What Is the Rule of 55 for 401(k) Withdrawals?

The Rule of 55 for 401(k) withdrawals lets you take money out of your current employer’s 401(k) or 403(b) without the usual 10% early-withdrawal penalty, provided you leave that job during or after the calendar year you turn 55. It does not erase income tax on the withdrawal. It only removes the extra 10% the IRS otherwise charges on most distributions taken before age 59½.¹

Who Qualifies

The exception comes from Internal Revenue Code Section 72(t)(2)(A)(v), which waives the 10% additional tax on distributions made to an employee after “separation from service after attainment of age 55.”² Two conditions have to line up.

You separated from the employer that sponsors the plan. It doesn’t matter whether you quit, were laid off, or were fired.
You turned 55 at some point during the calendar year you left, or earlier. You don’t have to already be 55 on your last day. Someone born in November who leaves that January still qualifies.

There’s no full-time requirement. Part-time and seasonal workers qualify as long as they meet the age and separation conditions.

Public Safety Employees Qualify at 50

Qualified public safety employees can start penalty-free withdrawals at age 50 instead of 55, or after 25 years of service under the plan, whichever comes first.² The lower threshold covers state and local law enforcement, firefighters, emergency medical workers, and corrections officers, along with certain federal employees: federal law enforcement officers, federal firefighters, air traffic controllers, customs and border protection officers, and Capitol Police. Private-sector firefighters in a 401(k) or 403(b) also qualify for age 50.¹

Which Accounts the Rule Covers

The Rule of 55 applies to qualified employer plans, primarily 401(k)s, 403(b)s, and defined benefit pensions.¹ It covers both traditional pre-tax and Roth contributions held inside those accounts.

Two account types sit outside the rule:

IRAs. Traditional, Roth, SEP, and SIMPLE IRAs are explicitly excluded from the separation-from-service exception by the tax code. If you roll your 401(k) into an IRA after leaving, you lose the ability to use the Rule of 55 for those funds. Keep the money in the employer plan if you plan to take early distributions.²
Governmental 457(b) plans. These generally aren’t subject to the 10% early-withdrawal penalty at all (except for amounts rolled in from other plan types), so the Rule of 55 isn’t needed to skip a penalty that doesn’t apply.¹

Only the Plan You’re Leaving

The rule attaches to the plan sponsored by the employer you separate from. A 401(k) sitting at a previous employer doesn’t qualify, even if you meet the age and separation tests on your current job.² If you still have old 401(k) balances elsewhere, one option is to roll them into your current employer’s plan before you leave. Once those dollars are inside the current plan, your whole balance can be reached penalty-free. Not every plan accepts incoming rollovers, so confirm with the plan administrator well before your last day.

Check What Your Plan Actually Allows

The IRS grants the penalty exception. Your plan controls how you receive the money. Plenty of employer plans don’t offer partial withdrawals to former employees, which can force you to take the entire balance at once. A full lump sum in a single tax year can push you into a much higher bracket and inflate your tax bill.

Before you rely on the Rule of 55, ask your plan administrator:

Does the plan allow partial distributions after separation from service, or only a full lump-sum payout?
Can you set up recurring periodic withdrawals, such as monthly payments, instead of one distribution?
Are there waiting periods, minimum distribution amounts, or processing fees?

If your plan only allows lump sums, you may want to leave the funds in place and request separate distributions in different calendar years, when the plan permits it, to spread the tax hit.

How the Money Is Taxed

Skipping the 10% penalty is not skipping tax. Traditional 401(k) and 403(b) distributions are taxed as ordinary income in the year you receive them.¹ Your plan administrator must withhold at least 20% of the taxable amount for federal income tax on eligible rollover distributions, and you can’t elect a lower rate on those funds.³ If you expect to owe more than that, IRS Form W-4R lets you request a higher withholding rate.⁴

Whether 20% is enough depends on the size of the distribution and the rest of your income for the year. A large withdrawal can move you into a higher marginal bracket, and you’d owe the difference at filing. As a rough example, for tax year 2026 a single filer with no other income who takes a $100,000 Rule of 55 distribution would have about $83,900 in taxable income after the $16,100 standard deduction, putting the top portion of that withdrawal in the 22% bracket.⁵

