When using the setting 'Employment cost regulation: Settle employer payroll tax automatically / Pay off "First period next year" ', the amount of final charge is used incorrectly in the second (or subsequent) year. The amount of final charge already settled in last year is taken into account in the new amount. We are investigating this issue.
To prevent incorrect final charges in the payroll tax declaration, disable the setting to automatically settle the final charge and add the correct value through [employees > payroll > final charges/tax reductions]. Our apologies for the inconvenience.