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What this category covers
This page groups IRS forms related to corporate tax (1120 series).
Forms for corporations to report income, deductions, and tax liability. Includes standard corporations (1120), S corporations (1120-S), and specialized entity types.
The 1120 series covers corporate income tax reporting for all types of business corporations. Form 1120 is used by C corporations that are taxed as separate entities, while Form 1120-S is for S corporations that elect pass-through taxation. Specialized variants include Form 1120-F for foreign corporations, Form 1120-RIC for regulated investment companies, and Form 1120-REIT for real estate investment trusts. These forms require detailed reporting of gross income, cost of goods sold, deductions, credits, and calculation of taxable income. Corporate returns are due by the 15th day of the 4th month after the corporation's tax year ends.
This page groups IRS forms related to corporate tax (1120 series).
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U.S. Corporation Income Tax Return
IRS Form 1120 — U.S. Corporation Income Tax Return. Official IRS tax form with AI-powered guidance.
1120-F (Schedule H)
IRS Form 1120-FH — 1120-F (Schedule H). Official IRS tax form with AI-powered guidance.
1120-F (Schedule I)
IRS Form 1120-FI — 1120-F (Schedule I). Official IRS tax form with AI-powered guidance.
IRS forms related to corporate tax (1120 series).
U.S. Corporation Income Tax Return
IRS Form 1120 — U.S. Corporation Income Tax Return. Official IRS tax form with AI-powered guidance.
1120-F (Schedule H)
IRS Form 1120-FH — 1120-F (Schedule H). Official IRS tax form with AI-powered guidance.
1120-F (Schedule I)
IRS Form 1120-FI — 1120-F (Schedule I). Official IRS tax form with AI-powered guidance.
1120-F (Schedule P)
IRS Form 1120-FP — 1120-F (Schedule P). Official IRS tax form with AI-powered guidance.
1120-F (Schedule Q)
IRS Form 1120-FQ — 1120-F (Schedule Q). Official IRS tax form with AI-powered guidance.
1120-F (Schedule S)
IRS Form 1120-FS — 1120-F (Schedule S). Official IRS tax form with AI-powered guidance.
U.S. Income Tax Return of a Foreign Sales Corporation
IRS Form 1120-FSC — U.S. Income Tax Return of a Foreign Sales Corporation. Official IRS tax form with AI-powered guidance.
1120-FSC (Schedule P)
IRS Form 1120-FSP — 1120-FSC (Schedule P). Official IRS tax form with AI-powered guidance.
1120-F (Schedule V)
IRS Form 1120-FV — 1120-F (Schedule V). Official IRS tax form with AI-powered guidance.
1120-IC-DISC
IRS Form 1120-ICD — 1120-IC-DISC. Official IRS tax form with AI-powered guidance.
1120-IC-DISC (Schedule K)
IRS Form 1120-IDK — 1120-IC-DISC (Schedule K). Official IRS tax form with AI-powered guidance.
1120-IC-DISC (Schedule P)
IRS Form 1120-IDP — 1120-IC-DISC (Schedule P). Official IRS tax form with AI-powered guidance.
1120-IC-DISC (Schedule Q)
IRS Form 1120-IDQ — 1120-IC-DISC (Schedule Q). Official IRS tax form with AI-powered guidance.
Return for Nuclear Decommissioning Funds and Certain Related Persons
IRS Form 1120-ND — Return for Nuclear Decommissioning Funds and Certain Related Persons. Official IRS tax form with AI-powered guidance.
U.S. Property and Casualty Insurance Company Income Tax Return
IRS Form 1120-PC — U.S. Property and Casualty Insurance Company Income Tax Return. Official IRS tax form with AI-powered guidance.
U.S. Income Tax Return for Certain Political Organizations
IRS Form 1120-POL — U.S. Income Tax Return for Certain Political Organizations. Official IRS tax form with AI-powered guidance.
1120-REIT
IRS Form 1120-REI — 1120-REIT. Official IRS tax form with AI-powered guidance.
U.S. Income Tax Return for Regulated Investment Companies
IRS Form 1120-RIC — U.S. Income Tax Return for Regulated Investment Companies. Official IRS tax form with AI-powered guidance.
1120 (Schedule B)
IRS Form 1120-SB — 1120 (Schedule B). Official IRS tax form with AI-powered guidance.
1120 (Schedule D)
IRS Form 1120-SD — 1120 (Schedule D). Official IRS tax form with AI-powered guidance.
U.S. Income Tax Return for Settlement Funds (Under Section 468B)
IRS Form 1120-SF — U.S. Income Tax Return for Settlement Funds (Under Section 468B). Official IRS tax form with AI-powered guidance.
1120 (Schedule G)
IRS Form 1120-SG — 1120 (Schedule G). Official IRS tax form with AI-powered guidance.
