If you run payroll and receive the error message: [EMPLOYEESCONTRIBUTIONSONALLEARNINGSYEARTODATE] must be 0.00 if the [NILETTER] is 'X', 'C', 'S' or 'W' it is because HMRC are trying to balance the employees NI contributions against NI categories at year-end.
You need to review the history log for the employee who caused the error to see why the contribution has been recorded incorrectly this could be that you've refunded an employee whilst on a C rate category or made a manual adjustment to a category that shouldn't contain contributions.
To view the History log for an employee, follow the steps below.
Click Team then click the relevant employee.
Click History.
Where an employee has received a refund, follow the steps below.
Click Team from the left-hand navigation.
Click the relevant employee.
In the Personal tab, scroll down to Year to dates.
Make a note of the amount and remove any contributions relating to NI paid under the incorrect category.
Click Add a previous NIC letter code and select the relevant code.
Add the required information for the previous NI category.
Click Save.