Hi JM65,
It's a good thing that you were able to reverse an incorrect pay run to correct the year-to-date figures of your employee. However, if it's showing an incorrect amount on your STP, I would highly suggest sending an update event for the correct payroll year. Also, you can check your payroll reports, such as the payroll register, payroll activity, and YTD verification report, to see if they have the correct figures. When sending an update and checking payroll reports, detailed steps can be found here. Just in case you need further assistance, you can create a post again.
Best regards,
Doreen