# FT5518 - Unable to continue - Error occurred while calculating Pension

You will get this error when you carry out payroll activities in the Bureau /
Client without logging out after you initiated the "Start New Tax Year" process.



Please remember that after you Confirm "Start New Tax Year" by Clicking on the
Start New Tax Year button, you should sign out and sign in to ensure that you
are indeed in the New Tax Year and then resume all payrun activities.


This is required since when you start a new tax year, data in the previous tax
year is frozen and cannot be changed or rolled back.


If you ignore the "Start New Tax Year" warning and go about performing payroll
activities such as creating new employees without signing out and signing in,
then you will get this FT5518 error when you process payrun for such employees
at a later point of time.


In that case you need to delist the employees and recreate them in the current
tax year to be able to process the pay without any issues.