How do I update an existing employee details with P45 details from another job? This is in standard payroll.

Thanks for joining us on the Community, graham-blenkinso!

If you've already submitted payroll for this employee you will not be able to enter the P45 information in the Pay History section of the employee. Instead, you would need to roll back the payroll to the period that the employee was first paid, enter the YTD info from the P45, and re-run the payroll to date, submitting the FPS as a 'Correction to Earlier Submission' from within the payroll taxes tab after this. 

If you have any questions on the process of this, please reach out below. 🙂