Tax withholding in retirement is the federal (and sometimes state) income tax pulled from each stream of retirement income before it reaches you, and the rules differ by source: Social Security, pensions, annuities, IRAs, and 401(k) plans each use a different form and a different default rate. This guide walks through every source, the form that controls it, and how to coordinate them so your total for the year is covered.
Tax withholding in retirement works source by source: Social Security uses Form W-4V with flat 7, 10, 12, or 22 percent elections; pensions and annuities use Form W-4P; IRA and 401(k) distributions use Form W-4R. One rule is mandatory: a 401(k) eligible rollover distribution paid to you carries a fixed 20 percent (Source: IRS Publications 575 and 505, 2025).
How does tax withholding in retirement work?
Tax withholding in retirement is not one flat rate. Each income source has its own default and its own IRS form, and you elect the rate on most of them. Social Security, pensions and annuities, and IRA and 401(k) withdrawals are withheld separately, so retirees often coordinate all of them to cover the year’s total tax rather than relying on any single source (Source: IRS Publication 505, 2025).
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The table below summarizes the default federal withholding and controlling form for each major retirement income source in 2026.
| Retirement income source | Default federal withholding | Form | Can you set the rate? |
|---|---|---|---|
| Social Security benefits | None unless you elect | W-4V | Flat 7, 10, 12, or 22% |
| Pension or annuity (periodic) | Wage-style method | W-4P | Yes, adjust or decline |
| Traditional IRA withdrawal | 10% | W-4R | Yes, 0% to 100% |
| 401(k) RMD or hardship distribution | 10% | W-4R | Yes, adjustable |
| 401(k) eligible rollover paid to you | 20% mandatory | W-4R | No, cannot opt out |
| Direct (trustee-to-trustee) rollover | 0% (nothing withheld) | Plan election | Not applicable |
How is Social Security benefit withholding handled?
Social Security is the one retirement income source with its own dedicated form, Form W-4V (Voluntary Withholding Request). You may elect a flat 7, 10, 12, or 22 percent of each benefit payment, or none at all; no other percentages are allowed, and withholding is optional (Source: IRS Form W-4V; Social Security Administration, 2026). You file the form with the Social Security Administration, not your plan.
Up to 85 percent of Social Security benefits can be taxable depending on combined income, so many retirees elect W-4V withholding to avoid a balance due at filing. Because only four flat rates are offered, the elected amount rarely matches your exact bracket, and some households top it up with estimated payments.
How does pension and annuity withholding work?
Periodic pension and annuity payments, meaning a series scheduled to last one year or more, use Form W-4P (Source: IRS Form W-4P, 2026). The redesigned form applies wage-style withholding based on filing status and income rather than a flat percentage, and you can claim adjustments or decline withholding entirely. Because these payments are not eligible rollover distributions, the mandatory 20 percent never applies to them.
A one-time or lump-sum payment from a pension can instead be an eligible rollover distribution, which shifts it into the 20 percent mandatory rule described below. The wage-style W-4P method applies only to the recurring stream.
How much federal tax is withheld from a 401(k) withdrawal?
A 401(k) withdrawal paid directly to you as an eligible rollover distribution carries mandatory 20% federal withholding, so a $10,000 payout arrives as $8,000 (Source: IRS Publication 575, 2025; IRC Section 3405(c)). Required minimum distributions and hardship distributions instead use the 10% nonperiodic default (Form W-4R), which you can adjust.
The rate depends on the type of distribution, not the size of the withdrawal, as the 2026 table below shows.
| Distribution type | Mandatory 20%? | Default federal withholding | Form |
|---|---|---|---|
| Eligible rollover distribution paid to you (401k, 403b, TSP) | Yes | 20% (cannot opt out) | W-4R |
| Direct (trustee-to-trustee) rollover to an IRA or plan | No | 0% (nothing withheld) | Plan election |
| Required minimum distribution (RMD) | No | 10% default, adjustable | W-4R |
| Hardship distribution | No | 10% default, adjustable | W-4R |
| Periodic payments (one year or more) | No | Wage-style methods | W-4P |
| Traditional IRA nonperiodic distribution | No | 10% default (0% to 100% allowed) | W-4R |
Is the 20% withholding on a 401(k) really mandatory?
Yes. Under IRC Section 3405(c), a payer must withhold 20% of any eligible rollover distribution paid directly to the participant, who cannot elect a lower rate or waive it (Source: IRC Section 3405(c); IRS Publication 575, 2025). This is stricter than the IRA or pension rules, where withholding can be raised, lowered, or declined.
