Income Tax Calculator (2026)

How Your Income Breaks Down by Bracket

This shows exactly how much of your taxable income falls into each bracket and how much tax that portion generates — this is the part that clears up most of the confusion about "moving into a higher bracket."

What This Calculator Does

This tool estimates federal income tax owed for the 2026 tax year (the return filed in early 2027) using the actual IRS tax brackets and standard deduction amounts released for that year. Enter your gross income and filing status, and it walks your taxable income through each bracket the same way the IRS does, so the estimate reflects the real progressive structure of the tax code rather than a flat-rate approximation. Pair it with the investment calculator or retirement calculator if you're trying to see how pre-tax contributions to a 401(k) or IRA might change your taxable income and tax bracket.

2026 Federal Tax Brackets

Source: IRS Revenue Procedure 2025-32 (2026 tax year, inflation-adjusted under the One Big Beautiful Bill Act).

2026 Standard Deduction

• Single filers: $16,100
• Married Filing Jointly: $32,200
• Head of Household: $24,150
• Taxpayers 65 and older can claim an additional standard deduction on top of these amounts.

The standard deduction reduces your taxable income before any bracket is applied. Most filers use it rather than itemizing, since common itemizable expenses — mortgage interest, state and local taxes, charitable donations — often don't add up to more than the standard amount unless you have a large mortgage, significant medical expenses, or sizable charitable giving.

How Federal Tax Is Actually Calculated

Federal tax is calculated in three steps. First, subtract your deduction from gross income to get taxable income: Taxable Income = Gross Income − Deduction. Second, that taxable income is run through each bracket in order — the first dollars are taxed at 10%, the next slice at 12%, and so on, only reaching your top bracket for income at the very top of the scale. Third, the tax owed from every bracket is added together for your total federal tax. This is why a single filer earning $105,700 doesn't pay 22% on the whole amount — they pay 10% on the first $12,400, 12% on the next chunk up to $50,400, and 22% only on the portion above that, up to $105,700.

Marginal Rate vs. Effective Rate

Your marginal tax rate is the rate on your last dollar earned — essentially, which bracket you're currently sitting in. Your effective tax rate is your total tax divided by your total income, blending all the brackets you passed through along the way. The effective rate is always lower than the marginal rate for anyone above the first bracket, and it's the more accurate number for understanding what share of your income actually goes to federal tax. A common mix-up is assuming a raise that bumps you into a higher bracket somehow lowers your take-home pay — it doesn't, because only the income above the new threshold is taxed at the higher rate.

What This Calculator Doesn't Include

• State income tax. Rates and rules vary by state, and several states charge no income tax at all — this tool covers federal tax only.
• Payroll taxes (FICA). Social Security (6.2%) and Medicare (1.45%) are calculated separately on wage income at fixed rates, not through the bracket system.
• Tax credits. Credits like the Child Tax Credit or Earned Income Tax Credit reduce tax owed dollar-for-dollar and aren't factored into this estimate.
• Above-the-line adjustments such as certain retirement or HSA contributions, which can lower taxable income before the deduction is even applied.

Legitimate Ways to Lower Taxable Income

• Contributing to a traditional 401(k) or IRA, which reduces taxable income in the year you contribute.
• Contributing to a Health Savings Account (HSA) if you have a qualifying high-deductible health plan.
• Itemizing deductions instead of taking the standard deduction, if your itemizable expenses are genuinely higher.
• Timing charitable contributions or medical expenses to fall in a year where they push you over the standard deduction threshold.
• Using tax-loss harvesting in a taxable brokerage account to offset investment gains.

Common Misunderstandings About Tax Brackets

• "I'll take home less money if a raise pushes me into a higher bracket." Not true — only the income above the new threshold is taxed at the higher rate; every dollar below it is still taxed the same as before.
• Confusing marginal rate with effective rate. Someone in the 24% bracket is not paying 24% of their total income in federal tax — their effective rate is meaningfully lower.
• Forgetting the deduction happens before the brackets. Tax brackets apply to taxable income, not gross income, so the standard or itemized deduction matters just as much as the bracket thresholds themselves.
• Assuming federal tax is the whole picture. State tax and payroll tax (FICA) both apply on top of federal income tax and aren't part of this calculation.

Frequently Asked Questions

Q: What are the 2026 federal income tax brackets?

A: For 2026, there are seven federal tax brackets: 10%, 12%, 22%, 24%, 32%, 35%, and 37%. For single filers, the 10% bracket applies to income up to $12,400, and the top 37% bracket applies to income above $640,600. Brackets for married filing jointly and head of household are wider at each threshold.

Q: What is the standard deduction for 2026?

A: For the 2026 tax year, the standard deduction is $16,100 for single filers, $32,200 for married couples filing jointly, and $24,150 for heads of household.

Q: What is the difference between marginal tax rate and effective tax rate?

A: Marginal tax rate is the tax rate applied to your last dollar of taxable income, based on your top tax bracket. Effective tax rate is your total tax owed divided by your total income, which is always lower than your marginal rate because of the progressive bracket system.

Q: Do I pay my top tax rate on all of my income?

A: No. The U.S. uses a progressive tax system, so only the portion of income that falls within a given bracket is taxed at that bracket's rate. Moving into a higher bracket only raises the rate on income above that threshold, not on your entire income.

Q: Should I take the standard deduction or itemize?

A: You should generally take whichever is larger. Most taxpayers take the standard deduction because their itemizable expenses, such as mortgage interest, state and local taxes, and charitable donations, don't exceed the standard deduction amount for their filing status.

Q: Does this calculator include state income tax?

A: No, this calculator estimates federal income tax only. State income tax rates and rules vary widely, and some states have no income tax at all, so state tax should be calculated separately.

Q: Does this calculator account for payroll taxes like Social Security and Medicare?

A: No, this calculator estimates federal income tax only and does not include Social Security or Medicare (FICA) payroll taxes, which are calculated separately at fixed rates on wage income.