Note:

Form 1042-S, Foreign Person's U.S. Source Income Subject to Withholding, is processed with a File Location Code 60, Tax Class 5 and Document Code 02 for paper documents.

A signed Competent Authority Letter is acceptable in lieu of a Form 1042-S. The Competent Authority Letter must be signed and state the withholding amount allowed and the correct tax year.

Form 1042-S must be filed on or before March 15th. Taxpayers may request a 30 day extension of time to file Form 1042-S by filing a completed Form 8809, Application for Automatic Extension of Time to File Information Returns. An additional 30 day extension may be requested by filling out a second Form 8809.