How Much Tax Do I Owe on a 1099-R Distribution?

How much tax you owe on a 1099-R distribution depends on three things: the type of account the money came from, your age when you took it, and your total income for the year. Most distributions from traditional IRAs, 401(k)s, and pensions are taxed as ordinary income at 2026 federal rates of 10% to 37%, and an additional 10% penalty applies if you were under 59½ without a qualifying exception. Roth qualified distributions, direct rollovers, and the return of after-tax contributions can owe nothing. The gap between a zero tax bill and one that swallows nearly 40% of your withdrawal comes down to a handful of boxes on the form.

Start With the Taxable Amount, Not the Gross

Box 1 shows the gross distribution. Box 2a shows the taxable amount, and that is the figure your tax is calculated on. If you made only pre-tax contributions to the account, as most traditional 401(k) and deductible IRA participants did, Box 2a usually matches Box 1 because every dollar is taxable. If you made after-tax contributions, the IRS uses an exclusion ratio to return your original investment tax-free and tax only the earnings and previously deducted amounts.1Office of the Law Revision Counsel. 26 U.S. Code 72 – Annuities; Certain Proceeds of Endowment and Life Insurance Contracts

When Box 2b is checked, the plan administrator is telling you they did not compute the taxable portion. You have to. IRS Publication 575 walks through the Simplified Method or General Rule for splitting basis from taxable earnings. Getting this wrong means either overpaying or underreporting against data the IRS already holds.

2026 Ordinary Income Rates

The taxable portion sits on top of your wages, self-employment income, and everything else you earned. There is no special rate for retirement money. The 2026 federal brackets are:2Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026

  • 10% on taxable income up to $12,400 single or $24,800 married filing jointly
  • 12% from $12,401 to $50,400 single or $24,801 to $100,800 joint
  • 22% from $50,401 to $105,700 single or $100,801 to $211,400 joint
  • 24% from $105,701 to $201,775 single or $211,401 to $403,550 joint
  • 32% from $201,776 to $256,225 single or $403,551 to $512,450 joint
  • 35% from $256,226 to $640,600 single or $512,451 to $768,700 joint
  • 37% above $640,600 single or $768,700 joint

These are marginal brackets, so a big distribution does not tax every dollar at the top rate. Only the income falling within each band is taxed at that band’s rate. A large withdrawal can still push part of your income into a higher tier. Someone earning $48,000 in wages who pulls $20,000 from a traditional IRA now has $68,000 in taxable income before deductions, and the piece above $50,400 crosses from the 12% bracket into the 22% bracket.

When a Roth Distribution Owes Nothing

A qualified distribution from a Roth IRA or designated Roth 401(k) is completely tax-free, both contributions and earnings. Two conditions have to be met: the account must have been open at least five tax years, counted from January 1 of the year of your first contribution, and you must be at least 59½, disabled, or using up to $10,000 for a first-time home purchase.3Internal Revenue Service. Publication 590-B, Distributions From Individual Retirement Arrangements

If your Roth withdrawal is not qualified, ordering rules limit the damage. Roth IRA distributions come out as regular contributions first (always tax-free and penalty-free), then conversion and rollover amounts, and finally earnings. Only earnings taken before you meet the qualified requirements are taxable and potentially subject to the 10% penalty. For a designated Roth 401(k), the five-year clock starts with your first contribution to that specific employer’s Roth account, and a qualified distribution typically shows $0 in Box 2a with Code B or H in Box 7.4Internal Revenue Service. Instructions for Forms 1099-R and 5498

The 10% Early Withdrawal Penalty

Take money out of a qualified retirement account before age 59½ and federal law adds a 10% tax on top of the income tax.5Office of the Law Revision Counsel. 26 U.S.C. 72 – Annuities; Certain Proceeds of Endowment and Life Insurance Contracts On a $50,000 taxable withdrawal, the penalty alone is $5,000. Combined with a 22% or 24% marginal bracket, the federal cost can easily reach a third of what you took. You report the penalty on Form 5329.6Internal Revenue Service. Retirement Topics – Exceptions to Tax on Early Distributions

The tax code carves out situations where the 10% penalty does not apply, though the income tax still does. Long-standing exceptions include death of the account holder, total and permanent disability, substantially equal periodic payments (once started, these must continue for five years or until you reach 59½, whichever is later, or a recapture tax hits every prior penalty-free payment), separation from service in or after the year you turn 55 for withdrawals from that employer’s plan (age 50 for public safety employees), unreimbursed medical expenses above 7.5% of AGI, distributions to a former spouse under a qualified domestic relations order, IRS levy on the account, and up to $5,000 per parent within one year of a child’s birth or adoption.6Internal Revenue Service. Retirement Topics – Exceptions to Tax on Early Distributions7Internal Revenue Service. Substantially Equal Periodic Payments

SECURE 2.0 added more exceptions for distributions after December 31, 2023: one emergency personal expense withdrawal per year up to $1,000, distributions of up to the lesser of $10,000 or 50% of the vested balance for domestic abuse victims, distributions to employees a physician has certified as terminally ill, and up to $22,000 for individuals with an economic loss from a federally declared disaster.6Internal Revenue Service. Retirement Topics – Exceptions to Tax on Early Distributions Every one of these removes only the penalty. Income tax still applies unless the money is coming out of Roth contribution basis.

