Not all casual payments are tax-free; HMRC’s miscellaneous income rules may apply depending on the circumstances.

The special miscellaneous income rules sweep-up provisions that seek to charge tax on certain income. This unusual provision, which is broad in scope, catches income that would not otherwise be charged under specific provisions to Income Tax or Corporation Tax.

A casual payment may be considered taxable miscellaneous income when it is received as a reward for a service that was performed under some form of agreement, arrangement, or common understanding that payment would be made.

This is different from a genuine gift or token of appreciation given voluntarily after a service, where there was no agreement, arrangement or common expectation for such a reward. These gifts are not taxable under the same provisions.

The distinction can be difficult to define. For example, in Brocklesby v Merricks (1934), the court highlighted the importance of an arrangement or entitlement to a share of earnings to make a receipt taxable. As a result, it is essential to review the specific circumstances of each case to determine whether a payment qualifies as taxable income or a non-taxable gift.