How to amend B2C Invoice to B2B in GSTR1

How to Amend B2C Invoice to B2B in GSTR1 :

As we are aware that September 2018 is last month to avail GST credit for F.Y 2017-18A common query from taxpayers is what happens if a B2B Invoice is recorded as B2C. This can happen because of any of the following reasons:

1.) Purchaser has not submitted GSTIN .

2.) Purchaser has submitted GSTIN, but it is not recorded in Accounting System

3.) Purchaser has applied for GST Registration, but has still not received GSTIN.

Let’s Assume in the Month of March 2018 B2B invoice has shown to B2C. Total Invoice value was  1180, Taxable Amount was Rs. 1000 and GST 180. Later on we came to know that invoice shown in March 2018 was Actually B2B invoice but by any reason it has been shown to B2C. Therefore we need to amend that B2C invoice to B2B in coming month GSTR1. We can amend that in Oct Month GSTR-1 as well but it is advisable to Amend in Sep 2018 Return so that your customer can also take credit of the invoice otherwise in Oct’2018 return your customer will  not be able to take credit as it pertains to F.Y 2017-18.

How to Amend B2C to B2B has been explained below in step by Step process:

1. Login to GST Portal with your user name and password.

2. Go to Return Dashboard and then select GSTR1 for the month we are filing.

3. Under GSTR-1 you will see a option under Table 10 amended B2C(Others). Click on that Option.

4. Select Financial Year, Month and State for which Amendment is Required then click on Amend Details.

5. Once you click on Amend details below option will come. Here you have to reduce the amount of the invoice and taxable value which needs to be shown as B2B. Now We need to reduce 1000 from the Taxable value and 180 from the Tax part.

6. Invoice and Taxable Amount Reduced from Table 10 needs to be added under Table 4 Along with Invoice Amount, Invoice date and GSTN details.

Here we need to add mention GSTN, Invoice Number, Invoice Date Total Invoice value i.e 1180 and Taxable Value 1000 and 180 under the Tax part. After Adding all the details of the B2B invoice click on Save.  By this way B2C invoices can be amended to B2B invoice. Your total sale value will same by doing this.

You may also refer : How to Amend B2B invoices in GSTR 1

This Article has been Written by CA Deepak Gupta. He Can be reached at

Disclaimer: The contents of this article are solely for informational purpose. It does not constitute professional advice or recommendation of firm. Neither the authors nor firm and its affiliates accepts any liabilities for any loss or damage of any kind arising out of any information in this document nor for any actions taken in reliance thereon. Readers are advised to consult the professional for understanding applicability of this newsletter in the respective scenarios. While due care has been taken in preparing this document, the existence of mistakes and omissions herein is not ruled out. No part of this document should be distributed or copied (except for personal, non-commercial use) without our written permission.



Your email address will not be published. Required fields are marked *

  1. It doesn’t allow to amend more than once means if we receive the details from clients in different different month and trying to make the amendment in B2CS section say for few clients in Nov’18 & Dec’18. So we have observed that it is not allowing to make the amendment on multiple occasion. Plz help if you have any solution to that.

    1. Yes we are also facing the same issue…so we are only adding the details from B2CS to B2B and no changes in B2CSA. If you have any other solution, plz help.

  2. I already amended gst return 1, but a notice served to me for difference in 3B and gstr1. they did not see the amended details.

  3. Hi deepak,
    what if there is no sale transaction in subsequent months to amend ( add or reduce with B2B and B2c ).

  4. Sir, I have filed GSTR-1 with values in B2C instead of B2B in all the months of 2017-18 and also filed GSTR-1 & 3B returns upto September 2018 and February 2019 respectively. How can I rectify the issue?. Please guide me.

  5. how to change b2c(others) to b2b for the month of july 2017. and if possible when is the last date to do so.
    please help.

  6. Dear Sir,
    Can the customer get credit, if the above amendment process will be done after 6 months? Please revert.

  7. Dear Iliyas
    The amendment in the invoice would be considered as retrospective basis and thus you can take credit

  8. gstr-1 of the month September 2018 b2b invoices wrongly filed in b2c column can we amend in the present month (may 2019)in gstr-1 column ???

  9. Dear Sir,
    we have submitted B2C on August 2018 gstr1, we found now one invoice was wrongly submitted here. I want to correct the invoice from B2C to B2B. whether it is possible or not now.
    If possible Please guide to us , which month i make correction september 2018 or June 2019.

  10. hello sir i have b2b invoice in the preiod of 2017-18 .but i have book out in the b2c others. so what will be soliution sir

  11. Hi,For the year 2018-19,we have left to enter b2c invoices in GSTR1 but in GSTR3B filed(both B2b & B2C) .Is there any option to add B2C invoices in March 2018 because we have not submitted yet..pls reply

  12. gstr-1 of the month Febuary 2019 b2b invoices wrongly filed in b2c column can we amend in the present month (Sep 2019)in gstr-1 column ???.