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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.

SOI Tax Stats - Table 1 - Returns of active corporations, Form 1120S

S Corporations - Table 1
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Tax Professionals

SOI Tax Stats - Returns of active corporations, Form 1120s - Table 7

Table 14: returns of active corporations, form 1120S
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SOI Tax Stats - Table 4 - Returns of active corporations, Form 1120s

S Corporation - Table 4
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Tax Professionals

SOI Tax Stats - Table 9 - Corporation returns with net income, Form 1120-A

Table 9: Corporation Returns With Net Income, Form 1120-A Corporate Complete Report
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Tax Professionals

About Form 1120-IC-DISC, Interest Charge Domestic International Sales Corporation Return

Information about Form 1120-IC-DISC, Interest Charge Domestic International Sales Corporation Return, including recent updates, related forms and instructions on how to file. This is an information return filed by interest charge domestic international sales corporations (IC-DISCs), former DISCs, and former IC-DISCs.
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S corporation ESOP guidance

Guidance and other useful information to assist in understanding issues that may exist with S corporation ESOPs.
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Administrators

S corporation tax shelter

A description of how S corporations involve charities in abusive tax avoidance transactions.
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Charities and Nonprofits

Corporate alternative minimum tax

The corporate alternative minimum tax is a tax created under the Inflation Reduction Act of 2022.
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Businesses

About Publication 542, Corporations

Publication 542 discusses the general tax laws that apply to ordinary domestic corporations.
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LLC filing as a corporation or partnership

Review information about the Limited Liability Company (LLC) structure and the entity classification rules related to filing as a corporation or partnership.
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Small Businesses