When you take a nonperiodic distribution from a retirement account, the institution holding your money withholds 10% for federal income tax by default. That figure is a prepayment toward what you’ll actually owe, not the final bill, and for most people it isn’t enough. You can change it, and in some cases you should, but only if you act before the money leaves the account.
What Triggers the 10% Default
Federal tax law sorts retirement payouts into two categories. Periodic payments arrive on a predictable schedule, like monthly pension checks or lifetime annuity payments. Everything else is nonperiodic.1Office of the Law Revision Counsel. 26 USC 3405 – Special Rules for Pensions, Annuities, and Certain Other Deferred Income Lump-sum withdrawals, one-off IRA withdrawals for an emergency or a purchase, hardship withdrawals from an employer plan, and partial withdrawals outside a systematic schedule all fall into this bucket. The common thread is irregularity: if the amount and timing aren’t fixed and repeating, the distribution is almost certainly nonperiodic.
Whenever you request one and don’t specify a different withholding preference, the payer withholds 10% of the gross amount and sends it to the IRS. Withdraw $50,000, and $5,000 goes to withholding while $45,000 lands in your account. The rate applies only to the portion reasonably believed to be taxable. Traditional IRAs and most employer plans are treated as fully taxable for this purpose. Qualified distributions from a Roth IRA don’t count as gross income and aren’t subject to the withholding.1Office of the Law Revision Counsel. 26 USC 3405 – Special Rules for Pensions, Annuities, and Certain Other Deferred Income
Why 10% Is Rarely the Right Number
The 10% is a deposit, not a settlement. When you file your return, the full taxable distribution is added to your other income and taxed at your marginal rate. If that rate is 22% or 24%, the 10% withheld covers less than half of what you owe on the withdrawal alone. The gap comes due in April.
Also worth separating from the withholding: the 10% early withdrawal penalty. That’s a different 10%, imposed as an additional tax when you take money out before age 59½.2Office of the Law Revision Counsel. 26 USC 72 – Annuities; Certain Proceeds of Endowment and Life Insurance Contracts Both can hit the same distribution. If you’re 45 and pull $30,000 from a traditional IRA, the custodian withholds $3,000 and sends you $27,000. At tax time you owe income tax on the full $30,000 at your marginal rate, plus a $3,000 early withdrawal penalty. The $3,000 already withheld is a credit against those combined liabilities, and it usually falls short. A range of exceptions can eliminate the early withdrawal penalty (disability, substantially equal periodic payments, medical expenses above 7.5% of AGI, separation from service after age 55 for employer plans, and others), and the IRS maintains the full list. Distributions from a SIMPLE IRA within your first two years of participation carry a 25% penalty rather than 10%.3Internal Revenue Service. Retirement Topics – Exceptions to Tax on Early Distributions
When 20% Applies Instead
Not every nonperiodic distribution uses the 10% rate. If you take a distribution from an employer plan (401(k), 403(b), and similar) that could have been rolled into another retirement account, the plan must withhold 20% and you can’t opt out.1Office of the Law Revision Counsel. 26 USC 3405 – Special Rules for Pensions, Annuities, and Certain Other Deferred Income The law calls this an eligible rollover distribution, and the higher rate is mandatory.
The path the money takes decides which rule applies. In a direct rollover, the plan sends the funds straight to another retirement plan or IRA, and no withholding is taken. In an indirect rollover, the check comes to you first, and the 20% is withheld before it reaches you. That creates a trap. Say your 401(k) distributes $50,000 and withholds $10,000, so you receive $40,000. To roll the full amount over within the 60-day window and keep it all tax-free, you have to deposit $50,000 into the new account, meaning you supply the missing $10,000 from other funds. Roll over only the $40,000 you actually got, and the $10,000 withheld is treated as a taxable distribution, potentially with the 10% early withdrawal penalty on top if you’re under 59½.4Internal Revenue Service. Rollovers of Retirement Plan and IRA Distributions Rollovers under $200 don’t require withholding.5eCFR. 26 CFR 31.3405(c)-1 – Withholding on Eligible Rollover Distributions; Questions and Answers
The clean workaround is to request a direct rollover. No withholding, no 60-day clock, no shortfall to make up.
