Explainable GST & Statutory Decision Engine — what it does
Answers the questions that decide how an invoice must be raised: what is the place of supply, is this inter-state or intra-state, does an E-Way Bill apply, is e-invoicing mandatory for this turnover. Every answer comes with the reasoning and the section it rests on, so you can show your working rather than trusting a black box.
How to use Explainable GST & Statutory Decision Engine
- Enter the supplier state, recipient state and, for services, the nature of the supply.
- Add the invoice value, whether the movement is by the supplier or the recipient, and the turnover band.
- Read the decision: place of supply, tax head (IGST vs CGST+SGST), E-Way Bill requirement and threshold, e-invoice applicability.
- Open the reasoning panel to see which rule produced each answer — useful when a client or an auditor questions the treatment.
- Copy the reasoning summary into your working file or a note to the client.
Worked example: services billed from Gujarat to a client in Gujarat
A consultant in Ahmedabad bills a company registered in Surat. Both are in the same state, so the default is CGST+SGST — but for services linked to an immovable property the place of supply follows the property, not the recipient. The engine shows both the default and the exception, which is exactly the case where a wrong call gets reversed later with interest.
At a glance
| Decides | Place of supply, IGST vs CGST+SGST, E-Way Bill, e-invoice applicability |
|---|---|
| Also covers | Reverse charge situations and threshold limits |
| Output | The decision plus the statutory reasoning behind it |
| Where it runs | In your browser, with no client details sent anywhere |
Frequently asked questions
- What is Explainable GST & Statutory Decision Engine?
- Evaluates Place of Supply, Inter vs Intra State tax, E-Way bill limits, E-Invoice rules, and generates statutory reasoning for Tally & GST portals.
- Is Explainable GST & Statutory Decision Engine free to use?
- Yes — Explainable GST & Statutory Decision Engine is free to use, with no sign-up, no install and no account.
- Does Explainable GST & Statutory Decision Engine upload or store my data?
- No — Explainable GST & Statutory Decision Engine runs entirely in your browser, so your text, files and results never leave your device.
- Do I need to install anything to use Explainable GST & Statutory Decision Engine?
- No — it works in any modern browser (Chrome, Edge, Firefox, Safari) with no downloads, accounts or plugins.
- Can I rely on this for filing without checking with a CA?
- It gives you the reasoning and the rules, which is what most day-to-day billing decisions need — and it is far better than guessing. For notices, refunds, exports and anything with penalties attached, treat this as the input to a professional opinion, not a replacement for one.
- Does it cover services as well as goods?
- Yes. Goods and services diverge mainly on place of supply, so the engine asks for the supply type and applies the services rules — including the immovable-property and event-based exceptions — where they apply.