What Box 7 Tells the IRS Automatically

Box 7 carries a one- or two-character code that steers how the IRS processes your distribution. Check it before you file, because a wrong code triggers automatic penalty assessments you then have to dispute.

  • Code 1: early distribution, no known exception. Expect income tax plus the 10% penalty unless you claim an exception yourself on Form 5329.
  • Code 2: early distribution, exception applies. No 10% penalty.
  • Code 3: disability distribution.
  • Code 4: distribution due to death. The beneficiary avoids the early withdrawal penalty regardless of age.
  • Code 7: normal distribution. Recipient was at least 59½ or otherwise met plan requirements. No penalty.
  • Code G: direct rollover to a qualified plan or traditional IRA. Generally not taxable in the year of the rollover.
  • Code H: direct rollover from a designated Roth account to a Roth IRA.

If the code is wrong, contact the plan administrator and request a corrected 1099-R.

Rollovers and the 60-Day Rule

A direct rollover, trustee to trustee, moves the money without triggering current tax. No withholding, and Box 2a typically shows $0 with Code G in Box 7.8Internal Revenue Service. Topic No. 413, Rollovers From Retirement Plans

An indirect rollover is riskier. If the plan cuts a check to you, it must withhold 20% for federal taxes.9Office of the Law Revision Counsel. 26 U.S.C. 3405 – Special Rules for Pensions, Annuities, and Certain Other Deferred Income You then have 60 days to deposit the full original amount into another eligible retirement account, replacing the 20% withheld out of your own pocket. Deposit only the 80% you received and the missing 20% becomes a taxable distribution, possibly with the early withdrawal penalty on top.10Internal Revenue Service. Rollovers of Retirement Plan and IRA Distributions Miss the 60 days entirely and the whole distribution is taxable income for the year you received it.

Missed Required Minimum Distributions

Starting at age 73, you must generally take required minimum distributions from traditional IRAs and most employer plans each year.11Internal Revenue Service. Retirement Topics – Required Minimum Distributions Fall short and the IRS charges a 25% excise tax on the difference between what you should have taken and what you did.12Office of the Law Revision Counsel. 26 U.S.C. 4974 – Excise Tax on Certain Accumulations in Qualified Retirement Plans Catch it and withdraw the shortfall within roughly two years and the penalty drops to 10%. Either way, you still owe income tax on the eventual distribution.

The Costs That Don’t Show Up on the 1099-R

A large taxable distribution can drag other tax lines with it.

Social Security Becomes Taxable

Social Security taxation runs on “combined income,” which is your AGI plus tax-exempt interest plus half your benefits. A taxable 1099-R distribution flows into AGI. Cross $25,000 single or $32,000 joint and up to 50% of your benefits become taxable. Cross $34,000 single or $44,000 joint and up to 85% become taxable.13Social Security Administration. Must I Pay Taxes on Social Security Benefits? A one-time withdrawal can push a retiree who usually pays no Social Security tax into the 85% tier for that year.

Medicare Premiums Two Years Later

Medicare sets your premiums using modified AGI from two years back. In 2026, the standard Part B premium is $202.90 per month. If 2024 income exceeded $103,000 single or $206,000 joint, you pay the Income-Related Monthly Adjustment Amount on top, climbing to $689.90 per month for individuals above $500,000.14Medicare.gov. Medicare Costs Part D carries a similar surcharge structure. A single large distribution can spike your Medicare premiums two years later even if your income drops back.

Net Investment Income Tax

The 3.8% net investment income tax generally does not apply to distributions from qualified plans, traditional IRAs, Roth IRAs, 403(b)s, or 457(b)s. The statute excludes them.15Office of the Law Revision Counsel. 26 U.S.C. 1411 – Imposition of Tax Earnings from a nonqualified annuity are the exception and can be hit with the 3.8% surtax if MAGI exceeds $200,000 single or $250,000 joint. Even where NIIT does not touch the distribution itself, the higher AGI can pull other investment income above the threshold.

Subtract What Was Already Withheld

Before deciding what you owe, look at Box 4 for federal income tax withheld and Box 14 for state. These are credits against your final liability, just like paycheck withholding.

Eligible rollover distributions from employer plans that you do not directly roll over require mandatory 20% federal withholding.9Office of the Law Revision Counsel. 26 U.S.C. 3405 – Special Rules for Pensions, Annuities, and Certain Other Deferred Income For IRA distributions and periodic pension payments, you generally choose the rate or opt out. If you opted out on a large distribution, expect to owe the balance at filing.

The arithmetic: income tax on the distribution, plus the 10% penalty if it applies, minus Box 4. Positive means you owe, negative means a refund. All your withholding for the year pools together on the return before it is compared to total tax.

Watch the underpayment trap. If total withholding and estimated payments come in below 90% of the current year’s tax or 100% of last year’s (whichever is smaller), the IRS charges an underpayment penalty on top of what you owe.16Internal Revenue Service. Topic No. 306, Penalty for Underpayment of Estimated Tax Retirees taking an extra lump sum without adjusting withholding often get caught. You can head it off by requesting higher withholding on the distribution itself or sending a quarterly estimated payment soon after the money hits your account.