Recommended by IRS

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).
General Information
Charities and Nonprofits

Form 1120-POL - Contents of return

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

Political Organization Filing Requirements: Deductions Allowed on Form 1120 POL

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

About Form 2220, Underpayment of Estimated Tax By Corporations

Information about Form 2220, Underpayment of Estimated Tax By Corporations, including recent updates, related forms, and instructions on how to file. Form 2220 is used by corporations, certain tax-exempt organizations, and private foundations to determine whether they are subject to the penalty for underpayment of estimated tax, and if so, the amount of the penalty.
General Information
Charities and Nonprofits, Corporations

Political organization filing requirements: Form 1120-POL

Political Organization Filing Requirements: Form 1120-POL
General Information
Charities and Nonprofits

Political Organization Filing Requirements: Consequences of Not Paying Tax Due on Form 1120 POL

Political Organization Filing Requirements: Consequences of Not Paying Tax Due on Form 1120-POL
General Information
Charities and Nonprofits

Political Organization Filing Requirements: Form 1120 POL Reporting by Organization that Did Not Report Required Items on Form 8871

Political Organization Filing Requirements: Form 1120-POL Reporting by Organization that Did not Report Required Items on Form 8871
General Information
Charities and Nonprofits

Political organizations - Annual income tax returns (Form 1120-POL)

Discussion of annual income tax returns that must be filed by certain tax-exempt political organizations under Code section 527.
General Information
Charities and Nonprofits

Return due dates for exempt organizations - Form 990-T (corporations)

Return Due Dates for Exempt Organizations: Form 990-T (corporations)
General Information
Charities and Nonprofits

Political organization filing requirements: Public disclosure of Form 1120-POL

Political organization filing requirements: Public disclosure of Form 1120-POL
General Information
Charities and Nonprofits