Notwithstanding that the regular assessment in respect of any fringe benefits is to be made in a later assessment year, the tax on such fringe benefits shall be payable in advance during any financial year, in accordance with the provisions of section 115WJ, in respect of the fringe benefits which would be chargeable to tax for the assessment year immediately following that financial year, such fringe benefits being hereafter in this Chapter referred to as the "current fringe benefits".