The OnPay Mobile app lets you update your withholding and filing information. If you don’t have access to OnPay, contact your employer.
Editing withholding status
Tap the menu icon in the upper left, then tap Job.
Scroll down to the withholding tile, and tap Edit.
Enter your new information into your Form W-4. When you've finished, tap Request Change to have your information reviewed by a supervisor or manager.
Why you can only “request change”
Your personal details are used by OnPay when filing taxes and employment reports on your employer’s behalf. In order to comply with government regulations, personal details have to match the forms we file. The change request process helps your employer ensure this accuracy.