Tools Financial Calculators GST Invoice Generator
Financial Calculators

GST Invoice Generator

Create a GST-compliant invoice in seconds — automatic CGST/SGST or IGST split, totals and a clean printable bill.

GST invoicing tips

  • A valid tax invoice must carry your GSTIN, a consecutive invoice number, the invoice date, the recipient's details, a description of goods/services, the taxable value and the GST rate and amount.
  • Charge CGST + SGST when the supplier and the place of supply are in the same state; charge IGST when they are in different states (or for exports/SEZ).
  • Invoice numbers must be unique and consecutive within a financial year — don't repeat or skip them.
  • This generator is for quick single-item invoices. For multi-line GST returns and e-invoicing (IRN/QR), use your accounting software.

How GST is split on an invoice

Under India's Goods and Services Tax, the tax you charge depends on where the supply happens. For an intra-state supply (you and your customer's place of supply are in the same state), the total GST is split equally into Central GST (CGST) and State GST (SGST) — so 18% GST becomes 9% CGST + 9% SGST. For an inter-state supply, a single Integrated GST (IGST) is charged at the full rate.

The math is simple: tax = amount × rate ÷ 100, and the grand total = amount + tax. This tool computes the split automatically and lays it out in a clean invoice you can print or save as PDF (use your browser's "Print → Save as PDF").

Frequently asked questions

Is this a legally valid GST invoice?
It produces a tax-invoice layout with the mandatory fields (GSTIN, invoice number and date, parties, description, taxable value and GST). It's suitable for small businesses and freelancers. For e-invoicing requirements (IRN and signed QR code, mandatory above the notified turnover threshold), generate the invoice through the GST e-invoice portal or compliant software.
When do I charge IGST instead of CGST + SGST?
Charge IGST when the place of supply is in a different state from your registered location, and for exports and supplies to/from SEZ units. If the place of supply is in your own state, charge CGST + SGST instead. Pick the matching "Supply type" above and the split is handled for you.
Can I save the invoice as a PDF?
Yes. Generate the invoice, click "Print / Save as PDF", and in the print dialog choose "Save as PDF" as the destination. Everything except the invoice itself is hidden in print, so you get a clean document.

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