11 October 2017
While making payment of GST output liability for Jul-17 there was an error. By mistake SGST was selected instead of IGST and the the challan was processed.
So is any rectification possible while filing the GSTR-1
31 October 2026
Under current rules, if the amount is still in the cash ledger, shift it to the IGST head by FORM PMT-09; if already set off as SGST, pay the IGST and claim refund of the SGST u/s 77 within 2 years of paying the correct tax (Rule 89(1A)), with no interest on the IGST so paid.