Changing PAYE Details for an Employee on Strike 
As tax refunds are withheld from employees who are on strike, you must ensure that you change their PAYE details for any period of strike action.
Procedure
The Maintain HR Master Data screen appears.
The Copy Tax Data GB screen appears.
A message appears informing you that the end date of the previous record will be delimited.
Result
Any tax refund due to the employee is withheld until you create a new record when the employee resumes work.