If this indicator is set, accumulation is not used when the withholding tax is calculated.
If accumulation is active, the accumulated withholding tax base amount in the current period (month, quarter, year) is added to the withholding tax base amount of line item, for which the withholding tax amount is to be calculated. The withholding tax amount is calculated by applying the withholding tax rate or the relevant scale to this figure, then subtracting the withholding tax amount accumulated over the period in question. The current withholding tax base amount and the withholding tax amount are added to the appropriate values in the accumulation table. The accumulated amount is entered in the relevant local currency of the company code according to the vendor/customer account, withholding tax type and withholding tax code.