GSTR-1 is a sales return that is required to be filed by every GST-registered person or entity. Sandbox API for getting large business-to-consumer(B2CL) invoice(more than 2.5 lakhs) details with amendments for a return period of the authenticated taxpayer.

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  • Get all B2C Large invoices with amendments for a return period for the authenticated taxpayer(gstin) for the particular year and month.
  • You also need to provide the state_code.


HTTP MethodResource

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Follow the below guidelines to pass GSTIN, year & month for getting large business-to-consumer(B2CL) invoice(more than 2.5 lakhs) details with amendments.

Path Parameters

gstinstring15-character alpha-numeric unique identifier assigned to business entities registering under the GST regime22AAAAA0000A1Z5
yearstringYear for which Advance Tax needs to be fetched.2020
monthstringMonth for which Advance Tax needs to be fetched.01

Query Parameters

state_codestringState Code24

Once the values are added, Your curl will look something like this

curl --request GET \
     --url '' \
     --header 'Authorization: xxxxxxxxxx' \
     --header 'accept: application/json' \
     --header 'x-api-key: xxxxxxxxxx' \
     --header 'x-api-version: 1.0'


Test Environment Not Available


The response includes the following Large B2B invoices details with amendments below

  • B2B Invoices
posstringPlace of Supply04
List{inv}Invoice DetailsRefer to the Table below
  • Invoice Details
flagstringInvoice StatusN - No Action
updbystringUploaded byR - Receiver
S - Supplier
chksumstringInvoice Check sum valueAflJufPlFStqKBZ
oinumstringOriginal Supplier Invoice NumberS008400
oidtstringSupplier Invoice Date
inumstringSupplier Invoice NumberS008400
idtstringSupplier Invoice Date03-02-2016
valnumSupplier Invoice Value10000.00
inv_typstringInvoice type"R- Regular B2B Invoices, DE – Deemed Exports, SEWP – SEZ Exports with payment,
SEWOP – SEZ exports without payment
CBW - Custom Bonded Warehouse"
diff_percentnumDifferential percentage.65 (65%)
list {itms}ItemRefer to the table below
  • Items
numnumSerial no2
itm_detItem DetailsRefer to the table below
  • Item Details
rtnumRate of Invoice5
txvalnumTaxable value of Goods or Service as per invoice10000.00
iamtnumIGST Amount as per invoice650.00
csamtnumCess Amount as per invoice650.00

Response Caching

Response caching is not available for this API. Learn more about our response caching mechanism here

Wallet Charges

Since GSTR-1 B2CLA is a Paid API, a wallet charge of INR 0.25 + GST per API call will be applicable.


This API is currently in major version 1.0. Refer to our versioning policies here