You'll have to set up both items in the employee's profile so our program will calculate it, Mgmccpa12.

Although, 401k will also calculate on the wage since it's a deduction item.

I'll show you on how you can add them in the employee's profile:

1. Click Employees, then go to Employee Center.
2. Double-click the employee name to open their profile, then go to the Payroll Info tab.
3. Under Additions, Deductions, and Company Contributions, add the tips and 401k. 
4. Click OK. 

When you create the paycheck, these items will show.

If there's any other payroll questions, please don't hesitate to leave a comment below.