Federal Income Tax Estimator

The 2026 Federal Income Tax Calculator computes your U.S. federal income tax liability using the official tax brackets, standard deductions, and filing statuses published by the Internal Revenue Service for tax year 2026. Enter your gross income, filing status, and any above-the-line deductions to instantly see your marginal rate, effective tax rate, estimated tax liability, and after-tax take-home pay.

Understanding your federal tax bill is not just a year-end exercise — it drives decisions about retirement contributions, business structure, capital asset timing, and quarterly estimated payments. A single strategic move, such as maxing a 401(k) at $24,500 in 2026, can shift a taxpayer from the 22% bracket to the 12% bracket, saving thousands in a single filing year.

Who needs this calculator?

• Employees checking whether their W-4 withholding is adequate after a raise, bonus, or second job.
• Self-employed taxpayers estimating quarterly estimated payments due in April, June, September, and January.
• Investors projecting the tax cost of realizing capital gains, Roth conversions, or required minimum distributions (RMDs).
• Married couples comparing married filing jointly vs. married filing separately to identify the optimal filing status — particularly when one spouse has significant miscellaneous itemized deductions or medical expenses.
• Recent graduates and career changers negotiating compensation packages and evaluating the after-tax difference between a $90,000 salary and a $100,000 salary (spoiler: it's not $10,000).

The U.S. federal tax system is progressive and marginal — you are never taxed at your bracket rate on your entire income. Each dollar of income falls into a rate band, and only the dollars within each band are taxed at that rate. The brackets below reflect the IRS inflation adjustments for tax year 2026, effective for returns filed in 2027. The standard deduction increased to $16,100 for single filers, $32,200 for married filing jointly, and $24,150 for heads of household — representing meaningful increases from 2025 levels that reduce taxable income for the majority of Americans who do not itemize.

Federal income tax is calculated in layers. Each income layer is taxed at the applicable marginal rate for that layer only. The formula follows three steps:

2026 Tax Brackets — Single Filer (standard deduction: $16,100):

• 10% on taxable income $0 – $12,400
• 12% on $12,400 – $50,400
• 22% on $50,400 – $105,700
• 24% on $105,700 – $201,775
• 32% on $201,775 – $256,225
• 35% on $256,225 – $640,600
• 37% on income over $640,600

2026 Tax Brackets — Married Filing Jointly (standard deduction: $32,200):

• 10% on $0 – $24,800
• 12% on $24,800 – $100,800
• 22% on $100,800 – $211,400
• 24% on $211,400 – $403,550
• 32% on $403,550 – $512,450
• 35% on $512,450 – $768,700
• 37% on income over $768,700

2026 Tax Brackets — Head of Household (standard deduction: $24,150):

• 10% on $0 – $17,700
• 12% on $17,700 – $67,450
• 22% on $67,450 – $105,700
• 24% on $105,700 – $201,750
• 32% on $201,750 – $256,200
• 35% on $256,200 – $640,600
• 37% on income over $640,600

Married Filing Separately uses the same thresholds as Single, except the 35% bracket tops out at $384,350 (half of the MFJ 37% threshold of $768,700). The standard deduction for MFS is $16,100 — identical to single filers. Full bracket data is published in IRS Revenue Procedure 2025-32.

Note: these brackets apply to ordinary income (wages, self-employment, interest, short-term capital gains). Long-term capital gains and qualified dividends are taxed at 0%, 15%, or 20% based on separate thresholds.

1. Select your filing status. Choose Single, Married Filing Jointly (MFJ), Married Filing Separately (MFS), or Head of Household. Your filing status determines both your bracket thresholds and your standard deduction. A single parent who pays over half the household expenses and has a qualifying child typically qualifies for Head of Household, which provides a $24,150 standard deduction for 2026 vs. $16,100 for Single — saving up to $1,771 in tax at the 22% rate.
2. Enter your gross income. Include all taxable sources: W-2 wages, business net profit (Schedule C), freelance income (Form 1099-NEC), taxable interest (1099-INT), ordinary dividends (1099-DIV), short-term capital gains (Schedule D), and other taxable income. Do not include tax-exempt interest, qualified Social Security benefits below the threshold, or excluded foreign earned income.
3. Enter above-the-line deductions. These reduce your AGI before the standard deduction is applied and are available regardless of whether you itemize. Key deductions for 2026 include: traditional IRA contributions (up to $7,500; $8,600 if age 50+), HSA contributions ($4,400 self-only; $8,750 family), student loan interest (up to $2,500), self-employed health insurance premiums, and the deductible half of self-employment tax.
4. Choose standard or itemized deduction. The calculator defaults to the 2026 standard deduction for your filing status. If your itemized deductions — mortgage interest, state and local taxes (SALT, capped at $40,400 for 2026 under the OBBBA, phasing down above $505,000 AGI), charitable contributions, and qualifying medical expenses — exceed the standard deduction, switch to itemized. Fewer than 12% of taxpayers itemized after the 2017 Tax Cuts and Jobs Act nearly doubled the standard deduction.
5. Apply tax credits. Credits reduce tax dollar-for-dollar — they are more valuable than deductions. The Child Tax Credit provides up to $2,200 per qualifying child ($1,700 refundable). The Earned Income Tax Credit (EITC) maximum for 2026 is $8,231 for taxpayers with three or more qualifying children. Enter any applicable credits and the calculator will subtract them from gross tax liability.
6. Review results. The calculator outputs: (a) taxable income, (b) total tax before credits, (c) total tax after credits, (d) marginal bracket rate, (e) effective tax rate, and (f) after-tax income. An $85,000 single filer with the 2026 $16,100 standard deduction has $68,900 of taxable income and pays approximately $9,870 in federal income tax — an 11.6% effective rate despite being "in the 22% bracket."

