Social Security taxes are paid into the Social Security Trust Fund maintained by the U.S. Treasury (technically, the Federal Old-Age and Survivors Insurance Trust Fund, as established by 42 U.S.C. Â§ 401(a)). Current year expenses are paid from current Social Security tax revenues.
If you're an employee and don't get reimbursed, you can write off mileage as an employee expense if you itemize deductions. The IRS sets limits on what you can claim: driving from your dorm room to your workplace isn't deductible mileage, for instance.
If you use the standard mileage rate for a year, you canât deduct your actual car expenses for that year. You canât deduct depreciation, lease payments, maintenance and repairs, gasoline (including gasoline taxes), oil, insurance, or vehicle registration fees.