Instructions for Form 943-X - Introductory Material


Future Developments

For the latest information about developments related to Form 943-X and its instructions, such as legislation enacted after they were published, go to www.irs.gov/form943x.

What's New

Correcting wages subject to Additional Medicare Tax withholding.   Beginning in 2013, wages subject to Additional Medicare Tax withholding are reported on Form 943, line 6, and the withholding is reported on line 7. Any errors discovered on a previously filed Form 943 are corrected on Form 943-X, line 8. For more information about Additional Medicare Tax withholding, see the Instructions for Form 943 and go to IRS.gov and enter "Additional Medicare Tax" in the search box. See the instructions for line 8 for more information on the types of errors that can be corrected and how the correction is reported on Form 943-X.

Social security tax rate for 2013.   The employee social security tax rate is 6.2% and the employer social security tax rate is 6.2% (12.4% total). In 2011 and 2012, the employee social security tax rate was 4.2% and the employer social security tax rate was 6.2% (10.4% total). Be sure to use the correct rate when reporting corrections on line 6.

Reminders

Qualified employer’s social security tax exemption expired.   The qualified employer's exemption for their share (6.2%) of social security tax on wages paid to qualified employees expired on December 31, 2010. Any errors discovered on a previously filed 2010 Form 943 for this exemption are corrected on Form 943-X, lines 10a and 10b.

Qualified employer's social security tax credit.   Qualified employers were allowed a credit of their share (6.2%) of social security tax on wages paid to qualified employees after March 18, 2010, and before April 1, 2010. Any errors discovered on a previously filed 2010 Form 943 for this credit are corrected on Form 943-X, lines 18c and 18d.

Advance payment of earned income credit (EIC).   The option of receiving advance payroll payments of EIC expired on December 31, 2010. Any errors discovered on a previously filed Form 943 for a tax year ending before January 1, 2011, are corrected on Form 943-X, line 17.

Correcting the COBRA premium assistance credit.   Employers who make COBRA premium assistance payments for assistance eligible individuals are allowed a credit for the payments on Form 943. Any errors discovered on a previously filed Form 943 for this credit or for the number of individuals provided COBRA premium assistance are corrected on Form 943-X. See the instructions for lines 18a and 18b, later.


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