Tax Bracket Explainer
Moving into a higher bracket does not tax all your income at the higher rate. Only the part above the threshold is. This shows where every dollar of yours actually lands.
Where each dollar is taxed
| Bracket | Rate | Your income in it | Tax on that slice |
|---|
How this is calculated
How progressive tax actually works
The most common misunderstanding about income tax is that moving into a higher bracket taxes all your income at the higher rate. It does not. Only the slice above the threshold is taxed at the new rate.
This is why a raise essentially never leaves you worse off. You keep less of the portion above the threshold, but you still keep most of it, and everything below the threshold is taxed exactly as before.
Two rates matter, and they are not the same number:
marginal rate = the rate on your next dollar
effective rate = total tax ÷ total income
The effective rate is always lower, because your first dollars are taxed at the lowest rates. When someone says "I'm in the 24% bracket", their effective rate is usually closer to 15%.
Worked example. $75,000 single, less the $15,000 standard deduction, is $60,000 taxable: 10% on the first $11,925, 12% up to $48,475, and 22% on the remainder. The marginal rate is 22%, but the effective rate on the full $75,000 is around 11%.
Educational content only, not financial advice. Consult a qualified professional before making financial decisions.