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See it in actionAccounting isn't probabilistic. Neither is our engine.
Systems that “guess” are right almost every time. The problem: your books don't accept an “almost”. SunnyTaz works the other way round: it automates only what is verifiable, and when the law isn't black or white, it stops and hands it to you. Here's what happens inside.
The route of every document
Extract
Photo, PDF or forwarded email. The engine reads the raw data — amounts, VAT numbers, dates, line items — without a single keystroke.
Validate
Before any conclusion: VAT number checked live against VIES, balanced to the cent with exact arithmetic, and duplicates or mismatches checked against what's already booked.
Test against the law
The traffic light. Green: the rule is clear and gets applied — reverse charge included, without you needing to know what that is. Amber: grey area — the engine brakes and asks you for a decision, options included. Red: a data point is wrong — blocked until you fix it; there is no “book it anyway” for a mismatch.
Book or escalate
Green enters the ledger with its reasoning attached. Amber waits for your decision — and it's recorded: you, not a robot.
Six guarantees you can verify
Exact arithmetic
Every calculation is reproducible to the cent. Same document, same result, every time.
VIES, live
Intra-community VAT numbers are validated against the European register, not a stored list.
Doubtful items, in plain sight
What the engine can't resolve doesn't disappear into a drawer: it lands on the doubtful list, with the reason.
Verifiable fingerprint
Every document keeps its SHA-256 hash: you can prove the archived file is the one you uploaded.
Mirror closing
The quarter is laid out box by box like the official form: you copy, you don't interpret. And once filed, untouchable: the machine never reopens a declared quarter.
You sign
Nothing grey enters your books without your green light. Who decided stays on record, for the day someone asks.
The copilot that learns (and what it will never learn to do)
On top of the deterministic engine lives a copilot. It books nothing — that part is sacred and belongs to the engine and your signature — but it watches, remembers and warns.
It remembers your decisions
Mark a bank movement as private or ignore and next time that counterparty appears, it classifies itself — offering to apply the same mark to the similar ones you already had pending. Your judgement becomes rules; the rules remain yours.
It watches the gaps, with evidence
“The bank says a receipt is missing”: real charges from your statement with no invoice attached. And without waiting for the bank: if last month's usual expense — the phone, the hosting — hasn't arrived this month, it suggests it on its own, with the previous details preloaded, waiting for your confirmation.
An advisor inside your books, awake 24/7
Not a generic chat: it has your ledger in front of it — your expenses, your invoices, your quarter — alongside your region's tax doctrine and whatever you hand it in the Knowledge Vault. On a Sunday at 11 pm, too.
It knows its limits
Ask it something outside the perimeter — collective layoffs, mass retail — and it will say so, pointing you to a human advisor. A copilot that can't say “not mine” is a hazard; ours can.
House rule: what's learned suggests; only your signature books. No learned rule ever writes into your ledger on its own.
Want to see it in action?
The sandbox runs the engine with example documents, no account needed.