How Federal Tax Brackets Work (2026)

The short version

The U.S. federal income tax is progressive: income is taxed in slices, and each slice gets its own rate. For 2026 there are seven slices — 10%, 12%, 22%, 24%, 32%, 35%, and 37% — set by the IRS in Revenue Procedure 2025-32. Each rate applies only to the income inside its slice. Your “tax bracket” is simply the slice your last dollar of taxable income landed in. It is not the rate you pay on everything.

The bucket analogy: how marginal rates actually work

Picture seven buckets in a row. Your taxable income pours into the first bucket until it is full, then spills into the next. For a single filer in 2026: the first $12,400 fills the 10% bucket ($1,240 of tax). The next $38,000 — income from $12,400 to $50,400 — fills the 12% bucket ($4,560). Then $50,400–$105,700 at 22%, and so on up to 37% above $640,600.

Two consequences matter. First, everyone fills the same cheap buckets: a billionaire’s first $12,400 is taxed at 10%, exactly like yours. Second, two people “in the 22% bracket” can pay very different overall rates — someone at $51,000 of taxable income barely touches the 22% bucket, while someone at $105,000 fills it nearly full.

The 2026 numbers at a glance

Single filers: 10% to $12,400; 12% to $50,400; 22% to $105,700; 24% to $201,775; 32% to $256,225; 35% to $640,600; 37% above. Married filing jointly gets roughly double the thresholds ($24,800 / $100,800 / $211,400 / $403,550 / $512,450 / $768,700); head of household sits in between. These are the official IRS figures, and the One Big Beautiful Bill Act made the rate structure permanent — no sunset to plan around. Every bracket for every filing status is on the 2026 federal tax brackets chart.

Worked example: single filer, $100,000 of taxable income

Fill the buckets from the bottom: 10% × $12,400 = $1,240. 12% × $38,000 = $4,560. 22% × $49,600 (the income from $50,400 to $100,000) = $10,912. Total federal income tax: $16,712.

The wrong way — taxing the whole $100,000 at 22% — gives $22,000, overstating the bill by $5,288. That is the price of the most common tax myth in America.

Marginal vs. effective: the two numbers that matter

Your marginal rate (22% in the example) is the rate on your next dollar. Your effective rate ($16,712 ÷ $100,000 = 16.7%) is the blended rate you actually paid — always lower, because most of your income was taxed in cheaper buckets.

Each answers a different question. “How much of my raise do I keep?” → marginal rate: a $5,000 raise at 22% keeps $3,900. “What is my overall burden?” → effective rate. “Should I do a $10,000 Roth conversion?” → marginal rate: about $2,200 of extra tax. Mixing them up is how people under-withhold on bonuses and second jobs — the bonus is taxed at your marginal rate, not your average one.

The raise myth: you can’t earn your way into a pay cut

“Don’t take the raise — you’ll end up poorer” is mathematically impossible under marginal rates. Take a single filer at $105,700 of taxable income (the top of the 22% bracket) who earns $1,000 more. Only that $1,000 is taxed at 24% — $240 of tax, $760 kept. After-tax income rises. A raise always leaves you with more. (The fine print: phaseouts of certain credits and deductions can occasionally push true marginal rates higher, but the bracket itself never punishes earning more.)

Don’t forget the standard deduction

Brackets apply to taxable income — what is left after deductions. For 2026 the standard deduction is $16,100 (single), $32,200 (joint), $24,150 (head of household). A $100,000 salary with the single standard deduction is $83,900 of taxable income, which drops the tax from $16,712 to about $13,138. The deduction also comes off the top — from your most expensive bucket first — which is why it can keep you in a lower bracket entirely.

The bottom line: only the income inside a bracket pays that bracket’s rate; your marginal rate drives decisions while your effective rate describes your burden; and a raise always pays. Run your own numbers on the 2026 federal tax brackets chart.