Privacy Policy

Last updated: 19 February 2026

This policy explains what information we collect and how it is used on selfemployedtax.co.uk.

Data we collect

• Account data: email address and password hash when you register.
• Saved run data: tax-year input and output values you choose to save.
• Contact data: name, email, subject, and message when you submit the contact form.
• Basic technical data: IP address and user-agent in server request logs/contact records.

How data is used

• To provide account sign-in and saved run functionality.
• To respond to contact requests.
• To secure and maintain the service.

Cookies and sessions

We use a secure session cookie for account authentication. This cookie is needed for sign-in and saved runs.

Advertising and third parties

If ad services are enabled in future, third-party providers may use cookies according to their own policies.

Your choices

You can request account updates and deletion-related questions through the contact page.