About Form 941-X, Adjusted Employer's Quarterly Federal Tax Return or Claim for Refund

Use Form 941-X to correct errors on a Form 941 that you previously filed.

Current revision

Instructions for Form 941-X (Print version PDF)

Recent developments

Electronic filing of some amended employment tax returns is now available -- 17-JULY-2024

Certain forms, instructions, and publications used by taxpayers in Puerto Rico have been replaced -- 14-MAR-2024

Other items you may find useful

All Form 941-X revisions

About Form 941-X (PR), Adjusted Employer's Quarterly Federal Tax Return or Claim for Refund (Puerto Rico Version)

Notice 2015-2, Application of Retroactive Increase in Excludable Transit Benefits

Notice 2016-06, Application of Retroactive Increase in Excludable Transit Benefits

Notice 2016-55, Treatment of Amounts Paid to Section 170(c) Organizations under Employer Leave-Based Donation Programs to Aid Victims of Severe Storms and Flooding in Louisiana that Began on August 11, 2016

Other current products

Related items

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

About Publication 80, Circular SS - Federal Tax Guide for Employers in the U.S. Virgin Islands, Guam, American Samoa, and the Commonwealth of the Northern Mariana Islands

About Publication 179 (Circular PR), Federal Tax Guide for Employers in Puerto Rico

About Publication 556, Examination of Returns, Appeal Rights, and Claims for Refund

Publication 966, Electronic Federal Tax Payment System (EFTPS) (PDF)

Page Last Reviewed or Updated: 05-Jun-2025