A fringe benefit determination calling for a specified benefit such as health insurance contemplates a fixed and definite contribution to a “bona fide” plan (as that term is defined in
§ 4.171) by an employer on behalf of each employee, based on the monetary cost to the employer rather than on the level of benefits provided. Therefore, in determining compliance with an applicable fringe benefit determination, the amount of the employer's contribution on behalf of each individual employee governs. Thus, as set forth in
§ 4.172, if a determination should require a contribution to a plan providing a specified fringe benefit and that benefit can be obtained for less than the required contribution, it would be necessary for the employer to make up the difference in cash to the employee, or furnish equivalent benefits, or a combination thereof. The following illustrates the application of this principle: A fringe benefit determination requires a rate of $36.40 per month per employee for a health insurance plan. The employer obtains the health insurance coverage specified at a rate of $20.45 per month for a single employee, $30.60 for an employee with spouse, and $40.90 for an employee with a family. The employer is required to make up the difference in cash or equivalent benefits to the first two classes of employees in order to satisfy the determination, notwithstanding that coverage for an employee would be automatically changed by the employer if the employee's status should change (e.g., single to married) and notwithstanding that the employer's average contribution per employee may be equal to or in excess of $36.40 per month.