2026 Tax Documents Checklist: W-2, 1099s, and Everything You Need to File

Filing season goes a lot faster when every document is in one place before you sit down to file. This checklist organizes everything you're likely to need for your 2026 federal income tax return by category, so nothing gets missed before the April 15 deadline.

Income Documents

W-2 — wages from each employer you worked for during the year
1099-NEC / 1099-MISC — payments received as a contractor, freelancer, or gig worker
1099-INT — interest income from banks and savings accounts
1099-DIV — dividend income from stocks, funds, or brokerage accounts
1099-B — proceeds from sales of stocks, bonds, or other investments
K-1 — income from a partnership, S-corp, or trust you have an interest in

Deduction Documents

1098 — mortgage interest paid, from your mortgage lender
1098-E — student loan interest paid, from your loan servicer
Receipts for charitable donations and other itemizable expenses (if itemizing on Schedule A)
Records of retirement contributions — 401(k), Traditional IRA, or HSA — for reference against the annual limits
Records of childcare expenses if claiming the Child and Dependent Care Credit

Health Coverage Documents

1095-A — if you purchased coverage through the Health Insurance Marketplace
1095-B / 1095-C — if you had employer-sponsored or other minimum essential coverage

Identity Documents

Social Security card or ITIN for yourself, your spouse, and each dependent
Prior-year AGI — required by the IRS to verify your identity when e-filing
Bank account and routing number for direct deposit of any refund

Pre-Filing Checklist

Gather every income document listed above for the full tax year
Gather deduction and credit documentation, even if you're unsure whether you'll itemize
Run a quick estimate with a tax calculator before filling out your actual return
Confirm your bank account details for direct deposit of any refund

See the full 2026 federal tax deductions guide for what each of these documents unlocks.

Frequently Asked Questions

I'm missing a document — what do I do? Contact the issuer directly (employer, bank, brokerage, or loan servicer) to request a duplicate. Most 1099 and W-2 forms are also available through the issuer's online portal.

Can I fix a mistake after I've already filed? Yes — file an amended return (Form 1040-X) to correct errors or add missed deductions within the time limits the IRS allows.