Here is a solution.
1. Select "OR" as the state tax for this employee ABC.
2. Add a new pay type "WA Pay".
- You can add by hourly pay type
https://www.halfpricesof...te-paycheck-by-shift.asp 3. I added a paycheck for Employee ABC, enter 60 hours and click "Calculate Check" button. I write the amount for state tax. (Note: I did not save the check.)
4. I enter the 100 hours for WA Pay, and click "Calculate Check" button. All tax amounts updates.
5. I check the option "Enable Tax Manual Input", change the state tax value to the amount in step 2.
6. Click "Save check" button.
Please try it.