The Utah withholding account number is a 14-character number. The first eleven characters are numeric and the last three are "WTH.If you are required to complete a financial declaration you must complete all of it and use the court-approved form. Fill out the appropriate PDF form for either Financial System or Financial System plus Payroll EBT access. If you're not finding the forms you need, contact us at or Click here to contact the web navigator. To file online, use TAP to file your Utah withholding tax return, Form TC-941. LLC. Enter the tax classification (C = C corporation, S = S corporation, P = Partnership) . . . . See What is backup withholding, later. How do I sign-up for Direct Deposit? Please fill out the Direct Deposit form and submit the original, signed form to the payroll office.