Last updated: February 2026
This calculator runs entirely in your browser. We do not collect, store, or transmit any of your financial data. All calculations happen locally on your device — nothing is sent to a server.
We use Google AdSense to display ads. Google may use cookies to serve ads based on your prior visits to this or other websites. You can opt out of personalised advertising by visiting Google Ads Settings.
Google's use of advertising cookies is governed by Google's Privacy Policy.
We do not currently use any analytics or tracking services beyond what is included with Google AdSense.
This site may contain links to external resources (e.g. HMRC). We are not responsible for the privacy practices of other sites.
Questions about this policy? Open an issue on our GitHub repository.
We may update this policy from time to time. Changes will be posted on this page.