Federal Income Tax Calculator

Curious about how much you may owe or get back when you file taxes in April 2025? Use this free income tax calculator to project your 2024 federal tax bill or refund.

Tax details

Your standard deduction: $14,600

Federal income tax breakdown

For the 2024 tax year, we estimate you will get back

$0.00

Taxable income
Gross income$100,000
Standard deduction−$14,600
Retirement contributions−$0
Other deductions−$0
Taxable income$0
Estimated federal taxes
Taxes before adjustments$0.00
Federal taxes withheld−$0
Tax credits−$0
Taxes refunded$0.00
Tax rate
Effective tax rate0%
Marginal tax rate0%

How to use this income tax calculator

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Filling out your tax details

Tax year: Choose the tax year for which you'd like to calculate your bill. The calculator is automatically set to 2024 — the current year — which will help you estimate the bill or refund you may receive when you file your taxes in 2025. Toggling between different tax years can also help you compare how your taxes stack up year over year.

Tax filing status: Choose from one of the four tax filing statuses available (single, head of household, married filing separately, or married filing jointly). Your filing status helps determine which deductions and credits you can claim.

Annual gross income: In this calculator field, enter your total household income before taxes. Include wages, tips, commission, income earned from interest, dividends, investments, rental income, retirement distributions, unemployment compensation and Social Security benefits.

Age: Enter your age. Your age can have an effect on certain tax rules or deductions. For example, people 65 and older get a higher standard deduction.

Standard/itemized deductions: Select either “standard deduction” or “itemized deductions.” Most Americans claim the standard deduction, which we’ve pre-filled. If you’re not one of them, fill in the sum of your itemized deductions. (Exclude 401(k) and traditional IRA contributions.)

Taxes withheld: Enter how much your employer has withheld on your behalf or how much you have paid in estimated taxes. If you're unsure, estimate. You will still get insights into how much you may owe.

401(k) contributions: Enter any pre-tax contributions you made to a traditional 401(k) account. The maximum 401(k) contribution for 2024 is $23,000 or $30,500 for those 50 and older. These contributions may reduce your taxable income.

IRA contributions: Enter contributions made to a traditional IRA. The IRA contribution limit in 2024 is $7,000 ($8,000 for those 50 or older). You can make a 2024 contribution until the tax filing deadline in April 2025. An important note: Contributing to a traditional IRA may not have any immediate tax benefits if your income exceeds a threshold set by the IRS and you or your spouse are also covered by a 401(k).

Other deductions: In this field, enter any other contributions made throughout the year not accounted for elsewhere (e.g., HSA or student loan deduction).

Tax credits: Enter how much you expect to claim in tax credits on your return. Common tax credits include the child tax credit, the child and dependent care credit, the earned income credit, the EV credit, and the American opportunity credit.

Ready to file?

How this tax calculator works

This calculator takes the gross income entered into the income field and then subtracts applicable deductions and adjustments, such as 401(k) contributions, HSA contributions, and your standard or itemized deductions. This, among other factors, determines taxable income.

Then, we apply the appropriate tax bracket and rate(s) based on taxable income and filing status to calculate what amount in taxes the government expects you to pay.

The United States taxes income progressively. Generally speaking, this means that your income is divided into portions called brackets, and each portion is taxed at a specific rate. High earners pay more in taxes, as portions of their income are subject to higher tax rates.

The calculator also takes into account tax credits, which can further reduce your bill.

If you have a simple tax situation and have filled out your W-4 correctly, taxes already withheld from your paychecks might cover that bill for the year. Likewise, if you’re a freelancer or a taxpayer who must pay estimated taxes, payments you made during the year might also cover your bill.

If it turns out that your tax withholding, payments, or any credits you qualify for did not cover your liability, you may need to pay the rest at tax time. If you’ve paid too much, you’ll get a refund.

This calculator assumes:

  • A standard deduction, but you may change to itemized deductions in the “deductions” section.

  • Tax credit amounts entered are assumed to be nonrefundable. Although a handful of credits can result in a refund of the overage, we do not account for this in our calculations.

  • The rules for whether a traditional IRA contribution is tax-deductible are complex, so this calculator assumes your IRA contributions are not tax-deductible if you already contribute to a 401(k). 

  • Numbers entered in the “withheld” field include taxes withheld by your employer and/or any estimated taxes you have paid.

Note that this calculator does not take into account state income taxes, another type of income tax you may have to account for when filing your tax return.

Frequently asked questions

Deciding how to take your deductions — that is, how much to subtract from your adjusted gross income, thus reducing your taxable income — can make a huge difference in your tax bill. But making that decision isn’t always easy.

The standard deduction is a flat reduction in your adjusted gross income. The amount is determined by Congress and meant to keep up with inflation. Nearly 90% of filers take it because it makes the tax-prep process quick and easy. People 65 or older are eligible for a higher standard deduction.

People who itemize tend to do so because their deductions add up to more than the standard deduction, saving them money. The IRS allows you to deduct a litany of expenses from your income, but record-keeping is key — you need to be able to prove, usually with receipts, that the expenses you’re deducting are valid. This means effort, but it might also mean savings.

Both reduce your tax bill but in different ways. Tax credits directly reduce the amount of tax you owe, dollar for dollar. A tax credit valued at $1,000, for instance, lowers your tax bill by $1,000.

Tax deductions, on the other hand, reduce how much of your income is subject to taxes. Deductions lower your taxable income by the percentage of your highest federal income tax bracket. For example, if you fall into the 25% tax bracket, a $1,000 deduction saves you $250.

This could be a sign that you’re having too much tax withheld from your paycheck and living on less of your earnings all year. You can use Form W-4 to reduce your withholding easily now so you don’t have to wait for the government to give you your money back later.

You can sign up for a payment plan on the IRS website. There are several to choose from, and they can provide peace of mind. Here’s how IRS installment plans work, plus some other options for paying a big tax bill.