Schedule C (PDF) and Instructions (PDF)
Use Schedule C (Form 1040) to report income or loss from a business you operated or a profession you practiced as a sole proprietor.
Schedule C - EZ (PDF)
Small businesses and statutory employees with expenses of $5,000 or less may be able to file Schedule C-EZ instead of Schedule C.
Publication 334 (2011), Tax Guide for Small Business (For Individuals Who Use Schedule C or C-EZ)
Publications and Forms for the Self-Employed
A collection of forms and publications related to understanding and fulfilling your filing requirements.