A common myth is that moving into a higher tax bracket means all of your income gets taxed at that higher rate. In reality, the U.S. federal income tax is progressive, so your income is sliced into layers and each layer is taxed at its own rate. Understanding this stops you from fearing a raise and helps you estimate your real tax bill.
Income is taxed in layers
The federal system uses seven brackets, currently 10%, 12%, 22%, 24%, 32%, 35%, and 37%. Each rate applies only to the dollars that fall inside that bracket's range, not to your entire income. So if you are single and the 22% bracket starts around $48,000, only the dollars above that threshold are taxed at 22% — everything below is still taxed at 10% and 12%. This layering is why your top rate is almost never your average rate.
Taxable income, not gross income
Brackets apply to your taxable income, which is your total income minus adjustments and either the standard deduction or itemized deductions. Someone earning $70,000 in salary does not pay tax on all $70,000; they subtract the standard deduction first. This means your first several thousand dollars of income are effectively taxed at 0%. Taxable income is usually much lower than the gross figure on your offer letter.
Brackets depend on filing status
Each filing status — single, married filing jointly, married filing separately, and head of household — has its own set of bracket thresholds. Married-filing-jointly brackets are generally about double the single brackets in the lower ranges. The IRS adjusts every threshold upward each year for inflation, which is why the exact dollar cutoffs change annually. Always check the current year's table before doing precise math.
A raise never lowers your take-home pay
Because only the income inside a higher bracket is taxed at the higher rate, earning one more dollar can never leave you with less money after tax. A raise that pushes you from the 22% into the 24% bracket only taxes the portion above the threshold at 24%. The rest of your income is untouched. The fear of being bumped into a higher bracket is based on a misunderstanding of how the layers work.
Suppose a single filer has $60,000 of taxable income in 2025. The first roughly $11,900 is taxed at 10%, the income from there to about $48,000 at 12%, and only the last chunk above $48,000 at 22%. The result is a total tax far below $60,000 times 22%, illustrating why the effective rate is much lower than the top bracket.
Key takeaways
- Federal income tax is progressive: each bracket rate applies only to the income within that bracket's range.
- Your top marginal rate is not the rate you pay on your whole income.
- Brackets apply to taxable income, after deductions, not gross income.
- Thresholds differ by filing status and are inflation-adjusted every year.
- Moving into a higher bracket never reduces your total take-home pay.
Common mistakes
- Believing a raise into a new bracket taxes all your income at the higher rate.
- Applying your top bracket rate to your entire income when estimating taxes.
- Forgetting to subtract the standard deduction before applying brackets.
FAQ
Does a bonus get taxed at a higher rate?
A bonus is often withheld at a flat supplemental rate, but at tax time it is simply added to your income and taxed at your normal bracket rates. Any over-withholding comes back as part of your refund.
How many federal tax brackets are there?
There are currently seven federal income tax brackets, ranging from 10% to 37%.