Can I change the tax deductions for some of the employees at the time I do the payroll?

Hello salberton2-gmail,

Welcome to Community!  QuickBooks Online Payroll automatically calculates the taxes for each employee, based on government guidelines.  If the calculations are not accurate, it's important to contact us outside of Community, where we can review the issue in more depth.  This will enable us to work with you directly and review your payroll setup, to ensure accuracy in pay cheques, forms, reports and remittances.  

If you have any other questions, feel free to reach out.  We would be glad to help!