How Much Can I Withdraw From My 401k After 59½?

After age 59½, there is no federal limit on how much you can withdraw from your 401(k). The IRS drops the 10% early withdrawal penalty at that age, and nothing in the tax code caps the dollar amount you can take in a year or in a single distribution.¹ The practical ceiling is your vested account balance. The real question is what a withdrawal costs you: income tax on every dollar, and, if the distribution is large, higher Medicare premiums and more of your Social Security benefit pulled into taxable income.

The One Restriction That Can Still Apply

If you’ve already left the employer that sponsors the plan, you have unrestricted access to your full vested balance. Take all of it in one lump sum if you want. Legally, nothing stops you.²

If you’re still working for the plan sponsor, the rules get narrower. The plan must let you take distributions once you reach 59½, but plan documents often limit which buckets of money — your own deferrals versus employer matching contributions, for example — you can tap while you’re still on the payroll.² Ask your plan administrator for the specific in-service withdrawal rules before assuming your whole balance is available. Once you separate from the company, those restrictions fall away.

What a Withdrawal Costs in Federal Tax

Every dollar you take out of a traditional 401(k) is ordinary income in the year you receive it.³ No capital gains rate, no retirement discount. The withdrawal stacks on top of wages, pensions, Social Security, and investment income, and the total determines your marginal bracket.

2026 Federal Income Tax Brackets

For single filers in tax year 2026:⁴

10% on income up to $12,400
12% on $12,401 to $50,400
22% on $50,401 to $105,700
24% on $105,701 to $201,775
32% on $201,776 to $256,225
35% on $256,226 to $640,600
37% on income above $640,600

For married couples filing jointly, the 10% bracket runs to $24,800, the 12% bracket to $100,800, and the 22% bracket to $211,400, with the higher rates scaling from there.⁴

Bracket creep is the reason planners often suggest spreading withdrawals across years. A single filer with a $30,000 pension who pulls $80,000 from a 401(k) reports $110,000 in taxable income before deductions, which drags part of the distribution into the 24% bracket. Splitting the same $80,000 across two tax years could keep more of it in the 22% bracket.

Mandatory 20% Federal Withholding

When your plan pays a distribution directly to you rather than to another retirement account, the administrator must withhold 20% of the taxable amount for federal income tax.⁵ Ask for $100,000 and $80,000 lands in your account. You can request more withholding if you expect a higher effective rate. You cannot request less.

The 20% isn’t a separate tax. It’s a prepayment applied against your actual liability when you file. If your true rate turns out lower, you get a refund. If your total income puts you above 20% effectively, you owe the difference.

State Income Tax

Most states tax 401(k) withdrawals as ordinary income, at rates that run from roughly 2% to over 13% depending on the state and your income level. A few states have no income tax; others exclude some or all retirement income. Check your state’s treatment before a large distribution, because the combined federal and state rate can approach 50% at the top.

Roth 401(k) Withdrawals Follow Different Rules

Money in a Roth 401(k) was taxed on the way in, so qualified withdrawals — contributions and earnings both — come out entirely tax-free.⁶ Two conditions have to be met at the same time:

You are at least 59½.
At least five tax years have passed since your first designated Roth contribution to that employer’s plan.

The five-year clock starts on January 1 of the year of your first Roth contribution. A first contribution in March 2022 means the clock started January 1, 2022, and the five-year period closes after December 31, 2026.⁶

Take money out before the five years are up and the distribution is nonqualified. Your original contributions still come back tax-free, but the earnings portion is taxed as ordinary income, split proportionally: if contributions are 94% of the balance, 94% of the withdrawal is tax-free and 6% is taxable.⁶

Starting in 2024, Roth 401(k) accounts are no longer subject to required minimum distributions during the owner’s lifetime under SECURE 2.0, which brings their treatment closer to that of Roth IRAs.

The Indirect Costs Most People Miss

The bracket math is the visible part of a large withdrawal. Two other costs get triggered by income thresholds and can quietly cost thousands.

