Hi there RTM83054,
Thanks for reaching out about your payroll taxes. QuickBooks Desktop Payroll is a great tool able to help you pay your employees for the hours they've worked. I can point you in the right direction to make employee changes in payroll.
To edit an employee, including their Tax amounts and TD1 information, you can use the steps in this article to create a new employee to help locate you in your employee's profile to make changes to their TD1 form to have an additional amount taken for income tax.
If you have any other questions, feel free to reach out here.
