e-Invoice Reference

e-Invoice master codes for GST API invoice workflows

Use this focused reference when your team is mapping invoice payloads, checking accepted document values, or validating the transport and vehicle fields used in e-Invoice API flows.

Transaction types, document types, and cancellation reasons used in NIC flows
Vehicle formats, transport modes, and linked e-Way Bill values in one place
Readable lookup for ERP, billing, compliance, and implementation teams
e-Invoice reference

e-Invoice API master codes

These are the common master-code values used for e-Invoice API transaction types, document types, cancellation reasons, transport modes, vehicle types, and valid vehicle-number formats.

Type of Transaction

6 entries
CodeDescription
B2BBusiness to Business
SEZWPSEZ with Payment
SEZWOPSEZ without Payment
EXPWPExport with Payment
EXPWOPExport without Payment
DEXPDeemed Export

Document Type

3 entries
CodeDescription
INVInvoice
CRNCredit Note
DBNDebit Note

e-Way Bill Transport Mode Details

4 entries
CodeDescription
1Road
2Rail
3Air
4Ship

e-Way Bill Vehicle Type Details

2 entries
CodeDescription
OODC
RRegular

Cancellation Reason

2 entries
CodeDescription
1Duplicate
2Data Entry Mistake

Valid Vehicle Number Formats

10 entries
CodeDescription
AB121234First 2 characters are state code
AB12A1234First 2 characters are state code
AB12AB1234First 2 characters are state code
ABC1234Standard registration pattern
AB123A1234First 2 characters are state code
AB12ABC1234First 2 characters are state code
DFXXXXXXDefence vehicle
TMXXXXXXXXXXXXXTemporary RC, at least 7 characters
BPXXXXXXXXXXXXXBhutan vehicle, at least 7 characters
NPXXXXXXXXXXXXXNepal vehicle, at least 7 characters
Related page

Open the e-Way Bill master codes page

Switch to supply types, document codes, transaction values, unit codes, and transport references used in e-Way Bill API operations.

Combined hub

View the shared master codes overview

Use the combined hub when you want both e-Invoice and e-Way Bill references on a single page along with the official source links.