You do not pay FICA tax on pension income. A traditional pension check from a qualified defined benefit plan is not subject to Social Security or Medicare tax, because federal law defines FICA as a tax on wages from current employment, not on distributions from retirement plans. Your pension is still taxable as ordinary federal income, and often at the state level too, but the 7.65% payroll deduction that came off every paycheck during your career no longer applies once you retire.
Why Pensions Sit Outside the Payroll Tax System
FICA funds Social Security and Medicare through a tax on “wages,” meaning remuneration paid for employment.1Internal Revenue Service. Topic No. 751, Social Security and Medicare Withholding Rates A pension payment is not remuneration for services you are performing now. It is a distribution of benefits you earned years ago.
The tax code makes that distinction explicit. IRC Section 3121(a)(5) removes payments from qualified retirement trusts under Section 401(a), annuity plans under Sections 403(a) and 403(b), SEPs, and governmental 457(b) plans from the definition of wages.2Office of the Law Revision Counsel. 26 USC 3121 – Definitions If a payment is not wages, FICA cannot attach to it. That statutory exclusion is why no Social Security or Medicare tax ever appears on a pension check.
How You Can Tell From the Paperwork
The forms themselves confirm the treatment. Employers report wages on Form W-2, which has dedicated boxes for Social Security wages, Social Security tax withheld, Medicare wages, and Medicare tax withheld. Pension administrators use Form 1099-R instead.3Internal Revenue Service. About Form 1099-R, Distributions From Pensions, Annuities, Retirement or Profit-Sharing Plans, IRAs, Insurance Contracts, Etc. Form 1099-R includes a box for federal income tax withheld, but it has no boxes for FICA at all.4Internal Revenue Service. Form 1099-R Distributions From Pensions, Annuities, Retirement or Profit-Sharing Plans, IRAs, Insurance Contracts, Etc. If you are receiving a 1099-R for your pension, that income is outside the FICA system by design.
You still report the pension as gross income on your Form 1040, and the administrator will normally withhold federal income tax unless you elect otherwise.5Internal Revenue Service. Instructions for Forms 1040 and 1040-SR Income tax and payroll tax are separate systems. Pensions run through the first one; they never touch the second.
The Government Already Collected FICA on the Money
The exemption is not a giveaway. FICA on retirement money is collected at the front end, when the wages that fund the plan are earned. Salary deferrals into a 401(k) or 403(b) are excluded from federal income tax at the time you make them, but they are still subject to Social Security and Medicare tax before they enter the plan.6Internal Revenue Service. Are Retirement Plan Contributions Subject to Withholding for FICA, Medicare, or Federal Income Tax
Defined benefit pensions work on the same logic. The wages that funded the accrued benefit had FICA withheld when you earned them. Charging payroll tax again on the way out would tax the same dollars twice. Investment growth inside the plan was never wages to begin with, so it was never within reach of FICA.
How Other Retirement Income Is Treated
The Section 3121(a)(5) exclusion covers most of the retirement vehicles you are likely to draw from, not just traditional pensions.
- 401(k) and 403(b) distributions are reported on Form 1099-R and are subject to federal income tax but not FICA, whether taken as a lump sum or in periodic payments.
- Traditional IRA distributions get the same treatment: income tax yes, FICA no.
- Qualified Roth IRA and Roth 401(k) withdrawals are exempt from both income tax and FICA, since the contributions were after-tax dollars that already carried payroll tax when earned.
- Social Security benefits are not subject to FICA. Depending on your combined income, up to 85% of benefits can be subject to federal income tax.7Social Security Administration. Must I Pay Taxes on Social Security Benefits?
Retirement-Adjacent Payments That Do Trigger FICA
A few types of payments arrive around retirement age but are still treated as wages, so FICA applies.
Nonqualified Deferred Compensation
Nonqualified deferred compensation (NQDC) plans sit outside the qualified plan rules, so the Section 3121(a)(5) exclusion does not reach them. FICA on NQDC is assessed at the later of when you perform the services or when the deferred amount is no longer at risk of forfeiture.8eCFR. 26 CFR 31.3121(v)(2)-1 – Treatment of Amounts Deferred Under Certain Nonqualified Deferred Compensation Plans In practice, that usually means the payroll tax is settled while you are still working, well before the payout arrives.
Severance Pay
Severance payments count as wages for FICA purposes, even when paid in installments after your last day. The U.S. Supreme Court confirmed that treatment in 2014, holding that severance is remuneration for employment and subject to full FICA withholding. Standard lump-sum or installment severance does not qualify for the narrow exceptions that exist.
Disability Payments Before Retirement Age
Employer-sponsored disability payments received before you reach the plan’s minimum retirement age can be subject to FICA. The IRS views them as wage continuation rather than retirement benefits. Once you reach the plan’s normal retirement age, the payments are reclassified as retirement income and the FICA obligation ends.5Internal Revenue Service. Instructions for Forms 1040 and 1040-SR
Going Back to Work After You Retire
If you take a job after starting your pension, the paycheck from the new job is subject to FICA like any other wages. Your pension stays FICA-exempt. The two income streams are handled independently, with the pension reported on Form 1099-R and the new wages on Form W-2. Rehired annuitants at a government employer follow different rules depending on whether the position is covered by a Section 218 agreement, though Medicare coverage generally applies to anyone hired after March 31, 1986.9Internal Revenue Service. Rehired Annuitants
If FICA Was Withheld From Your Pension by Mistake
Mistakes do happen. If a plan administrator or payer withholds Social Security or Medicare tax from a pension distribution, ask them to correct it and refund the amount. If they will not or cannot, you can file Form 843, Claim for Refund and Request for Abatement, directly with the IRS.10Internal Revenue Service. Instructions for Form 843 – Claim for Refund and Request for Abatement Attach the form that shows the erroneous withholding, along with any statement from the payer about what has already been refunded. On Line 8, explain that the FICA was withheld on a retirement plan distribution excluded from wages under IRC Section 3121(a)(5). Supported by your 1099-R, this is a routine claim.