Quick facts
- Check: legal name, trade name and every character of the GSTIN.
- Display: GSTIN on the name board at every place of business (Rule 18).
- File: GSTR-1 and GSTR-3B on time.
Your GST registration certificate has come through. Here's what to sort out next so your invoicing, filings, and compliance stay on track from day one.
1. Verify Your Certificate Details
Check your GST registration certificate (Form GST REG-06) for your legal name, trade name, GSTIN, registered address, and effective date of registration — these will appear on every invoice you raise. Check every character of the GSTIN: see GSTIN Format Explained.
2. Display Your GSTIN on the Name Board
Rule 18 of the CGST Rules, 2017 requires every registered person to display their GSTIN on a name board at the entry of their principal place of business, and at every additional place of business. Proprietorship and Partnership firms can order the GST Signboard; PVT. LTD., LLP and OPC can order the 3-In-1 Compliance Signboard. More detail: GST Signboard for Proprietorship & Partnership Firms.
3. Get Your GST/Business Stamp Made
Most businesses use their existing Company or firm stamp for GST paperwork — if you don't have one yet, see our Rubber Stamp sets.
4. Set Up GST-Compliant Invoicing
Every invoice must show your GSTIN, invoice number and date, place of supply, HSN/SAC codes, and the applicable tax breakup (CGST/SGST/IGST). Update your invoicing format or software before your first sale.
5. Register for E-Invoicing (If Applicable)
If your turnover crosses the government-notified e-invoicing threshold, you'll need to generate invoices through the Invoice Registration Portal (IRP) and obtain an IRN for each one.
6. Know Your Filing Deadlines
Most regular taxpayers file GSTR-1 (outward supplies) and GSTR-3B (summary return with tax payment) monthly or quarterly, depending on your scheme and turnover.
7. Set Up Input Tax Credit Tracking
Track eligible input tax credit on purchases from day one, and reconcile it against GSTR-2B regularly to avoid mismatches at filing time.
8. Update Your GSTIN Across Business Documents
Add your GSTIN to your letterhead, invoices, purchase orders, and e-commerce listings so every document reflects your registered status.
Frequently asked questions
Is displaying the GSTIN on a name board mandatory?
Yes. Rule 18 of the CGST Rules, 2017 makes this a mandatory requirement at every place of business, not just an optional courtesy.
Can I start invoicing immediately after registration?
Yes — once your GSTIN is active, you can start raising GST-compliant invoices immediately, using the effective date shown on your certificate.
Is a separate "GST stamp" legally required?
No. There's no distinct legal category for a GST stamp — most businesses simply use their existing Company or firm stamp on GST-related paperwork.
Related: GST Signboard for Proprietorship & Partnership Firms, compliance signboards, Rubber Stamp sets and Which Signboard Do You Need?
Registered as a PVT. LTD., LLP or OPC?
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