NCDs (National Coverage Determinations) and LCDs (Local Coverage Determinations) are. decisions by Medicare and their administrative contractors that provide coverage information. and determine whether services are reasonable and necessary on certain services offered by. participating providers.
A tax (from the Latin taxo) is a financial charge or other levy imposed upon a taxpayer (an individual or legal entity) by a state or the functional equivalent of a state to fund various public expenditures. A failure to pay, or evasion of or resistance to taxation, is usually punishable by law.
DEFINITION of 'Tax Rate'. The percentage at which an individual or corporation is taxed. The tax rate is the tax imposed by the federal government and some states based on an individual's taxable income or a corporation's earnings. The United States uses a progressive tax rate system, where the percentage of tax increases as taxable income.