2027 Tax Brackets: $16,600 Standard Deduction, $25,500 401(k)

Checked Thursday, Nov. 12, 2026. The Internal Revenue Service released the 2027 tax brackets on Nov. 5 and the 2027 401(k) and IRA limits on Nov. 12.

On Thursday, Nov. 5, 2026, the Internal Revenue Service (IRS) released the tax-year 2027 inflation adjustments in news release IR-2026-133 and Revenue Procedure 2026-35. The 2027 standard deduction is $16,600 for single filers and $33,200 for married couples filing jointly, and the top rate stays 37%. The release says the 2027 figures generally apply to tax returns filed in 2028, so the return due in April 2027 still uses the 2026 numbers below. The 2027 401(k), 403(b) and individual retirement account (IRA) limits came out separately on Thursday, Nov. 12, 2026, in IR-2026-136: $25,500 for 401(k) deferrals and $7,500 for IRAs.

We use only official figures here. The amounts below come from IRS revenue procedures and notices and from the Social Security Administration (SSA). We do not publish third-party projections.

Which 2027 figures are official?

2027 figure	Status
Tax brackets	Official (IR-2026-133, Rev. Proc. 2026-35, Nov. 5, 2026)
Standard deduction	Official (IR-2026-133, Nov. 5, 2026)
Estate and gift tax exclusion	Official (IR-2026-133, Nov. 5, 2026)
Health Savings Account limits	Official (Rev. Proc. 2026-24)
Social Security cost-of-living adjustment and taxable maximum	Official (SSA, Oct. 14, 2026)
401(k), 403(b) and IRA contribution limits and catch-up amounts	Official (IR-2026-136, Notice 2026-66, Nov. 12, 2026)
Start of 2027 filing season	Not yet announced

The IRS published the 2026 retirement-plan limits in a news release and Notice 2025-67 on Nov. 13, 2025.

2027 tax brackets

These rates are from Revenue Procedure 2026-35 for tax year 2027. Taxable income above each threshold is taxed at that rate.

Rate	Single, over	Married filing jointly, over	Head of household, over
10%	$0	$0	$0
12%	$12,800	$25,600	$18,250
22%	$52,025	$104,050	$69,650
24%	$109,125	$218,250	$109,100
32%	$208,325	$416,650	$208,300
35%	$264,550	$529,100	$264,550
37%	$661,375	$793,650	$661,350

The 10% rate applies up to $12,800 for single filers, up to $25,600 for married couples filing jointly and up to $18,250 for heads of household.

2027 standard deduction and other limits

Filing status	2026 standard deduction	2027 standard deduction
Single	$16,100	$16,600
Married filing jointly	$32,200	$33,200
Head of household	$24,150	$24,925
Married filing separately	$16,100	$16,600

The married-filing-jointly deduction rises $1,000 from 2026. IR-2026-133 also sets these 2027 amounts:

2027 item	Amount
Child Tax Credit, maximum	$2,300 (up $100 from 2026)
Child Tax Credit, refundable portion	Up to $1,800 (up $100)
Earned Income Tax Credit, three or more qualifying children	$8,496 (2026: $8,231)
Alternative Minimum Tax exemption, unmarried	$93,000, phase-out starts at $515,950
Alternative Minimum Tax exemption, married filing jointly	$144,700, phase-out starts at $1,031,900
Estate tax basic exclusion	$15,480,000 (2026: $15,000,000)
Annual gift exclusion (2027 gift tax exclusion and Form 709 dates)	$20,000 (2026: $19,000)
Health flexible spending arrangement salary-reduction limit	$3,500 (up $100); carryover maximum $700 (up $20)
Qualified transportation fringe and parking	$350 a month (up $10)

2027 Health Savings Account limits (official)

The IRS sets Health Savings Account limits earlier than the rest, in a spring revenue procedure. Revenue Procedure 2026-24, published in Internal Revenue Bulletin 2026-25 on June 15, 2026, sets the 2027 amounts.

Health Savings Account item	2027	2026
Contribution limit, self-only	$4,500	$4,400
Contribution limit, family	$9,000	$8,750
Catch-up, age 55 and older	$1,000	$1,000
High-deductible plan out-of-pocket max, self-only	$8,700	not listed here
High-deductible plan out-of-pocket max, family	$17,400	not listed here
Excepted-benefit health reimbursement arrangement max	$2,250	not listed here

The age-55 catch-up amount is fixed by statute at $1,000, so it does not change with inflation. An out-of-pocket maximum applies to a high-deductible health plan (HDHP) that pairs with a Health Savings Account.

