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Understanding Federal Tax Brackets
The U.S. federal income tax system is progressive, meaning different portions of your income are taxed at different rates. For 2024, there are seven brackets ranging from 10% to 37%. Only the income within each bracket is taxed at that bracket's rate — not your entire income. This is why your effective (average) tax rate is always lower than your marginal (top) bracket rate.
Marginal vs Effective Tax Rate
Your marginal tax rate is the rate applied to your last dollar of income — the bracket you fall into. Your effective tax rate is the total tax owed divided by your total taxable income, representing the average rate across all brackets. For example, a single filer earning $75,000 has a 22% marginal rate but an effective rate of about 14.5%.
Frequently Asked Questions
For single filers in 2024: 10% on income up to $11,600; 12% on $11,601-$47,150; 22% on $47,151-$100,525; 24% on $100,526-$191,950; 32% on $191,951-$243,725; 35% on $243,726-$609,350; and 37% on income over $609,350. Brackets differ for other filing statuses.
No. Only the portion of income within each bracket is taxed at that rate. If you are in the 22% bracket, only the income above the 12% bracket threshold (and below the 24% threshold) is taxed at 22%. Lower portions are taxed at 10% and 12%.
Filing status changes the income thresholds for each bracket. Married filing jointly has roughly double the bracket widths of single filers, which can reduce the overall tax burden. Head of household offers wider brackets than single but narrower than married jointly.
No. Taxable income is your gross income minus adjustments, deductions (standard or itemized), and exemptions. For 2024, the standard deduction is $14,600 for single filers and $29,200 for married filing jointly. Your taxable income is the figure used to calculate tax owed.