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About Form, 1120 U.S. Corporation Income Tax Return

Information about Form, 1120 U.S. Corporation Income Tax Return, including recent updates, related forms and instructions on how to file.

Form 1120 PDF
PDF version of Form 1120.
Instructions for Form 1120 PDF
Instructions explaining how to file Form 1120.

Form 1120-POL – Final return

Form 1120-POL – Final Return (527 organizations).
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Charities and Nonprofits

Form 1120-POL - Contents of return

Overview of information reported on Form 1120-POL.
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Charities and Nonprofits

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 is used by corporations that elect to be S corporations to report income, deductions, gains, losses, etc.
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Corporations

SOI Tax Stats -Table 21 - Returns of active corporations, other than Forms 1120-REIT, 1120-RIC, and 1120S

Table 21: Returns of Active Corporations, Other Than Forms 1120-REIT, 1120-RIC, and 1120S
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Tax Professionals

SOI Tax Stats - Table 12 - Returns of active corporations, other than Forms 1120-REIT, 1120-RIC and 1120S

Table 12: Returns of Active Corporations, Other Than Forms 1120-REIT, 1120-RIC, and 1120S Corporation Source Book
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Tax Professionals

SOI Tax Stats - Table 22 - Returns of active corporations, other than Forms 1120S, 1120-REIT and 1120-RIC

Table 22: Returns of Active Corporations, Other Than Forms 1120S, 1120-REIT, and 1120-RIC Corporate Source Book
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Tax Professionals

SOI Tax Stats - Table 16 - Returns of active corporations, Form 1120

Table 16: Returns of Active Corporations, Form 1120
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Tax Professionals

SOI Tax Stats - Table 8 - Returns of active corporations, Form 1120-A

Table 8: Returns of Active Corporations, Form 1120-A
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Tax Professionals

Political Organization Filing Requirements: Deductions Allowed on Form 1120 POL

Political Organization Filing Requirements: Deductions Allowed on Form 1120-POL
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Charities and Nonprofits

Where to file your taxes for Form 1120-S

Find out where to mail your completed form.
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Individuals