Medicare IRMAA Surcharges

Medicare uses your modified adjusted gross income from two years back to set your Part B and Part D premiums. A big 2026 withdrawal shows up as higher premiums in 2028. For 2026, IRMAA surcharges start at $109,000 for individuals and $218,000 for married couples filing jointly.⁷

Surcharges climb in tiers. At the first tier, a single filer with income between $109,000 and $137,000 pays an extra $81.20 a month for Part B and $14.50 a month for Part D. At the top tier, above $500,000 for single filers, the combined monthly surcharge runs over $575.⁷ That is close to $7,000 in extra premiums for a single year, set in motion by income two years earlier. If you’re on Medicare or nearing 65, run the withdrawal amount against these thresholds first.

More of Your Social Security Becomes Taxable

The IRS uses “provisional income” — roughly your adjusted gross income plus half your Social Security plus tax-exempt interest — to decide how much of your benefit is taxable. Above $25,000 for a single filer or $32,000 for a joint filer, up to 50% of the benefit becomes taxable. Above $34,000 (single) or $44,000 (joint), up to 85% becomes taxable.⁸

Those thresholds have not been adjusted for inflation since the 1980s and 1990s. In practice, most retirees taking any meaningful 401(k) distribution land in the 85% tier. A $50,000 withdrawal on its own clears the top threshold, so plan on most or all of your Social Security being taxable in any year you take a sizable distribution.

When Withdrawals Stop Being Optional

The freedom to take as much or as little as you like ends at a certain age. Required minimum distributions force money out whether you need it or not, so the government eventually taxes what has been deferred.⁹ Under SECURE 2.0, the starting age depends on when you were born:

Born 1950 or earlier: RMDs began at 72.
Born 1951 through 1959: RMDs begin at 73.
Born 1960 or later: RMDs begin at 75.

Your first RMD is due by April 1 of the year after you reach the applicable age. Every year after that, the deadline is December 31. The amount is your prior year-end balance divided by a life expectancy factor from the IRS Uniform Lifetime Table.⁹

If you’re still working for the plan sponsor and don’t own more than 5% of the company, RMDs from that specific 401(k) can wait until you actually retire. The exception applies only to the plan at your current job, not to IRAs or old 401(k)s from previous employers.⁹

Missing an RMD triggers an excise tax of 25% of the amount you should have taken. That drops to 10% if you correct the shortfall within two years by taking the missed distribution and filing the required paperwork.¹⁰ A calendar reminder each fall is cheap insurance against one of the steeper penalties in the tax code.

How to Actually Request the Money

Mechanics vary by plan, but the general path is short. You fill out a distribution request form through your plan administrator’s website or your HR department, choose partial or full withdrawal, and select your withholding. You can elect above the mandatory 20%, not below.² Some plans require spousal consent for certain distribution types, and a few still require notarized signatures. Processing typically takes five to ten business days, with funds arriving by direct deposit or mailed check.

Before you submit, check your most recent statement to confirm your vested balance. Unvested employer matching contributions won’t be included, and knowing the actual number keeps your tax planning honest. If your plan is to move the money to an IRA rather than spend it, a direct rollover skips the 20% withholding entirely and preserves the full balance for later distributions on your own timing.¹¹

1
Internal Revenue Service. Retirement Topics – Exceptions to Tax on Early Distributions
2
Internal Revenue Service. 401(k) Resource Guide Plan Participants General Distribution Rules
3
Office of the Law Revision Counsel. 26 USC 402 – Taxability of Beneficiary of Employees Trust
4
Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026, Including Amendments From the One, Big, Beautiful Bill
5
Internal Revenue Service. Rollovers of Retirement Plan and IRA Distributions
6
Internal Revenue Service. Retirement Plans FAQs on Designated Roth Accounts
7
Centers for Medicare & Medicaid Services. 2026 Medicare Parts A and B Premiums and Deductibles
8
Social Security Administration. Income Taxes on Social Security Benefits
9
Internal Revenue Service. Retirement Topics – Required Minimum Distributions (RMDs)
10
Internal Revenue Service. Retirement Plan and IRA Required Minimum Distributions FAQs
11
Internal Revenue Service. Topic No 413, Rollovers From Retirement Plans