The employer should operate PAYE on a payment chargeable by virtue of Section 225 ITEPA 2003. If the employer fails to deduct tax under PAYE tax offices should treat that as a PAYE failure and take the appropriate action.
In certain circumstances a payment may be made by a person who
is not the individual's employer in the contractual sense. See
example
EIM03624. The PAYE regulations require
the payer to deduct tax under PAYE at basic rate and pay it over to
the collector.
The individual has the responsibility to return and self
assess any higher rate liability.