Per Revenue Regulations (RR) No. 2-98, Sec. 2.78.1 (A) (3),:
Facilities and privileges of a relatively small value. - Ordinarily, facilities and privileges (such as entertainment, medical services, or so called "courtesy"discounts on purchases), furnished or offered by an employer to his employees generally, are not considered as compensation subject to withholding if such facilities or privileges are relatively small value and are offered or furnished by the employer merely as a means of promoting the health, goodwill, contentment, or efficiency of his employees.
