by all interest-bearing obligations of the United States then forming part of the public debt; except that where such average rate is not a multiple or one-eighth of 1 per centum, the rate of interest of such special obligations shall be the multiple of one-eighth of 1 per centum next lower than such average rate. Obligations other than such special obligations may be acquired for the Fund only on such terms as to provide an investment yield not less than the yield which would be required in the case of special obligations if issued to the Fund upon the date of such acquisition.

(c) Any obligations acquired by the Fund (except special obligations issued exclusively to the Fund) may be sold at the market price, and such special obligations may be redeemed at par plus accrued interest.

(d) The interest on, and the proceeds from the sale or redemption of, any obligations held in the Fund shall be credited to and form a part of the Fund.

(e) The Fund shall be invested as a single fund, but the Secretary of the Treasury shall maintain a separate book account for each State agency and shall credit quarterly on March 31, June 30, September 30, and December 31, of each year, to each account, on the basis of the average daily balance of such account, a proportionate part of the earnings of the Fund for the quarter ending on such date.

(f) The Secretary of the Treasury is authorized and directed to pay out of the Fund to any State agency such amount as it may duly requisition, not exceeding the amount standing to the account of such State agency at the time of such payment.

 The list of services is comprehensive. It included: 'Maitre d'Hotel, House-steward, Master of the House, Groom of the Chamber, Valet de Chambre, Butler, Under-butler, Clerk of the Kitchen, Confectioner, Cook, House-porter, Footman, Running-footman, Coachman, Groom, Postillion, Stable-boy, and the respective Helpers in the Stables of such Coachman, Groom, or Postillion, or in the Capacity of Gardener (not being a Day-labourer), Park-keeper, Game-keeper, Huntsman, Whipper-in. * * *'

 The statute, amended from time to time, but with its basic structure unaffected, is on the statute books today. Act of 1803, 43 George III, c. 161; Act of 1812, 52 George III, c. 93; Act of 1853, 16 & 17 Vict., c. 90; Act of 1869, 32 & 33 Vict., c. 14. 24 Halsbury's Laws of England, 1st ed., p. 692 et seq.

 See, also, the following laws imposing occupation taxes: 12 Hening's Statutes of Virginia, p. 285, Act of 1786; Chandler, The Colonial Records of Georgia, vol. 19, Part 2, p. 88, Act of 1778; 1 Potter, Taylor and Yancey, North Carolina Revised Laws, p. 501, Act of 1784.

 The cases are brought together by Prof. John MacArthur Maguire in an essay, 'Taxing the Exercise of National Rights' (Harvard Legal Essays, 1934, pp. 273, 322).

The Massachusetts decisions must be read in the light of the particular definitions and restrictions of the Massachusetts Constitution. Opinions of the Justices, 282 Mass. 619, 622, 186 N.E. 490; Id., 266 Mass. 590, 593, 165 N.E. 904, 63 A.L.R. 952. And see Howes Brothers Co. v. Massachusetts Unemployment Compensation Commission, supra, 5 N.E.(2d) 720, at pages 730, 731.

 Alabama General Acts, 1935, No. 194, art. 13, § 348 et seq. (flat license tax on occupations); Arizona Revised Code, Supplement (1936) § 3138a et seq. (general gross receipts tax); Connecticut General Statutes, Supplement (1935) §§ 457c, 458c (gross receipts tax on unincorporated businesses); Revised Code of Delaware (1935) §§ 192-197 (flat license tax on occupations); Compiled Laws of Florida, Permanent Supplement (1936) Vol. 1, § 1279 (1) et seq. (flat license tax on occupations); Georgia Laws, 1935, p. 11 (flat license tax on occupations); Indiana Statutes Ann. (1933) § 64-2601 et seq. (general gross receipts tax); Louisiana Laws, 3rd Extra Session, 1934, Act No. 15, 1st Extra Session, 1935, Acts Nos. 5, 6 (general gross receipts tax); Mississippi Laws, 1934, c. 119 (general gross receipts tax); New Mexico Laws, 1935, c. 73 (general gross receipts tax); South Dakota Laws, 1933, c. 184 (general gross receipts tax, expired June 30, 1935); Washington Laws, 1935, c. 180, title 2, p. 709 (general gross receipts tax); West Virginia Code, Supplement (1935) § 960 (general gross receipts tax).

 The total estimated receipts without taking into account the 90 per cent. deduction, range from $225,000,000 in the first year to over $900,000,000 seven years later. Even if the maximum credits are available to taxpayers in all states, the maximum estimated receipts from Title IX will range between $22,000,000, at one extreme, to $90,000,000 at the other. If some of the states hold out in their unwillingness to pass statutes of their own, the receipts will be still larger.

 The attitude of Massachusetts is significant. Her act became a law August 12, 1935, two days before the federal act. Even so, she prescribed that its provisions should not become operative unless the federal bill became a law, or unless eleven of the following states (Alabama, Connecticut, Delaware, Georgia, Illinois, Indiana, Iowa, Maine, Maryland, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, North Carolina, Ohio, Rhode Island, South Carolina, Tennessee, Vermont) should impose on their employers burdens substantially equivalent. St. of 1935, c. 479, p. 655. Her fear of competition is thus forcefully attested. See, also, California St.1935, c. 352, art. 1, § 2; Idaho Laws 1936 (Third Extra Session) c. 12, § 26; Mississippi Laws, 1936, c. 176, § 2-a.

 Perkins, State Action under the Federal Estate Tax Credit Clause, 13 North Carolina L. Rev. 271, 280.

 See note 1, supra.

 See note 2, supra.

 'This last provision will not only afford maximum safety for these funds but is very essential to insure that they will operate to promote the stability of business rather than the reverse. Unemployment reserve funds have the peculiarity that the demands upon them fluctuate considerably, being heaviest when business slackens. If, in such times, the securities in which these funds are invested are thrown upon the market for liquidation, the net effect is likely to be increased deflation. Such a result is avoided in this bill through the provision that all reserve funds are to be held by the United States Treasury, to be invested and liquidated by the Secretary of the Treasury in a manner calculated to promote business stability. When business conditions are such that investment in securities purchased on the open market is unwise, the Secretary of the Treasury may issue special nonnegotiable obligations exclusively to the unemployment trust fund. When a reverse situation exists and heavy drains are made upon the fund for payment of unemployment benefits, the Treasury does not have to dispose of the securities belonging to the fund in open market but may assume them itself. With such a method of handling the reserve funds, it is believed that this bill will solve the problem often raised in discussions of unemployment compensation, regarding the possibility of transferring purchasing power from boom periods to depression periods. It will in fact operate to sustain purchasing power at the onset of a depression without having any counteracting deflationary tendencies.' House Report, No. 615, 74th Congress, 1st session, p. 9.

 Cf. 12 Stat. 503 (7 U.S.C.A. § 301 et seq.); 26 Stat. 417 (7 U.S.C.A. § 321 et seq.).