Social Security tax on a pay stub is usually 6.2% of wages subject to that tax, until the applicable annual wage limit is reached. A smaller deduction late in the year can therefore be correct. A new job can also restart withholding even when your combined earnings have already passed the limit.
This guide covers U.S. employee payroll for calendar year 2026. It shows how to check an ordinary deduction, split a payment at the wage cap, reconcile year-to-date figures, and distinguish a payroll error from excess withholding across different employers. Examples assume ordinary covered employment, with no railroad retirement tax, special employer aggregation, tips, or payroll corrections unless stated otherwise.
Identify the deduction before checking the percentage
Social Security finances Old-Age, Survivors, and Disability Insurance, abbreviated OASDI. A statement may label this deduction “Social Security,” “SS,” “OASDI,” or “FICA-SS.” If it shows only “FICA,” ask whether that line combines Social Security and Medicare. These are separate components of FICA with different wage limits. The IRS withholding-rate guidance identifies an employee Social Security rate of 6.2% and a separate regular Medicare rate of 1.45%.
The SSA contribution and benefit base is $184,500 for 2026. Multiplying that base by 6.2% gives a maximum ordinary employee Social Security tax of $11,439.00. The employer also pays its own 6.2% share. That employer expense is not an additional employee deduction.
| Item | 2026 figure |
|---|---|
| Employee withholding rate | 6.2% |
| Separate employer rate | 6.2% |
| Annual wages subject to Social Security | Up to $184,500.00 |
| Maximum employee Social Security tax | $11,439.00 |
The cap is annual, not monthly or per paycheck. It resets with a new calendar year; the next year may have a different base. A worker who stopped paying this tax after reaching the cap in 2025 can start paying it again on 2026 wages. Do not use the previous year’s maximum to check this year’s statement.
Start with Social Security wages, rather than take-home pay
Locate the current-period Social Security taxable wages and the corresponding year-to-date wage and tax amounts. Net pay has already been reduced by deductions and is unsuitable as the starting point. Federal income-tax wages can also differ from Social Security wages. Our gross-pay and taxable-wage guide explains why a statement can carry several valid wage bases.
For a payment fully below the annual cap, the basic check is:
Current Social Security wages × 0.062 = employee Social Security deduction.
Consider $2,850.00 of otherwise covered wages with a $190.00 employee traditional 401(k) salary deferral and no other adjustments. The IRS retirement-contribution guidance treats that deferral as subject to Social Security and Medicare. Thus the employee Social Security calculation remains $2,850.00 × 6.2% = $176.70. Subtracting the deferral first would produce $164.92, a difference of $11.78. This example is below the cap and is not a complete federal income-tax or net-pay calculation.
Other benefits require different treatment. Some qualified cafeteria-plan benefits are excluded from Social Security wages; taxable fringe benefits can increase them. Check the benefit-specific rules in IRS Publication 15-B for 2026, rather than assuming that every “pre-tax” line has the same effect. For noncash additions, see our imputed-income explanation.
Ordinary wages can include bonuses and commissions as well as regular salary; the employment-tax wage rules are in 2026 IRS Publication 15. A bonus can use up the remaining annual Social Security base even when it is paid separately.
An overtime deduction does not remove Social Security withholding
The federal deduction for qualified overtime compensation concerns income tax. It does not make overtime wages exempt from Social Security employment tax. The IRS clarified this in its August 2026 overtime FAQs, FS-2026-13. Keep overtime compensation in the applicable Social Security wage calculation unless a separate employment-tax exclusion applies, and still apply the annual cap.
A $6,000 payment that crosses the 2026 wage cap
Suppose one employer has paid an employee $180,000.00 in covered wages during 2026. The next payment contains $6,000.00 of otherwise covered wages. There are no excluded benefits, tips, special aggregation rules, or prior adjustments.
- Find the remaining base: $184,500.00 − $180,000.00 = $4,500.00.
- Compare the new payment with that remaining base. Only $4,500.00 of the $6,000.00 is Social Security taxable.
- Calculate the employee deduction: $4,500.00 × 6.2% = $279.00.
