Do 401(k) Withdrawals Count as Income for Obamacare?

Yes. Taxable withdrawals from a 401(k) count as income for Obamacare, and they do so directly: the amount flows into the Modified Adjusted Gross Income figure the Marketplace uses to set your Premium Tax Credit and cost-sharing help. Two changes make this matter more in 2026 than in recent years. The 400% Federal Poverty Level subsidy cliff is back, and the caps that used to limit how much excess subsidy you had to repay at tax time are gone.1Office of the Law Revision Counsel. 26 USC 36B – Refundable Credit for Coverage Under a Qualified Health Plan2Internal Revenue Service. Updates to Questions and Answers About the Premium Tax Credit

MAGI for Marketplace purposes starts with the Adjusted Gross Income on line 11 of your federal return, then adds back tax-exempt interest and the non-taxable portion of Social Security.3Healthcare.gov. Income A taxable 401(k) distribution is already inside AGI, so it lands in MAGI dollar for dollar.4Internal Revenue Service. Modified Adjusted Gross Income

Which 401(k) Withdrawals Count

Traditional 401(k) Distributions

Every dollar you pull from a traditional 401(k) is taxable as ordinary income because the contributions and growth were never taxed.5Internal Revenue Service. 401(k) Resource Guide – Plan Participants – General Distribution Rules The plan reports the distribution on Form 1099-R, and the amount in Box 2a flows onto your return and into MAGI.6Internal Revenue Service. Form 1099-R 2025 Distributions From Pensions, Annuities, Retirement or Profit-Sharing Plans, IRAs, Insurance Contracts, etc.

Roth 401(k) Distributions

A qualified Roth 401(k) distribution is tax-free and does not touch MAGI. Qualified means you have held the account at least five tax years and are 59½ or older, disabled, or the distribution is made after death.7Internal Revenue Service. Retirement Plans FAQs on Designated Roth Accounts If the distribution isn’t qualified, the earnings portion is taxable and does hit MAGI; your original after-tax contributions still come back tax-free.

Hardship Withdrawals

A hardship withdrawal is fully taxable on any previously untaxed money, just like a regular distribution.8Internal Revenue Service. 401(k) Plan Hardship Distributions – Consider the Consequences The emergency reason for the withdrawal doesn’t earn it any different treatment for MAGI. A 10% early withdrawal penalty may also apply if you’re under 59½; the penalty itself doesn’t add to MAGI, but the distribution does.

Required Minimum Distributions

Starting at age 73, you must take required minimum distributions from a traditional 401(k) each year, unless you’re still working for the plan sponsor and own less than 5% of the business.9Internal Revenue Service. Retirement Plan and IRA Required Minimum Distributions FAQs RMDs are fully taxable and count toward MAGI whether you need the money or not. The required amount grows each year as the life-expectancy divisor shrinks, so a large traditional balance can push a retiree close to the subsidy cliff on RMDs alone.

Rollovers and Loans That Don’t Count

A direct rollover from your 401(k) to an IRA or another qualified plan moves the money without touching your hands, no tax is withheld, and the taxable amount reported is zero.10Internal Revenue Service. Rollovers of Retirement Plan and IRA Distributions MAGI is untouched.

An indirect rollover works too, but the plan must withhold 20% before sending you the check, and you have 60 days to deposit the full pre-withholding amount into the new account to keep the whole thing tax-free.11Internal Revenue Service. Topic No. 413, Rollovers From Retirement Plans Any shortfall becomes a taxable distribution; miss the 60-day window and the whole amount is taxable. Direct rollovers avoid the trap.

A 401(k) loan is not a distribution and doesn’t affect MAGI, as long as you keep up the payments. If the loan defaults, or if you leave your job with a balance and don’t repay within the plan’s required timeframe, the outstanding balance becomes a deemed distribution that is fully taxable.12Internal Revenue Service. Retirement Plans FAQs Regarding Loans Defaulted loans are one of the more common surprise MAGI events for Marketplace enrollees.

