Recommended by IRS

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

Information about Form 1120-S, U.S. Income Tax Return for an S Corporation, including recent updates, related forms, and instructions on how to file.

Form 1120-S PDF
PDF version of Form 1120-S.
Instructions for Form 1120-S PDF
Instructions explaining how to file Form 1120-S.

SOI tax stats - Corporation data by type of return

Corporation Statistical Tables Classified by Return Type
About IRS

SOI tax stats - Corporation Source Book 2012 - Publication 1053

SOI tax stats - Corporation Source Book 2012 - Publication 1053
About IRS
Tax Professionals

SOI tax stats - Corporation Source Book, 2011 - Publication 1053

SOI Tax Stats - Corporation Source Book, 2011 - Publication 1053
About IRS
Tax Professionals

Schedules K-2 and K-3: Interim electronic filing for tax year 2021

Interim electronic filing direction for Schedules K-2 and K-3 in tax year 2021.
Software Development
Software Developers

Topic no. 407, Business income

Topic no. 407, Business income
Tax Topics

Understanding Your CP265 Notice

CP265 notice alerts you when we terminate a Subchapter S election.
General Information
Individuals

SOI Tax Stats – Corporation Source Book (Publication 1053)

Corporation Source Book.
About IRS

K-1 bar code certification process

If your company is creating bar coded Schedules K-1, you must receive certification for both the printed K-1, as well as the bar code before offering your product for sale.
Software Development
Software Developers

Failure to file penalty

Calculate, pay or remove the Failure to File Penalty when you don’t file your tax return by the due date.
General Information
Individuals, Businesses, Tax Professionals

IRS provides further details on additional relief for certain partnerships preparing schedules K-2 and K-3 for 2021

IR-2022-38, February 16, 2022 — The IRS today provided further details on additional transition relief for certain domestic partnerships and S corporations preparing the new schedules K-2 and K-3 to further ease the change to these new schedules. Those eligible for the relief will not have to file the new schedules for tax year 2021.
News
News Media, Corporations, Partnerships