For 2026, Social Security tax is 6.2% on wages up to $184,500 — the wage base set by the Social Security Administration. An employee who earns at or above $184,500 pays a maximum of $11,439 in Social Security tax for the year (SSA COLA Fact Sheet 2026). Self-employed workers pay the full 12.4% on 92.35% of net earnings, but deduct half from income. The $184,500 wage base is up from $176,100 in 2025 — a larger-than-usual jump driven by the 2.8% cost-of-living adjustment (SSA Contribution and Benefit Base).
Use the paycheck calculator to see Social Security withheld for your specific pay and frequency.
How the 6.2% Rate Works
Social Security tax is 6.2% of every dollar of covered wages up to the annual wage base. Once your cumulative wages for the year pass $184,500, withholding stops. Medicare does not have a cap and continues on all wages.
Example — employee earning $80,000:
| Component | Calculation | Amount |
|---|---|---|
| Gross wages | — | $80,000 |
| Wage base cap | $184,500 (not reached) | $80,000 taxable |
| Social Security tax | $80,000 × 6.2% | $4,960 |
| Medicare tax | $80,000 × 1.45% | $1,160 |
| Total FICA | — | $6,120 |
Your employer sends an additional 6.2% (Social Security) and 1.45% (Medicare) on your behalf, for a combined FICA rate of 15.3% on your wages. That employer share does not appear on your pay stub.
Social Security Tax at Different Wage Levels
| Annual Wages | SS Taxable Wages | SS Tax (6.2%) | Reaches Cap? |
|---|---|---|---|
| $30,000 | $30,000 | $1,860 | No |
| $60,000 | $60,000 | $3,720 | No |
| $100,000 | $100,000 | $6,200 | No |
| $184,500 | $184,500 | $11,439 | Yes — max |
| $200,000 | $184,500 | $11,439 | Yes — capped |
| $300,000 | $184,500 | $11,439 | Yes — capped |
The cap means high earners pay a smaller percentage of total wages in Social Security tax than lower earners do. At $60,000 the effective Social Security rate is 6.2%; at $200,000 it is 5.7%.
Worked Example: Reaching the Wage Base Mid-Year
Alex earns $220,000 per year on a biweekly schedule ($8,461.54 per period). Each paycheck carries 6.2% Social Security tax on the full check — until cumulative wages hit $184,500.
- Periods until cap: $184,500 ÷ $8,461.54 = approximately 21.8 paychecks, so the cap is reached partway through period 22 (around mid-September for a January start).
- Total Social Security tax for the year: $184,500 × 6.2% = $11,439
- FICA after the cap: Only Medicare (1.45%) continues for the remaining paychecks. No Additional Medicare Tax applies below $200,000 for a single filer.
Self-Employed Workers
Self-employed workers pay both the employee (6.2%) and employer (6.2%) shares, for a combined 12.4% Social Security rate. The tax applies to 92.35% of net self-employment earnings — the 7.65% reduction approximates the employer-half deduction an employee’s employer implicitly absorbs (IRC §1402(a)(12)).
Example — freelancer with $80,000 net profit:
| Step | Calculation | Amount |
|---|---|---|
| Net profit | — | $80,000 |
| Net earnings (×0.9235) | $80,000 × 0.9235 | $73,880 |
| SS tax (12.4%, under $184,500) | $73,880 × 12.4% | $9,161 |
| Medicare tax (2.9%) | $73,880 × 2.9% | $2,142 |
| Total SE tax | — | $11,304 |
| Deductible half | $11,304 ÷ 2 | $5,652 |
The deductible half ($5,652) is subtracted from gross income before calculating federal income tax, partially offsetting the higher SE tax burden. See self-employment tax explained for the full calculation.
The $184,500 Wage Base: What Changes Each Year
The SSA adjusts the wage base each year using a formula tied to the national average wage index. For 2026 the adjustment was 4.8% (not the 2.8% COLA — the wage base uses a separate index). The base has increased in most years since 1975. It is not possible to predict future years with certainty; check the SSA site each fall for the following year’s limit.
| Year | SS Wage Base |
|---|---|
| 2025 | $176,100 |
| 2026 | $184,500 |
Multiple Employers and the Wage Base
If you have two or more W-2 jobs and your combined wages exceed $184,500, each employer withholds independently without knowing about the other. You may end up with more than $11,439 withheld total. At filing, the excess is credited against your income tax on Form 1040 (Schedule 3, line 11). You cannot ask your employer to stop withholding early based on another job’s wages.
How Social Security Tax Appears on Your Pay Stub
Your pay stub typically labels this as “Social Security,” “OASDI,” or “SS tax.” It shows the employee portion only. The employer match does not appear. Together, OASDI (Social Security) and HI (Medicare) make up FICA.
Use the paycheck calculator to estimate your biweekly Social Security tax based on your gross pay. For the Medicare side of FICA, see Medicare tax and the Additional Medicare Tax. For a full picture of both taxes together, see FICA tax explained.