What counts as an eligible rollover distribution?
An eligible rollover distribution is generally any taxable payout from a 401(k), 403(b), governmental 457(b), or TSP account that could be rolled into an IRA or another qualified plan (Source: IRS Publication 575, 2025). It is the category that triggers the mandatory 20 percent. Payments outside it, including RMDs, hardship distributions, and payments over one year or more, escape the 20% rule.
How can I avoid the 20% withholding?
A direct (trustee-to-trustee) rollover has the plan send the money straight to your IRA or new employer plan so you never take possession of it (Source: IRS Publication 575, 2025). Because the funds are not paid to you, IRC Section 3405(c) does not apply and nothing is withheld. Many savers request a direct rollover rather than a distribution check to keep the full balance invested.
Keeping the full balance invested is why many households consolidate accounts with a direct rollover before a planned Roth conversion strategy rather than losing 20% to interim withholding.
Direct rollover vs. indirect (60-day) rollover, and the withholding shortfall
A direct rollover moves money plan-to-plan with no withholding. An indirect (60-day) rollover pays the money to you first, triggers the mandatory 20%, and gives you 60 days to redeposit it (Source: IRS Publication 575, 2025). The catch is the shortfall: to roll over the full amount, you must replace the withheld 20% from other cash, or that portion becomes taxable.
Consider a $100,000 eligible rollover distribution paid to you:
- You request the $100,000 distribution paid directly to you.
- The plan withholds the mandatory 20 percent, or $20,000, so you receive $80,000.
- To complete a full $100,000 rollover within 60 days, you add $20,000 from other savings.
- If you redeposit only the $80,000, the missing $20,000 becomes a taxable distribution, plus a possible 10 percent penalty if you are under age 59-and-a-half (Source: IRS Publication 575, 2025).
| Step | Direct rollover | Indirect (60-day) rollover |
|---|---|---|
| Amount requested | $100,000 | $100,000 |
| Federal tax withheld | $0 | $20,000 (mandatory) |
| Cash you receive | $0 (sent to IRA) | $80,000 |
| Out-of-pocket to roll the full amount | $0 | $20,000 from other savings |
| Result if not replaced | Full amount rolled | $20,000 taxed as a distribution |
Which 401(k) distributions are NOT subject to the 20%?
Three common 401(k) payments are exempt from the mandatory 20%: required minimum distributions (RMDs), hardship distributions, and periodic payments scheduled to last one year or more (Source: IRS Publication 575, 2025). None is an eligible rollover distribution. RMDs and hardship distributions default to 10% on Form W-4R, which you can adjust, and periodic payments use Form W-4P.
RMDs generally begin at age 73, rising to 75 for those born in 1960 or later beginning in 2035 (Source: IRS, Retirement Topics: RMDs, 2026; SECURE 2.0 Act). Because an RMD cannot be rolled over, it never triggers the 20%. Full rules are in the required minimum distributions 2026 guide.
How is a 401(k) different from an IRA for withholding?
The core difference is the mandatory 20%. A 401(k) eligible rollover distribution paid to you must have 20% withheld, but a traditional IRA distribution defaults to only 10%, and you can set that IRA rate to any whole percentage from 0% to 100% on Form W-4R (Source: IRS Publication 575, 2025; IRS Form W-4R, 2026). IRA money is never subject to the 20% rule.
Once funds sit in an IRA, you control the rate from 0 percent to 100 percent, which is why many households consolidate 401(k) balances into an IRA before planning withdrawals.
Which form controls my withholding at each source?
Three IRS forms control retirement withholding. Form W-4V sets flat 7, 10, 12, or 22 percent withholding on Social Security. Form W-4P sets wage-style withholding on periodic pensions and annuities. Form W-4R sets withholding on nonperiodic and rollover payments, including IRA withdrawals, RMDs, hardship distributions, and 401(k) cash-outs (Source: IRS, About Forms W-4V, W-4P, and W-4R, 2026). You file each with the payer.
Form W-4R cannot lower the mandatory 20% on an eligible rollover distribution, but it sets the rate on an RMD, hardship distribution, or IRA withdrawal, where any whole percentage from 0% to 100% is allowed. Form W-4V and Form W-4P go to the Social Security Administration and your pension payer, respectively.
Is withholding my actual tax bill?
