Forms Forms W-4 Employee Federal Withholding Form W-9 Vendor(1099) Federal Withholding Form DE-4 Employee State Withholding Form SS-4 Application for Federal Tax Identification Number DE-1 Application for State Tax Identification Number IRS Pub - Guide to Starting a New Business iPay Solutions, Inc. 77530 Enfield Bldg I Ste 101 Palm Desert, CA. 92211 Get Directions (760) 340-1188 info@i-pay-solutions.com Get Started