Invoice Generator

A GST-ready invoice with the payment instruction built into the page

How This Local-First Tool Works

• The QR encodes a standard upi://pay link with your VPA and the invoice total already filled in, so the client scans and confirms rather than typing an amount — which also removes the most common cause of short payments.
• CGST and SGST are shown separately for a same-state supply and IGST as a single line for inter-state, because a combined "GST 18%" line is one of the most common reasons an invoice is sent back by accounts.
• Bank details sit alongside the QR on purpose. Larger clients route payments through a finance department that pays by NEFT on a fixed cycle and often cannot use UPI at all.

Frequently Asked Questions

Do I need a GST number to invoice a client?

No. Below the registration threshold — ₹20 lakh of aggregate turnover in most states, ₹10 lakh in special category states — you can invoice on your PAN alone and charge no tax. Registration becomes mandatory once you cross it, and immediately if you import services.

How should I number my invoices?

Uniquely, sequentially, and without gaps inside a financial year. A gap looks like a deleted invoice and a deleted invoice looks like unreported income. If you cancel one, issue a credit note against it rather than reusing or deleting the number.

Can I invoice a foreign client in another currency?

Yes — pick the currency and the totals, formatting and amount-in-words follow it. Export of services is zero-rated under GST, so no tax line is added, though you should have a Letter of Undertaking on file to invoice without paying IGST upfront. The UPI QR only appears on INR invoices, since UPI settles in rupees.

Every Solo OS tool runs the same way: fill in the form, watch the document build, download the PDF. Nothing is uploaded and no account is required. When this document is done, the proposal generator, UPI invoice generator and PDF e-sign tool cover the rest of the engagement.