E-way bill numbers move to 14 digits from 1 January 2027

What changed

By an advisory dated 4 November 2026, GSTN announced new number formats for the e-way bill system from 1 January 2027, because the current number series is close to running out.

GSTN has said the new formats will be made available on the e-way bill sandbox first, with technical details on the e-way bill portal.

Who it affects

Every business that generates e-way bills through an ERP, accounting software or API, and transporters whose apps or gate-entry systems store e-way bill numbers. Businesses that generate e-way bills only on the portal are less affected, but internal registers and spreadsheets may still need changes.

What to do

• Ask your ERP, GST software or GSP provider in writing when the change will be released and tested.
• Make sure fields that store e-way bill numbers accept 14 characters (11 for CEWB) and are stored as text, so that leading zeros are not lost.
• During the changeover, systems should accept both old and new lengths, since e-way bills generated in late December may still be valid in January.
• Check invoice and delivery challan print formats and reconciliation workbooks.

This update reflects the position as on 13 November 2026 and is for general information only. It is not professional advice. Please refer to the official notification or circular, or speak to us, before acting on it.