Worked Example — Married Couple, $175,000 Combined Income:

• Gross income: $175,000
• Above-the-line deductions: $10,000 (401k employer match pass-through; deductible IRA $7,000 + $3,000 student loan interest)
• AGI: $165,000
• Standard deduction (MFJ): $32,200
• Taxable income: $132,800
• Tax: 10% × $24,800 = $2,480 | 12% × $76,000 = $9,120 | 22% × $32,000 = $7,040 = $18,640 total
• Effective rate: $18,640 ÷ $175,000 = 10.7% — well below the 22% marginal bracket

The two most important outputs from any income tax calculator are the marginal rate and the effective rate. Confusing them is the single most common misunderstanding in personal finance — and one with real financial consequences.

Marginal Rate is the rate that applies to your next dollar of income. If you are a single filer with $80,000 of taxable income in 2026, your marginal rate is 22% — but only the income between $50,400 and $80,000 is taxed at 22%. That's $29,600 taxed at 22%, not $80,000.

Effective Rate is your actual average tax rate — total tax ÷ total gross income. That same single filer earning $80,000 pays approximately $12,169 in federal income tax — an effective rate of about 15.2%, not 22%.

Why this matters for decisions:

• Retirement contributions: Contributing $5,000 to a traditional IRA at a 22% marginal rate saves you $1,100 in federal tax this year — money that compounds in the account rather than going to the IRS.
• Roth vs. traditional: If your marginal rate today (22%) is higher than your expected rate in retirement (12%), a traditional deduction is mathematically superior. If rates are likely to rise, Roth contributions win.
• Capital gains timing: Selling appreciated stock in a year when your income is temporarily lower can shift long-term capital gains from the 15% rate to the 0% rate (which applies to MFJ taxable income up to $98,900 in 2026, per IRS Revenue Procedure 2025-32).
• Withholding accuracy: After a significant raise, bonus, or side income, your W-4 withholding may be too low. The IRS Tax Withholding Estimator and this calculator together help you avoid underpayment penalties, which in 2025 equal the federal short-term rate + 3%.

Alternative Minimum Tax (AMT): High-income taxpayers should also check their AMT exposure. The 2026 AMT exemption is $90,100 for single filers and $140,200 for MFJ, phasing out at $500,000 / $1,000,000 respectively (the OBBBA reset these phaseout thresholds for 2026). Large incentive stock option exercises and certain preference items can trigger AMT even when your regular tax seems reasonable.

Net Investment Income Tax (NIIT): A 3.8% surtax applies to the lesser of net investment income or the amount by which MAGI exceeds $200,000 (single) or $250,000 (MFJ). This means a married couple with $300,000 in wages and $40,000 in investment income pays 3.8% on the $40,000, adding $1,520 to their federal bill — an amount many tax calculators omit.

Use the calculator's results as a starting point, then consult IRS Publication 17 (Your Federal Income Tax) for edge cases involving divorce, disability, alternative energy credits, and complex investment scenarios.

