What is a GST Tax Invoice in India?
Under the Indian Goods and Services Tax (GST) law, registered businesses and service providers are required to issue a Tax Invoice whenever they supply taxable goods or services. A valid GST tax invoice serves as legal evidence of the transaction and enables the buyer to claim Input Tax Credit (ITC).
Intra-State vs Inter-State GST Calculation
Understanding which GST tax components apply to your bill:
CGST + SGST
When the seller's state and client's place of supply are in the same state (e.g. Karnataka to Karnataka). The GST rate is split equally:
IGST (Integrated GST)
When the seller and client are in different states (e.g. Maharashtra to Karnataka) or export of services:
Mandatory Fields on an Indian GST Invoice (Rule 46)
- Supplier Name, Address & GSTIN (15 alphanumeric characters)
- Consecutive Invoice Serial Number
- Date of Invoice Issue
- Recipient Name, Address & GSTIN (if registered)
- HSN Code (for goods) or SAC Code (for services)
- Description of Goods or Services
- Quantity, Unit & Rate per item
- Total Taxable Value
- Applicable GST Rates & Tax Amounts
- Place of Supply (State & 2-digit State Code)
- Reverse Charge Mechanism (RCM) applicability
- Authorized Digital Signature
Dynamic UPI QR Code for Instant Settlements
invoicepdfgenerator allows Indian businesses and freelancers to enter their **UPI ID** (e.g. yourname@okhdfcbank). The generator dynamically constructs an embedded UPI QR code based on the National Payments Corporation of India (NPCI) standard:
Clients can scan the QR code with any UPI app (Google Pay, PhonePe, Paytm, BHIM, Cred) to settle payments instantly.
Indian Numbering System: Amount in Words
invoicepdfgenerator automatically converts your grand total into the Indian numbering system using Lakhs and Crores (e.g. "Rupees Twelve Lakh Thirty-Four Thousand Five Hundred Sixty-Seven and Fifty Paise Only") avoiding Western million/billion confusion on Indian commercial invoices.