If you run a freelance business, design studio, or small agency in India, you need a way to generate GST-compliant invoices quickly — without paying ₹500/month for invoicing software you barely use.
We've tested 15+ GST invoice generators available in 2026. Here are the best free options for Indian freelancers and SMBs.
What Is a GST Invoice Generator?
A GST invoice generator is a free online tool that creates a tax-compliant invoice format recognized by Indian GST law. A valid GST invoice must include:
- Supplier's GSTIN, legal name, and address
- Recipient's GSTIN (for B2B)
- Invoice number, date, and place of supply
- HSN/SAC code for each item
- Taxable value, CGST/SGST or IGST split, and total
- Signature or digital signature of the supplier
A good free generator handles all of this without forcing you to sign up or pay for a "pro" plan.
1. FreeGrowTools GST Invoice Generator — Best Overall
FreeGrowTools GST Invoice Generator →
Built specifically for Indian freelancers and small businesses. Handles CGST/SGST (intra-state) and IGST (inter-state) automatically based on state codes, supports multiple line items, GST rates of 5%/12%/18%/28%, and outputs a print-ready PDF.
Why it wins:
- 100% free, no sign-up, no watermark
- Auto-detects IGST vs CGST+SGST based on supplier and buyer states
- Supports all 4 GST slabs (5%, 12%, 18%, 28%)
- Multiple line items with quantity, rate, and discount
- Print-ready PDF download
- Built by Dhanu Decodes — full source, no data uploaded to any server
How to use it:
- Enter your business name and GSTIN
- Enter client name and (optionally) their GSTIN
- Add line items in the format
Name | Qty | Rate - Select the GST rate
- Click Generate Invoice and download the PDF
Best for: Freelancers, agencies, and small businesses that need a one-time invoice without committing to a paid platform.
2. Zoho Invoice (Free Tier)
A full-featured invoicing platform with a free tier for up to 5 customers. Generates GST invoices with automatic tax calculations.
Pros: Polished UI, recurring invoices, expense tracking Cons: Requires sign-up, free tier limited to 5 customers
3. Refrens GST Invoice Generator
An Indian-built invoicing tool with a generous free tier. Supports GST, e-invoicing for turnover above ₹5 Cr, and payment links.
Pros: e-Invoicing support, payment integration Cons: Requires sign-up, free tier has limits
4. ClearTax Invoice Generator
A free downloadable Excel/Google Sheets template for GST invoices. Good for users who want offline editing.
Pros: Works offline, free forever Cons: Manual tax calculation, no PDF auto-generation
5. Vyapar App (Freemium)
A desktop + mobile invoicing app popular with Indian SMBs. Generates GST invoices, e-Way bills, and tracks inventory.
Pros: Full SMB accounting suite Cons: Desktop app, free tier limited, sign-up required
6. myBillBook (Freemium)
A mobile-first invoicing app from Khatabook. Free for up to 100 invoices per year.
Pros: Mobile-first, simple UI Cons: Sign-up required, free tier has invoice limits
7. Invoicera (Free Tier)
A web-based invoicing tool with GST support. Free tier allows unlimited invoices but limits the number of clients.
Pros: Unlimited invoices on free tier Cons: Requires sign-up, dated UI
8. OkInvoice (Free Tier)
Another web-based invoicing platform with GST support and a free tier for solo freelancers.
Pros: Free for solo users Cons: Sign-up required, fewer features than paid competitors
9. BooksTime GST Templates
A collection of free downloadable GST invoice templates in Excel and Word format. Good for users who want full control over the format.
Pros: Offline editing, customizable Cons: Manual tax calculation, no PDF auto-generation
10. Tally Solutions Free Invoice Maker
Tally's free web tool for generating single GST invoices. Trusted name in Indian accounting.
Pros: Trusted brand, accurate tax handling Cons: Requires sign-up, has TallyPrime upsell
Quick Comparison Table
| Tool | Sign-up? | Bulk Invoices? | e-Invoicing? | Price |
|---|---|---|---|---|
| FreeGrowTools | No | One at a time | No | Free |
| Zoho Invoice | Yes | Yes | No | Free tier |
| Refrens | Yes | Yes | Yes | Free tier |
| ClearTax | No | Templates | No | Free |
| Vyapar | Yes | Yes | Yes | Free tier |
| myBillBook | Yes | Yes | No | Free tier |
| Invoicera | Yes | Yes | No | Free tier |
| OkInvoice | Yes | Yes | No | Free tier |
| BooksTime | No | Templates | No | Free |
| Tally | Yes | Yes | Yes | Free tier |
Understanding GST Slabs and Tax Splits
India has 4 main GST slabs:
- 5% — essential goods, basic services
- 12% — processed food, business class air travel
- 18% — most services, IT, telecom (most common for freelancers)
- 28% — luxury goods, high-end vehicles
For each invoice, the tax splits into:
- CGST + SGST for intra-state transactions (e.g., Maharashtra → Maharashtra)
- IGST for inter-state transactions (e.g., Maharashtra → Karnataka)
If you're a freelancer in Maharashtra billing a client in Karnataka, you charge 18% IGST. If your client is also in Maharashtra, you charge 9% CGST + 9% SGST.
The FreeGrowTools GST Invoice Generator handles this automatically based on the state codes in both GSTINs.
Common Mistakes When Generating GST Invoices
- Wrong HSN/SAC code — every line item needs a valid 4 or 6-digit HSN code (goods) or SAC code (services). Most service-based freelancers use SAC
998314(advertising) or998316(IT services). - Missing place of supply — required for IGST vs CGST+SGST determination.
- No invoice serial number — invoices must be sequentially numbered for the financial year (e.g.,
FGT/2026-27/001). - No reverse charge clause — if the transaction is under reverse charge, the invoice must explicitly say so.
- Wrong GSTIN format — GSTIN is always 15 characters: 2 (state) + 10 (PAN) + 1 (entity) + 1 (Z) + 1 (checksum).
Frequently Asked Questions
Is a GST invoice mandatory for all transactions?
No. GST invoices are mandatory for B2B transactions and B2C transactions where turnover exceeds ₹50 lakh in a financial year. Below that threshold, a "bill of supply" is sufficient.
What's the difference between a tax invoice and a bill of supply?
A tax invoice is used for taxable supplies (with GST). A bill of supply is used for exempt or non-taxable supplies (no GST collected). Both contain the same supplier info but only tax invoices show tax breakup.
Can I generate a GST invoice without GSTIN?
Yes, if you're a composition scheme dealer or your turnover is below the GST threshold. You can issue a "bill of supply" instead.
Do I need to include HSN codes for services?
Yes, but for services, you use SAC codes (Services Accounting Code) instead. Common SAC codes for freelancers:
998314— Advertising services998316— IT and software services998365— Educational services998397— Other professional services
Try It Now
Open the Free GST Invoice Generator, enter your business and client details, and download a print-ready PDF in under a minute. No sign-up, no watermark, no limits.
Related tools for Indian freelancers:
- WhatsApp Business Link Generator — create pre-filled WhatsApp links for clients
- UPI QR Code Generator — generate UPI payment QR codes
- Email Signature Generator — create professional email signatures
- Invoice Generator (non-GST) — for non-GST businesses and international clients
Built by Dhanu Decodes. Bookmark this page — we add new business tools regularly.