- The other $1,500.00 is above the cap and produces no further Social Security tax from this employer for that year.
| Payroll measure | Before payment | This payment adds | After payment |
|---|---|---|---|
| Covered compensation before applying the cap | $180,000.00 | $6,000.00 | $186,000.00 |
| Social Security taxable wages | $180,000.00 | $4,500.00 | $184,500.00 |
| Employee Social Security tax | $11,160.00 | $279.00 | $11,439.00 |
A capped Social Security wage total of $184,500.00 and an uncapped covered-compensation total of $186,000.00 are both correct in this example. Inspect what each year-to-date label actually represents. Do not replace the capped taxable total with gross earnings just to make the numbers match.
For an ordinary payment with no corrections, a reusable calculation is: taxable portion = the smaller of current otherwise covered wages and the remaining annual base, with the remaining base never below zero. Multiply that portion by 6.2%. This is a review formula; payroll reversals, benefit adjustments, or special employer arrangements need their own reconciliation.
What happens on the following paycheck?
If the same employer next pays another $6,000.00 in otherwise covered wages, the ordinary Social Security deduction is $0.00: the annual base has been exhausted. That does not make the check free of all payroll taxes.
Medicare has no corresponding wage cap. Assuming all $6,000.00 is Medicare wages, regular employee Medicare tax remains $87.00 per payment. At $192,000.00 cumulative Medicare wages after the second payment in this example, the employer’s $200,000 Additional Medicare withholding threshold has not yet been crossed. Our Medicare-tax guide covers that separate threshold and the tax-return reconciliation.
A cap-crossing paycheck may increase take-home pay compared with an otherwise identical check below the cap. But the exact change also depends on every other withholding and deduction. Do not infer a net-pay amount from the Social Security line alone.
A job change can start withholding again
The 2026 IRS Publication 505 explains that each employer generally withholds Social Security up to the annual limit. Two unrelated employers normally track their own wages. Your combined annual income passing $184,500 does not, by itself, authorize the second employer to stop withholding.
For example, one person earns $120,000.00 from Employer A and $100,000.00 from unrelated Employer B in 2026. Both jobs are ordinary covered employment. Neither employer has individually paid more than the wage base, and neither has made a withholding error.
| Employer | Covered wages | Employee SS withheld |
|---|---|---|
| Employer A | $120,000.00 | $7,440.00 |
| Employer B | $100,000.00 | $6,200.00 |
| Combined for this employee | $220,000.00 | $13,640.00 |
Total employee withholding is $13,640.00. Compared with the 2026 employee maximum of $11,439.00, the excess is $2,201.00. The same principle can apply to consecutive jobs or simultaneous jobs; the decisive issue is how the employers were required to apply the wage base.
Employer identity and special arrangements matter
A new payroll portal, changed company name, or second W-2 does not alone establish that the wage base should restart. Publication 15 describes qualifying successor-employer transactions in which predecessor wages count toward the successor’s limit. Common-paymaster and certain third-party arrangements have additional rules described in 2026 Publication 15-A. Ask payroll which legal employers and wage-base rules apply, especially after an acquisition or transfer. The two-job example above excludes those arrangements.
Choose the correct way to resolve an excess
One employer withheld more than it should
If a single employer overcollects Social Security tax, ask that employer to correct it. The IRS excess-withholding guidance distinguishes this error from a multiple-employer excess: an overcollection by one employer cannot simply be claimed as an excess Social Security credit against income tax.
For instance, if one employer withholds $11,600.00 on ordinary 2026 wages after reaching the cap, the potential overcollection is $161.00. Give payroll the statements showing the issue and request an explanation of any corrections or special treatment before concluding that amount is wrong.
If the employer will not adjust the overcollection, the IRS provides an employee refund-claim route using Form 843. The Form 843 instructions, currently revised December 2024, explain the supporting W-2 and employer statement requirements. If the employer statement cannot be obtained, the instructions describe the employee statement to supply instead. Keep records of any repayment already received to avoid claiming the same tax twice. Use the applicable current instructions for the claim.
