This potentially amounts to an unlawful deduction from wages, which is dealt with under the Employment Rights Act 1996.
Under law, an employer can only make deductions from, or withhold an employee’s wages in the following circumstances:
· If it is legally allowed (e.g. to deduct tax)
· If it is to recover an earlier overpayment of wages made by the employer
· If the contract specifically allows for the deductions to be made
· If the employee has given their explicit written consent
If none of the above exemptions apply, the deductions will most likely be unlawful and in your case the above conditions allowing for this deduction do not appear to have been met.
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