• Max your 401(k) — the highest-leverage deduction available to most workers. The 2026 employee contribution limit is $24,500 ($32,500 if age 50+). A worker in the 22% bracket who maxes this out saves $5,390 in federal income tax alone ($24,500 × 22%). Combined with payroll tax savings where applicable, the effective cost of saving $24,500 can be as low as $17,000 out-of-pocket. See IRS Revenue Procedure 2025-32 for the official 2026 limit.
• Fund an HSA if you have a qualifying high-deductible health plan (HDHP). For 2026, the HSA contribution limit is $4,400 (self-only) or $8,750 (family). HSA contributions are triple-tax-advantaged: deductible going in, grow tax-free, and are tax-free for qualified medical expenses. For a 24% bracket taxpayer, a $8,750 family contribution saves $2,100 in federal tax — and the account never expires. HSA balances roll over indefinitely.
• Harvest capital losses before December 31 to offset gains. Capital losses offset capital gains dollar-for-dollar, and up to $3,000 of excess losses can offset ordinary income annually. If you have losing positions and a taxable brokerage account, realize those losses before year-end. A taxpayer in the 32% bracket who harvests $10,000 in losses to offset $10,000 in short-term gains saves $3,200. Beware the 30-day wash-sale rule — buying back a substantially identical security within 30 days disallows the loss.
• Consider bunching charitable deductions into alternating years. Since fewer than 12% of taxpayers now itemize, many donors lose the tax benefit of charitable giving entirely. Bunching two years of donations into a single year — then taking the standard deduction the alternate year — allows you to itemize in the bunching year and claim above-average deductions. A donor-advised fund (DAF) lets you contribute a lump sum in one year and distribute grants over multiple years, combining tax efficiency with charitable flexibility.
• Time income recognition and business deductions to straddle tax years. If you expect a lower-income year in 2027 (e.g., career change, sabbatical, large deduction), defer year-end freelance invoicing or bonuses into January — legally shifting income from your higher 2026 rate to your lower 2027 rate. Conversely, accelerate deductible business expenses into 2026 if your marginal rate is currently higher than expected next year. Section 179 allows immediate expensing of qualifying business equipment up to $2,560,000 in 2026, phasing out once total qualifying purchases exceed $4,090,000.
• Use the Qualified Business Income (QBI) deduction if you are self-employed or own a pass-through entity. Section 199A allows eligible self-employed taxpayers and pass-through business owners to deduct up to 20% of qualified business income, subject to income limits. For 2026, the phase-in range for specified service trades begins at $201,775 (single) / $403,500 (MFJ). Below those thresholds, a sole proprietor netting $100,000 may deduct $20,000, saving $4,400 at the 22% rate. This deduction does not reduce SE tax — it reduces income tax only.
• Review your filing status eligibility every year. Qualifying Widow(er) status provides MFJ rates for two years after a spouse's death if a dependent child lives with you — a benefit many surviving spouses miss. Head of Household provides better rates than Single for unmarried parents. Filing status errors are among the most common and costly on Form 1040. The IRS Interactive Tax Assistant for filing status walks through eligibility criteria in under five minutes.

Your actual take-home pay subtracts more than just federal income tax. Here's the full stack of deductions on a typical paycheck:

Move the same $85,000 salary to Texas (no state income tax), and take-home jumps to roughly $64,882/year — an extra $4,400 annually. Use our paycheck calculator to compare take-home pay across states, or use the income tax calculator above for a detailed federal and state bracket breakdown.

This income tax estimator gives you a number in about sixty seconds. Here is what that number is, and what happens to it next.

Step one: enter your filing status. It is the single biggest lever on the result. The standard deduction and every bracket threshold change with it.

Step two: estimating your total taxes. The calculator applies your standard or itemized deductions, runs the remainder through the 2026 federal brackets, and subtracts credits such as the child tax credit and the earned income tax credit. What comes out is your total federal tax liability for the year.

Step three: the part people actually care about. Your liability is not what you write a check for. Subtract what has already been withheld from your paychecks.

Step four: the tax forms. Your actual tax return runs on Form 1040. The supporting tax forms arrive from other people: a W-2 from each employer, a 1099-NEC for contract work, a 1099-INT for bank interest, a 1099-B for investment sales, and a 1098 for mortgage interest. If you itemize, that goes on Schedule A. Self-employment income goes on Schedule C.

One warning worth acting on. If you expect to owe $1,000 or more beyond withholding, the IRS expects quarterly estimated payments — not one payment in April. Missing them triggers an underpayment penalty even if you pay in full on time. The fix is usually simple: file a new Form W-4 with your employer and raise your withholding.

This tool is an estimate, not tax advice. It handles the common case well. It does not model the alternative minimum tax, stock compensation, rental depreciation, or multi-state filings. If any of those apply to you, a CPA will save you more than they cost.

This calculator estimates your federal income tax liability: filing status, spouse income, pre-tax deductions such as 401(k) and traditional IRA contributions, and tax credits applied against what you owe. It deliberately does not ask for your state, because state income tax is a genuinely separate calculation with fifty different rule sets — nine states levy none at all, some are flat, and the rest are graduated with their own brackets and deductions.

If you need state tax as well, use the income tax calculator by state, which layers your state's 2026 rates on top of the federal figures below. To see what actually lands in your bank account each pay period — federal and state tax plus Social Security and Medicare withholding — use the paycheck calculator instead. The three answer different questions: what you owe federally, what you owe in total, and what you take home.

The 2026 brackets come from IRS Revenue Procedure 2025-32, with the seven-rate structure made permanent by the One Big Beautiful Bill Act. These are the exact thresholds this calculator applies — rates hit taxable income, after the 2026 standard deduction of $16,100 (single), $32,200 (married filing jointly), or $24,150 (head of household):

Worked example (verified against this calculator): a single filer grossing $100,000 in 2026 has $83,900 of taxable income after the standard deduction. Tax = 10% × $12,400 + 12% × $38,000 + 22% × $33,500 = $13,170 — a 13.2% effective rate on gross income, even though the marginal rate is 22%. Confusing those two numbers is the single most common tax mistake:

Federal tax is only half the bill. Payroll taxes add 7.65% FICA on wages (Social Security's 6.2% stops at the $184,500 wage base), and most states layer their own income tax on top. We publish dedicated 2026 pages for every state — for example California, Texas, Florida, New York, Pennsylvania, Ohio, and Georgia — each with state brackets and worked salary examples. Your paycheck calculator result shows the combined federal + FICA + state withholding per pay period, and if you sold investments this year, the capital gains calculator covers the separate 0%/15%/20% long-term rates.