Matching of credit notes triggers adjustment of output tax liability and possible interest refund upon rectification.

The section mandates matching supplier credit note details with recipient reductions in input tax credit to verify corresponding reductions and prevent duplication. Matched claims are accepted and communicated; discrepancies where supplier reductions exceed recipient declarations are notified to both parties and, if not rectified by the recipient within the prescribed return period, the unmatched amounts are added back to the supplier's output tax liability. Duplication is similarly rectified by adding amounts back. Added amounts attract interest from the date of the original claim, and accepted subsequent declarations permit refund of interest into the supplier's electronic cash ledger, subject to prescribed caps.

---

---

---