As per law tax is dedcted at the time of invoice and payment which ever is earlier. In SAP TDS accumulation functionality tax can be accumulated as per tax type or tax code. We have one tax type for Invoice and one for payment. So if TDS is accumulated as per tac types then tds shall accumulate seperately for same TDS section. e.g. Sec 194C. CI is tax type for invoice and DC for payment. Min/ Max limit is set 75000. Now if we get an invoice of 15000, no Tds as threshold is not crossed, Next Invoice is 50000, no TDS here too. Suppose now we made another business with venfor and this time we would make payment and invoice shall come later of 15000. This time Tds should be computed. But till now accumulation of 65000 in in tax type CI and 15000 payment is for tax type DC. So tax will not be deducted which is not correct. How to solve this, pls guide.