Testing one jurisdiction at a time is available free elsewhere, and I would rather tell you that than have you find it later. What is here is the part that is genuinely work.
The nearest comparable charges £295 a year for a research corpus and £395 with its tools included. A single-purpose calculator cannot credibly ask more than that, so it asks less. It also sits where a tax manager can expense it without raising a requisition, which matters more than the number itself.
For context on the other side: survey evidence puts median external adviser spend on ongoing Pillar Two compliance at roughly €75,000 a year. This is well under one per cent of that line. I am not claiming it replaces any of it — only that checking your own position before the conversation makes the conversation shorter.
Founding licences, no payment, no card. If you are early enough to be reading this, ask me and I will send you a code. What I want in exchange is for you to tell me what is wrong with it.
If your procurement will not take a card, say so and I will raise an invoice. That is a normal request from a tax function and it does not slow anything down — your licence is issued when you ask, not when the invoice clears.
Your code appears on screen immediately — you are not waiting on an email that might land in a spam folder. It is emailed as well, as a backup. If anything goes wrong at any point, the page asks for the email you paid with and finds your licence, and failing that it puts you in touch with me. Nobody who has paid ends up with nothing.