Changing the Rate With Form W-4R
You aren’t stuck with 10%. IRS Form W-4R lets you pick any whole-number rate from 0% to 100% for a nonperiodic distribution. Zero means nothing is withheld. Your marginal rate means you probably won’t owe extra when you file. The form itself is short: your Social Security number and the rate you want. Once you submit it, the election stays in effect for future nonperiodic distributions from the same account until you file a new one.6Internal Revenue Service. 2026 Form W-4R – Withholding Certificate for Nonperiodic Payments and Eligible Rollover Distributions
W-4R doesn’t override the mandatory 20% on eligible rollover distributions from employer plans. It only reaches distributions where 10% would otherwise be the default.
Picking a Rate
The W-4R instructions include marginal rate tables to help you settle on a percentage. The full method has you find your rate without the distribution and with it, then, if the distribution straddles brackets, split it across those brackets and take a weighted average.6Internal Revenue Service. 2026 Form W-4R – Withholding Certificate for Nonperiodic Payments and Eligible Rollover Distributions If that’s more math than you want to do, there’s a shortcut: look up the rate for your total income including the distribution and use it. You’ll overwithhold a bit and get the excess back as a refund.
When to File It
You can submit or revoke a W-4R at any time before the distribution is processed. Federal rules require the plan administrator to accept any election or revocation made up to the moment of distribution, though the administrator can set earlier internal deadlines to leave time for processing.7eCFR. 26 CFR 35.3405-1T – Questions and Answers Relating to Withholding on Pensions, Annuities, and Certain Other Deferred Income Most firms need a few business days. Miss the window and 10% is what you get.
Avoiding an Underpayment Penalty on a Big Withdrawal
This is where the default rate causes the most damage. You take $200,000 as a lump sum, the payer withholds $20,000, and you use the rest. At filing time you find you owe $44,000 in income tax and possibly an underpayment penalty on top.
The IRS charges that penalty when you owe $1,000 or more at filing and your total withholding and estimated payments haven’t reached the smaller of 90% of the current year’s tax or 100% of last year’s. If your prior-year AGI was over $150,000, the 100% figure becomes 110%.8Internal Revenue Service. Underpayment of Estimated Tax by Individuals Penalty
Two ways to stay clear of it:
- Raise your withholding on Form W-4R before the distribution is processed. Tax withheld from a retirement distribution is treated like paycheck withholding and counts as paid evenly across the year, which is more forgiving than making a large estimated payment after the fact.9Internal Revenue Service. Large Gains, Lump Sum Distributions, Etc.
- Make a quarterly estimated tax payment covering the gap if the distribution has already gone out with too little withheld.
If a large distribution came late in the year and you’re facing a penalty anyway, the annualized income installment method on Form 2210 can reduce or eliminate it by showing the IRS your income was concentrated in one quarter rather than spread evenly.10Internal Revenue Service. Instructions for Form 2210
State Withholding
Federal withholding is only half the picture. Most states with an income tax also withhold on retirement distributions, and the rules vary. Some let you opt out. Some don’t. A few states have no individual income tax, so nothing gets withheld at the state level. Your financial institution should include the right state form alongside the W-4R when your state requires one.
Reading Your 1099-R
Every nonperiodic distribution of $10 or more generates a Form 1099-R from the payer.11Internal Revenue Service. 2025 Instructions for Forms 1099-R and 5498 It reports the gross distribution, the taxable portion, federal and state withholding, and a distribution code. Code 1 flags an early distribution with no known exception. Code 7 marks a normal distribution after 59½. That code tells the IRS whether to expect the early withdrawal penalty, or to expect you to claim an exception on Form 5329. You’ll get the 1099-R by the end of January following the distribution year. Check it against your records, and if the withholding amount or the code is wrong, get a corrected form from the plan administrator before you file.