Federal tax withholding on retirement plan distributions runs on two different tracks. Take an eligible rollover distribution from a 401(k), 403(b), or 457(b) as a check made out to you, and the plan must withhold 20% for federal income tax before you see a cent. Take money from a traditional IRA, and withholding defaults to 10%, but you can raise it, lower it, or waive it entirely. The rate that applies to your distribution depends on the account type, whether the payment is a one-time withdrawal or a recurring installment, and whether you’re routing the money into another retirement account.
The Mandatory 20% on Employer Plan Rollovers
When you pull money out of an employer-sponsored plan and receive the funds directly rather than rolling them into another qualified account, federal law requires the plan administrator to withhold 20% of the taxable amount and send it to the IRS. You cannot negotiate this rate down, and you cannot opt out.1Office of the Law Revision Counsel. 26 U.S. Code 3405 – Special Rules for Pensions, Annuities, and Certain Other Deferred Income The only way to sidestep the 20% is a direct rollover, where the plan wires or mails the money straight to another retirement account or IRA without the funds ever touching your hands.
The math surprises people. On a $50,000 distribution, the plan sends you a check for $40,000 and forwards $10,000 to the government. You still owe income tax on the full $50,000 at filing time, with the $10,000 counted as a prepayment. If your actual tax rate turns out lower than 20%, the difference comes back as a refund. If your rate runs higher, you owe the gap.
Nothing stops you from asking for more than 20%. Form W-4R lets you elect a higher percentage if you expect to owe more.2Internal Revenue Service. About Form W-4R, Withholding Certificate for Nonperiodic Payments and Eligible Rollover Distributions The floor stays at 20% for any eligible rollover distribution taken in hand.
The 60-Day Rollover Trap
Here is where the 20% rule hurts people. Suppose you take that same $50,000 distribution with $10,000 withheld, then decide within 60 days to roll the money into an IRA after all. To complete the rollover tax-free, you need to deposit the full $50,000 into the IRA, not just the $40,000 that landed in your account. That means finding $10,000 from savings or another source to replace what the plan already sent to the IRS.3Internal Revenue Service. Rollovers of Retirement Plan and IRA Distributions
Roll over only the $40,000 you received, and the IRS treats the missing $10,000 as a taxable distribution. You owe income tax on that $10,000, and if you’re under 59½, you also owe the 10% early withdrawal penalty on it. The withheld amount still counts as taxes paid on your return, but the tax liability on the $10,000 “distribution” is a separate line on your bill. A direct rollover avoids the whole mess because no withholding happens and the full balance transfers intact.
IRA Withholding Rules
Traditional IRAs, SEP IRAs, and SIMPLE IRAs run on a more flexible regime. Withholding defaults to 10% of the taxable amount, and you can change it to any rate between 0% and 100%.4Internal Revenue Service. Publication 590-B (2025), Distributions from Individual Retirement Arrangements (IRAs) Submit no instructions and the custodian withholds 10% automatically. Elect 0% and nothing is taken out, leaving you to cover the full tax bill through quarterly estimated payments or at filing time.
Choosing 0% gives you more cash in hand, but it carries risk. Retirees with no other income subject to withholding sometimes elect 0% on IRA distributions and land at filing season owing a large balance plus underpayment penalties. If your IRA withdrawals make up a meaningful share of your annual income, over-withholding usually costs less than the alternative.
Periodic Payments vs. One-Time Withdrawals
The IRS splits retirement payments into two categories, and the split drives which rate applies.
Periodic payments are installments made at regular intervals over more than one year, like monthly pension checks or annuity payments. Withholding on these works like withholding on wages. The payer uses your Form W-4P together with the standard tax withholding tables to figure how much to take from each check, based on your filing status and any adjustments you’ve claimed.5Internal Revenue Service. Pensions and Annuity Withholding
Non-periodic payments cover everything else: lump sums, one-time cashouts, and ad-hoc requests. Unless the distribution qualifies as an eligible rollover subject to the mandatory 20%, non-periodic payments default to a flat 10% withholding rate, adjustable through Form W-4R to anything from 0% to 100%. IRA distributions payable on demand always count as non-periodic, even when you take them on a regular schedule.
Roth Accounts
Roth IRAs and Roth 401(k)s follow their own logic because qualified Roth distributions are entirely tax-free.6Internal Revenue Service. Roth IRAs Hold the account at least five years and reach 59½, and no federal tax is withheld from your Roth IRA distributions unless you specifically ask for it.
Non-qualified Roth IRA distributions work differently. Pull earnings before satisfying both the age and holding-period requirements and the earnings portion is taxable, with 10% default withholding that you can adjust the same way as a traditional IRA.
Roth 401(k) distributions that are eligible rollover distributions still fall under the mandatory 20% rule when taken in hand rather than directly rolled over, but only to the extent the distribution includes taxable amounts. A fully qualified Roth 401(k) distribution has no taxable portion, so 20% of zero is zero. Separate from service and pull money before the five-year clock runs out, though, and the earnings portion becomes taxable, with mandatory 20% withholding on that piece.
