Every closed folio can generate a GST invoice with the correct CGST/SGST split for room tariff and F&B line items. Properties above the applicable government turnover threshold also get real e-invoicing - an IRN (Invoice Reference Number) issued through a GST Suvidha Provider, not a locally generated number.
Generating an invoice
Once a stay is checked out and the folio is settled, open the folio and generate the GST invoice. If your property has e-invoicing enabled, the invoice is submitted for an IRN automatically as part of the same step - you don't need a separate action.
Cancelling an e-invoice
Government e-invoicing rules only allow an IRN to be cancelled within 24 hours of issue. Inside that window, cancelling from the invoice screen sends a real cancellation request and marks the invoice accordingly. Outside that window, the platform won't let you attempt it, because the government system itself will reject it - a credit note is the correct route for a correction after the 24-hour window has closed, the same way it would be with any other invoicing system.
Exporting to your accountant
Generated invoices export to a Tally-compatible format, so your accountant can bring them into your existing books without re-entering each one by hand.