The Internal Revenue Service has not released its 2027 inflation adjustments, the yearly announcement that sets next year’s tax brackets and standard deduction. The agency’s newsroom lists no release of the 2027 figures, and none for the 2027 401(k) or IRA limits, as of Oct. 30, 2026. A year earlier the IRS had published the 2026 numbers on Oct. 9, 2025.
That leaves the 2027 standard deduction, the 2027 bracket thresholds and the 2027 401(k) limit without an official amount. Any 2027 figure in circulation before the IRS acts is an estimate, not an agency number.
Anyone setting 2027 paycheck withholding, sizing a Roth conversion or choosing a January 401(k) contribution is working without the new thresholds. For those readers the question is which numbers are final and which are still pending.
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What did the IRS announce on Oct. 9, 2025?
The 2026 adjustments came in news release IR-2025-103, with details in Revenue Procedure 2025-32. The IRS said the adjustments cover more than 60 tax provisions, and it set the 2026 standard deduction at $16,100 for single filers and married people filing separately, $32,200 for married couples filing jointly and $24,150 for heads of household.
The 37% bracket for 2026 starts above $640,600 for single filers and $768,700 for joint filers, according to the same release. The alternative minimum tax exemption is $90,100 for unmarried individuals and $140,200 for joint filers, and the estate tax exclusion is $15,000,000 for people who die in 2026.
The IRS also said the 2026 adjustments generally apply to tax returns filed in 2027. That is why the 2027 numbers matter to anyone planning ahead: they will govern the return filed in 2028 and the paycheck withholding in between.
Why did the 401(k) limit arrive five weeks later?
Retirement plan limits are not part of the tax-bracket release. The IRS announced the 2026 plan limits separately on Nov. 13, 2025, in news release IR-2025-111 and Notice 2025-67, 35 days after the brackets.
The 401(k), 403(b), governmental 457 and Thrift Savings Plan limit rose to $24,500 for 2026 from $23,500. The IRA limit rose to $7,500 from $7,000, and the catch-up amount for people 50 and older in a 401(k) went to $8,000 from $7,500, for a total of $32,500.
The same notice kept the catch-up for ages 60 through 63 at $11,250 and raised the IRA catch-up to $1,100 from $1,000. Looking at last year’s calendar, the 401(k) number had not been announced on Oct. 30, 2025 either, so its absence now is not yet a delay by that measure.
Which 2026 figures are still in force?
Every 2026 amount stays in effect for tax year 2026. The $24,500 401(k) limit, the $7,500 IRA limit and the $16,100 single standard deduction apply to contributions and returns for this year, and the IRS has not changed them.
The Roth IRA income phase-out for 2026 runs from $153,000 to $168,000 for single filers and heads of household and from $242,000 to $252,000 for joint filers, the plan-limits release says. The Saver’s Credit income cap is $80,500 for joint filers, $60,375 for heads of household and $40,250 for single filers.
A 2026 amount used as a stand-in for 2027 is only a stand-in. The IRS has not said whether any 2027 figure will rise by a little or a lot, and the agency’s own announcement is the only place the final amounts will appear.
Where will the 2027 numbers show up first?
Based on last year’s pattern, the first notice should be the tax-bracket release on the IRS newsroom, followed by a separate retirement plan limits release. Both are posted to the IRS newsroom, which also carries the agency’s other news releases for the week.
Until then, the newsroom’s most recent items run through Oct. 29, 2026, and none of them carries the new thresholds. Readers who rely on a payroll department or a plan administrator can ask when that office will switch to the 2027 limits once they are published.
What should 2027 plans rest on until the IRS publishes the new figures?
Only the 2026 amounts are official today.
Retirees who set a 2027 withholding amount, a gift or a Roth conversion off a 2026 figure may have to redo it when the IRS finally publishes. The stake is a plan built on numbers that are about to change.
“Cut Your Retirement Tax Bill: 12 Moves” is a 14-page guide that puts the 2026 numbers on one page and works out how much of a retiree’s Social Security is taxed on a single worksheet. It shows each income line that sets a retiree’s tax bill, so a new 2027 figure can be dropped in beside the 2026 one.
One of its pages covers the Medicare surcharge line, where one dollar over can cost more than $1,100 a year per person.
Get the 2026 numbers on one page in Cut Your Retirement Tax Bill: 12 Moves →
This article was produced with AI assistance and edited for accuracy against the sources linked above.
David M. Keller is a finance writer based in Columbus, Ohio, covering personal finance and consumer-focused economic topics. He earned his degree in journalism from Ohio University and began his career reporting on local business and economic trends for a regional media outlet. Since then, he has contributed to a variety of online publications, focusing on clear, practical coverage of topics such as cost of living, debt, and everyday financial decision-making.
