E-way bill numbers to move from 12 to 14 digits, consolidated e-way bill numbers to 11 digits from 1 January 2027

GSTN advisory of 4 November 2026: e-way bill numbers will move from 12 to 14 digits and consolidated e-way bill numbers from 10 to 11 digits from 1 January 2027.

The Goods and Services Tax Network (GSTN) has issued an advisory dated 4 November 2026 on the GST portal, titled "Revision in E-Way Bill and Consolidated E-Way Bill Numbering Formats w.e.f. 1 January 2027". GSTN states that, because of the high volume of e-way bills being generated, the existing numbering capacity is expected to be exhausted.

What changes

With effect from 1 January 2027, GSTN proposes:

E-Way Bill Number: from 12 digits to 14 digits.
Consolidated E-Way Bill Number: from 10 digits to 11 digits.

Who is affected

Taxpayers who generate or record e-way bills, GST Suvidha Providers (GSPs), ERP and software providers, and API integrators.

What businesses should do now

Update applications, APIs, database schemas and validation rules so that they accept the new number lengths.
Test the changes in the Sandbox environment, where GSTN says they will be released shortly.
Watch the E-Way Bill Portal for further details.
Ensure systems are ready well before 1 January 2027.

The advisory does not address the treatment of e-way bills generated before that date.

This update is for general information only and is not professional advice. Speak to us about how it applies to your business.