Commerce and sales tax
VAT, GST and sales tax on each sale, with tax-ID validation and a commerce ledger — and the same engine behind the books.
What inheritance tax is due on an estate of £1.2m with a family home and two prior gifts?
Exact inheritance tax liability is outside the calculator's declared scope. Only top-rate reference answers are available.
Routed to a qualified adviser, with the question and the reason attached.
What it does
Tax on each sale
Indirect tax computed per destination from configured rates with a law-as-of date.
Tax-ID validation
National tax-ID schemes validated at the point they are captured.
More than 100 national tax-ID schemes validated.
Commerce to ledger
The tax on each sale and the tax in the books come from one engine, so they cannot drift apart.
Configured rates, not a live feed.
Indirect tax uses stored rates with a law-as-of date. Calling that a real-time feed would be inaccurate, so this page does not.
A 2023 question is answered with 2023 law.
What inheritance tax is due on an estate of £1.2m with a family home and two prior gifts?
Exact inheritance tax liability is outside the calculator's declared scope. Only top-rate reference answers are available.
Routed to a qualified adviser, with the question and the reason attached.
The engineering detail
- Tax-ID schemes validated
- 100+
- Rate source
- Stored rates, with law-as-of date
Related
Tax calculation engine
Exact tax calculators built on the official rates for each tax year, with a law-as-of date on every figure and the assumptions behind each result shown.
Bookkeeping and accounting
Double-entry bookkeeping: journals, trial balance, invoices, VAT, payroll and fixed assets, every figure in exact decimal and every entry balance-checked.
Audit proofs and ledger integrity
Monthly signed audit proofs, a hash-chained ledger with a validator for the whole chain, five anomaly types detected, and a read-only auditor role.
Find out whether your jurisdictions are covered.
Coverage decides whether anything else on this site is worth your time, and it is published per country including the gaps. Ten minutes there can save you a call.
Decision support, not tax advice. A professional reviews before anything is filed.