Understanding your effective tax rate
Ask a freelancer what they pay in tax and you will usually hear a bracket: "I'm in the 22%." That number is real, but it is the tax on the next dollar — not the tax on all the dollars. The figure that should drive your pricing and your savings is the effective rate, and for a self-employed person it looks quite different.
Two numbers, not one
Your marginal rate is the tax on your highest slice of income. Earn into the 22% bracket and your next dollar is taxed at 22%. Your effective rate is your total tax divided by your total income, with every bracket below counted in. Because the bottom slices are taxed at 10% and 12%, the average is pulled well below the top.
For a W-2 employee the difference is a curiosity. For a freelancer it is the difference between setting aside 22% and setting aside 30% — and the gap is almost entirely self-employment tax.
Self-employment tax is the missing piece
A salary employee "pays" 15.3% in Social Security and Medicare too, but half is paid by the employer and half is withheld quietly. A freelancer pays the whole 15.3% themselves, on 92.35% of net profit, and nothing is withheld. So even at a modest 12% or 22% income-tax bracket, the blended federal rate lands around 25% for many solo earners once SE tax is added.
The order matters. SE tax is computed first. Then half of it is deductible, which lowers adjusted gross income, which lowers the income-tax slice computed after. The effective tax rate calculator does this in the correct sequence so the blended number is right.
Why the effective rate belongs in your pricing
Pricing decisions made against the marginal bracket are systematically wrong in one direction: they make you turn away work that would have been profitable. Suppose your effective rate is 25% and your marginal bracket is 22%. Judging a project by the 22% bracket, you might decline a fixed-fee job that, after the real 25% comes out, still clears your target. The lower effective rate is the honest number to weigh against the cost of saying no.
The same logic applies to raises and rate increases. A $20 increase in your hourly rate does not put $20 more in your pocket per hour — it puts in your hourly rate minus your effective rate. At 25%, a $100 rate really pays you $75 an hour after federal tax. Framing it that way is what stops "I'm already at $100, I don't need to raise" from quietly eroding your standard of living.
What pushes the effective rate down
- Retirement contributions. SEP IRA and Solo 401(k) contributions are above-the-line deductions. At a 25% blended rate, a $10,000 contribution saves roughly $2,500 in tax — and the money is still yours, just earmarked for retirement.
- The QBI deduction. Many freelancers qualify for a 20% deduction on qualified business income. This simplified view does not model it, but if you qualify your effective rate is lower still — the QBI calculator shows the size of the saving.
- Standard vs itemized. Everyone gets the standard deduction, which lops a flat amount off taxable income and shrinks the effective rate, especially at lower incomes.
State tax sits on top
Everything above is federal. State income tax is separate, ranges from zero to over 10%, and stacks on top of the federal effective rate. A freelancer in a zero-income-tax state with a 25% federal effective rate has a 25% all-in rate; one in California adds another 9–13% on top. When you set your savings target, add the state rate to the federal effective rate from the calculator.
The practical takeaway
Use the marginal bracket for "how much will this extra dollar cost me." Use the effective rate for "how much of my income is actually mine" and "how much should I move to a tax account." For most US freelancers the answer to that last question is about a quarter to a third of every payment — and now you know exactly why it is more than the bracket you quote at dinner.
Illustrative, federal only. This guide uses the 2025 tax year and ignores state tax, the QBI deduction, credits, and W-2 withholding. See the disclaimer and confirm current figures with the IRS.
Frequently asked questions
Is my effective tax rate the same every year?
No. It rises as income climbs into higher brackets and falls when deductions, retirement contributions, or a loss reduce taxable income. It also shifts with filing status and, for many freelancers, with the QBI deduction. Recompute it whenever your income or circumstances change materially.
Why does my effective rate feel lower than my April bill suggests?
Because the April bill includes self-employment tax that no employer ever withheld for you, plus any underpayment. The effective rate already contains SE tax — it is the honest all-in federal number — but seeing it as one April payment still stings if you have not been setting it aside monthly.
Should I use the effective or marginal rate to set my savings target?
Effective, plus your state rate. The effective rate is what you actually lose to tax across all income, so it is the right share to move to a tax account on every payment. The marginal rate only describes the next dollar and will leave you short if used as the savings percentage.
Does the effective rate include the extra 0.9% Medicare surtax?
The calculator models it: above the threshold ($200,000 of profit for single filers in the 2025 tax year) the Medicare portion rises, which nudges the effective rate up at high incomes. Below the threshold it does not apply.
How is this different from the quarterly tax calculator?
The quarterly calculator sizes the payments you must make through the year to avoid a penalty. This one shows the blended rate those payments are paying — useful for pricing and saving. They answer different questions and pair well.