Amendmend in B2CS to B2B
This query is : Resolved
14 June 2025
Q: How to amend GST Return of April 2025 in June 2025; i made changes in tab:10 Amended BtoC(Others), but while adding invoice details in taxable outward supplies made to registered person (record entered successfully but processed with error ( Error! Invoice No. ____________ already exist in another section of GSTR1 for the return period 042025. Kindly enter the correct invoice number.)
Kindly resolve my issue.
Thank You in advance.
Kindly resolve my issue.
Thank You in advance.
12 August 2025
Why this error occurs:
Your invoice number is already reported under B2CS (Table 10) in the April 2025 return.
You cannot simply move or amend it to B2B (Table 6) for the same period by entering the same invoice number again.
GST portal does not allow duplicate invoice numbers in different tables for the same return period.
How to resolve:
Cancel the invoice in B2CS first:
In GSTR-1 Amendment (using the latest GSTR-1 filing tool), go to Table 10 (B2CS Amended).
Select the invoice and mark it as Cancelled or Delete if option is available.
File this amendment.
Add the invoice correctly under B2B:
Once the invoice is removed from B2CS, you can add it afresh in Table 6 (B2B).
Enter the invoice details and file the amendment.
If cancellation/deletion option not available:
You may need to file a negative credit note against the wrongly reported invoice in B2CS.
Then file a fresh invoice under B2B.
Use the Offline Utility:
Sometimes, using the GSTR-1 offline utility for amendments helps avoid such issues.
Prepare your amended return offline, then upload the JSON file.
Your invoice number is already reported under B2CS (Table 10) in the April 2025 return.
You cannot simply move or amend it to B2B (Table 6) for the same period by entering the same invoice number again.
GST portal does not allow duplicate invoice numbers in different tables for the same return period.
How to resolve:
Cancel the invoice in B2CS first:
In GSTR-1 Amendment (using the latest GSTR-1 filing tool), go to Table 10 (B2CS Amended).
Select the invoice and mark it as Cancelled or Delete if option is available.
File this amendment.
Add the invoice correctly under B2B:
Once the invoice is removed from B2CS, you can add it afresh in Table 6 (B2B).
Enter the invoice details and file the amendment.
If cancellation/deletion option not available:
You may need to file a negative credit note against the wrongly reported invoice in B2CS.
Then file a fresh invoice under B2B.
Use the Offline Utility:
Sometimes, using the GSTR-1 offline utility for amendments helps avoid such issues.
Prepare your amended return offline, then upload the JSON file.
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