Effective Tax Rate Calculator 2026
This calculator computes your 2026 federal effective tax rate, also called your average tax rate. Your effective rate is your total federal income tax divided by your total taxable income, expressed as a percentage. It differs from your marginal rate (the rate on your last dollar), which is always higher because earlier dollars are taxed at lower rates. Enter your gross income and filing status; the calculator applies the 2026 standard deduction and 2026 tax brackets from IRS Rev. Proc. 2025-32 to compute your taxable income, then calculates both your effective rate and your marginal rate. The interactive income breakdown bar chart shows the composition of your income: what portion is shielded by the standard deduction, and what portion is taxable. Understanding the difference between effective and marginal rates helps with tax planning decisions like evaluating whether a raise will significantly increase your tax burden or deciding whether an additional deduction is worthwhile. This calculator assumes standard deductions only and does not account for itemized deductions or credits.
A single filer earning $85,000 in 2026 has an effective federal tax rate of 14.33% and a marginal rate of 22%. Total tax: $9,870.
Income breakdown
Per-bracket breakdown
| Rate | Bracket range | Income in bracket | Tax for this slice |
|---|
What the effective tax rate tells you
The effective rate is the single most useful summary of your federal income tax burden. It answers the question: out of every dollar of taxable income, how many cents go to federal tax? A single filer with $85,000 gross income in 2026 has a marginal rate of 22%, but the effective rate is closer to 14% because the first $12,400 of taxable income is taxed at only 10% and the next slice at 12%.
taxable income = gross income - standard deduction
total tax = sum of (bracket width x rate) for each bracket reached
effective rate = total tax / taxable income
marginal rate = rate of the highest bracket reached
Worked example: single filer, $85,000 gross
- Standard deduction (single, 2026): $16,100
- Taxable income: $85,000 - $16,100 = $68,900
- 10% on $0 to $12,400 = $1,240.00
- 12% on $12,400 to $50,400 = $4,560.00
- 22% on $50,400 to $68,900 = $4,070.00
- Total tax = $9,870.00
- Marginal rate = 22%
- Effective rate = $9,870 / $68,900 = 14.33%
Effective rate vs. marginal rate: a practical comparison
The gap between effective and marginal rate is largest for moderate incomes, where the lower brackets cover a substantial share of taxable income. For a single filer at exactly $50,400 gross income in 2026: taxable income is $34,300 ($50,400 minus $16,100 standard deduction), which falls entirely below the 22% threshold. The marginal rate stays at 12% in that case, and the effective rate is lower still.
At higher incomes, the marginal rate rises faster than the effective rate because the lower brackets still apply to the first portions of income. Even a taxpayer in the top 37% bracket has their first $640,600 of taxable income taxed at lower rates first; their effective rate is well below 37%.
How the standard deduction shifts your effective rate
The standard deduction is subtracted before any tax applies. This means the first $16,100 of a single filer's gross income generates zero federal tax. The effective rate calculation uses taxable income as the denominator, not gross income, which is why comparing effective rates across calculators requires checking their denominator assumption.
If you itemize deductions instead of taking the standard deduction, your taxable income will be lower (assuming itemized deductions exceed the standard deduction), which lowers your effective rate further. Use IRS Schedule A to determine whether itemizing benefits you.
How to read your effective rate correctly
The number this tool reports depends entirely on which income you divide by, and that choice trips up more people than the brackets do. This calculator uses taxable income as the denominator, so a single filer on $85,000 shows 14.33%. Divide the same $9,870 of tax by gross income of $85,000 and the rate falls to 11.61%. Most published average-tax-rate figures, including the IRS Statistics of Income tables, divide by adjusted gross income, which is why your rate here can look higher than numbers you see quoted elsewhere. Neither answer is wrong; they answer different questions. Always check the denominator before you compare two effective rates.
The second common mistake is fearing that a raise will be taxed at your top bracket on every dollar you earn. It will not. Only the income above each threshold is taxed at that bracket's rate, so moving from $85,000 to $90,000 is taxed at 22%, while your first $12,400 of taxable income is still taxed at 10%. A raise can never leave you with less take-home pay.
Finally, keep in mind what this figure leaves out. It is federal income tax only. It excludes the 7.65% Social Security and Medicare payroll tax withheld from wages, any state income tax, and credits such as the Child Tax Credit that can push your true rate well below the bracket math. Treat 14.33% as one line of the bill, not the whole of it.
Effective tax rate: frequently asked questions
What is an effective tax rate?
Your effective tax rate (also called your average tax rate) is your total federal income tax divided by your total taxable income, expressed as a percentage. It represents the actual share of your taxable income that goes to federal tax, taking into account that different slices of income are taxed at different rates. It is always lower than your marginal rate.
Why is the effective rate always lower than the marginal rate?
Because only the income above each bracket threshold is taxed at that bracket's rate. The first dollars you earn are taxed at 10%, the next slice at 12%, and so on. Even if your top dollar falls in the 22% bracket, the earlier slices were taxed at only 10% or 12%. The weighted average across all slices (your effective rate) is therefore always below the top marginal rate.
How does the standard deduction affect my effective rate?
The standard deduction reduces your taxable income before any bracket applies. A larger deduction means less income is taxed at all, which lowers both your total tax and your effective rate. For 2026, the standard deduction is $16,100 (single), $32,200 (married filing jointly), $24,150 (head of household), and $16,100 (married filing separately), per IRS Rev. Proc. 2025-32.
What is a 'good' effective tax rate?
There is no universally good or bad effective rate. It depends on your income, filing status, and deductions. The IRS Statistics of Income data shows median effective rates vary widely across income levels. A filer with $50,000 of gross income (single, 2026, standard deduction only) has an effective rate around 11%. A filer with $200,000 pays a higher effective rate. Your effective rate rises as income rises under a progressive system.
Does this calculator include state income tax?
No. This calculator covers federal income tax only. Most states also impose a separate income tax. To estimate your full tax burden, add your state income tax. See our state-specific income tax calculators for state rates.
Why might my actual tax bill differ from this calculator's result?
This calculator uses the standard deduction and does not account for itemized deductions, tax credits, above-the-line deductions (such as IRA or HSA contributions), capital gains income, self-employment tax, or the alternative minimum tax. For a comprehensive picture, use IRS Free File or consult a tax professional.
Official sources
- 2026 bracket thresholds and standard deductions: IRS Rev. Proc. 2025-32.
- Standard deduction rules: IRS Publication 505, Tax Withholding and Estimated Tax.
- Itemized deductions: IRS Schedule A (Form 1040).
Reviewed by the CalculatorHub team, edited by James Graham, 11 July 2026. See our methodology. General information, not tax advice.