Answer
If pay-as-you-go holiday pay was used for an employee who should have been accruing normal Annual Holidays, changing the checkbox only fixes future pays.
- Turn off Pay annual holidays as you go from the correct effective point.
- Review gross earnings, completed pays, and any holiday pay already paid.
- Calculate the Annual Holidays balance and any remediation required.
- Add opening or correcting manual adjustments in weeks.
- Keep notes explaining the correction and the period it covers.
Escalate if the employee has more than 12 months of history, a final pay, or a disputed entitlement.