Your tax percentage depends on which tax you’re looking at. Federal income tax uses a bracket system where different portions of your income are taxed at different rates, ranging from 10% to 37%. But that top bracket rate isn’t what you actually pay overall. Your real tax percentage, called your effective tax rate, is usually much lower. Here’s how to find it for every type of tax that hits your income.
Marginal vs. Effective: Two Different Percentages
Before you calculate anything, it helps to understand which tax percentage you’re actually looking for. Your marginal tax rate is the rate applied to your last dollar of income. Your effective tax rate is the overall percentage of your income that goes to taxes. These two numbers can be very different.
For example, if you’re a single filer with $60,000 in taxable income in 2025, your marginal rate is 22% because that’s the bracket your top dollars fall into. But you don’t pay 22% on all $60,000. You pay 10% on the first $11,925, then 12% on the next chunk up to $48,475, and only 22% on the remaining amount above that. The result is an effective rate well below 22%.
How Federal Income Tax Brackets Work
The federal government taxes income in layers. For 2025, single filers face these brackets:
- 10%: $0 to $11,925
- 12%: $11,926 to $48,475
- 22%: $48,476 to $103,350
- 24%: $103,351 to $197,300
- 32%: $197,301 to $250,525
- 35%: $250,526 to $626,350
- 37%: $626,351 and up
Married couples filing jointly get wider brackets. Their 10% bracket covers income up to $23,850, the 12% bracket runs to $96,950, and the 22% bracket extends to $206,700. Head of household filers fall somewhere in between, with the 10% bracket covering income up to $17,000 and the 12% bracket reaching $64,850.
These brackets apply to taxable income, not gross income. You reach taxable income after subtracting either the standard deduction or your itemized deductions. That step alone can shift which bracket your top dollars land in.
Calculate Your Effective Tax Rate
Your effective tax rate tells you what percentage of your income actually went to federal taxes. The formula is straightforward:
Effective Tax Rate = Total Tax ÷ Taxable Income × 100
If you have last year’s tax return handy, you can find this in about 30 seconds. On Form 1040, take the number on line 24 (your total tax) and divide it by the number on line 15 (your taxable income). Multiply by 100 to get a percentage. Someone who owed $8,000 in tax on $55,000 of taxable income has an effective rate of about 14.5%.
This number is useful for budgeting and for comparing your tax burden year over year. It’s also the figure to use if someone asks “what percentage do you pay in taxes” and you want an honest, complete answer rather than just quoting your top bracket.
Payroll Taxes Add a Fixed Percentage
Federal income tax isn’t the only percentage taken from your paycheck. FICA taxes (Social Security and Medicare) are a flat 7.65% on your wages: 6.2% for Social Security and 1.45% for Medicare. Your employer pays a matching 7.65% on top of that, though you don’t see that deduction on your pay stub.
If you earn above $200,000 as a single filer (or $250,000 for married couples filing jointly), an additional 0.9% Medicare surtax kicks in on the earnings above that threshold. Social Security tax also has a wage cap that adjusts each year. Once your earnings exceed that cap, the 6.2% stops being withheld for the rest of the year.
To find your total tax percentage from a paycheck, add your federal income tax withholding rate to the 7.65% FICA rate, plus any state and local income tax withholding. Your pay stub typically shows each of these as separate line items.
Finding Your State Income Tax Rate
State income taxes vary widely. Nine states don’t tax wage or salary income at all. Fourteen states use a flat rate, meaning every dollar of taxable income is taxed at the same percentage regardless of how much you earn. The remaining states and the District of Columbia use graduated brackets similar to the federal system, where higher income is taxed at progressively higher rates.
To find your state’s rate, visit your state department of revenue or taxation website. If you live in a flat tax state, the calculation is simple: your state tax percentage is that single rate applied to your state taxable income. If your state uses brackets, you’ll need to walk through the same layered calculation described above for federal taxes, just using your state’s bracket thresholds instead.
How to Look Up Sales Tax
Sales tax percentages are location-specific because they typically combine a state rate with county and sometimes city rates. The same item can be taxed at different percentages depending on where you buy it.
Most state tax agency websites offer a free lookup tool where you can enter an address or zip code and get the combined sales tax rate for that exact location. Search for your state’s department of revenue or taxation and look for a “tax rate lookup” or “sales tax finder” tool. You generally don’t need to create an account to use these.
Putting It All Together
If you want a single number that represents your total tax percentage across all taxes, add up every tax you paid in a year (federal income tax, state income tax, FICA, and any local taxes) and divide by your gross income. This gives you your all-in effective tax rate.
For a quick estimate without doing a full return, use these rough steps. Start with your gross income, subtract the standard deduction to estimate taxable income, then walk through the federal brackets to calculate your federal tax. Add 7.65% of your gross wages for FICA, plus your state income tax rate applied to your state taxable income. Divide the total by your gross income, and you’ll have a reasonable approximation of the overall percentage of your earnings going to taxes.