Can I change the pay period on the payslip of a terminated employee?

Hi there Bermuda1

It's important that all your payroll information be entered correctly so that all your yearly payroll totals be accurate. QuickBooks Online Payroll is a great tool able to help you pay your employees for their hours worked as well as calculate the deductions on this pay. I can point you in the right direction for assistance with editing payroll dates.

In order to get assistance with editing a payroll that was run in the system, you'd need to reach out to the QuickBooks Online support team outside of the Community. They'll be able to view your payroll with you in the system to help you with filling a pay edit request to get the pay period adjusted for this incorrectly dated paycheque. You can reach out to them using one of these methods:

Schedule a Callback or start a Chat: click (?)Help in the upper right > type and enter "Contact support" into the QB Assistant > click Contact Us > explain your situation > click Let's Talk > choose Get a callback or Start a Chat.
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If you have any other questions, feel free to reach out here.