If you're migrating from another payroll system mid-year or an employee is joining mid-year and has a P45 then you'll want to enter Opening Balances, or Year-to-date (YTD) values.
To access these values go to an employee record and click the "More" button to the far right.
Choose "Opening Balances" from the drop-down menu that appears and you'll be taken to the relevant page.
Whilst P45 figures can be entered at any point, the rest of the values must be entered before your first payment to an employee.
This is because when you finalise an employees first payrun, the resulting values (YTD, plus values from that payrun) are used as the starting point for the next payrun.
You can override the YTD values used as a starting point for a payrun, but we strongly advise you only do this is you fully understand the implications of what you're doing.
First click your user avatar at the top-right and choose Edit Profile. Then go to the Display Preferences tab.
Tick the box to enable the "Show YTD Button" option.
Now when you view a payslip you will see a YTD button which you can click to view the YTD values being used and override any you want to.
If any YTD values are currently being overridden then an exclamation mark will be shown in the YTD button.
Overridden values are used for the current payrun. The next payrun will revert to normal behaviour as it's starting point will be the overridden YTD values from the previous payrun plus the in-period values from the previous payrun.
You may need to make an adjustment to the NIC table summaries for an employee.
These are used to calculate the NIC due on a payrun and the values are also reported to HMRC on an FPS.
To edit the NIC Table Summaries after you've started paying an employee you must have either an open payrun or an un-submitted FPS as this is where the changes will be stored.
Go to the employees Opening Balances page.
Scroll down to the NIC Table Summaries section and click the Edit NIC Table Summaries button.
From the resulting page you can edit the NIC Table Summaries used for the employee. Any FPSes that have already been submitted wont be modified, only open payruns and un-submitted (and future) FPSes will be updated.