GST registrations and numbering
Add a GSTIN for each state, set each Brand’s default, keep your LUT, and use GST-valid number series.
MMeridian VenturesBrightline Design
DashboardDocumentsCustomersItemsReportsSettings
Settings
GST India
Registrations · one per state, one PAN
StateGSTINDefault forNext number 2
Maharashtra (27)27AAKCM1234F1Z5Main · Brightline DesignBD27/26-27-0042
Karnataka (29)29AAKCM1234F1Z1Clearpath ConsultingCC29/26-27-0009
Letter of Undertaking (LUT) 3ARN AD270326012345X · FY 2026-27Active
Composition schemeOff · invoices are tax invoices
- Add Registration — a GSTIN for another state, with its trade name and address.
- Next number — each registration has its own GST-valid series.
- LUT — your Letter of Undertaking’s ARN for this financial year, for exports and SEZ without IGST.
Several registrations
Turn on More than one GST registration in Settings›Features›GST. Then:
- One active registration per state, all with your main registration’s PAN (one organization is one PAN).
- Each Brand has a default registration; an invoice can choose another.
- Hectile checks each GSTIN’s format, state code and check character. Whether it’s active on the portal is for you to confirm.
- A registration with issued documents keeps its GSTIN — archive it and add the new one. Registrations are archived, never deleted.
GST-valid numbers
GST invoice numbers must be 16 characters or fewer, using letters, digits, - and /, unique in a financial year. An invoice under another registration takes that registration’s series, like:
| Document | Example |
|---|---|
| Tax invoice | BD27/26-27-0042 |
| Bill of supply | BDB27/26-27-0003 |
| Credit note · Debit note | BDC27/… · BDD27/… |
| Delivery challan | BDH27/26-27-0006 |
Settings → GST lists every GST series with its next number and a check; Fix proposes a GST-valid format with the financial year.
Who can do this:OwnerAdminMember — noViewer — no
Related topics
Keep going
Invoices and documentsDocument numberingHow each Brand numbers invoices, estimates, notes and receipts — and how to continue from your old system.View Guide GST (India)Turn on GST invoicingSwitch on GST invoicing for your organization in India, add your registration and issue your first checked tax invoice.View Guide GST (India)Exports, SEZ and bills of supplyChoose the right supply type for exports and SEZ supplies, use your LUT, and issue bills of supply for exempt, nil-rated and composition supplies.View Guide
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