To claim credit for Utah withholding tax, complete TC-40W, page 1. Employees who work in a locality with state income tax must fill out a withholding form.Learn which state W-4 form your employees must use. The upper-tier partnership must provide a Utah Schedule K-1 showing the amount of Utah withholding tax paid on behalf of the lower-tier partnership. Complete Form W-4 so that your employer can withhold the correct federal income tax from your pay. Give Form W-4 to your employer. I'm going to show you how to send the form 17 to your sellers have them be able to fill out all of the boxes get it back and then be able to deliver it. A complete statement on this subject can be found in your tax form instructions. Preparer e-file mandate. State taxes and forms we file.