What documents you need to file taxes
The documents most people need to file taxes are last year's return, the wage form from each employer, any forms for freelance, interest or investment income, statements for a mortgage, student loan or tuition, records of expenses you want to ask a tax professional about, and bank details for a refund. Start a folder in January, tick each form off as it arrives, and file by mid-April or request an extension.
Why it matters: Most filing stress is hunting for forms; a folder started in January removes it.
Steps
- Start a paper or digital folder for this year's taxes in early January.
- Put last year's return in it first; it shows which forms to expect.
- Add the wage form from each employer as it arrives.
- Add forms for freelance, interest, investment or other income.
- Add statements for mortgage interest, student loan interest and tuition if they apply.
- Add records of expenses you plan to ask about, and your bank details for a refund.
- Choose how to file: the federal tax agency's free options, software or a paid preparer, and file by mid-April or request an extension.
Stop and call a professional if
- you are unsure what you can deduct, how to report income, or you received a notice from a tax agency: ask a tax professional
Questions to ask the professional
- Which forms should I expect this year given my income?
- Should I change my withholding?
Common mistakes
- Filing before every income form has arrived.
- Losing last year's return.
- Assuming an extension also extends the time to pay.
Outside the US or in another state: US federal and state tax rules and deadlines apply here; other countries use different forms and dates.
Teach this to someone
A one page sheet for showing a friend, a teenager or a parent: what to say, what to show, and one question to check it landed.
Teach: What documents you need to file taxes
What to say
The documents most people need to file taxes are last year's return, the wage form from each employer, any forms for freelance, interest or investment income, statements for a mortgage, student loan or tuition, records of expenses you want to ask a tax professional about, and bank details for a refund. Start a folder in January, tick each form off as it arrives, and file by mid-April or request an extension.
What to show
- Start a paper or digital folder for this year's taxes in early January.
- Put last year's return in it first; it shows which forms to expect.
- Add the wage form from each employer as it arrives.
- Add forms for freelance, interest, investment or other income.
- Add statements for mortgage interest, student loan interest and tuition if they apply.
- Add records of expenses you plan to ask about, and your bank details for a refund.
- Choose how to file: the federal tax agency's free options, software or a paid preparer, and file by mid-April or request an extension.
Where it stops
Stop and call a professional if you are unsure what you can deduct, how to report income, or you received a notice from a tax agency: ask a tax professional.
Check question
Why keep last year's return in the folder?
Answer: It shows which forms to expect. Most people get the same kinds of forms each year.
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Sources
- US federal tax agency guidance for individual filers, 2026. Reviewed September 28, 2026.
Written in our own words from the sources above. It is general information, not advice for your situation; where a professional, your doctor or your lease says something different, follow them.
Last reviewed . First published .