EIM13870 - Termination payments and benefits: employer's PAYE responsibilities
Section 401 ITEPA 2003
A payment chargeable under Section 401 ITEPA 2003 is subject to the PAYE Regulations. So the payer must deduct tax if a sum is chargeable after applying the threshold, exceptions and relief (see EIM13500 and subsequent guidance).
For guidance on the PAYE position in respect of non-cash benefits see the PAYE Manual at 72035.
The Employer's Further Guide to PAYE and NICs (CWG2) tells the employer what to do.