If you’ve ever looked at your pay stub and wondered why your net pay is lower than expected, FICA tax is one of the primary reasons. FICA taxes are mandatory federal payroll deductions taken from almost every worker’s paycheck in the United States.
This complete guide breaks down what FICA tax is, current 2026 tax rates and wage caps, who pays it, and how it differs from federal income tax.
FICA stands for the Federal Insurance Contributions Act. Enacted by Congress, FICA is a U.S. federal payroll tax deducted from employees’ paychecks to fund two essential national social insurance programs:
Social Security: Provides retirement benefits, disability income, and survivor benefits to qualifying workers and their families.
Medicare: Provides medical insurance and healthcare benefits primarily to adults aged 65 and older, as well as young people with certain disabilities.
Unlike federal income tax (which funds general government operations), FICA taxes are earmarked specifically for these two trust funds.
FICA tax is a split tax made up of two distinct parts: Social Security and Medicare. Both you (the employee) and your employer pay an equal share of these taxes.
| Component | Employee Rate | Employer Rate | Total Tax Rate | 2026 Wage Base Limit |
|---|---|---|---|---|
| Social Security | 6.2% | 6.2% | 12.4% | $184,500 (Capped) |
| Medicare | 1.45% | 1.45% | 2.90% | No Limit (Uncapped) |
| Total FICA Tax | 7.65% | 7.65% | 15.30% | — |
Social Security Wage Cap: Once your calendar-year earnings reach $184,500, the 6.2% Social Security tax deduction stops for the remainder of that year.
Medicare Uncapped: The standard 1.45% Medicare tax applies to 100% of your earnings, regardless of how much you make.
Note on High Earners: An Additional Medicare Tax of 0.9% applies to individual earnings over $200,000 ($250,000 for Married Filing Jointly). This extra portion is paid solely by the employee and is not matched by the employer.
| Tax Filing Status | Income Threshold | Total Employee Medicare Rate |
|---|---|---|
| Single / Head of Household | Over $200,000 | 2.35% (1.45% + 0.9% Additional) |
| Married Filing Jointly | Over $250,000 | 2.35% (1.45% + 0.9% Additional) |
| Married Filing Separately | Over $125,000 | 2.35% (1.45% + 0.9% Additional) |
If you are self-employed (a freelancer, independent contractor, or small business owner), you are responsible for paying both the employee and employer portions of FICA under the Self-Employment Contributions Act (SECA).
Total Self-Employment Tax Rate: 15.3% (12.4% Social Security + 2.9% Medicare).
Tax Deduction Benefit: The IRS allows self-employed individuals to deduct 50% of their self-employment tax (the employer portion) from their gross income when calculating federal income tax.
While FICA tax is mandatory for most workers, specific exemptions apply under federal law:
Student Workers: College students working part-time jobs on-campus at the university where they are enrolled in classes.
Non-Resident Foreign Student & Scholar Visas: Individuals holding F-1, J-1, M-1, or Q-1 visas performing qualifying work.
Religious Exemptions: Members of certain recognized religious sects who conscientiously object to public insurance benefits (via approved IRS Form 4029).
| Feature | FICA Tax | Federal Income Tax |
|---|---|---|
| Primary Purpose | Funds Social Security & Medicare trust funds | Funds general federal government operations |
| Tax Rate Structure | Flat Rate (7.65% standard employee rate) | Progressive Tax Brackets (10% to 37%) |
| Employer Match | Yes (Employer matches 7.65%) | No (Paid solely by employee) |
| Wage Base Cap | Social Security capped at $184,500 | No earning limits or caps |
| Withholding Control | Mandatory flat rate (cannot adjust via W-4) | Adjustable via Form W-4 withholding selections |
No. FICA tax is mandatory for almost all U.S. employees and employers. Unless you qualify for specific statutory exemptions (such as certain student workers or foreign visa holders), you cannot opt out.
If you worked for two or more employers in a single year and your combined earnings exceeded $176,100, both employers may have withheld Social Security tax. You can claim a credit for the excess Social Security tax withheld when filing your annual federal tax return (Form 1040).
If your cumulative earnings for the calendar year reached $176,100, your payroll system automatically halts the 6.2% Social Security deduction for the remainder of that year. It resets back to 6.2% on January 1.
Yes. Reported cash tips, annual bonuses, and commission payments are subject to standard FICA tax withholding.
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