Use this form to correct errors on a previously filed Form 943. Current revision Form 943-X PDF Instructions for Form 943-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 Information about filing Form 943-X for 2020 -- 28-JAN-2021 Other items you may find useful All Form 943-X revisions Notice 2016–06 provides guidance on issues related to the retroactive increase in the monthly transit benefit exclusion for the period from January 1, 2015, through December 31, 2015. Notice 2017-23 provides interim guidance and request for comments; election by qualified small business to claim payroll tax credit for increasing research activities. About Publication 15, (Circular E), Employer's Tax Guide About Publication 51, (Circular A), Agricultural Employer's Tax Guide Other current products Related items About Form 843, Claim for Refund and Request for Abatement About Form 943, Employer's Annual Federal Tax Return for Agricultural Employees About Form 943 (PR), Employer's Annual Tax Return for Agricultural Employees (Puerto Rican Version) About Form 943-A, Agricultural Employer's Record of Federal Tax Liability About Form 943-A (PR), Agricultural Employer's Record of Federal Tax Liability (Puerto Rican Version) About Form W-2, Wage and Tax Statement About Form W-2 (AS), American Samoa Wage and Tax Statement About Form W-2 C, Corrected Wage and Tax Statements About Form W-2 (GU), Guam Wage and Tax Statement About Form W-2 (VI), U.S. Virgin Islands Wage and Tax Statement About Form W-3, Transmittal of Wage and Tax Statements About Form W-3 C, Transmittal of Corrected Wage and Tax Statements About Form W-3 (SS), Transmittal of Wage and Tax Statements