Marking employee as leaver ..

Hello and welcome to the Community, CML1999

In this scenario, you would roll back the payroll and mark the employee as a leaver in the pay period that you last paid them. The payroll would then be re-run and the P45 document will be produced. 

If you have already submitted the RTI information to HMRC, you'll also need to re-submit the generated FPS from QuickBooks as a correction to earlier submission.

This overwrites any information HMRC have previously received for that pay period, preventing duplication from the submissions. 

If you need any further guidance on the steps to take to rollback payroll, please get back in touch below with the version you're using (QuickBooks Core or Advanced Payroll).