Supplier credit notes and IGST cross-utilisation: automatic ITC reversal was not required, and revenue-neutral procedural correction did not sustain recovery.
For 2017-18, supplier credit notes did not themselves require recipients to reverse input tax credit: the statutory framework then governed reduction of the supplier's output liability, the matching mechanism was not operational, and Rule 37 applied only to non-payment of suppliers within 180 days. Past-period GSTR-3B errors could be corrected on a net basis. Excess IGST should ordinarily be refunded or adjusted against future IGST liability; a refund paid through the electronic credit ledger would be recredited as IGST input tax credit, then cross-utilisable against CGST and SGST. Direct cross-head adjustment bypassed that route but was a bona fide, revenue-neutral procedural lapse that did not support tax, interest, or penalty recovery.
Issues: (i) Whether, during 2017-18, receipt of supplier credit notes by itself required the recipient to reverse input tax credit; and (ii) Whether excess IGST paid while correcting the credit-note treatment could be adjusted against CGST and SGST liabilities in the December 2017 GSTR-3B.
Issue (i): Whether, during 2017-18, receipt of supplier credit notes by itself required the recipient to reverse input tax credit.
Analysis: Section 34 of the Central Goods and Services Tax Act, 2017 then regulated reduction of the supplier's output tax liability and did not impose a corresponding mandatory reversal of input tax credit on the recipient. The matching mechanism under Section 43 was never operationalised, while Rule 37 of the Central Goods and Services Tax Rules, 2017 applied only where the recipient failed to pay the supplier within 180 days. The later amendment expressly linking the supplier's credit note to reversal by the recipient could not govern the period in dispute.
Conclusion: During 2017-18, a supplier's credit note did not, by itself, create a statutory obligation for the recipient to reverse input tax credit, in favour of the assessee.
Issue (ii): Whether excess IGST paid while correcting the credit-note treatment could be adjusted against CGST and SGST liabilities in the December 2017 GSTR-3B.
Analysis: Circular No. 26/26/2017-GST permitted correction of past-period errors on a net basis in the GSTR-3B for the period in which the error was noticed. Although an excess IGST amount could ordinarily be adjusted against future IGST liability or claimed as refund under Section 54, a refund of tax discharged through the electronic credit ledger would, under Rule 92(1A), be recredited as IGST input tax credit. Such recredited IGST credit was capable of prescribed cross-utilisation for CGST and SGST under Section 49. The direct cross-head adjustment bypassed that procedure, but was a bona fide procedural lapse during the initial GST period and caused no revenue loss.
Conclusion: The direct adjustment was procedurally irregular but, being bona fide and revenue-neutral, did not sustain recovery of tax, interest or penalty, in favour of the assessee.
Final Conclusion: The confirmed fiscal liability arising from the credit-note correction and wrong-head adjustment cannot be sustained.