About TrueCalci

TrueCalci publishes calculators for tax, loans, savings schemes, business and maths. The same calculations are available on these pages, through a REST API and to AI assistants over the Model Context Protocol (MCP).

How the figures are checked

• Every tax rate, threshold and scheme rate comes from a dated rule taken from the official source: the government notification, act or published schedule. Each calculator page names its source under "Method and limitations".
• Official sources are read again on a schedule. When a published figure changes, the change is checked before it is used; until then the last checked figure stays, with its date.
• Arithmetic is exact decimal, not floating point, so the same inputs always give the same answer.
• When an input that changes the answer is missing, the calculator says what it needs instead of guessing. A calculation that returns no answer is not charged.

What TrueCalci is not

TrueCalci is a calculation tool. It is not a tax adviser, a bank, a lender or a government body, and it does not file returns. Check important figures with a qualified professional and the official source. See the disclosures and the terms.

Contact

Questions, corrections and reports of a wrong figure: support@truecalci.com or the support page. A reported figure is checked against its official source and corrected if it is wrong.