The effective vs marginal tax rate difference is simple. Your marginal tax rate is the rate on your last dollar of income. Your effective tax rate is your total tax divided by your income. Because the US taxes income in brackets, your effective rate is always lower than your marginal rate, often by half.
A quick example
A single worker earning $75,000 is “in the 22% bracket”. But only the part of taxable income above $50,400 is taxed at 22%. The first dollars are taxed at 10% and 12%, and the first $16,100 of salary is not taxed at all thanks to the standard deduction. The result: federal income tax is about 10.2% of salary.
Marginal vs effective rates at different salaries
| Salary | Federal marginal rate | Federal effective rate | Total effective rate (with FICA) |
|---|---|---|---|
| $30,000 | 12% | 4.7% | 12.4% |
| $50,000 | 12% | 7.6% | 15.3% |
| $75,000 | 22% | 10.2% | 17.9% |
| $100,000 | 22% | 13.2% | 20.8% |
| $150,000 | 24% | 16.5% | 24.1% |
| $250,000 | 32% | 20.5% | 26.7% |
Single filer in Texas (no state income tax), 2026.
Why it matters
- Raises: moving into a higher bracket never lowers your take-home pay. Only the extra dollars are taxed at the higher rate.
- Deductions: a pre-tax 401(k) contribution saves tax at your marginal rate, which is why it is so effective for middle and high earners.
- Budgeting: use your effective rate (or better, your real take-home pay) to plan monthly spending.
Don’t forget payroll and state taxes
Social Security (6.2%) and Medicare (1.45%) apply from the first dollar, so your combined marginal rate on a raise is higher than the federal bracket alone. In a state with income tax, add your state marginal rate too.
A step-by-step example
Take a single worker earning $75,000. After the $16,100 standard deduction, taxable income is $58,900:
- 10% on the first $12,400 = $1,240
- 12% on the next $38,000 = $4,560
- 22% on the remaining $8,500 = $1,870
Total federal income tax: $7,670. The marginal rate is 22%, but $7,670 is only about 10.2% of the $75,000 salary: that is the effective federal rate.
Marginal rate and a raise
If this worker gets a $5,000 raise, the extra income is taxed at 22% federal, plus 7.65% FICA, plus any state tax. In Texas, roughly 70% of the raise reaches the paycheck. The raise never reduces take-home pay, contrary to a common myth.
Marginal rate and deductions
Deductions save money at your marginal rate. A $1,000 traditional 401(k) contribution saves $220 of federal tax for someone in the 22% bracket, but only $120 for someone in the 12% bracket. This is why Roth accounts often make more sense in lower brackets and traditional accounts in higher ones.
Where to find your rates
Your tax return shows your total tax, from which you can compute your effective rate. Your marginal rate depends on your taxable income and the brackets for your filing status. Our calculators show both for any salary.
See the full bracket-by-bracket breakdown in our 2026 federal tax brackets guide or use the salary after tax calculator.
Effective vs marginal tax rate: how to find yours
You can work out both rates in a few minutes with your salary or your last tax return:
- Find your taxable income: salary minus pre-tax contributions and the standard deduction ($16,100 for a single filer in 2026).
- Look up your bracket. The highest bracket your taxable income reaches is your federal marginal rate.
- Divide your total federal income tax by your salary. The result is your effective federal rate.
- Add payroll and state taxes if you want your total rate, as in the table above.
Effective vs marginal tax rate at $50,000 and $100,000
From the table above, a single filer in Texas earning $50,000 has a 12% marginal rate but a 7.6% effective federal rate. At $100,000, the marginal rate is 22% and the effective federal rate is 13.2%. Doubling the salary nearly doubles the marginal rate, but the effective rate rises more slowly because the first dollars are still taxed at 10% and 12%.
Effective vs marginal tax rate for a bonus
Bonuses are often withheld at a flat federal rate, so the amount on your paycheck can look high. That withholding is only a prepayment. When you file, the bonus is added to your other income and taxed at your marginal rate, and any excess withholding comes back as a refund. Thinking in effective vs marginal tax rate terms helps here too: the bonus is taxed at the top of your income, while your effective rate on the whole year barely moves.
Effective vs marginal tax rate: which one to use
- Marginal rate: raises, bonuses, overtime, and the value of a deduction or 401(k) contribution.
- Effective rate: comparing your overall tax burden across years, states or job offers.
Common mistakes
- Using the marginal rate to budget. It overstates your tax. Use your effective rate or, better, your real take-home pay.
- Using the effective rate to value a deduction. It understates the savings. A deduction saves tax at your marginal rate.
- Forgetting FICA and state tax when judging how much of a raise or bonus you keep.
Once you understand the effective vs marginal tax rate distinction, raises, bonuses and 401(k) decisions become much easier to judge. The IRS publishes the official brackets on its federal income tax rates and brackets page. For complex situations, such as self-employment or large investment income, a tax professional can help.
Frequently asked questions
What is a marginal tax rate?
The rate applied to your next dollar of income, set by the highest bracket your taxable income reaches.
What is an effective tax rate?
Your total tax divided by your income: the average rate you actually pay.
Which rate should I use for a raise?
The marginal rate, plus payroll and state taxes, tells you how much of a raise you keep.
Estimates for information only, not tax advice.
