If you run a shop in India, your customers and your accountant both want a clean GST bill. The good news: you no longer need an expensive billing machine or a computer. With Dukai you can create a GST-compliant invoice right from WhatsApp — the app you already use every day.
What makes a bill a valid GST bill?
A proper GST invoice in India needs a few things: your shop name and GSTIN, an invoice number and date, the item names with HSN/SAC codes, the taxable value, the CGST and SGST (or IGST) split, and the total. Dukai fills all of this in automatically once you set your GSTIN and each product's GST rate.
How to make a GST bill on WhatsApp — step by step
- 1. Set up your shop once. Add your shop name, GSTIN and address in Dukai. This is a one-time step and appears on every bill.
- 2. Add your products with GST rates. Add items by photo or barcode and set each one's GST % (0/5/12/18/28). You can do this from WhatsApp, the app or the web.
- 3. Make the sale. Scan barcodes or pick items at the till. Dukai calculates the taxable value and splits CGST/SGST for you.
- 4. Send the bill on WhatsApp. Tap share and the GST invoice (PDF) goes straight to the customer's WhatsApp — with a UPI QR code so they can pay instantly.
Why use WhatsApp for billing?
- ✅ No machine to buy — use the phone in your pocket.
- ✅ Customers keep the bill — it stays in their WhatsApp chat, not a paper slip they lose.
- ✅ Faster payment — the UPI QR on the bill means they pay before they leave.
- ✅ GST reports ready — every bill rolls up into your GSTR-ready sales report.
- ✅ Works in Gujarati, Hindi & English.
Frequently asked questions
Can I really make a GST bill for free?
Yes. You can start free with Dukai and create GST invoices from WhatsApp or the app without buying any billing hardware.
Does the bill show CGST and SGST separately?
Yes. Once you set each product's GST rate, Dukai automatically splits the tax into CGST and SGST (or IGST for inter-state) and prints HSN codes on the invoice.
Can the customer pay from the WhatsApp bill?
Yes. Every bill can carry a UPI QR code, so the customer scans and pays straight from the invoice you send them.
Do I need a computer?
No. Everything works from your phone — WhatsApp or the Dukai app. A computer is optional.
Start making GST bills today
Set up your shop in minutes and send your first GST invoice on WhatsApp.
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