NIM16356 explains that where
the liability to pay those Class 1 NICs remains with the
employer, even though the employer may not have been involved. The
one exception to this rule is non-cash vouchers.
Section 10ZB of the SSCBA 1992 changes the normal Class 1
NICs liability on non-cash vouchers to Class 1A NICs liability
where the employer has no involvement in the award. The third party
is legally responsible for payment of the Class 1A NICs.
Non-cash vouchers provided by third parties are liable for
Class 1A NICs, even if the employee is within an excluded
employment, i.e. earning at a rate of less than £8,500.
Where a third party discharges the employee’s tax
liability on an award which attracts a Class 1A NICs liability,
further Class 1A NICs are due on the amount of tax paid. This
additional Class 1A NICs liability is also payable by the third
party.