For the 2026 tax year, the highest federal income tax bracket starts at $640,601 in taxable income for single filers and $768,701 for married couples filing jointly. Income above those thresholds is taxed at 37 percent, the top statutory rate on ordinary income. That rate had been set to rise to 39.6 percent in 2026 when the Tax Cuts and Jobs Act expired, but Congress made the 37 percent rate permanent through the One, Big, Beautiful Bill Act signed into law in 2025.1Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026, Including Amendments From the One, Big, Beautiful Bill
2026 Thresholds by Filing Status
The income level where the 37 percent rate takes effect depends on how you file. The IRS adjusts these thresholds each year for inflation. For 2026, the top bracket begins at these taxable income amounts:1Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026, Including Amendments From the One, Big, Beautiful Bill
- Single: above $640,600
- Married filing jointly: above $768,700
- Married filing separately: above $384,350
- Head of household: above $640,600
In 2025, single filers hit the top bracket at $626,351 and joint filers at $751,601.2Internal Revenue Service. Federal Income Tax Rates and Brackets The upward drift means you can earn roughly $14,000 to $17,000 more in 2026 before any of your income reaches the top rate.
How the 37 Percent Rate Actually Applies
Crossing into the top bracket does not mean 37 cents of every dollar you earned goes to federal tax. The system is graduated. Your income fills the lower-rate brackets first, and only the portion above $640,600 (single) or $768,700 (joint) is taxed at 37 percent.
Here is the full 2026 bracket ladder for a single filer:1Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026, Including Amendments From the One, Big, Beautiful Bill
- 10 percent: $0 to $12,400
- 12 percent: $12,401 to $50,400
- 22 percent: $50,401 to $105,700
- 24 percent: $105,701 to $201,775
- 32 percent: $201,776 to $256,225
- 35 percent: $256,226 to $640,600
- 37 percent: $640,601 and above
A single filer with $700,000 in taxable income pays 37 percent on only $59,400 of it. Everything below that line is taxed at the lower rates. Your effective rate, meaning total federal income tax divided by total taxable income, comes in well below 37 percent even after you cross the threshold.
Taxable Income Is Not Gross Income
The number that determines your bracket is taxable income, not what shows up on your paycheck or your business’s top line. Taxable income is what remains after subtracting either the standard deduction or your itemized deductions.
For 2026, the standard deduction is $16,100 for single filers, $32,200 for married couples filing jointly, $16,100 for married filing separately, and $24,150 for heads of household.1Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026, Including Amendments From the One, Big, Beautiful Bill A single filer taking the standard deduction would need roughly $657,000 in gross income before their taxable income crosses into the top bracket.
Wages, salaries, bonuses, commissions, tips, business income, rental income, interest, and short-term capital gains on assets held one year or less all count as ordinary income and are taxed at the graduated rates above.3Internal Revenue Service. Topic No. 409, Capital Gains and Losses
Long-Term Capital Gains Follow a Different Ladder
Gains on assets held longer than a year are taxed on a separate schedule, with rates of 0, 15, or 20 percent for most taxpayers. The 20 percent tier is the one top earners care about: for 2026, it applies to single filers with taxable income above $545,500 and joint filers above $613,700.
Holding an investment at least a year and a day before selling can mean paying 20 percent on the gain instead of 37 percent. On a large gain the difference is substantial. The 3.8 percent Net Investment Income Tax discussed below usually applies on top, producing a combined 23.8 percent federal rate for high earners.
Surtaxes That Stack on Top
Reaching the top bracket does not cap your federal tax exposure. Two additional taxes hit high earners.
Net Investment Income Tax
A 3.8 percent surtax applies to the lesser of your net investment income or the amount by which your modified adjusted gross income exceeds a fixed threshold. That threshold is $200,000 for single filers and $250,000 for married couples filing jointly.4Office of the Law Revision Counsel. 26 U.S. Code 1411 – Imposition of Tax Investment income for this purpose includes capital gains, dividends, interest, rental income, and royalties.
These dollar thresholds have been $200,000 and $250,000 since 2013 and are not indexed for inflation.5Internal Revenue Service. Questions and Answers on the Net Investment Income Tax
Additional Medicare Tax
An extra 0.9 percent Medicare tax applies to wages and self-employment income above $200,000 for single filers, $250,000 for joint filers, and $125,000 for married individuals filing separately.6Office of the Law Revision Counsel. 26 U.S.C. 3101 – Rate of Tax These thresholds are also not indexed.
Add the 37 percent income tax, the 3.8 percent NIIT on investment income, and the 0.9 percent Additional Medicare Tax on wages, and parts of a high earner’s income can face a combined federal rate above 40 percent before state tax enters the picture.
Alternative Minimum Tax
The AMT is a parallel calculation designed to keep high-income taxpayers from using deductions and credits to shrink their bill below a floor. You calculate your tax under the regular rules and again under AMT rules, and you pay whichever is higher.
For 2026, the AMT exemption is $90,100 for single filers and $140,200 for joint filers.1Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026, Including Amendments From the One, Big, Beautiful Bill The exemption begins to phase out at $500,000 of AMT income for single filers and $1,000,000 for joint filers. AMT itself uses two rates, 26 percent and 28 percent.
The AMT most often catches taxpayers who exercise incentive stock options, claim large state and local tax deductions, or realize significant long-term capital gains. If you are already paying close to the top regular rate, the AMT is less likely to raise your bill, because your regular liability is already high.
Qualified Business Income Deduction Phase-Out
Self-employed people and owners of pass-through businesses (S corporations, partnerships, sole proprietorships) can deduct up to 20 percent of qualified business income under Section 199A. Congress made this deduction permanent through the One, Big, Beautiful Bill Act.
The deduction starts phasing out at $201,750 in taxable income for single filers and $403,500 for joint filers in 2026. Above those levels, the deduction shrinks based on business type, wages paid, and property held. Owners of specified service businesses (law, medicine, consulting, and similar fields) lose the deduction entirely at $276,750 of taxable income for single filers or $553,500 for joint filers. If your pass-through income is pushing you toward the top bracket, losing this deduction effectively raises your rate on the income that lands there.
State Taxes on Top of Federal
The 37 percent rate is only the federal layer. Most states impose their own income tax, with top rates ranging from zero in no-tax states to around 13 percent in the highest-tax states. A top earner in a high-tax state can face a combined marginal rate above 50 percent on the last dollar of ordinary income once federal rates, state rates, and surtaxes are stacked.
The federal deduction for state and local taxes paid is capped at $10,000 for most filers. For someone paying six figures in state income tax, that cap means most of the state bill comes straight out of pocket without reducing the federal taxable income that reaches the top bracket.