The basic steps to file your income tax return

You file an income tax return by gathering your income documents, choosing a filing method, and submitting your completed return to the IRS before the deadline. The IRS accepts returns filed by mail, through tax software, or with the help of a tax professional. Most people file between January and April 15, though you can file earlier once you have all your documents.

The return itself is a form — usually the 1040 — that reports what you earned, what you owe in taxes, and what you've already paid through withholding or estimated tax payments. The IRS uses this to determine whether you owe money, are due a refund, or have paid the right amount.

Key Takeaways

  • Gather your W-2s from employers, 1099s from other income sources, and receipts for deductions before you start.
  • You can file using free IRS software, commercial tax software, a tax professional, or by mailing a paper form to the IRS.
  • The deadline to file is April 15 each year, though you can request a six-month extension if you need more time.
  • If you're due a refund, filing earlier means you receive it sooner; if you owe, filing by the deadline avoids penalties.

Gather your income documents before you file

Your employer sends you a W-2 form by January 31 if you worked as an employee. This shows your wages and the taxes already withheld. If you received income from sources other than an employer — freelance work, rental property, investment dividends, or unemployment benefits — you'll receive a 1099 form specific to that income type. Keep all of these documents together.

You'll also need records of deductions if you plan to claim them. This includes mortgage interest statements, property tax records, charitable donation receipts, medical expense documentation, or business expense records if you're self-employed. If you take the standard deduction instead — which most people do — you won't need to provide these receipts, but you should keep them in case the IRS asks questions later.

Decide which filing method works for your situation

The IRS Free File program offers free tax software to people who earned less than a certain income threshold in the tax year. You can access it through the IRS website and file electronically. This is the fastest way to file if you're within the income limit, because the software catches errors and the IRS processes electronic returns more quickly than paper ones.

Commercial tax software like TurboTax, H&R Block, or TaxAct walks you through your return step by step and costs money unless you may have access to for free versions. These programs are useful if your situation is straightforward — you have W-2 income, maybe some investment income, and standard deductions.

A tax professional — a CPA, enrolled agent, or tax preparer — can file for you if your situation is complex, you're self-employed, you own rental property, or you simply prefer not to do it yourself. They charge a fee, usually between $150 and $500 depending on complexity, but they handle the entire process and represent you if questions come up.

You can also file by mail using paper forms from the IRS website, though this is slower and more prone to errors. The IRS processes paper returns in about 21 days if everything is correct, compared to two to three weeks for electronic returns.

Complete your return with the right forms and schedules

Most people file using Form 1040, the main individual income tax return. Depending on your situation, you may also need to file additional forms or schedules. If you're self-employed, you'll file Schedule C to report business income and expenses. If you have rental income, you'll file Schedule E. If you're claiming itemized deductions instead of the standard deduction, you'll file Schedule A.

Tax software or a tax professional will ask you questions about your income and situation, then generate the correct forms automatically. If you're filing by mail, the IRS website has instructions for each form, and you can download them for free. The instructions explain which lines to fill in and how to calculate each number.

Double-check that you've entered your Social Security number correctly, that your income totals match your W-2s and 1099s, and that you've claimed only the deductions you're may have access to to. Errors delay processing and may trigger an audit.

Submit your return before the April 15 deadline

If you're filing electronically through software or a tax professional, you can submit your return as soon as it's complete. The IRS begins accepting returns in late January each year. Electronic filing is secure and you receive a confirmation number immediately.

If you're mailing a paper return, send it to the IRS address listed in the form instructions — the address varies by state. Mail it early enough that it arrives by April 15. The IRS uses the postmark date, not the arrival date, so if it's postmarked by April 15, it counts as on time even if it arrives later.

If you can't file by April 15, you can request an automatic six-month extension using Form 4868. This gives you until October 15 to file. However, an extension to file is not an extension to pay — if you owe taxes, you still owe them by April 15 or you'll face penalties and interest. Pay what you estimate you owe by April 15, then file your actual return by October 15.

Track your refund or payment after filing

If you filed electronically, the IRS typically processes your return within two to three weeks. You can check the status using the IRS "Where's My Refund?" tool on the IRS website, which updates every 24 hours. You'll need your Social Security number, filing status, and the refund amount.

If you're due a refund, you can choose to receive it by direct deposit to your bank account — this is faster than a paper check — or by mail. Direct deposit usually arrives within one to two weeks of approval. A paper check takes longer.

If you owe taxes, you can pay by credit card, debit card, electronic bank transfer, or check. Paying electronically is faster and the IRS accepts payment through approved payment processors on its website. If you can't pay in full by April 15, you can set up a payment plan with the IRS, though you'll owe interest and penalties on the unpaid amount.

Frequently Asked Questions

Do I have to file a tax return every year?

You must file if your income exceeds a certain threshold, which depends on your age, filing status, and type of income. Even if you're not required to file, you should file if taxes were withheld from your paychecks, because you may be due a refund. The IRS website has a tool to determine whether you must file.

What if I don't have all my documents by April 15?

Request an extension using Form 4868 to push your filing deadline to October 15. You can file the extension without having all your documents. However, pay any taxes you estimate you owe by April 15 to avoid penalties. File your actual return once you receive missing documents.

Can I file my return if I'm self-employed?

Yes. Self-employed people file using Form 1040 plus Schedule C, which reports business income and expenses. You'll also file Schedule SE to calculate self-employment tax. If your net profit is high, you may owe estimated taxes quarterly instead of waiting until April 15.

What happens if I make a mistake on my return after I file?

You can file an amended return using Form 1040-X within three years of the original filing date. This corrects errors, claims deductions you missed, or reports income you forgot. File the amended return by mail; the IRS will review it and send you a bill or refund depending on the change.

Is it better to file early or wait until closer to April 15?

Filing early is usually better if you're due a refund, because you receive it sooner. If you owe taxes, filing early gives you more time to arrange payment. The only reason to wait is if you're still gathering documents or waiting for forms from employers or financial institutions.