IRS

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.

Example Forms in this Category

All 52 Forms in this Category

IRS forms related to corporate tax (1120 series).

IRSForm 1120

IRS Form 1120

IRS Form 1120. Official IRS tax form with AI-powered field-by-field guidance.

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IRSForm 1120-FH

1120-F (Schedule H)

IRS Form 1120-FH — 1120-F (Schedule H). Official IRS tax form with AI-powered guidance.

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IRSForm 1120-FI

1120-F (Schedule I)

IRS Form 1120-FI — 1120-F (Schedule I). Official IRS tax form with AI-powered guidance.

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IRSForm 1120-FP

1120-F (Schedule P)

IRS Form 1120-FP — 1120-F (Schedule P). Official IRS tax form with AI-powered guidance.

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IRSForm 1120-FQ

1120-F (Schedule Q)

IRS Form 1120-FQ — 1120-F (Schedule Q). Official IRS tax form with AI-powered guidance.

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IRSForm 1120-FS

1120-F (Schedule S)

IRS Form 1120-FS — 1120-F (Schedule S). Official IRS tax form with AI-powered guidance.

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IRSForm 1120-FSC

IRS Form 1120-FSC

IRS Form 1120-FSC. Official IRS tax form with AI-powered field-by-field guidance.

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IRSForm 1120-FSP

1120-FSC (Schedule P)

IRS Form 1120-FSP — 1120-FSC (Schedule P). Official IRS tax form with AI-powered guidance.

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IRSForm 1120-FV

1120-F (Schedule V)

IRS Form 1120-FV — 1120-F (Schedule V). Official IRS tax form with AI-powered guidance.

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IRSForm 1120-ICD

1120-IC-DISC

IRS Form 1120-ICD — 1120-IC-DISC. Official IRS tax form with AI-powered guidance.

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IRSForm 1120-IDK

1120-IC-DISC (Schedule K)

IRS Form 1120-IDK — 1120-IC-DISC (Schedule K). Official IRS tax form with AI-powered guidance.

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IRSForm 1120-IDP

1120-IC-DISC (Schedule P)

IRS Form 1120-IDP — 1120-IC-DISC (Schedule P). Official IRS tax form with AI-powered guidance.

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IRSForm 1120-IDQ

1120-IC-DISC (Schedule Q)

IRS Form 1120-IDQ — 1120-IC-DISC (Schedule Q). Official IRS tax form with AI-powered guidance.

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IRSForm 1120-ND

IRS Form 1120-ND

IRS Form 1120-ND. Official IRS tax form with AI-powered field-by-field guidance.

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IRSForm 1120-PC

IRS Form 1120-PC

IRS Form 1120-PC. Official IRS tax form with AI-powered field-by-field guidance.

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IRSForm 1120-POL

IRS Form 1120-POL

IRS Form 1120-POL. Official IRS tax form with AI-powered field-by-field guidance.

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IRSForm 1120-REI

1120-REIT

IRS Form 1120-REI — 1120-REIT. Official IRS tax form with AI-powered guidance.

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IRSForm 1120-RIC

IRS Form 1120-RIC

IRS Form 1120-RIC. Official IRS tax form with AI-powered field-by-field guidance.

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IRSForm 1120-SB

1120 (Schedule B)

IRS Form 1120-SB — 1120 (Schedule B). Official IRS tax form with AI-powered guidance.

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IRSForm 1120-SD

1120 (Schedule D)

IRS Form 1120-SD — 1120 (Schedule D). Official IRS tax form with AI-powered guidance.

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IRSForm 1120-SF

IRS Form 1120-SF

IRS Form 1120-SF. Official IRS tax form with AI-powered field-by-field guidance.

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IRSForm 1120-SG

1120 (Schedule G)

IRS Form 1120-SG — 1120 (Schedule G). Official IRS tax form with AI-powered guidance.

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IRSForm 1120-SH

1120 (Schedule H)

IRS Form 1120-SH — 1120 (Schedule H). Official IRS tax form with AI-powered guidance.

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IRSForm 1120-SN

1120 (Schedule N)

IRS Form 1120-SN — 1120 (Schedule N). Official IRS tax form with AI-powered guidance.

