Step-by-Step Guide

From GST Number to Sent Invoice in 60 Seconds

Share a client name or GSTIN on WhatsApp. InvoiceBhai fetches the details, builds the invoice, generates a PDF, and forwards it to your client, all in one chat.

Step-by-Step Walkthrough

Step 1

Name Your Client or Share Their GST

Just type the client name or paste their GSTIN. InvoiceBhai instantly looks up their details (name, address, state) so you never have to type it manually.

Hey, make an invoice for Stratonix systems, 09AFUFS9884D1ZY

Nice — I've updated the client details from the GST records. InvoiceBhai Technologies Pvt Ltd shop no - 1, Tandan Building, Shivaji Marg, Hewett Road, Lucknow, Uttar Pradesh, 226018 Now I just need their phone number, and then we can move to the tax rate and items.

Step 2

Add Phone Number

Share the client's WhatsApp number so InvoiceBhai can forward the invoice directly to them once it's ready.

9876543210

Got it — phone number is in. Now send me the tax rate you want on this invoice, and the items with quantity and price. If there's more than one item, you can list them one by one or all together.

Step 3

Send Your Items & Tax Rate

List all your items with quantity and price in one go. You can type it however feels natural. InvoiceBhai figures it all out.

1pc chandelier 50k 1pc Bed 75k 1pc TV 65inch 80k 18% tax rate

Here's your invoice preview: Invoice No: INV/ELE/26-004 Party: InvoiceBhai Technologies Pvt Ltd Items: chandelier | 9405 | 1 | Pc | 50,000 | 50,000 Bed | 9403 | 1 | Pc | 75,000 | 75,000 TV 65inch | 8528 | 1 | Pc | 80,000 | 80,000 Subtotal: ₹2,05,000 GST @18%: ₹36,900 Grand Total: ₹2,41,900 Please review all details carefully. If everything looks correct, simply reply "Yes".Preview

Step 4

Confirm & Get Your PDF

Review the preview: items, HSN codes, totals, and GST breakdown, then say the word. Your PDF is generated instantly.

Looks good to me!

Here's your invoice. Invoice No: INV/ELE/26-004 Party: InvoiceBhai Technologies Pvt Ltd Total: ₹2,41,900 PDF attached. INV/ELE/26-004.pdf

Step 5

Forward to Client on WhatsApp

InvoiceBhai asks if you want to send the PDF directly to your client on WhatsApp. One tap and it's delivered.

Want me to forward this invoice to InvoiceBhai Technologies Pvt Ltd on WhatsApp? Reply Yes to send or No to skip.

Yes

Done! Invoice forwarded to InvoiceBhai Technologies Pvt Ltd on WhatsApp. Thank you for choosing InvoiceBhai. Have a great day!

Supported Input Methods

Send invoice details however is easiest for you.

Sharma ji ko 3 LED panels
₹4,500 each, GST 18%

IB Building your invoice...

Most common

Text

Type in any language: Hindi, English, Hinglish, or any regional language.

0:18

“Rajan Traders ko plywood 50 pieces, 85 thousand, labour 12 thousand...”

Hands-free

Voice Note

Record a voice message in Hindi, English, or any language. AI extracts all details.

Rajan Traders

04/04/26

Plywood ×50₹85,000

Hardware₹12,000

Labour₹8,000

AI extracted

Any receipt

Image / Photo

Snap a photo of a handwritten bill, purchase order, or printed receipt.

What You Get

A professional, GST-compliant PDF invoice, ready to send to your client.

Sample GST Invoice generated by InvoiceBhai

Company logo & branding

GSTIN & HSN/SAC codes

CGST / SGST / IGST breakdown

QR code for payment

Professional formatting

Quick Questions

Does it really auto-fill client details from a GSTIN?

Yes. Just share the client's GSTIN and InvoiceBhai fetches their registered name, address, and state from GST records automatically.

Can InvoiceBhai forward the invoice to my client directly?

Yes. After generating the PDF, InvoiceBhai asks if you want to forward it to the client on WhatsApp. One reply and it's sent.

What happens after an invoice is sent?

The chat resets so you're ready for the next invoice. Previously created invoices can't be edited in the same thread. Start a new chat for a new invoice.

How do I list multiple items?

Just list them one by one or all in one message: "1pc chandelier 50k, 1pc Bed 75k". InvoiceBhai picks up all items, quantities, and prices automatically.

Does it add HSN codes automatically?

Yes. InvoiceBhai maps each item to the correct HSN code based on the product description so you don't have to look them up.

Is my data safe?

Yes. Your data is never shared with any third party. Nothing is uploaded to any government portal without your explicit permission.

Ready to try it yourself?

7 days free · No credit card needed

Try Free on WhatsApp