1120 (Schedule H)
IRS Form 1120-SH — 1120 (Schedule H). Official IRS tax form with AI-powered guidance.
1120 (Schedule N)
IRS Form 1120-SN — 1120 (Schedule N). Official IRS tax form with AI-powered guidance.
1120 (Schedule O)
IRS Form 1120-SO — 1120 (Schedule O). Official IRS tax form with AI-powered guidance.
1120 (Schedule PH)
IRS Form 1120-SPH — 1120 (Schedule PH). Official IRS tax form with AI-powered guidance.
1120-S (Schedule B-1)
IRS Form 1120-SSB — 1120-S (Schedule B-1). Official IRS tax form with AI-powered guidance.
1120-S (Schedule D)
IRS Form 1120-SSD — 1120-S (Schedule D). Official IRS tax form with AI-powered guidance.
1120-S (Schedule K-1)
IRS Form 1120-SSK — 1120-S (Schedule K-1). Official IRS tax form with AI-powered guidance.
1120 (Schedule UTP)
IRS Form 1120-UTP — 1120 (Schedule UTP). Official IRS tax form with AI-powered guidance.
U.S. Income Tax Return for Cooperative Associations
IRS Form 1120C — U.S. Income Tax Return for Cooperative Associations. Official IRS tax form with AI-powered guidance.
U.S. Income Tax Return of a Foreign Corporation
IRS Form 1120F — U.S. Income Tax Return of a Foreign Corporation. Official IRS tax form with AI-powered guidance.
U.S. Income Tax Return for Homeowners Associations
IRS Form 1120H — U.S. Income Tax Return for Homeowners Associations. Official IRS tax form with AI-powered guidance.
U.S. Life Insurance Company Income Tax Return
IRS Form 1120L — U.S. Life Insurance Company Income Tax Return. Official IRS tax form with AI-powered guidance.
U.S. Income Tax Return for an S Corporation
IRS Form 1120S — U.S. Income Tax Return for an S Corporation. Official IRS tax form with AI-powered guidance.
Amended U.S. Corporation Income Tax Return
IRS Form 1120X — Amended U.S. Corporation Income Tax Return. Official IRS tax form with AI-powered guidance.
Authorization and Consent of Subsidiary Corporation to be Included in a Consolidated Income Tax Return
IRS Form 1122 — Authorization and Consent of Subsidiary Corporation to be Included in a Consolidated Income Tax Return. Official IRS tax form with AI-powered guidance.
Cost of Goods Sold
IRS Form 1125A — Cost of Goods Sold. Official IRS tax form with AI-powered guidance.
Compensation of Officers
IRS Form 1125E — Compensation of Officers. Official IRS tax form with AI-powered guidance.
Application for Extension of Time for Payment of Tax Due to Undue Hardship
IRS Form 1127 — Application for Extension of Time for Payment of Tax Due to Undue Hardship. Official IRS tax form with AI-powered guidance.
Application To Adopt, Change, or Retain a Tax Year
IRS Form 1128 — Application To Adopt, Change, or Retain a Tax Year. Official IRS tax form with AI-powered guidance.
Corporation Application for Tentative Refund
IRS Form 1139 — Corporation Application for Tentative Refund. Official IRS tax form with AI-powered guidance.
1120-F Schedules M-1, M-2
IRS Form 1120FM1 — 1120-F Schedules M-1, M-2. Official IRS tax form with AI-powered guidance.
1120-S (Schedule K-2)
IRS Form 1120SK2 — 1120-S (Schedule K-2). Official IRS tax form with AI-powered guidance.
1120-F (Schedule M-3)
IRS Form 1120FM3 — 1120-F (Schedule M-3). Official IRS tax form with AI-powered guidance.
IRS Form 1120LM3
IRS Form 1120LM3. Official IRS tax form with AI-powered field-by-field guidance.
1120-L (Schedule M-3)
IRS Form 1120LS3 — 1120-L (Schedule M-3). Official IRS tax form with AI-powered guidance.
1120-PC (Schedule M-3)
IRS Form 1120PM3 — 1120-PC (Schedule M-3). Official IRS tax form with AI-powered guidance.
1120-S (Schedule K-3)
IRS Form 1120SK3 — 1120-S (Schedule K-3). Official IRS tax form with AI-powered guidance.
1120 (Schedule M-3)
IRS Form 1120SM3 — 1120 (Schedule M-3). Official IRS tax form with AI-powered guidance.
1120-S (Schedule M-3)
IRS Form 1120SS3 — 1120-S (Schedule M-3). Official IRS tax form with AI-powered guidance.
IRS Form 1120S23
IRS Form 1120S23. Official IRS tax form with AI-powered field-by-field guidance.
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