Article · ~15 min read

GST Invoice: Format, Rules, Types and Mandatory Details

ClearTax · cleartax.in Free Beginner India

A plain guide to what a GST invoice must contain (invoice number and date, both GSTINs, place of supply, HSN or SAC code, taxable value and the CGST, SGST or IGST split, reverse charge), plus the time limits for issuing one.

  • Every GST invoice needs both GSTINs, the place of supply and HSN or SAC codes.
  • Keep the invoice serial number strictly in sequence.
  • A buyer can claim input tax credit only on a valid GST invoice.
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The question it answers

  1. How do I make an invoice for free, including a GST invoice?

Read with it

  1. Zoho's invoicing app, which its own pricing page lists at ₹0 for Indian businesses, forever. It makes GST-compliant invoices,... zoho.com Tool · Pricing page Zoho Invoice pricing: free for Indian businesses Zoho
  2. Microsoft's own gallery of free invoice templates (sales, service, freelance and simple business invoices) that calculate... microsoft.com Template · Template gallery Free invoice templates in Excel Microsoft
  3. The government's Invoice Registration Portal, where businesses above the e-invoicing threshold report B2B invoices and get an... gst.gov.in Tool · Government portal e-Invoice System (Invoice Registration Portal) GSTN / NIC
  4. Explains who must e-invoice: businesses with annual turnover above ₹5 crore since 1 August 2023, and the rule from 1 April 2025... cleartax.in Article · ~12 min read What is e-Invoicing Under GST? Applicability, Limit, Rules ClearTax
  5. MyBillBook's own pricing page. It is GST billing and stock software for small shops and traders, phone first with a desktop app... mybillbook.in Tool · Pricing page myBillBook pricing plans myBillBook (FloBiz)
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