Please correct your employee's exemption details, such as spouse and child relief, as follows before you reprocess their pay records:
Go to the Payroll module.
Click Modules, Income Tax, Income Tax Details, and find the employee.
Ensure all the settings are correctly set up (eg, Income Tax number, Spouse Working, Tax Priority, Child relief, etc.) and click Save.
Go to Pay Record and highlight the Employee.
Click Reprocess and Confirm.
Also refer to computing the correct PCB in EasyPay.