I've got the information you need, CindyMc3.
You can modify the UBI number by following these steps:
- Go to Taxes > Payroll Taxes.
- Under Taxes, click the Edit your tax setup link.
- Scroll down and select Washington. When you get a blank page, scroll up and you will see the details.
- Update the number from the Unified Business Identifier (UBI) Number field.
- Hit the OK button.
I'm also adding this article for reference: Changing a state account number.
Please let me know if you need anything else. I'll be around to help you some more. Take care.