Last updated: 18 March 2026
SMP Calculator ("we", "us", or "our") operates the website smp-calculator.co.uk. This privacy policy explains how we collect, use, and protect your information when you use our website.
Our SMP calculator runs entirely in your browser. The earnings figures and dates you enter into the calculator are processed locally on your device and are never sent to our servers. Calculation history is stored in your browser's local storage and is not accessible to us.
We do not use any analytics service on this website. Nothing records the pages you visit, the time you spend on them, or how you found us, so we hold no visitor statistics at all.
Our website uses:
You can clear local storage and cookies at any time through your browser settings.
We use Google AdSense to display advertisements on our website. Google AdSense may use cookies and similar technologies to serve ads based on your prior visits to this and other websites. You can opt out of personalised advertising by visiting Google Ads Settings.
Since calculator data is processed locally in your browser and we do not collect personal financial information, there is minimal data security risk. Our website is served over HTTPS to ensure secure communication between your browser and our servers.
Under the UK General Data Protection Regulation, you have the right to:
To exercise any of these rights, please contact us using the details below.
Our website is not directed at children under 13. We do not knowingly collect personal information from children under 13. If you believe a child has provided us with personal data, please contact us so we can take appropriate action.
Our website may contain links to external sites such as GOV.UK and HMRC. We are not responsible for the privacy practices of these external websites. We encourage you to read the privacy policies of any external sites you visit.
We may update this privacy policy from time to time. Any changes will be posted on this page with an updated revision date.
If you have any questions about this privacy policy, please contact us at:
Measurement cookies, which count visits so we can see which pages are worth keeping, are only set if you agree to them. When you first visit you are asked, and nothing is stored until you answer. Declining is a single click on the same footing as accepting.
Advertising cookies are a separate question, asked separately by Google's own certified notice rather than by us. Google is the advertising partner, the cookies are set by Google, and only its notice is certified to record that choice and pass it on, so we do not ask on its behalf.
You can change your mind at any time using the Cookie settings link in the footer of any page. Your measurement choice is kept in your browser's own local storage, on your device: it is never sent to us and is not used to identify you.
Cookies already set by an earlier choice can be cleared through your browser settings.