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IRSForm 1120-SO

1120 (Schedule O)

IRS Form 1120-SO — 1120 (Schedule O). Official IRS tax form with AI-powered guidance.

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IRSForm 1120-SPH

1120 (Schedule PH)

IRS Form 1120-SPH — 1120 (Schedule PH). Official IRS tax form with AI-powered guidance.

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IRSForm 1120-SSB

1120-S (Schedule B-1)

IRS Form 1120-SSB — 1120-S (Schedule B-1). Official IRS tax form with AI-powered guidance.

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IRSForm 1120-SSD

1120-S (Schedule D)

IRS Form 1120-SSD — 1120-S (Schedule D). Official IRS tax form with AI-powered guidance.

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IRSForm 1120-SSK

1120-S (Schedule K-1)

IRS Form 1120-SSK — 1120-S (Schedule K-1). Official IRS tax form with AI-powered guidance.

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IRSForm 1120-UTP

1120 (Schedule UTP)

IRS Form 1120-UTP — 1120 (Schedule UTP). Official IRS tax form with AI-powered guidance.

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IRSForm 1120C

1120-C

IRS Form 1120C — 1120-C. Official IRS tax form with AI-powered guidance.

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IRSForm 1120F

1120-F

IRS Form 1120F — 1120-F. Official IRS tax form with AI-powered guidance.

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IRSForm 1120H

1120-H

IRS Form 1120H — 1120-H. Official IRS tax form with AI-powered guidance.

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IRSForm 1120L

1120-L

IRS Form 1120L — 1120-L. Official IRS tax form with AI-powered guidance.

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IRSForm 1120S

1120-S

IRS Form 1120S — 1120-S. Official IRS tax form with AI-powered guidance.

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IRSForm 1120X

1120-X

IRS Form 1120X — 1120-X. Official IRS tax form with AI-powered guidance.

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IRSForm 1122

IRS Form 1122

IRS Form 1122. Official IRS tax form with AI-powered field-by-field guidance.

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IRSForm 1125A

1125-A

IRS Form 1125A — 1125-A. Official IRS tax form with AI-powered guidance.

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IRSForm 1125E

1125-E

IRS Form 1125E — 1125-E. Official IRS tax form with AI-powered guidance.

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IRSForm 1127

IRS Form 1127

IRS Form 1127. Official IRS tax form with AI-powered field-by-field guidance.

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IRSForm 1128

IRS Form 1128

IRS Form 1128. Official IRS tax form with AI-powered field-by-field guidance.

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IRSForm 1139

IRS Form 1139

IRS Form 1139. Official IRS tax form with AI-powered field-by-field guidance.

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IRSForm 1120FM1

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.

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IRSForm 1120SK2

1120-S (Schedule K-2)

IRS Form 1120SK2 — 1120-S (Schedule K-2). Official IRS tax form with AI-powered guidance.

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IRSForm 1120FM3

1120-F (Schedule M-3)

IRS Form 1120FM3 — 1120-F (Schedule M-3). Official IRS tax form with AI-powered guidance.

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IRSForm 1120LM3

IRS Form 1120LM3

IRS Form 1120LM3. Official IRS tax form with AI-powered field-by-field guidance.

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IRSForm 1120LS3

1120-L (Schedule M-3)

IRS Form 1120LS3 — 1120-L (Schedule M-3). Official IRS tax form with AI-powered guidance.

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IRSForm 1120PM3

1120-PC (Schedule M-3)

IRS Form 1120PM3 — 1120-PC (Schedule M-3). Official IRS tax form with AI-powered guidance.

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IRSForm 1120SK3

1120-S (Schedule K-3)

IRS Form 1120SK3 — 1120-S (Schedule K-3). Official IRS tax form with AI-powered guidance.

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IRSForm 1120SM3

1120 (Schedule M-3)

IRS Form 1120SM3 — 1120 (Schedule M-3). Official IRS tax form with AI-powered guidance.

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IRSForm 1120SS3

1120-S (Schedule M-3)

IRS Form 1120SS3 — 1120-S (Schedule M-3). Official IRS tax form with AI-powered guidance.

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IRSForm 1120S23

IRS Form 1120S23

IRS Form 1120S23. Official IRS tax form with AI-powered field-by-field guidance.

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