Find your federal tax bracket and see exactly how much you owe
The US uses a progressive tax system where different portions of income are taxed at different rates. A $100,000 earner in the 22% bracket does NOT pay 22% on all income. They pay 10% on the first $11,600, 12% on the next $35,550 and 22% only on the remainder. Their effective rate is approximately 15.7% — not 22%.
Your marginal tax rate is the rate on your last dollar of income and determines which bracket you are in. Your effective tax rate is the actual percentage of total income paid in federal taxes — always lower than the marginal rate. Understanding the difference is the most common tax misconception in the US.

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Educational estimate only. Does not include credits, AMT, or other adjustments. Consult a tax professional or use IRS.gov for accurate calculations.