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UK Tax Tools

Privacy Policy

Last updated: 2026-04-19

This notice explains how UK Tax Tools ("we", "us", "the site") collects and uses personal data. The site is operated from the United Kingdom and this policy is governed by the UK General Data Protection Regulation (UK GDPR) and the Data Protection Act 2018.

1. What we collect

We collect the following categories of data:

  • Calculator inputs — salary, age, filing circumstances, etc. These never leave your browser. They are stored in your URL (so you can share a link to a result) and may be persisted in localStorage on your device. We do not receive, transmit, or log them on any server.
  • Analytics — Google Analytics 4 collects anonymised usage data (page viewed, referrer, device type, country-level IP, session duration). See section 3.
  • Advertising — Google AdSense may set cookies to deliver and measure ads. See section 4.
  • Server logs — our hosting provider (Cloudflare Pages) logs request metadata (IP, user-agent, referer, timestamp) for up to 30 days for abuse prevention and debugging.
  • Email correspondence — if you email us, we keep the message until the matter is resolved (typically up to 12 months).

2. Lawful bases

  • Consent (UK GDPR Art. 6(1)(a)) — for analytics and advertising cookies. You can withdraw consent at any time via the cookie preferences link in the footer.
  • Legitimate interests (Art. 6(1)(f)) — for server logs (fraud/abuse prevention and service reliability).
  • Consent/contract — for email correspondence you initiate.

3. Google Analytics 4

We use Google Analytics 4 (property G-402Z110JCT) to understand aggregate usage. By default, Google Analytics is loaded with Google Consent Mode v2 set to denied for all purposes. Pings are sent only if you accept analytics cookies via our consent banner. IP addresses are truncated by Google before logging. Data retention in GA4 is set to the minimum permitted (2 months for event data, 14 months for user-level data). We never cross-reference analytics data with a named individual.

Google, as the data processor, may transfer data to the United States under the EU–US Data Privacy Framework and UK Extension. See Google's Privacy Policy.

4. Google AdSense

We use Google AdSense (publisher ID ca-pub-8777600112471606) to serve ads. AdSense uses cookies and similar technologies to serve ads based on prior visits to this and other websites. With Consent Mode v2 set to denied by default, AdSense initially serves only non-personalised ads. If you grant consent, personalised ads may be served based on your interests.

You can opt out of personalised Google advertising at any time at adssettings.google.com, or opt out of third-party vendor cookies at youradchoices.com.

5. Cookies

A full list of cookies we may set, their purpose, and their duration is available on our Cookie Policy page. You can accept, reject, or change your preferences at any time using the "Cookie preferences" link in the footer.

6. International transfers

Analytics and advertising data may be processed outside the UK/EEA (primarily in the United States). Transfers rely on the UK Extension to the EU–US Data Privacy Framework or on the UK Addendum to the EU Standard Contractual Clauses.

7. Your rights

Under UK GDPR you have the right to:

  • access the personal data we hold about you
  • request correction of inaccurate data
  • request erasure
  • restrict or object to processing
  • withdraw consent for cookie-based tracking at any time
  • lodge a complaint with the Information Commissioner's Office (ico.org.uk, 0303 123 1113)

To exercise any of these rights, you may lodge a complaint or request directly with the ICO (ico.org.uk, 0303 123 1113), who will liaise with the site operator on your behalf.

8. Children

UK Tax Tools is not directed at children under 13. We do not knowingly collect data from children. If you believe a child has provided us with data, please contact us and we will delete it.

9. Changes to this policy

We may update this policy to reflect changes in our practices, hosting, or the law. The "Last updated" date at the top indicates the most recent revision.

10. Complaints

UK Tax Tools is not required to appoint a Data Protection Officer. For privacy complaints or rights requests, contact the Information Commissioner's Office (ico.org.uk, 0303 123 1113), who is the UK supervisory authority for data-protection matters.