The sales return to Interstate is more than sales amount to that particular state.
Interstate sales return is more than sales
Record the credit note in GSTR-1 using the credit note or B2C section (permitting negative entry where allowed). GSTR-3B will not accept negative outward-supply figures; therefore reduce current-period tax liability to the extent possible and, if the portal prevents negative entries, carry the adjustment into subsequent GSTR-3B periods, ensuring taxable value and tax are adjusted consistently. (AI Summary)
TaxTMI