Many closely held businesses are conducted through S corporations, which are pass-through entities for federal income tax purposes, and expenses related to the businesses of such corporations are often paid by owners who also work in the business.  Where the individuals providing services are also owners of the business, and payment of expenses is made in a manner roughly proportional to stock ownership, it may not matter to the owners as an economic matter whether the expenses are ultimately reimbursed by the entity to the individual service providers.  However, there is an obvious adverse economic consequence if expenses are borne or reported in a manner that precludes deducting them for income tax purposes.