The 10% Early Withdrawal Penalty Sits Outside Withholding
Take money from a retirement account before 59½ and you generally owe a 10% additional tax on top of regular income tax.7Internal Revenue Service. Retirement Topics – Exceptions to Tax on Early Distributions The part people miss: this penalty is not automatically withheld from your distribution. The 20% for eligible rollovers and the 10% default for IRA distributions cover income tax only. You calculate and report the additional 10% on Schedule 2 of Form 1040, and if you haven’t set aside enough through withholding or estimated payments, you owe it at filing time.8Internal Revenue Service. Topic No. 558, Additional Tax on Early Distributions From Retirement Plans Other Than IRAs
Several exceptions can eliminate the 10% penalty, including separation from service in or after the year you turn 55, substantially equal periodic payments, disability or death, unreimbursed medical expenses above 7.5% of adjusted gross income, up to $10,000 from an IRA for a first-time home purchase, up to $5,000 for a qualified birth or adoption, and up to $22,000 for a federally declared disaster. One trap: SIMPLE IRA distributions taken within the first two years of participation carry a 25% penalty rather than 10%.
Forms That Control Your Withholding
Two IRS forms drive your election, and which one you need depends on the payment type.
Form W-4P applies to periodic payments like monthly pension or annuity installments. It works like the W-4 you’d fill out for a job, letting you specify filing status and claim adjustments that affect each payment.9Internal Revenue Service. About Form W-4P, Withholding Certificate for Periodic Pension or Annuity Payments The payer runs the numbers through standard wage withholding tables. The same form lets you elect no withholding on periodic payments if you’d rather handle taxes yourself.
Form W-4R covers non-periodic payments and eligible rollover distributions. For non-periodic IRA or plan distributions, you enter a flat percentage on line 2, anywhere from 0% to 100%.10Internal Revenue Service. Form W-4R – Withholding Certificate for Nonperiodic Payments and Eligible Rollover Distributions For eligible rollover distributions taken in hand, the same form lets you elect a rate above the mandatory 20% floor. Skip the W-4R for a non-periodic payment and the payer withholds the default 10%.
Both forms ask for your name, Social Security number, and address. The address matters because it controls where your year-end Form 1099-R gets mailed. Most plan administrators and IRA custodians accept these forms through an online portal, and some allow changes by phone for recurring payments. You can update your election before any distribution, so if your income situation shifts mid-year, adjust immediately rather than waiting for filing season.
Using Withholding to Avoid Underpayment Penalties
Federal tax is pay-as-you-go. Under-withhold from your distributions and skip quarterly estimated payments, and the IRS charges an underpayment penalty computed at a floating interest rate that changes each quarter. The rate is 7% for the first quarter of 2026 and drops to 6% for the second quarter.11Internal Revenue Service. Interest Rates Remain the Same for the First Quarter of 202612Internal Revenue Service. Internal Revenue Bulletin: 2026-08
You avoid the penalty entirely if you owe less than $1,000 after withholding and credits, if your withholding and estimated payments cover at least 90% of the tax shown on your current return, or if they cover 100% of the prior year’s tax (110% when your prior-year adjusted gross income topped $150,000, or $75,000 if married filing separately).13Internal Revenue Service. Underpayment of Estimated Tax by Individuals Penalty A separate waiver applies to people who retired after 62 or became disabled during the tax year, provided the underpayment came from reasonable cause rather than neglect.14Internal Revenue Service. Estimated Taxes
One planning move works especially well for retirees. Federal income tax withheld from retirement distributions counts as paid evenly across the year for penalty purposes, regardless of when the withholding actually occurred. Take a required minimum distribution in December with a high withholding percentage, and the IRS treats that withholding as though it were spread across all four quarters. You can potentially cover your full annual tax bill through one late-year distribution and skip quarterly estimated payments altogether.
Nonresident Aliens and State Withholding
If you’re a nonresident alien receiving a distribution from a U.S. retirement plan, the default federal withholding rate jumps to 30%.15Internal Revenue Service. Plan Distributions to Foreign Persons Require Withholding A tax treaty between the U.S. and your country of residence can lower that rate, but only if you file Form W-8BEN with the plan administrator. Without valid treaty documentation, the payer must take the full 30%.
Federal withholding is only half the picture. Most states with an income tax also withhold from retirement distributions, and the rules run in every direction. Some states mandate withholding at a fixed rate. Others tie state withholding to your federal election. States without an income tax withhold nothing. Elect 0% federal, and some states will still take their required amount regardless. Check with your plan administrator or state tax authority, because the forms and opt-out procedures vary from state to state.
How Withholding Shows Up on Your 1099-R
Every January, the payer sends Form 1099-R covering the prior year. Box 1 shows the gross distribution, Box 2a shows the taxable portion, and Box 4 shows total federal income tax withheld.16Internal Revenue Service. Form 1099-R, Distributions From Pensions, Annuities, Retirement or Profit-Sharing Plans, IRAs, Insurance Contracts, etc. You report the Box 4 amount as taxes already paid on Form 1040, which reduces your balance due or increases your refund. If Box 4 shows any amount, attach Copy B to your return when you file by mail. The distribution code in Box 7 tells the IRS whether the payment was an early distribution, a normal distribution, a rollover, or another category, which determines whether the 10% additional tax applies.17Internal Revenue Service. Instructions for Forms 1099-R and 5498 Multiple distributions from different accounts produce a separate 1099-R for each.