Do You Still Owe FICA on Retirement Income?

Is Retirement Income Subject to FICA Taxes?

For most FATFIRE retirees drawing from a $5M+ portfolio, FICA taxes are largely a non-issue. Social Security benefits, pension payments, IRA distributions, and annuity income are all explicitly excluded from FICA withholding under IRS Publication 15. The taxes that actually threaten high-income retirees are the Net Investment Income Tax (NIIT) and Medicare IRMAA surcharges, which together can cost a wealthy couple well over $19,000 per year.

That said, FICA and its self-employment equivalent do not disappear entirely if you retain active business interests after leaving formal employment. Understanding where the real exposure sits, and how to reduce it, is the actual planning problem worth solving.

What Types of Retirement Income Are Exempt from FICA?

The IRS is unambiguous on this. According to IRS Publication 15, pension distributions, IRA withdrawals, and annuity payments are explicitly excluded from Social Security and Medicare tax withholding requirements. The same applies to 401(k) and 403(b) distributions.

Social Security benefits themselves are not subject to FICA. The government does not re-apply payroll taxes to benefits funded by payroll taxes.

The table below summarizes FICA treatment across the income sources most common in a high-net-worth retirement portfolio.

The practical takeaway: if your retirement income comes entirely from investment accounts, pensions, and Social Security, FICA is not your problem. The 3.8% NIIT and Medicare premium surcharges are.

Does Self-Employment Income in Retirement Trigger FICA or Self-Employment Tax?

This is where FICA becomes genuinely relevant for the FATFIRE demographic. Many people at this level do not simply stop working. They retain board seats, consulting arrangements, general partnership interests, or active roles in pass-through entities. The IRS has specific rules for each.

According to IRS Schedule SE guidance, retirees who continue to receive self-employment income, including from active participation in partnerships, S-corporations with reasonable compensation requirements, or consulting arrangements, remain subject to self-employment tax at a combined rate of 15.3% up to the Social Security wage base ($168,600 in 2024, per the Social Security Administration) and 2.9% above that threshold.

The IRS has increased scrutiny of S-corporation owner-employees who suppress reasonable compensation to avoid payroll taxes. If you own an S-corp and take distributions while performing services, the IRS expects a portion of those distributions to be reclassified as wages subject to FICA. The standard is "reasonable compensation" for the services performed, and courts have consistently upheld IRS reclassifications when compensation is clearly suppressed.

IRC Section 1402 carves out some relief. Limited partner distributions and certain passive S-corporation income are excluded from self-employment tax. But the passive versus active distinction requires careful documentation, particularly if you have material participation in the entity.

If you have any of these structures in place, your tax attorney should be reviewing reasonable compensation levels annually, not just at formation.

How Does Net Investment Income Tax Differ from FICA for High-Net-Worth Retirees?

FICA funds Social Security and Medicare. NIIT is a separate 3.8% surcharge that funds the Affordable Care Act. They are distinct taxes with different bases, different thresholds, and different planning levers.

Under IRC Section 1411, NIIT applies to the lesser of net investment income or the amount by which modified adjusted gross income (MAGI) exceeds $200,000 for single filers or $250,000 for married filing jointly. The IRS Form 8960 instructions confirm that net investment income includes interest, dividends, capital gains, rental income, and passive business income.

Critically, IRA and qualified plan distributions are explicitly excluded from the NIIT base. This is a significant structural advantage for retirees with large tax-deferred accounts, though those distributions still increase MAGI and can indirectly push other income into NIIT territory.

For a married couple with $500,000 in annual investment income from a taxable brokerage account, the NIIT exposure alone is $11,400 per year. Add rental income from a commercial property and that number climbs further. This is the tax that deserves the planning attention that most generic retirement articles spend on FICA.

The planning levers for NIIT are different from FICA. You cannot avoid NIIT by restructuring employment arrangements. You reduce it by managing MAGI through Roth conversions, structuring your retirement income portfolio across tax-efficient buckets, qualified charitable distributions (QCDs), and tax-loss harvesting in taxable accounts.

What Is the Medicare IRMAA Surcharge Threshold for High-Income Retirees?

IRMAA (Income-Related Monthly Adjustment Amount) is the Medicare premium surcharge that applies when your MAGI exceeds certain thresholds. It is the most underestimated tax cost in high-income retirement planning, and it scales aggressively.

