2027 Tax Brackets: Thresholds Projected to Rise 3.2% — Standard Deduction $16,600 Single, $33,200 for Couples

Your 2027 tax brackets are projected to rise about 3.2%, with the standard deduction climbing to $16,600 for single filers and $33,200 for married couples filing jointly, according to Bloomberg Tax projections. The IRS has not published the official 2027 figures yet — they are expected in late October or early November — but the estimates give workers and retirees a head start on planning. Here is what is projected, what is already official, and how much less you might owe.

Key Facts

• Projected standard deduction 2027: $16,600 single (up from $16,100), $33,200 married filing jointly (up from $32,200), per Bloomberg Tax
• Projected bracket shift: all seven thresholds rise about 3.2%; the 10% bracket for singles widens to the first $12,800 of taxable income, from $12,400
• Example saving: a single filer earning $100,000 would owe about $281 less in 2027 than under the 2026 schedule
• Official status: the IRS had still not released the 2027 revenue procedure as of October 20 — every bracket figure for 2027 is currently a projection
• Already official for 2027: HSA limits of $4,500 (self-only) and $9,000 (family), a SALT deduction cap of $40,804, and a Social Security wage base of $192,300
• Rates unchanged: the seven rates — 10% through 37% — were made permanent by the One Big Beautiful Bill Act signed July 4, 2025

What are the projected 2027 tax brackets?

Bloomberg Tax projects the IRS will lift every bracket threshold by roughly 3.2% for tax year 2027, a bigger adjustment than the roughly 2.7% applied for 2026. For single filers, the standard deduction is projected at $16,600 and the 10% rate would apply to the first $12,800 of taxable income, up from $12,400. For married couples filing jointly, the 12% bracket is projected to run from $25,601 to $104,050 of taxable income — the top of that band rises $3,250 from $100,800 in 2026 — under a projected standard deduction of $33,200. Heads of household start from a 2026 deduction of $24,150 and would see a similar percentage increase.

How much less tax would you actually pay?

The savings are real but modest, because the adjustment is designed to stop inflation — not tax rates — from changing your bill. On a $60,000 salary, a single filer taking the standard deduction would see taxable income fall to $43,400 from $43,900, and the projected total tax drops to $4,952. A married couple earning $60,000 combined would save about $136, paying $2,704 instead of $2,840. At $100,000 of gross pay, a single filer's bill falls by about $281 across the year — roughly $11 per biweekly paycheck. Note the catch: if your 2027 raise matches inflation, your dollar tax bill still rises; the adjustment only keeps your effective rate roughly steady.

Why hasn't the IRS published the official numbers?

The IRS normally announces the inflation-adjusted figures each fall — its last two releases came on October 9 and October 22 — but as of October 20 its official table of inflation-adjusted items still ended at tax year 2026, and no 2027 revenue procedure had appeared. Projection firms such as Bloomberg Tax, Thomson Reuters Checkpoint and Wolters Kluwer all expect the announcement in late October or early November. Until it lands, treat every 2027 bracket number — including the ones above — as a well-informed estimate, not an IRS figure.

Which 2027 tax numbers are already official?

Quite a few. The IRS has already set 2027 HSA contribution limits at $4,500 for self-only coverage and $9,000 for family coverage, with HDHP minimum deductibles of $1,750 and $3,500. The state and local tax (SALT) deduction cap rises on schedule to $40,804. The Social Security Administration has set the 2027 wage base at $192,300, and the already-announced 3.6% Social Security COLA takes effect in January. The current official baseline — tax year 2026, from IRS Revenue Procedure 2025-32 — has a standard deduction of $16,100 single, $32,200 joint and $24,150 head of household, with the top 37% rate starting above $640,600 for singles and $768,700 for joint filers.

Frequently Asked Questions

Are the 2027 tax brackets official yet?

No. As of October 20, 2026, the IRS has not published the 2027 brackets or standard deduction. The figures in this article are projections from Bloomberg Tax and other professional forecasters, clearly labeled as estimates until the IRS issues its revenue procedure.

When will the IRS announce the 2027 tax brackets?

Based on the pattern of the last two years — announcements on October 9 and October 22 — forecasters expect the release in late October or early November 2026.

Do the 2027 changes affect the taxes I file in early 2027?

No. The return you file in early 2027 covers tax year 2026 and uses the 2026 brackets and the $16,100/$32,200 standard deductions. The 2027 figures apply to income earned during 2027 and the return filed in 2028.

Projected figures are estimates from Bloomberg Tax and may differ from the final IRS announcement. This article is information only, not tax advice.