Why You Need GST-Compliant Invoices
Under the GST regime, every registered business must issue tax invoices for the supply of goods or services. A GST-compliant invoice is not just a billing document — it's a legal requirement under Rule 46 of the CGST Rules, 2017.
Non-compliant invoices can lead to:
- Rejection of ITC claims by the buyer
- Penalties during GST audit
- Difficulties during return filing
Mandatory Fields in a GST Invoice
Every tax invoice must contain the following details:
- Supplier's name, address, and GSTIN
- A consecutive serial number (max 16 characters)
- Date of issue
- Recipient's name and address (GSTIN if registered)
- HSN code (for goods) or SAC code (for services)
- Description of goods/services
- Quantity and unit of measurement
- Total value of supply
- Taxable value (after discounts)
- GST rate and amount — split into CGST, SGST, or IGST
- Place of supply with state code
- Reverse charge applicability
- Signature (physical or digital)
CGST+SGST vs IGST — Which Applies?
The type of GST depends on the place of supply:
| Supply Type | Condition | Tax Applied | |------------|-----------|-------------| | Intra-State | Seller & buyer in same state | CGST + SGST | | Inter-State | Seller & buyer in different states | IGST |
Our invoice generator automatically detects the supply type based on the states you select and applies the correct tax split.
How to Create an Invoice on SmartGST
- Open the Invoice Generator
- Enter your business details (name, GSTIN, state)
- Enter buyer details (name, GSTIN, state)
- Add line items with description, HSN code, quantity, rate, and GST %
- Review the auto-calculated tax breakdown
- Download as PDF or Excel, or share via WhatsApp
It's that simple — no signup required for up to 5 invoices per month!
Invoice Templates
SmartGST offers three professional invoice templates:
- Modern — Clean, teal-accented design perfect for startups
- Classic — Traditional blue layout for established businesses
- Minimal — Simple grayscale for a professional look
All templates are GST-compliant and include all mandatory fields.
Free vs Paid Plans
| Feature | Free | Starter (₹99/mo) | Pro (₹199/mo) | |---------|------|-------------------|----------------| | Invoices/month | 5 | Unlimited | Unlimited | | Saved clients | ❌ | Up to 10 | Unlimited | | Invoice history | ❌ | 3 months | Full | | SmartGST branding | Yes | Removed | Removed | | Business profiles | 1 | 1 | Multiple |
Conclusion
A GST-compliant invoice is essential for every business. SmartGST makes it easy to create professional invoices with automatic tax calculations. Try our free invoice generator today!
Disclaimer: This article is for informational purposes only. Always verify your invoices comply with the latest GST regulations.
