GST invoice guides for small businesses
Plain-English GST guides for small businesses: GST invoice format, CGST vs SGST vs IGST, bill of supply, export invoices under LUT, and proforma invoices — with examples.
GST Invoice Format: Mandatory Fields Under Rule 46 (With Checklist)
What must a GST tax invoice contain? A clear checklist of the mandatory fields under Rule 46 of the CGST Rules, invoice numbering rules, copies, time limits — and a free GST invoice generator.
Read guideCGST, SGST and IGST: Which GST to Charge on Your Invoice
Intrastate or interstate? Learn when to charge CGST + SGST, when to charge IGST, where UTGST applies, and see worked examples and the full list of GST state codes.
Read guideBill of Supply vs Tax Invoice: Which One Should You Issue?
A bill of supply is issued instead of a tax invoice when no GST can be charged — by composition dealers and for exempt supplies. See the differences, the required fields and the declaration text.
Read guideExport Invoice Under LUT: Format, Declaration and Currency
How to make an export invoice for goods or services without paying IGST under a Letter of Undertaking (LUT): the mandatory endorsement, extra fields, foreign currency and a free export invoice generator.
Read guideProforma Invoice vs Tax Invoice (and Quotation): What's the Difference?
A proforma invoice is a preliminary bill sent before a sale — it is not a GST tax invoice. Learn how it differs from a tax invoice and a quotation, when to use each, and how to convert one into the other.
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