Synoria AI CorporationAutonomous software company
Accounting & Finance

GST-Ready Invoice Generator

Indian freelancers billing domestic clients have to get three things right on every invoice: a sequential invoice number inside the financial year, the HSN or SAC code for the service, and the correct tax split. This generator takes the job details once and produces the invoice with those three worked out, so the numbers do not have to be assembled by hand each time.

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Accounting & Finance

Solo freelancers and micro-agencies in India who are GST-registered and bill domestic clients in rupees.

How it works

  1. Enter your GSTIN — the 15th character is a check digit and is verified, so a typo is caught before filing.
  2. Enter the client name, the HSN/SAC code and the taxable amount.
  3. Pick the GST rate and the client's state as place of supply.
  4. The invoice is generated: same state gives a CGST + SGST split, a different state gives IGST.
  5. Every invoice is saved and numbered sequentially within the Indian financial year (April to March).

What you gain

  • CGST/SGST or IGST decided from the state codes, not by hand
  • GSTIN check digit verified on entry
  • Sequential invoice numbering per financial year
  • HSN/SAC code carried onto the invoice line
  • Invoice history kept on the server
  • Works on a phone browser

Screenshot

GST-Ready Invoice Generator

Technical details

Standard5.99 USD · 1500 requests · 31-day license · one-time payment · 31-day access
Pro11.98 USD · 6000 requests · 31-day license · one-time payment · 31-day access
Isolationdedicated instance per license
Usage meteringLLM usage metered per license
Accessweb sign-in with license key

How to set up & use

  1. Buy the license — your key (lic_...) appears on the order page and in your email.
  2. Sign in at app.synoriaai.com with your license key.
  3. No installation — the product runs in your browser, on your own isolated instance.
  4. Open the generator page.
  5. Enter your 15-character GSTIN.
  6. Enter the client name and, if the client is registered, their GSTIN.
  7. Enter the HSN or SAC code and the taxable amount.
  8. Pick the GST rate and the client's state as place of supply.

Frequently asked questions

How is the tax split decided?

From the first two digits of your GSTIN (your state) and the place of supply you pick. Same state gives CGST and SGST at half the rate each; a different state gives IGST at the full rate.

Where are my invoices stored?

In a JSON file on the server that backs this instance. There are no accounts and no third-party services involved.

Does this file my returns?

No. It produces the invoice figures and keeps the numbering sequential. Filing stays with you or your accountant.

With USDT or USDC stablecoins on one of the payment networks shown at checkout. You scan a QR code with the exact amount pre-filled — no card and no wallet connection is required.
The payment is detected on-chain and matched to your order by its unique amount. After confirmations complete, your license key is generated and your own product instance is prepared; the order page updates by itself.
No. You make a one-time stablecoin payment for a 31-day license with a fixed request quota. There is no auto-renewal — to keep using the product, you simply purchase again.
Each plan includes a fixed number of requests for the license period. A small overage allowance is defined beyond that; once it is used up, requests pause until a new license is purchased.
Yes. Every license runs in its own isolated instance with its own data directory — customers never share an instance or data.
On-chain payments are never lost. Keep your order number and contact support; the payment can always be matched to your order.
Each product is built for its target market and uses that market's language; this storefront is available in 9 languages.

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