When you roll over a 401k, the IRS requires your plan administrator to withhold 20% of the distributed amount for federal taxes — unless you arrange a direct rollover. In 2026, this mandatory withholding applies to indirect rollovers only. Direct rollovers avoid withholding entirely. Failing to understand this distinction can cost you thousands in unnecessary taxes and penalties. (Related: The Complete 2026 Guide: How Much Does a 401k Rollover to IRA Cost?) (Related: 7 401k Rollover Mistakes That Cost You Money in 2026) (Related: Hidden 401k Rollover Fees in 2026: 7 Essential Costs to Watch) (Related: How the Death of the Fiduciary Rule Affects Your 401(k) Rollover Decisions) (Related: SECURE 2.0 Complete Guide to 401k Rollover Rules in 2026) (Related: The Complete Guide to In-Service 401k Rollovers: Rules and Eligibility 2026)

How 401k Rollover Tax Withholding Works in 2026

The 20% mandatory withholding rule is one of the most misunderstood aspects of moving retirement funds. Here’s exactly how it works depending on the type of rollover you choose.

Direct Rollovers: No Withholding Required

A direct rollover occurs when your plan administrator transfers funds directly to your new IRA or employer-sponsored plan. Because the money never touches your hands, no withholding applies. The full 100% of your account balance moves to the new account, and no tax event is triggered at the time of transfer. This is the most cost-efficient method from a withholding standpoint.

Indirect Rollovers: 20% Mandatory Withholding

An indirect rollover means the check is made payable to you personally. In this case, your plan administrator is legally required to withhold 20% of the taxable portion before sending you the funds. For example, if your 401k balance is $100,000, you would receive a check for $80,000 — with $20,000 sent to the IRS.

To complete a tax-free rollover, you must deposit the full $100,000 into an eligible account within 60 days. That means you’d need to come up with the $20,000 withheld from your own pocket. If you only deposit the $80,000 you received, the $20,000 withheld is treated as a taxable distribution — and potentially subject to the 10% early withdrawal penalty if you’re under age 59½.

You can use our 401k Rollover Calculator to estimate how much you’d owe in taxes and penalties based on your rollover method and account balance.

Federal Tax Rates Applied to Taxable 401k Distributions in 2026

If you don’t complete the rollover correctly — or choose to take a full distribution — the taxable amount is added to your ordinary income for the year. The 2026 federal income tax brackets that would apply are:

10% — Up to $11,925 (single) / $23,850 (married filing jointly)
12% — $11,926–$48,475 (single) / $23,851–$96,950 (MFJ)
22% — $48,476–$103,350 (single) / $96,951–$206,700 (MFJ)
24% — $103,351–$197,300 (single) / $206,701–$394,600 (MFJ)
32% — $197,301–$250,525 (single) / $394,601–$501,050 (MFJ)
35% — $250,526–$626,350 (single) / $501,051–$751,600 (MFJ)
37% — Over $626,350 (single) / Over $751,600 (MFJ)

Note: These brackets are based on projected 2026 inflation-adjusted figures. The IRS typically releases official bracket adjustments in October of the preceding year. Always verify current figures at IRS.gov.

A large 401k distribution can push you into a significantly higher tax bracket for the year. For example, if your regular income is $60,000 and you take a $150,000 distribution, a substantial portion would be taxed at 24% or higher.

If you’re under 59½, calculate your total exposure using our Early Withdrawal Penalty Calculator to factor in both ordinary income taxes and the 10% penalty.

State Tax Withholding on 401k Rollovers in 2026

Beyond federal withholding, many states impose their own income tax on retirement distributions. State tax treatment varies significantly:

States With No Income Tax

As of 2026, these states impose no state income tax on 401k distributions: Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, and Wyoming. Residents of these states avoid state-level withholding entirely.

States That Exempt Retirement Income

Several states with income taxes still partially or fully exempt retirement account distributions. Illinois, Mississippi, and Pennsylvania, for example, generally do not tax retirement account distributions. Iowa and West Virginia have been phasing in exemptions in recent years. State laws change frequently, so confirm your state’s current rules with your state revenue department.

States With Full Income Tax on Distributions

States like California, New York, New Jersey, and Oregon tax 401k distributions as ordinary income. California’s top marginal rate reaches 13.3%, which can significantly increase your overall tax bill on a large distribution. State withholding rates on retirement distributions typically range from 1% to 10% depending on the state and the amount.

Important: State withholding rules apply to indirect rollovers just as federal rules do. A direct rollover generally avoids both federal and state withholding triggers.

The 60-Day Rollover Rule and Withholding Costs

The IRS allows you 60 calendar days from the date you receive an indirect distribution to deposit the funds into an eligible retirement account. Missing this deadline converts the entire amount into a taxable distribution. The financial cost of missing the 60-day window includes:

Ordinary income taxes at your marginal federal rate
State income taxes where applicable
A 10% early withdrawal penalty if you are under age 59½

The IRS does grant waivers in limited hardship situations, but these require a formal letter ruling process that can be time-consuming and is not guaranteed. The safest approach is always a direct rollover, which completely removes the 60-day deadline concern and eliminates withholding.

For 403b plan participants, the same withholding rules apply. Review the details using our 403b Rollover Calculator.

Use Our Free Calculators to Estimate Your Rollover Costs

Understanding your withholding exposure is much easier with the right tools. Here are the calculators most relevant to tax withholding on rollovers:

401k Rollover Calculator — Estimate how much you’ll owe if your rollover is taxable, based on your balance, income, and filing status.
Early Withdrawal Penalty Calculator — Calculate your combined tax and penalty cost if you’re under 59½ and your rollover fails.
Traditional vs Roth IRA Calculator — Compare the long-term cost differences between rolling into a traditional IRA versus a Roth, including the upfront tax impact.

Frequently Asked Questions

Is the 20% withholding on a 401k rollover refundable?

Yes. If you complete an indirect rollover by depositing the full pre-withholding amount within 60 days, the 20% withheld is credited against your annual tax liability when you file your return. If it exceeds your actual tax bill, the IRS refunds the difference. However, you must have the out-of-pocket funds to cover the withheld amount upfront.

Does Roth 401k money have withholding on a rollover?

Roth 401k contributions (after-tax) are not subject to the 20% withholding when rolled over to a Roth IRA, because those contributions were already taxed. However, any employer matching contributions in a Roth 401k are typically pre-tax and would be subject to standard withholding rules if distributed rather than rolled over directly.

What happens if I miss the 60-day rollover deadline?

Missing the deadline makes the distributed amount fully taxable as ordinary income in the year received. If you are under 59½, an additional 10% early withdrawal penalty also applies. The IRS may grant a waiver in cases of genuine hardship, but there is no guarantee, and the waiver process can take months.

Can my new custodian handle withholding for me?

No. Your new IRA custodian receives funds after the fact. The withholding responsibility sits entirely with your old plan administrator at the time of distribution. The best way to avoid withholding is to instruct your old plan to send funds directly to your new custodian using a direct rollover or trustee-to-trustee transfer.

Are rollover custodian fees tax deductible?

As of 2026, miscellaneous itemized deductions — including investment management and custodial fees — remain suspended under current tax law through at least 2025, and this is expected to continue under current legislative

The Complete 2026 Guide to 401k Rollover Tax Withholding