FICA taxes on retirement income depend on what kind of income it is

You do not pay FICA taxes on most retirement income. Social Security benefits, pension payments, and withdrawals from retirement accounts like IRAs and 401(k)s are not subject to the 6.2% Social Security tax or the 1.45% Medicare tax that FICA requires. However, if you work while receiving retirement income, you pay FICA on the wages from that work — and if you are under full retirement age and earning above a certain threshold, Social Security itself will reduce your benefits.

The one exception is self-employment income. If you are retired but still earn money from a business or freelance work, you owe self-employment tax (the self-employed version of FICA) on that net income, regardless of your age or retirement status.

Key Takeaways

  • Social Security benefits, pensions, and retirement account withdrawals do not trigger FICA taxes on the income itself.
  • If you work for an employer while retired, you pay FICA on those wages just as any employee does.
  • Self-employment income is subject to self-employment tax even after you start receiving retirement benefits.
  • Earning above the Social Security earnings limit before full retirement age reduces your benefits, though this is not a tax — it is a benefit reduction.

Social Security benefits and FICA

Social Security retirement benefits themselves are never subject to FICA taxes. You already paid FICA taxes on the wages that funded your Social Security account during your working years. Once you begin collecting, those monthly payments are not earned income and do not trigger additional FICA obligations.

What can happen is that part of your Social Security benefit may be taxable as income for federal income tax purposes — a different tax from FICA. Between 0% and 85% of your benefits may be subject to federal income tax depending on your total income and filing status. This is income tax, not FICA tax, and it is withheld or owed separately.

Pensions and retirement account withdrawals

Pension payments from a former employer are not subject to FICA taxes. You do not owe Social Security tax or Medicare tax on a monthly pension check. The same applies to withdrawals from traditional IRAs, Roth IRAs, 401(k)s, and other may have access to retirement plans — the distributions themselves are not subject to FICA.

These withdrawals may be subject to federal income tax (depending on the account type and your tax bracket), and you may owe state income tax as well. But FICA — the 6.2% Social Security portion and the 1.45% Medicare portion — does not apply to retirement account distributions.

Working while retired and FICA obligations

If you take a job or return to work after retiring, you pay FICA on your wages from that employment. Your employer withholds 6.2% for Social Security and 1.45% for Medicare from your paycheck, and your employer contributes a matching amount. This is true regardless of your age or whether you are already receiving Social Security or pension income.

There is no age limit on FICA withholding for wages. Even if you are 75 years old and collecting Social Security, if you work as an employee, FICA comes out of your paycheck. The only exception is that once you reach full retirement age (66 to 67 depending on your birth year), there is no longer an earnings limit that reduces your Social Security benefits — you can earn as much as you want without losing benefits.

Self-employment income after retirement

If you are retired but earn income from self-employment — running a business, freelancing, consulting, or any work where you are not an employee — you owe self-employment tax on your net profit. Self-employment tax is 15.3% total: 12.4% for Social Security and 2.9% for Medicare (or 3.8% on high earners for an additional Medicare tax). This is the self-employed version of FICA.

You calculate self-employment tax on Schedule SE and pay it when you file your tax return, or in quarterly estimated tax payments if your self-employment income is substantial. The fact that you are retired and receiving other income does not exempt you from self-employment tax on business earnings.

The earnings limit before full retirement age

If you claim Social Security before reaching your full retirement age and you work, Social Security reduces your benefits if your earnings exceed a certain threshold. For 2024, that limit is $23,400 per year (the amount changes annually). For every $2 you earn above that limit, Social Security withholds $1 in benefits.

This is not a tax — it is a benefit reduction. You do not owe FICA on the income that triggers this reduction. However, it is a real financial consequence of working while claiming early benefits. Once you reach full retirement age, the earnings limit disappears and you can work without any reduction to your benefits.

Medicare and retirement income

You do not pay the Medicare portion of FICA (1.45%) on retirement income itself. However, if your income is high enough, you may owe an additional Medicare tax of 0.9% on wages and self-employment income above certain thresholds ($200,000 for single filers, $250,000 for married filing jointly). This additional tax applies to high earners regardless of age or retirement status.

This additional Medicare tax is separate from regular FICA withholding and is calculated on your tax return. It does not apply to Social Security benefits, pensions, or retirement account withdrawals — only to wages and self-employment income.

Frequently Asked Questions

Do I pay FICA on my 401(k) withdrawal?

No, the withdrawal itself is not subject to FICA taxes. You may owe federal income tax on the amount withdrawn (depending on whether it is a traditional or Roth account), but not Social Security or Medicare tax. If you are under 59½ and withdraw from a traditional 401(k), you may also owe a 10% early withdrawal penalty on top of income tax.

What if I work part-time after I start collecting Social Security?

You pay FICA on your part-time wages. Your employer withholds 6.2% for Social Security and 1.45% for Medicare. If you are under full retirement age, your earnings may also reduce your Social Security benefits if you exceed the annual earnings limit.

Do I owe self-employment tax on rental income from a property I own?

Typically no. Passive rental income is not subject to self-employment tax. However, if you actively manage the property or operate it as a business (such as short-term rentals), the IRS may classify it as self-employment income, which would be subject to self-employment tax.

Can I reduce my FICA taxes by claiming retirement income on a different tax form?

No. FICA is determined by the type of income, not by how you report it. Social Security benefits, pensions, and retirement withdrawals are not subject to FICA regardless of which tax form you use. Only wages and self-employment income trigger FICA obligations.