What Crossing the Income Line Costs in 2026

Premium Tax Credits scale with MAGI as a percentage of the Federal Poverty Level. In general, households between 100% and 400% of FPL qualify, with the credit shrinking as income rises.13Internal Revenue Service. Eligibility for the Premium Tax Credit The 2026 FPL figures for the 48 contiguous states, with the 400% cutoff where the credit ends, look like this:14Federal Register. Annual Update of the HHS Poverty Guidelines

  • Single person: FPL $15,960; 400% = $63,840
  • Household of 2: FPL $21,640; 400% = $86,560
  • Household of 3: FPL $27,320; 400% = $109,280
  • Household of 4: FPL $33,000; 400% = $132,000

From 2021 through 2025, the American Rescue Plan and the Inflation Reduction Act removed the 400% ceiling, so higher-income enrollees still received a credit that capped premiums at 8.5% of income. That rule expired January 1, 2026, and Congress did not extend it.1Office of the Law Revision Counsel. 26 USC 36B – Refundable Credit for Coverage Under a Qualified Health Plan The cliff is abrupt. A single filer at $63,839 of MAGI qualifies for a credit; at $63,841 the credit is zero.

A concrete case: a single retiree living on $45,000 of pension and Social Security who takes a $20,000 traditional 401(k) distribution moves to $65,000 of MAGI. That crosses the $63,840 line and erases the full year’s Premium Tax Credit.

The reconciliation math has also gotten harsher. Advance Premium Tax Credits are paid to your insurer each month based on your income estimate, then trued up on Form 8962 when you file.15Internal Revenue Service. Reconciling Your Advance Payments of the Premium Tax Credit In prior years, any excess you owed back was capped between $375 and $3,250 depending on income and filing status. Starting with the 2026 tax year, those caps are gone. You repay the full excess amount, with no ceiling.2Internal Revenue Service. Updates to Questions and Answers About the Premium Tax Credit

If you take a taxable withdrawal mid-year, report the income change to the Marketplace right away so it reduces your advance credits going forward.16Internal Revenue Service. 2025 Instructions for Form 8962 A smaller monthly subsidy now is easier to absorb than an uncapped bill in April.

Premium credits aren’t the only benefit on the line. Cost-sharing reductions, which lower deductibles, copays, and the annual out-of-pocket maximum on Silver plans, phase out at 250% FPL.17HHS.gov. Eligibility for Insurance Affordability Programs For a single filer in 2026 that’s $39,900. A withdrawal that crosses that threshold can add thousands in out-of-pocket costs even if it doesn’t reach the Premium Tax Credit cliff.

Ways to Keep a Withdrawal From Wrecking the Subsidy

ACA eligibility is measured by calendar year, so timing and account choice are the practical tools.

  • Spread withdrawals across years. Pulling $20,000 over three years keeps annual MAGI lower than taking $60,000 at once and can preserve credits in every year.
  • Draw from Roth accounts first. Qualified Roth 401(k) or Roth IRA distributions don’t raise MAGI, so during years on Marketplace coverage they’re the cleanest source of cash.
  • Consider Roth conversions in low-income years. A year between retiring and starting Social Security may allow a small conversion at a low tax rate, buying tax-free withdrawals later. The conversion itself raises MAGI that year, so size it to stay under the subsidy threshold.
  • Use qualified charitable distributions for giving. If you’re 70½ or older and would give to charity anyway, a QCD sent directly from an IRA to a qualified charity satisfies your RMD without adding to taxable income. QCDs cannot be made directly from a 401(k), so this requires rolling to an IRA first.18Internal Revenue Service. Important Charitable Giving Reminders for Taxpayers
  • Update the Marketplace the same month you take a distribution. With no repayment cap in 2026, every dollar of unreported income change comes back at tax time.

Run the numbers before the withdrawal, not after. Whether a distribution will cross an FPL threshold is knowable in advance; the tax bill and the lost subsidy after the fact are not negotiable.