Matching of credit notes: supplier reductions accepted only if matched by recipient input tax declarations; discrepancies add to liability.

Matching of credit notes requires a supplier's reduction in output tax to be verified against the recipient's corresponding reduction in input tax credit; matched reductions are accepted and communicated. Discrepancies where the supplier's reduction exceeds the recipient's declared reduction, or where the recipient fails to declare the credit note, are communicated and the unrectified amounts are added to the supplier's output tax liability. Duplication of claims is communicated and duplicated amounts are added back. Interest is payable on amounts so added until they are rectified; subsequent valid recipient declaration permits reduction of added amounts and refund of interest to the supplier, subject to limits.

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