Concurrent employment by two or more employers
For purposes of sections 3301, 3302, and 3306(b)(1), if two or more related corporations concurrently employ the same individual and compensate such individual through a common paymaster which is one of such corporations, each such corporation shall be considered to have paid as remuneration to such individual only the amounts actually disbursed by it to such individual and shall not be considered to have paid as remuneration to such individual amounts actually disbursed to such individual by another of such corporations.