Publications
- Publication 15, Circular E, Employer's Tax Guide
 - Publication 15-A, Employer's Supplemental Tax Guide PDF
 - Publication 225, Farmer's Tax Guide
 - Publication 334, Tax Guide for Small Business (For Individuals Who Use Schedule C)
 - Publication 463, Travel, Gift, and Car Expenses
 - Publication 505, Tax Withholding and Estimated Tax
 - Publication 535, Business Expenses
 - Publication 541, Partnerships
 - Publication 587, Business Use of Your Home (Including Use by Daycare Providers)
 - Publication 4591, Small Business Federal Tax Responsibilities PDF
 - Publication 5369, Gig Economy and Your Taxes: Things to Know PDF
 
Forms and instructions
- Form 1040, U.S. Individual Income Tax Return PDF
 - Instructions for Form 1040
 - Form 1040-SR, U.S. Tax Return for Seniors PDF
 - Schedule C (Form 1040 or 1040-SR), Profit or Loss from Business PDF
 - Instructions for Schedule C (Form 1040 or 1040-SR), Profit or Loss from Business PDF
 - Schedule F (Form 1040), Profit or Loss from Farming PDF
 - Instructions for Schedule F (Form 1040 or 1040-SR), Profit or Loss from Farming PDF
 - Schedule SE (Form 1040 or 1040-SR), Self-Employment Tax PDF
 - Instructions for Schedule SE (Form 1040 or 1040-SR), Self-Employment Tax PDF
 - Schedule K-1 (Form 1065), Partner's Share of Income, Credits, Deductions, etc. PDF
 - Instructions for Schedule K-1 (Form 1065), Partner's Share of Income PDF