Free GST Invoice Template Download — Excel, PDF, Word 2026
Looking for a free GST invoice template? You've come to the right place. In this guide, we share ready-to-use GST invoice templates in Excel, PDF, and Word format — all fully compliant with Indian GST rules for 2026.
We also explain what every GST invoice must include (mandatory fields as per CGST Rules), common mistakes to avoid, and how modern businesses are moving from manual templates to automated billing software like Udyog that generates GST invoices in 8 seconds.
What Must a GST Invoice Contain? (Mandatory Fields)
As per Rule 46 of the CGST Rules, every GST invoice must contain these mandatory fields:
- •Supplier's name, address, and GSTIN
- •Invoice number (consecutive, unique per financial year)
- •Invoice date
- •Buyer's name, address, and GSTIN (if registered)
- •Place of supply (state)
- •HSN/SAC code for each item
- •Description of goods or services
- •Quantity and unit of measurement
- •Total taxable value
- •GST rate and amount (CGST + SGST for intra-state, IGST for inter-state)
- •Total invoice value
- •Signature or digital signature of the supplier
Missing even one mandatory field can result in penalties up to ₹25,000 and your buyer cannot claim Input Tax Credit (ITC) on that invoice.
Free GST Invoice Template — Excel Format
The Excel GST invoice template is the most popular format for small businesses. It allows automatic calculation of CGST, SGST, and IGST based on the tax rate you enter. Here's what a good Excel GST template includes:
- •Auto-calculation of CGST (rate/2) and SGST (rate/2)
- •Separate IGST column for inter-state sales
- •HSN/SAC code column
- •Round-off calculation
- •Amount in words (auto-generated)
- •Print-ready A4 format
- •Business logo placeholder
You can download our free GST invoice template in Excel format from the Udyog invoice template page. It works on both Microsoft Excel and Google Sheets.
Free GST Invoice Template — PDF Format
PDF invoice templates are best when you need a fixed, professional-looking document that cannot be edited by the recipient. Most businesses use PDF for emailing invoices to clients.
A PDF GST invoice template should include all mandatory GST fields, your business branding, and space for authorized signature. The limitation of PDF templates is that you need to fill them manually for each invoice — which takes time and is prone to errors.
Free GST Invoice Template — Word Format
Word format templates are easy to customize — you can add your business logo, change fonts and colors, and adjust the layout. However, Word templates don't auto-calculate GST amounts, so you need to do the math manually or use a formula.
Word templates are good for service businesses that bill for a single service each time, where the calculation is simple.
Problems With Manual GST Invoice Templates
- •Manual calculation errors — CGST/SGST wrong amounts lead to penalties
- •Time consuming — each invoice takes 5-10 minutes to fill
- •No automatic invoice numbering — risk of duplicate or missing numbers
- •No record keeping — hard to track who has paid and who hasn't
- •No GST reports — you need to manually compile data for GSTR filing
- •Not mobile-friendly — can't create invoices from your phone on the go
Better Alternative — Automated GST Invoice Software
While templates are a good starting point, most growing businesses quickly outgrow them. Automated GST billing software like Udyog solves all the problems above:
- •8-second invoice creation using voice (say the invoice details out loud)
- •Automatic CGST/SGST/IGST calculation — zero errors
- •Sequential invoice numbering — always GST compliant
- •Automatic payment tracking — know who owes you money
- •One-click GSTR-1 report generation
- •WhatsApp invoice sharing directly from the app
- •Works on mobile, tablet, and desktop
GST Invoice Format — Quick Reference Table
| Field | Required? | Example |
|---|---|---|
| Supplier GSTIN | Mandatory | 27AABCU9603R1ZX |
| Invoice Number | Mandatory | INV-2026-001 |
| Invoice Date | Mandatory | 14-05-2026 |
| Buyer GSTIN | If registered | 29AABCU9603R1ZX |
| HSN Code | Mandatory | 6403 |
| Taxable Value | Mandatory | ₹10,000 |
| CGST Rate | Intra-state | 9% |
| SGST Rate | Intra-state | 9% |
| IGST Rate | Inter-state | 18% |
| Total Invoice Value | Mandatory | ₹11,800 |
Pro Tip
Always use sequential invoice numbers (INV-001, INV-002) and never skip or reuse numbers. The GST department can flag businesses with gaps in invoice sequences during audits.
Stop filling templates manually. Create GST-compliant invoices in 8 seconds with Udyog — free to start, no credit card required.
Create Free Invoice →Frequently asked questions
Quick answers to common questions.
Can I download a free GST invoice template in Excel?
Yes. Udyog provides free GST invoice templates in Excel, PDF, and Word formats from our invoice template page at udyogbook.in/invoice-template. All templates are fully GST-compliant with auto-calculation of CGST, SGST, and IGST.
What is the correct GST invoice format for 2026?
A correct GST invoice must include: supplier GSTIN, invoice number, date, buyer details, HSN/SAC codes, item description, quantity, taxable value, GST rate and amount (CGST+SGST or IGST), and total invoice value. Missing fields can result in penalties up to ₹25,000.
Is there a free GST invoice maker online?
Yes. Udyog is a free online GST invoice maker that lets you create GST-compliant invoices in under 8 seconds. Unlike Excel templates, it auto-calculates all taxes, maintains sequential invoice numbering, and lets you share invoices on WhatsApp instantly.
What is the difference between CGST, SGST, and IGST on an invoice?
CGST and SGST are charged for intra-state sales (buyer and seller in the same state) — each at half the GST rate. IGST is charged for inter-state sales (buyer and seller in different states) — at the full GST rate. For example, 18% GST = 9% CGST + 9% SGST (intra-state) or 18% IGST (inter-state).
Can I use Word or Excel for GST invoicing legally?
Yes, you can use any format for GST invoicing as long as all mandatory fields are present and the invoice is GST-compliant. However, manual templates are error-prone. The GST department does not specify which software you must use — only that the invoice must contain all required fields.