Filing for the first time ever
What a tax return actually does, the documents you need, how to file for free, and the four mistakes that turn a simple first return into a letter in June.
Quick answers
- I have never filed. Where do I start?
- Gather every income form you received, check whether you are required to file, then use one of the free filing routes. If tax was withheld and you owed none, filing is how you get it back.
- What do I enter for last year's income if I have never filed?
- The IRS tells first-time filers to create a new self-select PIN or enter zero as the prior-year adjusted gross income. Guessing a number is why many first electronic returns are rejected.
- How long until the refund arrives?
- Most electronically filed returns with direct deposit are refunded within about three weeks. Paper returns take considerably longer, and a return that needs review takes longer still.
A tax return adds up what you earned, subtracts what the law lets you subtract, works out the tax, and compares it with what was already withheld. If more was withheld than you owe, the difference comes back.
How a return works, in five sentences
Start with income: wages, contract payments, interest, anything else that came in. Take off the adjustments you qualify for and then the standard deduction, which for a single filer in 2025 is $15,750. The tax is figured on what is left, not on what you earned. Credits then come off the tax itself, and some of them can pay out even when the tax reaches zero. Finally the return compares the tax with what was already paid in through withholding.
Withholding is a prepayment, and a refund is the difference between the prepayment and the actual bill. How refunds work walks through that comparison, and deductions and credits explains why the two do very different things.
Do you even have to file
Whether you are required to file depends on your income, your filing status and your age, and who must file sets out the thresholds. Being under them is not the end of the question.
If tax was withheld from a paycheck and you turned out to owe none, filing is the only way to get it back. Some credits are refundable, meaning they can produce money you never paid in, and you cannot receive them without a return.
What to gather
Collect a Form W-2 from every job you held during the year, any 1099 forms that arrived, and your own records of income nobody reported to you. Add last year's return if you have one, a Social Security number or ITIN for everyone who will appear on the return, your bank account and routing numbers, and receipts for anything you plan to claim.
Do this before you open any software. Most first returns that go wrong go wrong because a form arrived after the return was filed.
How to file without paying
Four routes cost nothing. IRS Free File offers guided software if your adjusted gross income is $89,000 or less, and Free File Fillable Forms if it is higher. Volunteer preparers help people who generally make $69,000 or less, and there are separate free services for military members and veterans. The free filing routes compares them and covers how to choose a paid preparer if you would rather have one.
The first-timer trap: signing the return
An electronic return has to be signed, and the signature is either last year's adjusted gross income or a five-digit self-select personal identification number. A first-time filer has neither, which is where a lot of first returns bounce.
The IRS's Free File instructions answer it directly: if you have never filed before, you can create a new self-select personal identification number, or enter zero as the prior-year adjusted gross income. Do that rather than guessing a number or leaving it blank. Other software may word the question differently, so read the prompt and look for the never-filed option.
E-file or paper
Electronic filing with direct deposit is the fastest and the most accurate route, and most refunds arrive within 21 days. A paper return takes weeks longer just to appear in the system.
The IRS has also moved away from sending paper refund checks for most taxpayers, so having a bank account matters more than it used to. If you do not have one, opening an account or getting a prepaid card before you file is worth the trouble.
The four mistakes
A name that does not match Social Security's record will stop the return; file under the name on the card, not a shortened or married version you have not registered. A mistyped Social Security number for a dependent produces a rejection that looks alarming and is usually a typing error, so check each digit against the card. Wrong bank details send a refund into limbo, so copy the account and routing numbers from a statement rather than from memory. And filing before every form has arrived means amending later, so wait until the pile stops growing.
When it is filed
Check the status about a day after an electronic return goes in; a paper return takes around four weeks to show up at all. Keep a copy of the return and everything it was built from, because next year's software will ask for this year's figures. Checking a refund, an amended return or a payment covers the trackers, and reading an IRS notice covers the letter that occasionally follows.