No. Withholding is a prepayment credited against your total federal tax for the year, not the final rate (Source: IRS Publication 505, 2025). Each distribution is taxed as ordinary income at your bracket. When you file, the amounts withheld are subtracted from what you owe, producing a refund if too much was held or a balance due if your marginal rate was higher.
For 2026, the standard deduction is $32,200 for married filing jointly and $16,100 for single filers, with an added $1,650 per spouse (or $2,050 for a single filer) at age 65 or older (Source: IRS, Rev. Proc. 2025-32, tax year 2026). A large withdrawal can also push adjusted gross income into the 3.8% net investment income tax above $200,000 single or $250,000 joint, so the real cost is a full-return calculation, not any single flat rate.
How does state tax withholding work in retirement?
State withholding is separate from the federal rules and varies by state (Source: state revenue agencies, 2026). Some states mandate it, some make it optional, and nine levy no broad income tax: Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, and Wyoming. The federal forms do not set your state amount; you elect that separately with the payer.
Where you live can change the total tax by several percentage points; see the guide to states that do not tax retirement income in 2026.
How do I avoid an underpayment penalty in retirement?
You generally avoid the penalty if total withholding plus timely estimates reach a safe harbor: at least 90% of current-year tax or 100% of prior-year tax, whichever is smaller (Source: IRS Form 2210 Instructions, 2025). If prior-year adjusted gross income was above $150,000 ($75,000 married filing separately), the prior-year figure rises to 110% (Source: IRS Publication 505, 2026).
| Safe harbor | Threshold | Who it fits |
|---|---|---|
| 90% of current-year tax | Pay at least 90% of this year’s tax | Income roughly flat or falling |
| 100% of prior-year tax | Match last year’s total tax | Many retirees; simple to target |
| 110% of prior-year tax | Prior-year AGI above $150,000 ($75,000 MFS) | Higher-AGI households |
Withholding carries a timing feature. Federal tax withheld from any source is generally treated as paid evenly across the year, whenever it was actually withheld, unless you elect otherwise (Source: IRS Form 2210 Instructions, 2025). Estimated payments, by contrast, are credited on the date paid. So a single year-end withholding from a December RMD can cover tax on other income without four quarterly checks. Households timing a conversion often fund the tax from an IRA rather than the converted amount; see using IRA withholding to pay Roth conversion tax.
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Frequently asked questions
How is tax withheld from Social Security benefits?
You may request withholding on Social Security by filing Form W-4V with the Social Security Administration and electing a flat 7, 10, 12, or 22 percent of each payment (Source: IRS Form W-4V; SSA, 2026). No other rates are allowed, and withholding is voluntary. If you choose none, you may instead cover the tax through quarterly estimated payments.
How much tax is withheld from a 401(k) withdrawal?
An eligible rollover distribution paid directly to you from a 401(k) has mandatory 20% federal withholding, so a $10,000 withdrawal arrives as $8,000 (Source: IRS Publication 575, 2025; IRC Section 3405(c)). RMDs and hardship distributions instead use a 10% default you can adjust on Form W-4R.
How is tax withheld from a pension or annuity?
Periodic pension and annuity payments use Form W-4P, which applies wage-style withholding based on your filing status and income rather than a flat percentage (Source: IRS Form W-4P, 2026). You can adjust the amount or decline withholding entirely. Because these payments are not eligible rollover distributions, the mandatory 20 percent that governs 401(k) cash-outs never applies to them.
Do RMDs have 20% mandatory withholding?
No. A required minimum distribution is not an eligible rollover distribution, so the mandatory 20% never applies to it (Source: IRS Publication 575, 2025). An RMD defaults to 10% federal withholding, which you can raise or lower on Form W-4R. Because RMDs cannot be rolled over, they are carved out of the 20% rule that governs 401(k) cash-outs.
Is retirement withholding my actual tax rate?
No. Withholding is a prepayment credited against your total federal tax for the year, not the final rate (Source: IRS Publication 505, 2025). Each retirement distribution is taxed as ordinary income at your bracket, so the amounts withheld are subtracted at filing, producing a refund if too much was held or a balance due if your marginal rate was higher.
How do I avoid an underpayment penalty in retirement?
You generally avoid the penalty when total withholding plus timely estimated payments reach a safe harbor: at least 90 percent of the current-year tax or 100 percent of the prior-year tax, whichever is smaller (Source: IRS Form 2210 Instructions, 2025). If prior-year adjusted gross income exceeded $150,000, the prior-year figure rises to 110 percent. Withholding counts as paid evenly across the year.
