US Income Tax Return for an S Corporation

Skip to main content


Information For…

For you and your family

International Taxpayers
Individuals abroad and more

Business & Self Employed
EINs and other information

Government Entities


Filing For Individuals

How to File

When to File

Where to File

Update My Information



Extension to File

Get Your Tax Record

Free File

Employer Identification Number (EIN)

Get an Identity Protection PIN (IP PIN)


Pay By

Bank Account (Direct Pay)

Debit or Credit Card

Payment Plan (Installment Agreement)

Electronic Federal Tax Payment System (EFTPS)



View Your Account

Withholding Calculator

Estimated Taxes



Close-up of money

Wheres My Refund?


What to Expect

Direct Deposit

Reduced Refunds

Fix/Correct a Return


Information For…

For you and your family

Business & Self Employed
Standard mileage and other information



Earned Income Credit (EITC)

Child Tax Credit

Standard Deduction

Health Coverage

Retirement Savings


Forms and Instructions

Form 1040
Individual Tax Return

Form 1040 Instructions
Instructions for Form 1040

Form W-9
Request for Taxpayer Identification Number (TIN) and Certification

Form 4506-T
Request for Transcript of Tax Return



Form W-4
Employees Withholding Allowance Certificate

Form 941
Employers Quarterly Federal Tax Return

Form W-2
Employers engaged in a trade or business who pay compensation

Form 9465
Installment Agreement Request


Popular For Tax Pros

Form 1040-X
Amend/Fix Return

Form 2848
Apply for Power of Attorney

Form W-7
Apply for an ITIN

Circular 230
Rules Governing Practice before IRS


About Form 1120-S, U.S. Income Tax Return for an S Corporation

  • English

More In Forms and Instructions

  • Current Year
  • Prior Year
  • Accessible
  • eBooks
  • Browser Friendly
  • Post Release Changes to Forms
  • Order Forms and Pubs
  • Help with Forms and Instructions

Use this form to report the income, gains, losses, deductions, credits, etc., of a domestic corporation or other entity for any tax year covered by an election to be an S corporation.

Current Products

Form 1120S

Instructions for Form 1120S ( HTML )

Recent Developments

2017 Fiscal Tax Year Filers Must Use Blended Corporate Tax Rates  

Tax Reform Guidance for 1120 filers — 09-APR-2018

2017 Tax Benefits Provided by the Bipartisan Budget Act of 2018 — 14-MAR-2018

Reporting Related to IRC Section 965 on 2017 Returns — 08-MAR-2018

Other Items You May Find Useful

All Form 1120S Revisions

S Corporations

About Publication 15 (Circular E) , Employer’s Tax Guide

About Publication 51 (Circular A) , Agricultural Employer’s Tax Guide

About Publication 535 , Business Expenses

Additional Publications You May Find Useful

Other Current Products

Comment on Form 1120S

Use the Comment on Tax Forms and Publications web form to provide feedback on the content of this product. Although we cannot respond individually to each comment, we do appreciate your feedback and will consider all comments submitted.

CAUTION: We cannot respond to tax-related questions submitted using this page. Instead, please see our Tax Law Questions page.

Related Items

About Form 1120S Related Schedules

Form 720, Quarterly Federal Excise Tax Return

About Form 940

About Form 943

About Form 944

About Form 945

About Form 982

About Form 1125-A

About Form 1120S Additional Related Forms