According to the Centers for Medicare and Medicaid Services, high-income Medicare beneficiaries with MAGI above $103,000 (single) or $206,000 (married filing jointly) in 2024 pay IRMAA surcharges that can increase Medicare Part B premiums from the standard $174.70 per month to as much as $594.00 per month per person. That is a difference of $419.30 per person per month, or roughly $5,032 per person annually, just for Part B.

The 2024 IRMAA tiers are as follows:

Part D premiums carry additional IRMAA surcharges on top of these figures. A couple at the highest tier pays over $13,400 annually in Part B premiums alone, compared to $4,192 at the standard rate. That $9,200 annual difference is real money, and it is entirely driven by MAGI management.

IRMAA uses a two-year lookback. Your 2024 premiums are based on your 2022 tax return. This means a large Roth conversion, a business sale, or a concentrated stock liquidation in a prior year can trigger surcharges before you have time to react. Planning two to three years ahead is not optional at this income level.

For more on understanding taxable retirement income and how different income sources affect your MAGI calculation, the distinctions matter considerably.

How Can a $5 Million Portfolio Be Structured to Minimize Payroll and Medicare Taxes in Retirement?

The FICA exposure for a retiree with a $5M+ portfolio is minimal by default. The real optimization target is MAGI, because MAGI determines both IRMAA surcharges and NIIT exposure. Every dollar of MAGI reduction at the margin can eliminate thousands in Medicare premiums.

Research published in the Journal of Financial Planning demonstrates that strategic sequencing of retirement income withdrawals, prioritizing taxable accounts first, then tax-deferred, then Roth, can materially reduce IRMAA exposure and NIIT liability for affluent retirees. The sequencing logic is straightforward: deplete taxable accounts while they generate capital gains taxed at preferential rates, defer tax-deferred withdrawals until required, and preserve Roth accounts as the last resort since qualified Roth distributions do not count toward MAGI.

The complication for most FATFIRE retirees is that large traditional IRA or 401(k) balances generate substantial required minimum distributions (RMDs) starting at age 73 under SECURE 2.0. A $5M traditional IRA could generate RMDs exceeding $200,000 annually, which pushes a couple firmly into the upper IRMAA tiers regardless of other income.

The practical response is Roth conversion laddering in the years between retirement and RMD onset. Converting $200,000 to $400,000 per year during a lower-income window reduces the future tax-deferred balance, lowers eventual RMDs, and can permanently reduce MAGI for IRMAA and NIIT purposes for decades. The Roth conversion strategies for retirees available after age 60 deserve specific attention given the five-year rule interactions.

Municipal bonds in taxable accounts are another tool. Interest from munis is excluded from federal income tax and does not count toward MAGI for IRMAA purposes, making them structurally efficient for high-income retirees managing premium exposure.

The taxation of non-retirement accounts adds another layer to this analysis, particularly for retirees holding appreciated securities or real estate in taxable accounts.

Do Retirees Pay Social Security and Medicare Taxes on 401(k) Distributions?

No. IRS Publication 15 explicitly excludes distributions from qualified retirement plans, including 401(k), 403(b), and traditional IRA accounts, from FICA withholding. The IRS confirms in Topic No. 751 that Social Security tax applies at 6.2% on wages up to the annual wage base limit, and Medicare tax applies at 1.45% on all wages. Distributions from retirement accounts are not wages.

This is one of the cleaner rules in the tax code. The money in these accounts was subject to FICA when it was earned as wages. The distributions are not re-subjected to payroll taxes.

What distributions do trigger is ordinary income tax. A $300,000 traditional IRA withdrawal is fully taxable as ordinary income in the year received. It also increases MAGI, which affects IRMAA tiers and can push passive investment income over the NIIT threshold. The absence of FICA on the distribution does not mean the distribution is tax-free.

Roth IRA qualified distributions are the exception across the board. No FICA, no income tax, and no MAGI impact. This is why Roth IRA distribution tax treatment by state matters for retirees who have moved to a different state since making contributions.

FICA and Retirement Income: The Self-Employment Exception in Detail

For retirees who remain active in business, the self-employment tax rules deserve more than a passing mention. The IRS applies SE tax at 15.3% on net self-employment earnings up to $168,600 (2024 Social Security wage base), and 2.9% on earnings above that threshold. There is no wage base cap on the Medicare portion.

The 0.9% Additional Medicare Tax applies on top of the 2.9% for single filers earning above $200,000 or married filers above $250,000 in combined wages and self-employment income. This is separate from IRMAA and separate from NIIT.

