Go straight to the source
The IRS maintains a single, searchable library of every current form, instruction booklet, and publication at irs.gov/forms-pubs. That's always the safest place to download an official, current-year copy — never a third-party site.
Commonly requested forms
- Form 1040 — U.S. Individual Income Tax Return
- Form W-4 — Employee's Withholding Certificate
- Form W-9 — Request for Taxpayer Identification Number and Certification
- Form 941 — Employer's Quarterly Federal Tax Return
- Form 1099-NEC / 1099-MISC — Reporting nonemployee compensation and miscellaneous income
- Form 4868 — Application for Automatic Extension of Time to File
Schedule K-1s
K-1 (Form 1065) K-1 (Form 1120-S) K-1 (Form 1041)
General & employer guides
Pub 1 Pub 15 Pub 15-A Pub 15-B Pub 17 Pub 51 Pub 54 Pub 80 Pub 225 Pub 334
Individual & family topics
Pub 463 Pub 501 Pub 502 Pub 503 Pub 504 Pub 505 Pub 509 Pub 519 Pub 523 Pub 524 Pub 525 Pub 526 Pub 527 Pub 529 Pub 530 Pub 531
Business & property
Pub 510 Pub 514 Pub 515 Pub 516 Pub 517 Pub 535 Pub 536 Pub 537 Pub 538 Pub 541 Pub 542 Pub 544 Pub 547 Pub 550 Pub 551 Pub 554 Pub 555 Pub 556 Pub 557 Pub 559 Pub 560 Pub 570 Pub 571 Pub 575 Pub 583 Pub 587
Retirement, investment & international
Pub 590-A Pub 590-B Pub 595 Pub 596 Pub 598 Pub 721 Pub 901 Pub 907 Form 911 Pub 915 Pub 925 Pub 926 Pub 936 Pub 939 Pub 946 Pub 957 Form 8839 Pub 969 Pub 970
Reference & specialty guides
Pub 1212 Pub 1345 Pub 1544 Pub 1771 Pub 1828 Pub 3079 Pub 3402 Pub 4221-PC Pub 4221-NC Pub 4557
Prefer to just browse by keyword? The IRS Tax Glossary and the IRS site search both work well for tracking down a specific form or publication by name.
Forms aren't the hard part
Finding a form is easy. Filling it out correctly — and knowing which ones actually apply to your situation — is where most mistakes happen. If you're staring at a form and not sure what belongs on a particular line, that's exactly the kind of question we're happy to answer.