Skip to content
Decibyl AI

Billing

Decibyl does not show prices in the app. When a payment is made, the documents for it are issued as described below, and they stay under Billing for as long as the account exists.

Invoices and receipts

Every payment produces a receipt voucher — a GST document with your registered name, GSTIN, place of supply, SAC 998314 and the tax split. Prices are shown exclusive of GST: 18% on plans, top-ups and overage, as CGST 9% + SGST 9% when your registered state is Tamil Nadu and IGST 18% otherwise.

GSTIN at checkout. Everyday can be bought without one. Business and above are invoiced as a business supply, so your GSTIN under Billing → Billing details is required before the plan can start; every plan needs your legal name, address and state first, because the first collection issues a document made out to them.

Enterprise invoices. Add your purchase-order number and agreed payment terms under Billing details and they print on every document. Our Udyam (MSME) registration number prints on every invoice.

Refunds and corrections are issued as a credit note against the original document, in its own numbered series, reversing the tax in the same proportion.

Outside India. Text-only plans are sold in US dollars as a zero-rated export of services under our Letter of Undertaking: the invoice states “Supply meant for export under LUT without payment of IGST”, carries no GST line, and shows your country and address.

They appear under Billing → Documents, where each one can be downloaded as a PDF or sent to your billing email.

Complete your billing profile first

Under Billing → Billing details, fill in your registered business name, GSTIN, address and billing email.

This matters more than it looks:

  • Your GSTIN and state code decide the tax split. A customer in the same state as us pays CGST + SGST; anywhere else in India pays IGST. The total is the same either way, but the split is what your accountant files.
  • A document issued before you complete this has no customer details on it, which makes it useless for claiming input credit.
  • Your billing email is where documents are sent. Without one they are still issued and downloadable, but nothing is emailed.

If documents were issued before you filled this in, open Billing → Documents and use the send button on each one — they will go to your billing email with the PDF attached.