Cash compensation is the money an employer pays you for your work: base salary or hourly wages, plus bonuses, commissions, tips, overtime, and any cash allowances added to your paycheck. Every dollar of it is treated as gross income under federal tax law,1Office of the Law Revision Counsel. 26 USC 61 – Gross Income Defined which means it is subject to federal income tax withholding, Social Security tax, and Medicare tax from the moment it hits your pay stub. That is why your take-home pay is always smaller than the number on your offer letter.
What Counts as Cash Compensation
The fixed portion is the predictable part. If you are salaried, your employer divides your annual salary into equal installments across pay periods, and the amount stays the same whether you worked 38 hours that week or 50.2U.S. Department of Labor. FLSA Overtime Security Advisor – Compensation Requirements If you are paid hourly, the rate is fixed but the check moves with your schedule. The federal minimum wage sets the floor at $7.25 per hour, and many states and localities set higher floors.3U.S. Department of Labor. State Minimum Wage Laws
The variable portion is where paychecks swing. It includes:
- Commissions, typically a percentage of revenue or profit you bring in.
- Performance bonuses, whether promised in an offer letter or awarded at the employer’s discretion.
- Tips, whether received directly, through tip-sharing, or from charged tips distributed by your employer. Federal law lets employers pay a cash wage as low as $2.13 per hour to tipped workers as long as tips bring total earnings to at least $7.25; if they don’t, the employer owes the difference.4Internal Revenue Service. Topic No. 761, Tips – Withholding and Reporting5U.S. Department of Labor. Minimum Wages for Tipped Employees
- Overtime, which non-exempt employees earn at one and one-half times their regular rate for hours over 40 in a workweek.6eCFR. 29 CFR Part 785 – Hours Worked
Cash allowances also count. Housing allowances, car allowances, meal stipends, and shift differentials are flat sums added to your paycheck to cover job-related costs or reward less desirable schedules. Because they aren’t tied to documented business expenses under an accountable plan, the IRS generally treats them as taxable wages.7Internal Revenue Service. Tax Withholding
Gift cards fall in the same bucket, and this surprises people every December. The IRS treats any cash, gift certificate, or item easily exchanged for cash as taxable wages, no matter how small the amount.8Internal Revenue Service. Publication 525 – Taxable and Nontaxable Income A $25 coffee shop card handed out at the holiday party is technically wages that belong on your W-2.
How Cash Compensation Is Taxed
Three separate deductions come out of nearly every paycheck: federal income tax, Social Security, and Medicare. State income tax often makes a fourth, though a handful of states have none.
Federal Income Tax Withholding
Your employer is required to withhold federal income tax from every paycheck.9Office of the Law Revision Counsel. 26 USC 3402 – Income Tax Collected at Source How much depends on the Form W-4 you filed when you were hired: your filing status, dependents, and any extra withholding you requested.7Internal Revenue Service. Tax Withholding Get the W-4 wrong in one direction and you face a tax bill in April; get it wrong in the other and you have given the government an interest-free loan for the year.
Social Security and Medicare
Federal Insurance Contributions Act taxes come out on top of income tax. The employee share is 6.2% for Social Security and 1.45% for Medicare, and your employer matches both.10Office of the Law Revision Counsel. 26 USC Chapter 21 – Federal Insurance Contributions Act
Social Security has a ceiling. In 2026, only the first $184,500 of your earnings is subject to the 6.2% tax, and the maximum employee contribution is $11,439.11Social Security Administration. Contribution and Benefit Base Once your year-to-date wages cross that line, Social Security withholding stops for the rest of the year and your paychecks get noticeably larger. Medicare has no cap; the 1.45% applies to every dollar.
High earners pay an additional 0.9% Medicare surtax on wages above $200,000 for single filers, $250,000 for joint filers, or $125,000 for married filing separately. Employers begin withholding the extra 0.9% once your wages pass $200,000 in a calendar year, regardless of your filing status, so any mismatch with your actual liability is settled when you file.12Internal Revenue Service. Topic No. 560, Additional Medicare Tax
What Shows Up on Your W-2
Your employer must issue Form W-2 by January 31 of the following year, reporting all taxable cash compensation along with everything withheld for federal income tax, Social Security, and Medicare.13Internal Revenue Service. General Instructions for Forms W-2 and W-3 (2026)14Office of the Law Revision Counsel. 26 USC 6051 – Receipts for Employees Wages, tips, bonuses, and taxable allowances all appear on that form.
If your withholding was too low and you owe when you file, the IRS charges an underpayment penalty calculated as interest on the shortfall, currently 7% per year compounded daily.15Internal Revenue Service. Interest Rates Remain the Same for the First Quarter of 2026
Why Your Bonus Looks Smaller Than You Expected
Bonuses, commissions, overtime, and other pay outside your regular salary are classified as supplemental wages, and the IRS lets employers withhold on them differently. The common approach is a flat 22% for federal income tax.16Internal Revenue Service. Publication 15 (2026), Employer’s Tax Guide That is why a $5,000 bonus often lands closer to $3,500 after federal income tax and FICA come out.
If your total supplemental wages from one employer top $1 million in a calendar year, everything above that threshold is withheld at 37%.16Internal Revenue Service. Publication 15 (2026), Employer’s Tax Guide Either withholding rate is only an estimate. Your actual tax liability is settled on your return, and any over-withholding comes back as a refund.
If You Are Paid as an Independent Contractor Instead
The rules above apply to employees. When a business pays you as an independent contractor, it does not withhold federal income tax, Social Security, or Medicare. You handle all of it yourself.
Self-employment tax covers both the employee and employer shares of FICA: 12.4% for Social Security on net earnings up to $184,500 and 2.9% for Medicare on all net earnings, for a combined rate of 15.3%.17Social Security Administration. If You Are Self-Employed That is more than double what an employee pays because no employer is picking up the other half. You can deduct the employer-equivalent portion (half of your self-employment tax) when calculating your adjusted gross income.18Internal Revenue Service. Topic No. 554, Self-Employment Tax
Businesses that pay a contractor $2,000 or more during the year report the payments on Form 1099-NEC. The threshold rose from $600 to $2,000 in 2026 and adjusts for inflation starting in 2027.19Internal Revenue Service. Publication 1099 General Instructions for Certain Information Returns (2026) Even if no 1099 arrives, the income is still taxable and you are still required to report it.