Privacy and cookies
What this site collects, what it does not, what happens to the numbers you type into a calculator, and how to control the cookies used for advertising.
Updated 15 September 2026
The calculators #
The figures you enter are not stored and are not sent anywhere. Nothing you type into a calculator is saved to a database, kept in an account, or passed to a third party. There are no accounts on this site.
The calculators submit to the server so they work without JavaScript. That means the figures appear in the page address and in ordinary web server logs, which are kept only for security and troubleshooting and are not used to build a profile of you. If you would rather a figure never appeared in a URL at all, clear the field before sharing the link.
Cookies used on this site #
Cookies are small files a site or its partners store in your browser. This site uses them in two ways, and neither is required to read any page.
| Purpose | Set by | What it does |
|---|---|---|
| Analytics | Google Analytics | Counts visits and which pages are used: pages viewed, approximate country, device type and how you arrived. Only set if you accept. Cookies named _ga and _ga_ followed by an ID, kept for up to two years |
| Advertising | Google and other ad partners | Serves ads, measures whether they worked, and limits how often the same ad is repeated |
Analytics #
Google Analytics sets no cookies until you accept it in the cookie choice shown on your first visit. Until then it sends Google only basic cookieless signals, such as that a page was viewed, with no identifier linking them to you or your device; Google uses these to estimate overall visit numbers. Accepting lets it set its cookies so visits are counted properly. You can change your mind at any time using Cookie settings at the bottom of any page, and rejecting after accepting deletes the analytics cookies already set.
The figures you type into a calculator are removed before anything reaches Google, so the reports show which calculator was used, never the numbers entered. Words typed into the site search are recorded, so that the search can be improved.
Advertising #
This site is funded by advertising. Advertising is served by third-party vendors, including Google, and those vendors may place and read cookies on your browser, or use web beacons and similar technologies, to serve and measure ads.
Google uses cookies to serve ads based on your prior visits to this and other websites. Google's use of advertising cookies enables it and its partners to serve ads to you based on that activity. Third-party vendors other than Google may also be used, and they may likewise set and read cookies.
How to control advertising cookies
- Where you are in the UK or the EEA you will be asked for your choices before personalised advertising cookies are set, and you can change those choices at any time
- You can opt out of personalised advertising by Google at Google Ads Settings
- You can opt out of many other vendors at aboutads.info and Your Online Choices
- Every browser also lets you block or delete cookies in its own settings. Blocking advertising cookies does not stop ads appearing; it stops them being tailored to you
Links to other sites #
Pages on this site link out to HMRC, GOV.UK, Companies House and software vendors so you can check any figure at its source. Once you follow a link you are on someone else's site, and their privacy policy applies, not this one.
If a link to a software product ever pays this site a commission, that will be stated on the page carrying the link. Commission never affects what a calculator outputs, which products appear in a comparison, or how they are ranked.
Email #
If you email, the message is kept in order to reply and to deal with any correction it raises. Messages are not added to a mailing list, and there is no newsletter.
Your rights #
Under UK data protection law you can ask what personal data is held about you, ask for it to be corrected or deleted, object to how it is used, and complain to the Information Commissioner's Office. Requests go to hello@businesstaxation.co.uk.
Children #
This site is aimed at people running a business and is not directed at children. It does not knowingly collect personal data from anyone under 13.
Changes to this policy #
Any change is made on this page and the date at the top is updated. The advertising and analytics sections are the ones most likely to change, because the vendors used can change.