Your first tax return is not a test. There are no surprises waiting to ambush you. There is just a small pile of paperwork and a few decisions that are easier to make when you understand what they actually mean.
Here are the six things to know before you file.
1. You almost certainly do not owe anything scary
If you had one job and your W-2 says you already paid tax through withholdings, you are fine. Most first-time filers either break even or get a refund. Breathe.
2. You need three things
Your W-2 from each employer. A photo ID. And a bank account number if you want a direct-deposit refund. That is it for the simple case.
3. Filing is free if your income is low
IRS Free File, the IRS website itself, or a VITA site near you will prepare and file your return without charging you. You do not need TurboTax or H&R Block unless your situation is complicated.
4. Do not round
Every number goes in exactly as it appears on the form. Round nothing. Estimate nothing. The IRS has the same numbers you do, and an approximation is how you invite an audit.
5. The deadline is real, the extension is not what you think
If you cannot file by April 15, file Form 4868 to push the filing deadline to October. This is not extra time to pay — interest still accrues on anything you owe from April 16 forward.
6. Keep the paperwork for three years
Not two, not forever. Three. That is how long the IRS has to audit you, and after that they cannot.
The full version — including what to do if you had two jobs, how freelance income changes things, and the twenty-minute walkthrough of Form 1040 — is in the book.