Trust and editorial standards

Our standards

• Every calculator publishes its formula, assumptions, limitations and review date.
• Tax thresholds link to the responsible authority. Editable interest rates and borrowing limits are modelling assumptions, not verified live offers.
• Results are always labelled as illustrations, never as offers or advice.
• Unconnected partner placeholders are not displayed. Paid document templates are separate from the free calculation.
• Calculations are covered by automated tests, including edge cases and every UK jurisdiction.

Your data

Calculators run entirely in your browser. The figures you type are not sent to us or stored on a server. See our privacy notice.

Corrections

If you believe a figure or threshold is wrong, use the contact page. Include the page address, non-identifying sample inputs and the official source or calculation you expected. A reported issue is checked against the calculation and source; confirmed errors are corrected with an explanation where relevant. Never send account numbers, bank statements or identity documents.

Review dates and source hierarchy

Tax authorities are the source for tax rules; FCA and MoneyHelper material explain lending and consumer choices. Source links are not endorsements. News is a third-party headline collection, not our own reporting, and it does not update the calculation data. Review dates are not a promise of daily monitoring or professional sign-off.

Limits of what we can do

We cannot tell you whether a mortgage is suitable for you, whether a lender will accept you, or what tax you will actually pay on a specific transaction. Those depend on your circumstances and are matters for an FCA-regulated adviser, a lender and a conveyancer.