Pro UPI QR

Write a rupee amount in words the Indian way (lakh and crore), as on invoices, receipts and cheques. For example 125050.50 → "One Lakh Twenty Five Thousand Fifty Rupees and Fifty Paise Only".

Calculate Indian GST on an amount, exact to the paisa: add GST to a price before tax, or take it out of a GST-inclusive price, split into CGST + SGST (sale within a state) or IGST (between states).

Calculate the interest a buyer owes a micro or small enterprise (Udyam-registered supplier) for paying late, under Section 16 of India's MSMED Act: three times the RBI Bank Rate (17.25% a year as of 7 Oct 2026), compounded monthly, from the day after the payment deadline (the agreed credit period, at most 45 days). Exact to the paisa.

Work out the UPI merchant discount rate (MDR) on a payment under the rules from 15 October 2026: 0.4% on person-to-merchant UPI payments above ₹2,000 (capped at ₹300), a flat ₹5 for essential-sector merchants and 0.02% for capital markets. Person-to-person payments, payments of ₹2,000 or less and small P2PM merchants (up to ₹1 lakh a month) pay nothing. Shows the 18% GST on the MDR and what the merchant keeps.

Create a UPI payment link (upi://pay) for an Indian UPI ID. On a phone it opens PhonePe, Google Pay, Paytm, BHIM or any UPI app with the payee, amount and note filled in. Use it to collect a payment, split a bill or put on an invoice. Returns the link and a proupiqr.in page with its QR code and printable poster. Amounts are exact to the paisa; nothing is stored. It never moves money: the payer approves the payment in their own UPI app.

Explain a failed UPI payment from its error code or message (e.g. U30, ZM, XH, Z9, U16, or "debit has been failed"): what it means, which side caused it, whether money was debited and when it comes back, and what the payer or merchant should do next. Covers 42 common NPCI and bank codes.

Find the free Pro UPI QR tool for a task: invoices, receipts, rent receipts, salary slips, quotations, GST and MSME tools, UPI QR posters and stickers, calculators and guides. Returns matching tools with links; they run in the browser with no signup.

Generate a UPI payment QR code (PNG image) for an Indian UPI ID that PhonePe, Google Pay, Paytm, BHIM and every UPI app can scan, optionally with a fixed amount and note. Also returns the upi:// link and a proupiqr.in page to download a printable counter poster or stickers. Nothing is stored. It never moves money: the payer approves the payment in their own UPI app.

Read a UPI payment link (the upi://pay… text inside a payment QR code) and check it: who gets paid, the amount, the note and any merchant fields, with warnings about anything malformed or risky, such as an AutoPay mandate posing as a payment. Use it before paying from a QR someone sent, or to find out why apps reject a QR.