GSTR3B mistake at the year end

Yes it will be surely come as a difference while reconciling or while entering in GSTR-9 as your books will be having that transaction but your GST returns wont. But show the missed invoices in your GSTR-1. Then the mismatch will only on payment of tax.

U will have to pay interest for left out item of  supply of march 20 which which u add in April 20.But is it that due date extended gor msrch 20 no interest payable?

Sir, I have 2 questions-

1. I believe the interest is waived for the payment delays in the month of Mar & Apr 2020 because of pandemic. Please correct me if I have some misunderstanding.

2. I haven't filed GSTR1 for this quarter. Shall I show the missed invoice in this quarter GSTR1 itself or in the Apr month. 

Thanks

Previous message- Hi, I have missed some amount while filing GSTR 3B for the month of Mar 2020. I know that the same can be added in next moth GTSR 3B , but will it have any impact on reconcillation for the annual return of 2019-20 fiscal year ?

 

Sir, I am still worried about how the mismatch between the GSRT1 filed and return paid will be reconciled during annual return filing. How the system will understand that the balance liabilities have been paid in the next financial year ?

Is there any field in GSTR3B to identify the missed amount from previous quarter or fiscal year ?

Scenario explanation- I had filed the GSTR3B of Mar month in May and missed some invoice while fining GSTR3B. I have filed GSTR1 with correct amount and complete invoice details. 

Thanks