Medicare Premium Surcharges

If you’re near 65 or already on Medicare, a big withdrawal can also trigger Income-Related Monthly Adjustment Amounts, the surcharges added to Medicare Part B and Part D premiums. Medicare bases IRMAA on modified adjusted gross income from two years earlier. For 2026, a single filer with income above $109,000 pays at least $81.20 extra per month for Part B, with surcharges rising up to $487.00 per month at incomes of $500,000 or more.⁶ A single-year $200,000 withdrawal could push you into a higher IRMAA tier and cost thousands in extra premiums two years later. Spreading distributions across calendar years, when your plan allows it, can help keep you below those thresholds.

Roth 401(k) Money Works Differently

If your 401(k) includes Roth contributions, the Rule of 55 waives the 10% penalty on those distributions the same way it does for pre-tax funds. Tax treatment is a separate question. A qualified Roth distribution, taken after age 59½ and after the Roth account has been open at least five years, is entirely tax-free on both contributions and earnings.

Rule of 55 withdrawals happen before 59½, so they’re typically not qualified. Your original Roth contributions still come out tax-free because tax was already paid on them. Earnings on those contributions may be subject to ordinary income tax if the five-year requirement hasn’t been met. The 10% penalty on the earnings is waived by the Rule of 55 either way.

Reporting It on Your Taxes

Getting the paperwork right is what actually keeps the IRS from billing you for the 10% penalty. When your plan processes the distribution, it issues a Form 1099-R. The distribution code in Box 7 tells the IRS whether the payment qualifies for an exception. Make sure your administrator knows you’re claiming the separation-from-service exception so the correct code goes on the form.

If the 1099-R gets coded as a standard early distribution, you can still claim the exception yourself on IRS Form 5329. Report the distribution on Line 1, then enter the exempt amount on Line 2 using Exception Number 01, which covers distributions from a qualified retirement plan after separation from service at age 55 or older (or 50 for qualified public safety employees).⁷ Filed correctly, Form 5329 stops the IRS from assessing the extra 10%.

Going Back to Work Afterward

Using the Rule of 55 doesn’t lock you out of future jobs. You can return to work full-time or part-time for a different employer without endangering the penalty-free status of withdrawals you’ve already taken, and you can keep drawing penalty-free distributions from the former employer’s plan while working somewhere new, as long as the money stays in that original plan.

Returning to the same employer you separated from is murkier. Because the rule is tied to that separation, being rehired there could complicate future withdrawals from that employer’s plan. If you’re thinking about going back to the same company, talk to a tax professional before taking additional distributions.

If You Don’t Qualify: Substantially Equal Periodic Payments

If the Rule of 55 doesn’t fit your situation, for instance if you’re younger than 55 or your money is in an IRA, Section 72(t)(2)(A)(iv) offers another penalty exception. Substantially equal periodic payments (SEPP, sometimes called 72(t) distributions) let you take a series of payments based on your life expectancy without the 10% penalty at any age.⁸

SEPP works with IRAs and doesn’t require separation from service, although employer-plan participants have to separate before starting. The catch is rigidity. Once payments begin, they must continue for at least five years or until you reach 59½, whichever comes later. Modify the schedule early and the IRS applies a recapture tax, retroactively adding the 10% penalty to every distribution you took, plus interest.⁸ Payments are calculated under one of three IRS-approved methods and are generally smaller than what you could pull under the Rule of 55, because they’re spread across your remaining life expectancy.

1
Internal Revenue Service. Retirement Topics – Exceptions to Tax on Early Distributions
2
Office of the Law Revision Counsel. 26 USC 72 – Annuities; Certain Proceeds of Endowment and Life Insurance Contracts
3
Internal Revenue Service. Form W-4R – Withholding Certificate for Nonperiodic Payments and Eligible Rollover Distributions
4
Internal Revenue Service. About Form W-4R – Withholding Certificate for Nonperiodic Payments and Eligible Rollover Distributions
5
Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026
6
Centers for Medicare & Medicaid Services. 2026 Medicare Parts A and B Premiums and Deductibles
7
Internal Revenue Service. Instructions for Form 5329 – Additional Taxes on Qualified Plans
8
Internal Revenue Service. Substantially Equal Periodic Payments