2027 Social Security changes (official)

The Social Security Administration released its 2027 fact sheet on Oct. 14, 2026.

Social Security item	2027	2026
Cost-of-living adjustment (COLA)	3.6%	n/a
Taxable maximum (wages subject to the tax)	$192,300	$184,500
Earnings test, under full retirement age	$25,560 per year	n/a
Earnings test, year reaching full retirement age	$67,920	n/a

Below full retirement age, the Social Security Administration withholds $1 in benefits for every $2 earned above $25,560 in 2027. In the year a worker reaches full retirement age (FRA), it withholds $1 for every $3 above $67,920, counting only earnings before the birthday month. The Social Security payroll tax rate stays at 6.2% each for the employee and the employer. Our Social Security cost-of-living adjustment report has the 2027 payment dates.

2026 tax brackets for the April 2027 return

The tax-year 2026 brackets from Revenue Procedure 2025-32 apply to income earned in 2026, on the return due in April 2027.

Rate	Single, taxable income up to	Married filing jointly, up to
10%	$12,400	$24,800
12%	$50,400	$100,800
22%	$105,700	$211,400
24%	$201,775	$403,550
32%	$256,225	$512,450
35%	$640,600	$768,700
37%	above $640,600	above $768,700

2026 additional standard deduction

The additional standard deduction for taxpayers who are 65 or older or blind is $1,650 each for married filers and $2,050 each for single filers and heads of household in 2026. The 2027 versions of these amounts are not in the figures we have confirmed.

2027 401(k) and IRA limits vs 2026

The IRS announced the 2027 limits on Nov. 12, 2026 in news release IR-2026-136, which cites Notice 2026-66. The 2026 limits are from Notice 2025-67, published Nov. 13, 2025. The 401(k) limit also covers 403(b) plans, governmental 457 plans and the federal Thrift Savings Plan (TSP).

Retirement-plan limit	2027	2026
401(k), 403(b), governmental 457 and TSP employee deferral	$25,500	$24,500
Catch-up, age 50 and older	$8,500	$8,000
Catch-up, ages 60 to 63	$11,750	$11,250
Savings Incentive Match Plan for Employees (SIMPLE) deferral	$17,500	$17,000
SIMPLE plan deferral, applicable plans	$19,100	$18,100
Individual retirement account (IRA) contribution	$7,500	$7,500
IRA catch-up, age 50 and older	$1,100	$1,100

A worker aged 50 to 59 or 64 and older can defer up to $34,000 in 2027 ($25,500 plus $8,500). The SIMPLE catch-up stays $4,000 ($3,850 for applicable plans), and the SIMPLE catch-up for ages 60 to 63 stays $5,250. The IRA catch-up stays $1,100.

IRA income phase-outs for 2027 rise as well:

IRA phase-out (adjusted gross income)	2027	2026
Traditional IRA deduction, single, covered by a workplace plan	$83,000 to $93,000	$81,000 to $91,000
Traditional IRA deduction, married filing jointly, contributing spouse covered	$133,000 to $153,000	$129,000 to $149,000
Traditional IRA deduction, not covered but married to a covered spouse	$250,000 to $260,000	$242,000 to $252,000
Roth IRA, single and head of household	$158,000 to $173,000	$153,000 to $168,000
Roth IRA, married filing jointly	$250,000 to $260,000	$242,000 to $252,000

For married filing separately, both the traditional deduction (covered by a workplace plan) and the Roth IRA range stay $0 to $10,000.

Key dates

Date	Day	What happens	Days from today
Jan. 15, 2027	Friday	Fourth-quarter 2026 estimated tax payment due	-
Apr. 15, 2027	Thursday	2026 federal tax return filing deadline	-

The IRS has not announced when it will begin accepting 2027 returns. Our 2027 tax calendar tracks the filing deadlines as they are set.

Print the confirmed 2027 limits

Our free printable lists the confirmed 2027 standard deduction, 401(k) and IRA, Health Savings Account and Social Security figures and the key dates on one page. Pair it with a 2027 yearly calendar, a January 2027 calendar for the Jan. 15 estimated-tax date, or an April 2027 calendar for the filing deadline. For retirees, the Medicare open enrollment guide covers the December deadline.