This page explains, in plain language, what information StampDutys.com does — and does not — collect when you use our stamp duty, mortgage and property calculators, including how cookies and advertising work on this site.
This Privacy Policy applies to StampDutys.com (the "site", "we", "us") and covers every calculator and page on the site. For the purposes of UK data protection law (the UK GDPR and the Data Protection Act 2018), the data controller is the operator of StampDutys.com. If you have any question about this policy or about your data, please get in touch via our Contact Us page.
This policy should be read alongside our Cookie Policy, which sets out the specific cookies used on this site, and our Terms of Service, which govern your use of the calculators themselves.
StampDutys.com is a static set of calculators. There is no user registration, no login, and no account of any kind. The figures you type into a calculator — purchase price, rent, mortgage amount, and so on — are processed entirely in your own browser using JavaScript, and are not transmitted to, or stored on, our servers. We do not see or retain your calculator inputs.
That said, visiting any website inevitably involves some data processing. Depending on your settings and on which services are active at any given time, the following may apply to you:
We do not knowingly collect names, postal addresses, payment details, or any other directly identifying information through the calculators themselves.
This site may display advertisements served by Google AdSense. Google, as a third-party vendor, and its advertising partners use cookies — including what has historically been known as the "DoubleClick cookie" — to serve ads to visitors based on their prior visits to this website and other websites across the internet. This is known as interest-based or personalised advertising.
Google's use of advertising cookies enables it and its partners to serve ads based on your visits to this site and/or other sites on the internet. You can find out more about what data Google collects from sites that use its services, and how that data is used, on Google's own page, "How Google uses information from sites or apps that use our services."
You can manage or opt out of personalised advertising served by Google at any time by visiting Google's Ads Settings page. Full details of every cookie this site sets, including those set by advertising partners, are listed in our Cookie Policy.
Advertising on this site may be delivered by Google and other third-party advertising companies, who may also use cookies, web beacons, or similar technologies to collect information about your visits to this and other websites, in order to provide advertisements about goods and services that may interest you.
If you would prefer not to receive personalised advertising from participating companies, you can opt out through www.aboutads.info, or, for Google specifically, through Google's Ads Settings page. Opting out does not mean you will see no advertising at all — it means the ads you see will no longer be based on your browsing history.
At present, StampDutys.com does not run a dedicated analytics platform. If we add one in future — for example, Google Analytics — it would typically collect aggregated, non-identifying information such as pages viewed, time on site, approximate location (derived from IP address), device and browser type, and how visitors arrived at the site. This data would be used only to understand how the site is used and to improve it, not to identify individual visitors personally. Should this change, this policy will be updated to reflect it, together with the relevant entry in our Cookie Policy.
Where we do process personal data about you (for example, through cookies or advertising), UK data protection law gives you a number of rights, including the right to:
To exercise any of these rights, or if you have a concern about how your data is handled, please contact us via our Contact Us page. You also have the right to lodge a complaint with the UK's independent data protection regulator, the Information Commissioner's Office (ICO), at ico.org.uk.
StampDutys.com is a financial-calculation tool aimed at adults dealing with property, mortgage and tax matters, and is not directed at children. We do not knowingly collect personal data from children. If you believe a child has provided us with personal data, please contact us via our Contact Us page so that we can address it.
Because calculator inputs are processed only in your browser and are never sent to our servers, we do not retain them. Any data collected by cookies or by third-party services such as Google AdSense (or any analytics tool we may add) is retained according to that provider's own policies, which we encourage you to review. We take reasonable technical and organisational steps to keep this site secure, but no website or data transmission can be guaranteed to be completely secure, and we cannot accept liability for matters outside our control, including the practices of third-party services embedded on this site.
We may update this Privacy Policy from time to time, for example to reflect a new feature, a new advertising or analytics partner, or a change in the law. Any changes will be posted on this page with a revised "last updated" date below, so please check back periodically.
Last updated: 13 November 2026.
For the full list of individual cookies set on this site, including those set by advertising providers, see our Cookie Policy. For general, independent guidance on cookies, advertising technologies and your data protection rights in the UK, see the Information Commissioner's Office at ico.org.uk.