The Employments Rights Act 1996, sections 13 – 27 determine the circumstances in which:
Your employer is not entitled to make any deduction from your wages unless:
The right for you not to suffer deductions does not apply where the purpose of the deduction is reimbursement of:
Furthermore, such deductions do not apply to a deduction of your wages:
Finally, such deductions do not apply to a deduction in pursuance of any arrangements which have been established:
and under which your employer is to deduct and pay over to a third person amounts notified to your employer by that person as being due to him from the worker, if the deduction is made in accordance with the relevant notification by that person.
Your employer is not entitled to receive a payment from you in your capacity as worker or employee. Your rights and the exceptions broadly mirror those pertaining to the right not to suffer unlawful deductions.
The definition of wages includes: