12-21-2011, 08:16 PM
Normally discrepancy arises because of not reconciliation of input or output u claim from your vendor or client .Suppose you received a purchase invoice after submitting your sales tax return .You claim the input of this invoice in next month and your customer claim the out put in the relevant month it will create a discrepancy.Sometime it also happen that your vendor not submitting their returns ,in such circumstances department issue a notice to you not your supplier.