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Forms and Instructions Forms and Instructions
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Principal Publications Publications
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Related Publications
Publication 4162 Modernized e-File Test Package for Forms 1120/1120-S/1120-F/7004PDF version of this PublicationTopic Screen for this Publication
Links Inside Publications
Publication 538 - Accounting Periods and Methods - Accounting Periods and Methods
Publication 550 - Investment Income and Expenses - S Corporations
Publication 908 - Bankruptcy Tax Guide - Debt Cancellation
Publication 946 - How to Depreciate Property - How Much Can You Deduct?
heading icon Frequently Asked Questions
FAQ - Estimated Tax
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IRS.gov Web Site