Matching of input tax credit triggers acceptance, reversal, or addition to output tax liability with interest consequences.

The provision creates a matching mechanism where inward supply details submitted by a recipient are compared with supplier outward supplies, import tax paid, and duplication claims. Accepted matches result in final acceptance of input tax credit; discrepancies and duplications are communicated. Unresolved discrepancies or duplicative credits are added to the recipient's output tax liability; interest is payable from the date of availing the credit. If the supplier subsequently corrects returns within the prescribed period, the recipient may reduce liability and obtain an interest refund by electronic credit, limited to the interest paid by the supplier.

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