What Tax Bracket Are You in When You Retire? The 2026 Bracket Against the Tax on the Next $1,000 of IRA Money

Published 2026-10-28. Tax year 2026 (the return filed in early 2027).

Is your tax bracket in retirement the rate you pay on the next dollar?

Usually a higher rate than the bracket says. For four retirees at 67 drawing $0 to $150,000 from a traditional IRA in 2026, the federal tax on the next $1,000 exceeded the bracket rate by more than two points in 40 of 122 cases (steps whose next $1,000 crosses into the next bracket left aside). A single retiree with $36,000 of Social Security sits in the 12% bracket at $30,000 of IRA money but pays 22.2% on the next dollar, because each IRA dollar also makes Social Security taxable. In the 22% bracket the senior deduction's phase-out takes over: up to 24.6% (couple, 67 and 67, $40,000 of social security, $120,000 of IRA money). In 1 case the return was still in the 0% bracket (no taxable income) and the next $1,000 was taxed anyway. With the state tax on top, the same 12%-bracket retiree pays up to 31.3% on the next dollar (Missouri).

Your own marginal rate: the Social Security tax torpedo calculator
Free: the federal rate on your next IRA dollar with your Social Security, and where the torpedo zone starts and ends.

The four retirees

All four are 67 and on Social Security, and take $0 to $150,000 from a traditional IRA in $5,000 steps (a couple's withdrawals split evenly between the spouses). At each step the bracket is the federal ordinary rate the return's taxable income reaches, read from the 2026 rate schedule; the marginal rate is the federal income tax $1,000 more of IRA money adds, divided by $1,000. Both use the standard deduction, the additional deduction at 65 and the 2026 senior deduction.

Why the next dollar costs more than the bracket

Two rules make one IRA dollar raise taxable income by more than a dollar. Up to 85% of Social Security becomes taxable as other income rises (26 U.S. Code § 86; Publication 915, Social Security and Equivalent Railroad Retirement Benefits): while it is being phased in, each IRA dollar brings part of a dollar of benefits into taxable income with it, and the tables below show what that does to a 12% or 22% bracket. And the 2026 senior deduction shrinks as income rises above its limit (26 U.S. Code § 151), adding to the bracket while it phases out. Once all the taxable Social Security is in and the deduction is gone, the bracket and the rate agree again.

Adding the state: the combined rate in every state

At one IRA amount per household in the 12% federal bracket (S24: $30,000, federal rate 22.2%; S36: $30,000, federal rate 22.2%; M40: $50,000, federal rate 22.2%; M60: $50,000, federal rate 22.2%), the state income tax the same $1,000 adds, and the combined federal and state rate. 21 jurisdictions add nothing for any of the four (Alaska, Connecticut, Florida, Georgia, Illinois, Iowa, Kentucky, Maine, Michigan, Mississippi, Nevada, New Hampshire, New Jersey, North Dakota, Pennsylvania, South Dakota, Tennessee, Texas, Washington, Wisconsin, Wyoming). Some states tax Social Security themselves, so there too the next IRA dollar can raise the state tax by more than the state's own rate.

Your own household in every state: your retirement tax in every state.

Related: Is Social Security taxable in 2026 · The 2026 senior deduction, decomposed · Municipal bonds and the tax torpedo · 2026 tax brackets · Your retirement tax in every state

Download the data

Every case on this page, with its inputs: retirement-tax-bracket-vs-marginal-rate-2026.csv (the 204 household-state cases) · retirement-tax-bracket-vs-marginal-rate-2026.json (CC0, with the 124-row federal grid). Dollar amounts in USD a year; rates as fractions.

Questions

What tax bracket am I in when I retire?

The bracket is set by taxable income after deductions, but a retiree on Social Security often pays more than the bracket on the next dollar. A single retiree at 67 with $36,000 of Social Security and $30,000 of IRA withdrawals was in the 12% bracket in 2026 and paid 22.2% federal tax on the next $1,000.

Why is my marginal tax rate higher than my tax bracket in retirement?

Because the next IRA dollar also makes part of your Social Security taxable, and in 2026 can reduce the senior deduction. Taxable income then rises by more than the dollar withdrawn.

What marginal rate does a retiree pay in the 22% bracket?

Up to 24.6% federal in this study (Couple, 67 and 67, $40,000 of Social Security, at $120,000 of IRA withdrawals), where the 2026 senior deduction is phasing out; before IRMAA and any state tax. The highest rate in any bracket was 25.4%, in the 24% bracket.

Can I owe tax on an IRA withdrawal in the 0% bracket?

Yes. In 1 case here the return had no taxable income yet the next $1,000 was taxed, because it pulled Social Security and itself over the deductions at once.

What is the marginal tax rate for a retired couple in the 12% bracket?

For a couple at 67 with $60,000 of Social Security and $50,000 of IRA withdrawals, 22.2% federal on the next $1,000. Once all the taxable part of their benefits is in, from $70,000 of withdrawals, the rate is the bracket's 12% again.

Which states add the most to a retiree's marginal rate?

For the single retiree with $36,000 of Social Security and $30,000 of IRA money, Missouri (combined 31.3%). For a couple at 67 with $60,000 of benefits and $50,000 of IRA money, Montana (30.9%).

Method and sources

Every figure was computed by QuantCalc's open tax engines (federal 2.5.1, state 1.21.2) through the household module the free tax torpedo calculator and state income tax calculator run, then recomputed by the C engines behind the federal and state tax APIs from independently written requests, agreeing to the cent; the bracket is the engine's own 2026 rate schedule (2026 tax brackets). Each state's rules and their official sources are documented in the state tax engine documentation; the federal sources:

• 26 U.S. Code § 86
• Publication 915, Social Security and Equivalent Railroad Retirement Benefits
• 26 U.S. Code § 151
• Rev. Proc. 2025-32: 2026 inflation-adjusted items (incl. One Big Beautiful Bill amendments)

What is not modelled

• The Indiana and Maryland figures include the county income tax every county there levies, on the state return, at a default county rate: Indiana at 1.75% (county rates); Maryland at 3.12% (county rates). A resident pays their own county's rate. Other local income taxes (city and school-district taxes, and county taxes in other states) are not included (see local income tax on retirement income).
• The rate is measured on the next $1,000; at a bracket edge the $1,000 can straddle two brackets.
• The Medicare IRMAA surcharge is left out of the rate: it is a cliff, not a rate, and a single dollar over a tier can cost hundreds (see one dollar over an IRMAA tier).
• Long-term gains and qualified dividends stacked on top would be pushed into the 15% rate by the same mechanism; these retirees have none.
• Everyone is 67 with the standard deduction. Couples' withdrawals are split evenly between the spouses.
• The households are illustrations, not averages.

An estimate, not tax advice. These are computed examples for the 2026 tax year from QuantCalc's open tax engines (federal 2.5.1, state 1.21.2). Your own return depends on facts these examples do not include. Check any decision with your tax preparer before acting.

@misc{quantcalc2026yourtaxbracketinretirementvstherateonyou,
  title  = {Your Tax Bracket in Retirement vs the Rate on Your Next IRA Dollar (2026): Four Retirees, Federal and Every State},
  author = {{QuantCalc Research}},
  year   = {2026},
  url    = {https://quantcalc.app/research/retirement-tax-bracket-vs-marginal-rate-2026/},
  note   = {Accessed <date>}
}