If you've missed entering credit notes into your GSTR1 for Q3 and Q4 of FY 2019-20, you can still rectify this. The advice is to include these missed credit notes in your September 2020 GSTR1 filing. It's also important to reflect the corresponding effect in your September 2020 GSTR3B. This is applicable even if the credit note amounts were already deducted in the GSTR3B of the respective months during FY 2019-20.
10 October 2020
Dear experts, I missed some credit notes to enter into GSTR1 of Q3 and Q4 of FY 2019-20 can i show those Credit Notes in this Financial Year 2020-21? Kindly answer of my query.