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Cookie & Local Storage Policy

Last updated: 10 March 2026

1. Introduction

This policy explains how Henry Opt uses cookies and similar storage technologies (including browser local storage) on our website. It should be read alongside our Privacy Policy.

Under the Privacy and Electronic Communications Regulations 2003 (PECR) and the UK General Data Protection Regulation (UK GDPR), we are required to tell you about the technologies we use and, where they are not strictly necessary, obtain your consent before using them.

2. What Are Cookies and Local Storage?

Cookies are small text files placed on your device by websites you visit. Browser local storage (localStorage) is a similar technology that allows websites to store data on your device, but unlike cookies, this data is not sent to the server with every page request.

Both technologies can be used to remember your preferences, save your work, and understand how the site is used.

3. Technologies We Use

Strictly Necessary (No Consent Required)

Name / KeyTypePurposeDuration
henryopt-scenarioslocalStorageSaves your tax calculation scenarios (salary, pension inputs, etc.) so they persist between browser sessionsUntil you clear browser data

This storage is strictly necessary for the calculator functionality you have requested and does not require your consent under PECR. The data never leaves your device.

Analytics (Consent Required)

Name / KeyTypePurposeDuration
None currentlyn/an/an/a

These technologies will only be activated after you give your consent via our cookie banner. You can change your preferences at any time.

4. How to Control or Delete Storage

You can manage or delete cookies and local storage through your browser settings:

  • Chrome: Settings → Privacy and Security → Cookies and other site data
  • Firefox: Settings → Privacy & Security → Cookies and Site Data
  • Safari: Preferences → Privacy → Manage Website Data
  • Edge: Settings → Cookies and site permissions

Please note that clearing local storage for Henry Opt will delete your saved tax calculation scenarios.

5. Third-Party Technologies

We do not allow third parties to set cookies or access data on your device through our website for their own purposes, except where explicitly listed in Section 3 above.

6. Changes to This Policy

We will update this policy whenever we add or remove cookies or storage technologies. The "Last updated" date at the top indicates the most recent revision.

7. Contact Us

If you have questions about our use of cookies or local storage, contact us at alecldarlow@gmail.com.