Documents needed to file taxes: what to gather and when it arrives
To file a US federal return you need proof of what you earned, proof of what you paid that can reduce your tax, and the details that identify you and your household. Most of it arrives by itself in late January and February; the trouble is the paper that does not. This guide is general information, not tax advice, so check the details with a preparer or the IRS for your situation.
Identity and household
- Social Security numbers (or ITINs) and birth dates for you, your spouse and any dependents
- A photo ID if your preparer asks for one
- Bank routing and account number for a direct-deposit refund
- Last year's return, which a new preparer will want and software often imports
Income you were paid
- Form W-2 from every employer, including short-term and part-time jobs
- Form 1099-NEC or 1099-MISC for freelance, contract or gig work
- Form 1099-K from payment apps and marketplaces
- Form 1099-INT and 1099-DIV for interest and dividends
- Form 1099-B or a broker's year-end statement for stock or crypto sales
- Form 1099-R for pension, IRA or 401(k) payouts, and Form SSA-1099 for Social Security
- Form 1099-G for unemployment pay or state refunds
- Schedule K-1 from a partnership, S corporation, estate or trust
- Your own records of rent received and any income with no form, such as cash tips
Costs that can lower your tax
- Form 1098 for mortgage interest, and your property tax bill
- Form 1098-T for tuition and Form 1098-E for student loan interest
- Receipts or an annual statement for charitable gifts
- Childcare provider's name, address, tax ID and the total you paid
- Form 1095-A if you had marketplace health insurance (you need it to reconcile the premium credit)
- Form 5498 for IRA contributions, and HSA statements
- Receipts and a mileage log if you are self-employed
Payments you already made
- Estimated tax payments for the year, with dates and amounts
- Any amount you paid with an extension request
- A prior-year refund you chose to apply to this year, if any
When the forms usually arrive
Employers and payers generally have to send W-2s and most 1099s to you by the end of January, so mid-February is a sensible point to start checking. Brokerage 1099-B and some K-1s can come later, in February or March, and corrected versions sometimes follow. Starting to file before every form is in is the most common reason for an amended return, so make a list in January and tick items off as they come in.
If a document is late or missing
Contact the payer first, because they can resend it or give you the figures. If it still has not turned up, tell your preparer: they can often see some forms through your IRS account or work from year-end statements and pay stubs, and they will advise whether to wait, file on an extension or proceed with what you have. Do not leave income out because the form is missing; the IRS also receives a copy.
How to keep it from piling up
Put every form in one folder as it arrives, scanned or photographed, and name the files by payer. Keep a running list of what you expect, such as one W-2 per job and one 1099 per bank or broker, so the missing one is obvious. How long to keep the records depends on your situation, so ask your preparer.
For tax preparers
This is the list your clients are searching for; the preparer-side workflow is in our tax preparation checklist guide (/guides/tax-preparation-checklist). Send it as a request instead of a PDF they will lose: DocNag gives each client one private upload link, shows you exactly which items are in, and reminds them about the rest. The checklist below is prefilled with the individual-return items.
Want a ready-made version? See the free tax organizer template and the tax documents checklists by occupation.
Frequently asked questions
What documents do I need to file my taxes?
Proof of identity and household (Social Security numbers or ITINs, last year's return, bank details for a refund), income forms such as W-2s and 1099s, documents for costs that can lower your tax such as 1098, 1098-T and childcare details, and records of estimated tax payments you already made. This is general information, not tax advice.
When do tax forms like W-2 and 1099 arrive?
Employers and payers generally have to send W-2s and most 1099s by the end of January, so mid-February is a sensible time to start checking. Brokerage 1099-B and some K-1s can come in February or March, and corrected versions sometimes follow.
What if a tax document is late or missing?
Contact the payer first so they can resend it or give you the figures. If it still has not turned up, tell your preparer, who will advise whether to wait, file on an extension or proceed. Do not leave income out because the form is missing; the IRS also receives a copy.
Why should I wait for all my forms before filing?
Starting to file before every form is in is the most common reason for an amended return. Make a list of expected forms in January and tick items off as they arrive.
Skip the copy-paste
Turn this into a request in two minutes. DocNag sends your client one private upload link, tracks what's missing and sends the reminders for you.
Use the "Individual tax return documents" checklist in DocNagFree plan, no card needed. Or see a live demo first.
Comparing tools? See the Financial Cents alternative and Content Snare alternative comparisons, or all comparisons.
More guides
- Month-end document checklist for bookkeepers (copy and use)
- Tax document checklist for individual clients (for tax preparers)
- Email templates for requesting documents from clients (first ask, reminder, final notice)
- How to get clients to send documents on time (without becoming the nag)
- Engagement letter clause for late client documents (examples and what to include)
- Tax season 2027: a document-request timeline for tax preparers
- Document collection software for bookkeepers and accountants: what to look for
- Collecting client documents with email, Dropbox or Google Drive: what works and where it breaks
- What to do when a client never sends their documents (a step-by-step escalation)
- Bookkeeping client onboarding checklist: 30 items to collect from a new client
- A 5-email reminder sequence for missing client documents (with timing and wording)
- Late document fee: how much to charge clients (and how to word it)
- How to run a month-end close in 3 days (a day-by-day plan for bookkeepers)
- Client intake questionnaire for bookkeepers: what to ask before you start
- Tax preparation checklist: a step-by-step list for preparers and clients
- Bank statement formats: what to ask clients to send (and what to refuse)
- Best tools to collect documents from clients (2026 roundup)
- What Your Bookkeeper Needs From You Each Month
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- Year-end document request schedule for bookkeepers
- Extension or Wait? When Client Docs Are Missing
- Tax season client reminder email templates (kickoff to final notice)
- Missing receipts: what a bookkeeper can do when the client has lost them
- Text message and phone scripts for clients who won't send documents
- How to let go of a client who won't send documents (with a notice letter)
- What to say when a client has an excuse for missing documents (copy-ready replies)
- Cheapest way to collect documents from clients: monthly cost at 10, 20 and 40 clients (2026)
- Collect documents from clients without a client login or portal account (2026)
- Free software to collect documents from clients: what 'free' really means (2026)
- Uncategorized transactions: how to ask clients about them (email templates)
- How to ask clients to scan and name documents (instructions to copy)
- Client says they already sent the documents: how to respond and prevent it
- When to drop a client who won't send documents (and the letter to send)
- Client can't find or download their bank statements: what to ask for instead
- Client sent the wrong, partial or unreadable documents: how to ask again without friction