Understanding the 2026 Federal Tax Brackets
Every spring, headlines warn that crossing into a new tax bracket will cost you more than the raise itself. It almost never does. The US federal income tax is marginal, which means each bracket only applies to the dollars that fall inside it — not to your entire paycheck. Understanding the difference between a marginal and an effective rate is the single most useful piece of tax literacy an American household can have.
What the 2026 brackets actually look like
For tax year 2025 (returns filed in early 2026), the IRS publishes seven federal brackets that step from 10% up to 37%. Single filers hit the 22% bracket once taxable income passes $48,475; married couples filing jointly don't reach 22% until $96,950. The 37% top rate only applies to taxable income above $626,350 single / $751,600 joint.
- 10% — up to $11,600 single / $23,200 MFJ
- 12% — to $47,150 / $94,300
- 22% — to $100,525 / $201,050
- 24% — to $191,950 / $383,900
- 32% — to $243,725 / $487,450
- 35% — to $609,350 / $731,200
- 37% — above those thresholds
Marginal vs. effective: a worked example
Consider a single filer with $80,000 of taxable income. Their marginal rate is 22% because the last dollar they earn falls in the 22% bracket. But the IRS does not charge 22% on the full $80,000. It charges 10% on the first $11,600, then 12% on the next $35,550, then 22% on the remaining $32,850. The total federal income tax is roughly $13,167 — an effective rate of about 16.5%, not 22%.
A raise that pushes you into a higher bracket only taxes the new dollars at the higher rate. You always keep more after a raise than before it.
Why your paycheck withholding feels different
Employers calculate withholding using IRS Publication 15-T tables and the information on your W-4. The withholding tables are designed to roughly match your annual liability assuming steady pay across 26 paychecks — they don't account for side income, large itemized deductions, or non-wage credits. That's why people who change jobs mid-year or who pick up freelance income often owe a balance in April.
How to use the bracket table in practice
- Subtract the 2025 standard deduction ($15,000 single, $29,200 MFJ, $21,900 HoH) from your gross wages to estimate taxable income.
- Walk that taxable income through the brackets to estimate federal tax owed.
- Compare to your year-to-date federal withholding on your most recent pay stub.
- If the gap is more than $1,000, adjust your W-4 mid-year to avoid an underpayment penalty.
Our IRS Tax Refund Calculator does this walk-through automatically and shows you both the marginal and the effective rate so you can sanity-check what your tax software produces in April.
Common misconceptions
Two myths cost households real money. The first is the belief that a bonus is taxed at a higher rate — bonuses are withheld at a flat 22% supplemental rate, but the actual tax owed is based on your brackets at year-end, and you typically get the over-withholding back as part of your refund. The second is that maxing out a 401(k) always reduces your marginal rate. It only reduces the dollars in your top bracket; if your highest bracket is 12%, an extra $1 of pre-tax 401(k) saves you 12 cents in federal tax, not 22 cents.
Sources: IRS Revenue Procedure 2023-34 (2026 inflation adjustments), IRS Publication 15-T (employer withholding), and IRS Form 1040 instructions for tax year 2025.