Recommended by IRS
About Form 1120-S, U.S. Income Tax Return for an S CorporationInformation about Form 1120-S, U.S. Income Tax Return for an S Corporation, including recent updates, related forms, and instructions on how to file.
Form 1120-S
PDF
PDF version of Form 1120-S.
Instructions for Form 1120-S
PDF
Instructions explaining how to file Form 1120-S.
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ITG FAQ #9 Answer - What are my filing requirements if I own a business?
Insights into individual tribal members' filing requirements.
General Information
Indian Tribal Governments
FAQs for Indian tribal governments regarding individuals: Filing requirements
Insights into individual tribal members' filing requirements.
General Information
Indian Tribal Governments