Effective Tax Rate
Your total federal income tax divided by your total income, expressed as a percentage. It represents the average rate at which your income is actually taxed.
Your effective tax rate is calculated by dividing your total tax liability by your total income (or taxable income, depending on the context). It gives you a single percentage that represents the real share of your income going to taxes.
Because the US uses progressive tax brackets, your effective rate is almost always lower than your marginal rate. For example, a single filer earning $80,000 in taxable income in 2025 might have a marginal rate of 22% but an effective rate closer to 15% because a large portion of their income is taxed at the lower 10% and 12% rates.
The effective rate is the most meaningful number when comparing your tax burden year over year or against other taxpayers. It accounts for all brackets, deductions, and credits. When people say they "pay X% in taxes," they usually mean their effective rate.
How it works
Your effective tax rate is your total federal income tax divided by your total income, expressed as a single percentage. Unlike your marginal rate, which only reflects the bracket your last dollar landed in, the effective rate blends together every bracket your income passed through — the 10% you paid on the first slice, the 12% on the next, and so on up to whatever your top bracket is. It is the truest single-number summary of how much of your income actually went to federal tax.
Nobody fills in an effective-rate line on a tax form — you calculate it yourself after filing by dividing the total tax shown on your return by your total income or your taxable income, depending on which comparison you want to make. It is most useful as a planning and comparison tool: tracking your own effective rate year over year shows whether life changes, deductions, or credits are actually moving the needle, in a way that a marginal rate alone cannot show.
Because the US bracket system is progressive, your effective rate is almost always noticeably lower than your marginal rate — a taxpayer whose top bracket is 22% might have an effective rate closer to 15% once the lower brackets and any deductions and credits are factored in. When people casually say they pay a certain percentage in taxes, they usually mean their effective rate, even if they don't use the term, which is why comparing your effective rate to a headline bracket percentage from the news can be misleading.
Example: comparing marginal and effective rates
A single filer has $80,000 of taxable income for 2025, putting their marginal rate at 22% since part of that income falls in the 22% bracket.
But because the first $11,925 was taxed at only 10% and the next chunk at 12%, with just the top portion taxed at 22%, the filer's total tax comes out well below what a flat 22% on all $80,000 would produce — giving an effective rate noticeably lower than the 22% marginal rate, closer to 15% once all the brackets are blended together.
Frequently asked questions
How do I calculate my effective tax rate?
Why is my effective tax rate lower than my tax bracket?
Is effective tax rate the same as what people mean when they say they pay 22% in taxes?
Related Terms
Marginal Tax Rate
The tax rate applied to your last (highest) dollar of taxable income. It indicates how much tax you would pay on an additional dollar of earnings.
Tax Bracket
A range of income taxed at a specific rate. The US uses a progressive system with seven brackets ranging from 10% to 37% for 2025.
Tax Liability
The total amount of tax you owe for the year before accounting for payments, withholding, and refundable credits. It is the bottom-line tax calculated on your return.