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.

Mortgage & interest expense for individuals with partnership interests Form 1116 and Sch. K-3 - YouTube video text script

Mortgage & interest expense for individuals with partnership interests Form 1116 and Sch. K-3 - YouTube video text script
General Information
Tax Professionals

EP Examination Process Guide - Discrepancy adjustments

This program allows EP agents to make certain line adjustments to income tax returns with respect to issues arising from an examination of a return of a qualified retirement plan or an exempt organization with respect to tax adjustments to Forms 1040 and 1120.
General Information
Administrators

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

Taxes Security Together

Information about how the IRS, states and the tax industry came together in 2015 to identify safeguards to protect taxpayer federal and state tax accounts from identity thieves.
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Individuals, Tax Professionals

SIMPLE IRA plan

Find out about the Savings Incentive Match Plan for Employees (SIMPLE). The plan allows employees and employers to contribute to traditional IRAs.
General Information
Administrators