Filing your federal tax return: the step-by-step checklist

Gather your papers

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Find the Social Security numbers of everyone on your return.
You, your spouse and your dependents, as written on their Social Security cards.
Collect your Form W-2 from every employer you had during the year.
It shows your pay and the tax withheld. If one is missing, ask your employer.
Collect the Forms 1099 you got: freelance pay, interest, dividends, brokerage sales, retirement and unemployment.
Report this income even if you did not get a form.
Add mortgage interest (1098), tuition (1098-T), Marketplace insurance (1095-A) and Social Security (SSA-1099).
Keep last year’s return at hand, and your bank details for the refund.
Last year’s return shows your income, deductions and the carryovers that continue this year.
If you are self-employed, add up your income and your business expenses.
The self-employment tax calculator on this site shows what you owe.

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Check whether you qualify for IRS Free File, and always start at IRS.gov/freefile.
Guided software is free up to an income limit (adjusted gross income of $89,000 in the latest season), and each partner has its own rules. Fillable Forms are free at any income (IRS).
Otherwise, pick tax software or a paid tax professional.
A professional can help with a business, a home sale, investments or a complicated year.
File electronically with direct deposit if you can.
The IRS says the typical e-filed refund takes 3 weeks, against 6 weeks or more for a mailed return (IRS).

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Pick your filing status: single, married filing jointly or separately, head of household.
It sets your brackets and your standard deduction.
Add all your income for the year.
Take the adjustments you qualify for: HSA, student loan interest, deductible IRA contributions, half of your self-employment tax.
They lower your income before the deduction.
Compare the standard deduction with your itemized deductions, and take the larger.
For 2026 the standard deduction is $16,100 single, $32,200 married filing jointly and $24,150 head of household (IRS).
Claim your credits: Child Tax Credit, Earned Income Credit, education and energy credits.
The Child Tax Credit is $2,200 for each child under 17 in 2026 (IRS).
Report your home or investment sales.
A home sale is reported if you get a Form 1099-S or cannot exclude all the gain (IRS). Sales go on Form 8949 and Schedule D.
Compare the tax with what was withheld and paid in estimated tax.
The difference is your refund or the amount you owe.

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Review everything: names, Social Security numbers, bank account numbers and the math.
The common mistakes that delay a refund include forgetting to sign and math errors (IRS).
File, or request an extension, by the April filing deadline.
An extension gives you until October 15 to file, but not to pay (IRS).
Pay any tax you owe by the April deadline, even if you file later.
You can pay online by bank account or card, or set up a payment plan.
Sign the return (e-file does this for you) and keep a copy.
File your state return too, if your state has an income tax.

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Wait for the email that the IRS has accepted your return, and fix and resend it if it is rejected.
Most rejected returns can be corrected and sent again before the deadline (IRS).
Track your refund with “Where’s My Refund?” on IRS.gov or the IRS app.
The status is available 24 hours after you e-file (IRS).
Know the reasons for a delay.
Returns with the Earned Income Credit are held until mid-February by law, and the Additional Child Tax Credit takes longer to review (IRS).
If you find a mistake, file an amended return.
Keep your return and the papers behind it somewhere safe.
Check your W-4 withholding so next year’s refund or bill is what you want.
The IRS Tax Withholding Estimator helps; check your withholding every January (IRS).