OASDI stops coming out of your paycheck the moment your year-to-date wages from an employer reach the Social Security wage base, which is $184,500 for 2026.1Social Security Administration. Contribution and Benefit Base After that point, neither you nor your employer owes another cent of the 6.2% Social Security tax for the rest of the calendar year. The cap resets every January 1, so the withholding cycle starts over no matter when you crossed the line the year before.
The 2026 Cap and the Maximum You’ll Pay
Every dollar you earn up to $184,500 in 2026 is subject to the 6.2% OASDI tax, and your employer pays a matching 6.2% on the same earnings.2Office of the Law Revision Counsel. 26 USC 3101 – Rate of Tax If you earn at least that much during the year, your total contribution tops out at $11,439, and your employer contributes the same amount.3Social Security Administration. 2026 Cost-of-Living Adjustment (COLA) Fact Sheet Anything you earn beyond the ceiling is free from Social Security tax entirely.
The cap has climbed steadily, largely because wage growth after 2020 pushed the National Average Wage Index higher:1Social Security Administration. Contribution and Benefit Base
- 2020: $137,700
- 2021: $142,800
- 2022: $147,000
- 2023: $160,200
- 2024: $168,600
- 2025: $176,100
- 2026: $184,500
That’s an increase of $46,800 over six years. If you used to hit the cap comfortably in early fall, you may be paying OASDI deeper into the year than you used to.
When the Withholding Actually Stops
Your payroll department tracks your cumulative earnings and shuts off the 6.2% withholding the moment you cross $184,500. The employer’s matching 6.2% stops at the same time.4Office of the Law Revision Counsel. 26 USC 3111 – Rate of Tax For someone earning $200,000 a year paid biweekly, OASDI drops off the paycheck around late October or early November, and the remaining paychecks of the year run visibly larger.
The same logic covers bonuses. If your regular wages have already pushed you past the cap, a December bonus arrives with no Social Security tax withheld. If your regular wages are just below the limit, only the portion of the bonus that lifts you to $184,500 is taxed; the rest is exempt.
What Counts Toward the Cap
The tax applies to nearly all direct compensation. Under 26 U.S.C. ยง 3121, “wages” for FICA purposes means all remuneration for employment, including pay in forms other than cash.5Office of the Law Revision Counsel. 26 USC 3121 – Definitions Regular salary, hourly pay, overtime, bonuses, and commissions all count.
One point catches people off guard: pre-tax 401(k) contributions still count toward the cap. Elective deferrals reduce your federal income tax but remain subject to Social Security and Medicare withholding.6Internal Revenue Service. Are Retirement Plan Contributions Subject to Withholding for FICA, Medicare, or Federal Income Tax Maxing out your 401(k) won’t delay the paycheck where OASDI drops off.
Benefits paid through a qualifying cafeteria plan under Section 125, such as employer-sponsored health insurance premiums, are generally exempt from FICA and don’t count. Two carve-outs: group-term life insurance coverage above $50,000 remains subject to Social Security tax, and adoption assistance benefits stay subject to FICA even when offered through a cafeteria plan.7Internal Revenue Service. FAQs for Government Entities Regarding Cafeteria Plans
Two Jobs? You Can Easily Overpay
Each employer tracks your earnings independently. If you work two jobs, each one withholds OASDI on the first $184,500 you earn from that employer, with no awareness of what the other is taking. Overpayment is easy.
Say Job A pays $120,000 and Job B pays $100,000. Job A withholds $7,440, Job B withholds $6,200, and you’ve handed over $13,640 in Social Security tax against a legal maximum of $11,439. You’ve overpaid by $2,201.
You get it back on your tax return. Claim the excess Social Security withholding as a credit on Schedule 3, Line 11, which flows through to your Form 1040 and either reduces your tax bill or increases your refund.8Internal Revenue Service. Topic No. 608 – Excess Social Security and RRTA Tax Withheld One important boundary: if a single employer withholds too much on its own, you can’t claim the credit that way. You have to go back to that employer for a correction, or file Form 843 if they won’t fix it.
Self-Employment: Same Cap, Double the Rate
Self-employed workers face the same $184,500 ceiling but pay both halves of the tax, for a rate of 12.4% on net self-employment earnings up to the cap.9Office of the Law Revision Counsel. 26 USC Ch. 2 – Tax on Self-Employment Income If you also hold a W-2 job, your employee wages reduce the self-employment earnings subject to the tax, so you never pay OASDI on more than $184,500 combined.
Two provisions soften the hit. Before calculating self-employment tax, you multiply net earnings by 92.35%, which mirrors the treatment W-2 employees get when their employer’s share isn’t counted as taxable income to them.10Office of the Law Revision Counsel. 26 USC 1402 – Definitions Then you deduct half of the self-employment tax you actually pay as an above-the-line deduction, reducing your adjusted gross income.11Office of the Law Revision Counsel. 26 USC 164 – Taxes Missing that deduction is a common oversight on self-prepared returns.
Medicare Doesn’t Max Out
The 6.2% OASDI tax stops at $184,500. The 1.45% Medicare Hospital Insurance tax has no wage base limit at all. You pay Medicare tax on every dollar of wages, however high your income goes.12Social Security Administration. What Is the Current Maximum Amount of Taxable Earnings for Social Security Your employer also pays 1.45% on your full earnings with no cap.4Office of the Law Revision Counsel. 26 USC 3111 – Rate of Tax
Higher earners pay more. Once your wages exceed $200,000 in a calendar year ($250,000 for married filing jointly), an extra 0.9% Additional Medicare Tax applies on the overage.13Internal Revenue Service. Questions and Answers for the Additional Medicare Tax That surtax falls entirely on the employee; your employer doesn’t match it. So a high-earning W-2 worker pays a combined 2.35% Medicare rate on income above the thresholds, with no ceiling.
Checking Your W-2
When your W-2 arrives, Box 3 (Social Security wages) and Box 5 (Medicare wages and tips) will show different amounts if you earned above the cap. Box 3 cannot exceed $184,500 for 2026, because that’s the OASDI wage base. Box 5 reflects your full Medicare-taxable earnings with no ceiling.14Internal Revenue Service. General Instructions for Forms W-2 and W-3 (2026) If you earned $199,750 for the year, Box 3 should read $184,500 and Box 5 should read $199,750.
Box 4 (Social Security tax withheld) should be exactly 6.2% of whatever’s in Box 3, capped at $11,439 for 2026. If Box 4 shows more than that from a single employer, payroll made a mistake. Ask for a corrected W-2 before you file.