GST invoices
GST invoices with a UPI QR, from one message
Tell Sochen who to bill and for what: it makes a GST tax invoice as a PDF, with CGST and SGST or IGST worked out, numbered for the financial year, and a UPI QR code for the exact amount. Free, and it reminds you when an invoice goes unpaid.
7 days of Plus for $5, then a monthly plan if you want one. Nothing renews on its own.

How it works
- 1
Save your details once
Business name, GSTIN, address, UPI ID and bank details, on the Business page or just by telling Sochen. - 2
Ask for the invoice
“Invoice Rohan Traders, Pune, for 2 days of design at ₹8,000 a day, 18% GST, due in 7 days.” - 3
Send it, get paid
Download the PDF and send it with the ready message. The customer scans the QR and pays the exact amount.
What you get
The GST done right
CGST and SGST within your state, IGST to another, per line, rounded to the paise, with the round-off shown.Everything on the page
HSN or SAC codes, place of supply, the amount in words the Indian way (lakh, crore), your bank details and terms.Paid, or a reminder
Mark invoices paid in a tap. Overdue ones come up in Heads-ups, with a polite WhatsApp-ready reminder and the UPI link.Not registered? Fine.
No GSTIN, no GST: a clean plain invoice instead.
Questions
Is it free?+
Making an invoice costs no credits. Asking in a chat uses a little of the model, like any message, and new accounts start with a 7-day trial of Plus for $5.
How does it know CGST and SGST from IGST?+
From where you are and where the supply goes: within your state it charges CGST and SGST (half the rate each); to another state, IGST. Your state comes from your GSTIN, and the customer's from their GSTIN or the state you give.
What if I'm not registered for GST?+
Leave the GSTIN empty and Sochen makes a plain invoice with no GST, saying the seller isn't registered.
How are invoices numbered?+
In sequence for each financial year, like INV/2026-27/001, starting again on 1 April. You choose the prefix.
How does the UPI QR work?+
Save your UPI ID once and every invoice carries a QR for its exact amount, with the invoice number as the note. Your customer scans it with any UPI app and the money comes straight to you; Sochen never touches it.
Does it remind me when someone hasn't paid?+
Yes. Invoices are kept as unpaid until you mark them paid, and Heads-ups tells you when one is overdue, with a polite reminder ready to send.
More that Sochen does
Invoice in one message.
Save your business details and ask for your first invoice. It's free.