Partnerships that have effectively connected taxable income (ECTI) allocable to foreign partners can use this worksheet to determine the proper estimated section 1446 tax payments. Current Revision Form 8804-W PDF Instructions for Form 8804-W (Print Version PDF) Recent Developments None at this time. Other Items You May Find Useful All Form 8804-W Revisions Other Current Products Related About Form 1040, U.S. Individual Income Tax Return About Form 1065, U.S. Return of Partnership Income About Form 8804, Annual Return for Partnership Withholding Tax (Section 1446) About Form 8805, Foreign Partner's Information Statement of Section 1446 Withholding Tax About Form 8813, Partnership Withholding Tax Payment Voucher (Section 1446) About Form 8842, Election to Use Different Annualization Periods for Corporation Estimated Tax