Multiple employers each withheld correctly
Where an excess results from proper withholding by two or more employers, IRS Topic 608 allows a potential credit on the employee’s income-tax return. Follow the instructions for the year being filed. The $2,201.00 calculation above uses 2026 figures; do not substitute a prior-year return’s maximum.
On a joint return, spouses calculate excess Social Security separately. Adding two spouses’ withholding and subtracting one person’s $11,439.00 maximum would create an incorrect result. Use each individual’s employer records, and exclude amounts being corrected or refunded by an employer. A credit is reconciled within the complete return; the example does not promise a separate $2,201.00 cash refund.
Tie the final payroll totals to the W-2
The 2026 W-2 instructions distinguish Box 3 Social Security wages, Box 7 reported Social Security tips, and Box 4 employee Social Security tax withheld. Boxes 3 and 7 together cannot exceed $184,500 for the ordinary 2026 wage-base calculation. Box 4 reports the employee tax, not the employer share; its ordinary maximum is $11,439.00.
In the no-tips, one-employer cap example, Box 3 reaches $184,500.00. Box 4 should reconcile to $11,439.00, allowing for any documented corrections. Medicare wages in Box 5 can continue above the Social Security cap. Do not expect federal income-tax wages in Box 1 to equal all these fields.
For an ordinary record without uncollected tax or adjustments, multiplying Social Security wages, including reported Social Security tips, by 6.2% is a useful annual cross-check. It is not universal: the W-2 instructions identify uncollected tip tax reported in Box 12 with code A. A cents difference can also reflect rounding across payments. Compare the payroll detail before assuming a mismatch is an error; our rounding guide explains that review.
Keep each employer’s W-2 separate before doing the individual multiple-employer excess calculation. For broader annual differences and corrections, use the final pay-stub and W-2 reconciliation guide.
Questions that commonly cause confusion
Can I stop Social Security tax by changing my W-4?
No. Form W-4 controls federal income-tax withholding. Even a valid federal income-tax withholding exemption does not itself exempt otherwise covered wages from Social Security tax. This distinction is explained in Publication 15.
Does retirement age end this deduction?
No. The SSA guidance on working after full retirement age says covered workers remain subject to Social Security tax regardless of age or eligibility for benefits. Payroll tax on wages is a different question from income tax on retirement benefits.
Is a missing Social Security line always an error?
No. Reaching the annual cap is one explanation. Some government employment is not covered, and other specific exemptions exist. IRS Topic 608 notes the government-employer exception, while Publication 15-A covers additional special categories. Confirm coverage with payroll before treating an absent line as either a mistake or an exemption.
What if I also earn self-employment income?
This employee-paycheck formula is not a complete self-employment tax calculation. Wages and net self-employment earnings interact with the annual Social Security limit. Use the Schedule SE instructions for the year being filed; do not apply a second full wage base or simply double the employee deduction. The latest posted instructions reviewed here are for 2025, so their dollar limit must not be used for 2026.
A payroll inquiry that contains the right evidence
Before asking for a correction, collect the affected statement, the preceding statement, any separate bonus statement, and the relevant year-to-date totals. A useful inquiry identifies:
- The year and employer: which calendar year and legal employer the payment belongs to.
- The current wage base: gross compensation, exclusions or additions, and the amount payroll treated as Social Security taxable.
- The prior YTD base: how much of the annual limit was used before this check.
- The calculation: the remaining base, the taxable portion, and the 6.2% employee result.
- The difference: what was actually withheld and whether the statement includes a refund, reversal, or other adjustment.
- The requested explanation: confirmation of wage-base treatment, followed by any necessary payroll or W-2 correction.
For the $6,000 cap-crossing example, a precise question is: “My prior 2026 covered wages were $180,000.00. I calculate $4,500.00 of this payment as Social Security taxable and $279.00 of employee tax. Which wage-base amount or adjustment explains the deduction shown?” That gives payroll an amount and a period to reconcile.
If preparing a pay statement, transfer verified payroll wages and deductions into the record. Check the tax year and employer’s YTD history first; a generated statement should document the calculation supported by those records.
Rules and linked official guidance reviewed September 29, 2026. Fictional examples illustrate U.S. payroll deductions, rather than a complete personal tax return.