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About Form 1120-S, U.S. Income Tax Return for an S Corporation

Information 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.

SOI Tax Stats - Corporation complete report 1994 to 2013

SOI Tax Stats - Corporation Complete Report 1994 to 2013
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SOI tax stats - S corporation statistics

Corporation Tax Statistics S-Corporations
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SOI Tax Stats - Corporation Income Tax Returns Complete Report (Publication 16)

Download the Corporation Complete Report publication, a collection of statistics sorted by industry, size of total assets and size of business receipts.
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SOI tax stats - Corporation data by size

Corporation Tax Statistics Data by Size
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Tax Professionals

SOI Tax Stats - S corporation statistics 1995 to 2013

SOI Tax Stats - S Corporation Statistics 1995 to 2013
About IRS

S corporations

By electing to be treated as an S corporation, an eligible domestic corporation can avoid double taxation.
General Information
Small Businesses

Test scenarios for Schedule K-1 2D bar codes

Test Scenarios for Schedule K-1 2D Bar Codes
Software Development
Software Developers

SOI tax stats - Corporation data by sector or industry

Corporation Tax Statistics Industry Data
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Tax Professionals

SOI tax stats - Corporation data by type of return

Corporation Statistical Tables Classified by Return Type
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SOI tax stats - Corporation Source Book 2012 - Publication 1053

SOI tax stats - Corporation Source Book 2012 - Publication 1053
About IRS
Tax Professionals