Employers and non-employers in Puerto Rico file this form to obtain an Employer Identification Number (EIN). Current revision Form SS-4 (PR) (in Spanish) PDF Instructions for Form SS-4 (PR) (in Spanish) (Print version (in Spanish) PDF) Recent Developments Certain forms, instructions, and publications used by taxpayers in Puerto Rico have been replaced -- 14-MARCH-2024 Other items you may find useful All Form SS-4 (PR) revisions Apply for an Employer Identification Number (EIN) online About Publication 15, (Circular E), Employer's Tax Guide About Publication 51, (Circular A), Agricultural Employer's Tax Guide About Publication 179 (Circular PR), Federal Tax Guide for Employers in Puerto Rico Other current products Related items About Form 11-C, Occupational Tax and Registration Return for Wagering About Form 637, Application for Registration (For Certain Excise Tax Activities) About Form 720, Quarterly Federal Excise Tax Return About Form 944, Employer's Annual Federal Tax Return About Form 990-T, Exempt Organization Business Income Tax Return (and proxy tax under section 6033(e))