The distinction between passive and active income is critical under IRC Section 1402. Limited partner distributions are generally excluded from SE tax. General partner distributive shares are not. If you converted a general partnership interest to a limited partnership interest at retirement specifically to avoid SE tax, the IRS may challenge the conversion if you continue to exercise management authority.

S-corporation structures remain the most common planning tool for reducing SE tax on business income. By splitting income between reasonable compensation (subject to FICA) and distributions (not subject to FICA), owner-employees can reduce payroll tax exposure. The IRS has been explicit that this strategy is permissible within limits, but the "reasonable compensation" standard is enforced. Courts have consistently upheld IRS reclassifications when compensation is clearly below market for the services performed.

If you have board seats or advisory roles paying fees, those fees are typically self-employment income subject to SE tax. Structuring those arrangements through an S-corporation can shift some of that income out of the SE tax base, though the reasonable compensation requirement applies here as well.

State Tax Considerations for High-Income Retirees

FICA is a federal tax. States do not impose their own version of FICA. But state income taxes on retirement income vary significantly and can rival or exceed the federal IRMAA and NIIT burden for retirees in high-tax states.

Several states exempt pension income, Social Security benefits, or retirement account distributions entirely. Others tax all retirement income at ordinary rates. For a retiree drawing $400,000 annually from a traditional IRA in California, the state income tax on that distribution alone exceeds $30,000 per year.

The states with no retirement income tax represent a meaningful planning opportunity for retirees with location flexibility. The decision to relocate from California or New York to Florida or Texas is not primarily about FICA. It is about eliminating a state income tax rate of 9% to 13% on retirement distributions that can persist for decades.

Domicile planning for high-net-worth retirees involves more than filing a change of address. States like California and New York aggressively audit high-income individuals who claim to have changed domicile, particularly when the individual retains property, business interests, or family ties in the prior state. The how your tax situation changes in retirement analysis should include a domicile audit if you are considering a state change.

Practical FICA and NIIT Planning Checklist for FATFIRE Retirees

The planning priorities differ depending on your income structure. The following framework applies to retirees with $5M+ in investable assets.

If your income is primarily from investment accounts:

FICA is not your concern. Focus on MAGI management for IRMAA and NIIT. Review your two-year IRMAA lookback annually. Execute Roth conversions in lower-income years before RMDs begin. Consider qualified charitable distributions from IRAs once you reach age 70.5, as QCDs satisfy RMD requirements without increasing MAGI.

If you retain active business interests:

Audit your entity structures for SE tax exposure. Confirm that S-corporation reasonable compensation is documented and defensible. Review whether any general partnership interests can be restructured as limited interests without triggering IRS challenge. Consult with your tax attorney on material participation rules if you are claiming passive status on any business income.

If you are in the pre-RMD window (ages 60 to 72):

This is the highest-value planning period for most FATFIRE retirees. Roth conversion capacity is at its peak before RMDs force taxable income. Model the IRMAA impact of different conversion amounts. The capital gains tax implications in retirement accounts interact with conversion planning in ways that are easy to mismodel without running the numbers explicitly.

If you have inherited retirement accounts:

The SECURE Act eliminated the stretch IRA for most non-spouse beneficiaries, replacing it with a 10-year distribution window. Inherited IRA distributions are subject to ordinary income tax but not FICA or NIIT. The tax rules for inherited pensions follow a different set of rules depending on the plan type and beneficiary relationship.

On healthcare before Medicare eligibility:

Retirees who leave employment before age 65 face a gap in healthcare coverage options after leaving employment. ACA marketplace premiums are income-tested, which creates an interaction between MAGI management and healthcare costs that is worth modeling explicitly if you retire before Medicare eligibility.

References

• Internal Revenue Service -- "Publication 15 (Circular E), Employer's Tax Guide" (2024).
• Internal Revenue Service -- "Topic No. 751: Social Security and Medicare Withholding Rates" (2024).
• Internal Revenue Service -- "Instructions for Form 8960: Net Investment Income Tax" (2024).
• Internal Revenue Service -- "Self-Employment Tax (Social Security and Medicare Taxes), Schedule SE" (2024).
• Centers for Medicare and Medicaid Services -- "Medicare Costs at a Glance: Income-Related Monthly Adjustment Amount (IRMAA)" (2024).
• Internal Revenue Service -- "IRC Section 1402: Definitions of Net Earnings from Self-Employment."
• Social Security Administration -- "Contribution and Benefit Base (Social Security Wage Base)" (2024).
• Journal of Financial Planning -- "Tax-Efficient Retirement Income Sequencing for High-Net-Worth Clients" (2022).