Cookie Policy
Last updated: March 2026
1. Introduction
This Cookie Policy explains how TaxWhizz.ai Ltd (“TaxWhizz”, “we”, “us”, or “our”) uses cookies and similar tracking technologies when you visit our website at taxwhizz.ai and use our AI-powered tax intelligence platform (the “Service”).
This policy is issued in compliance with the Privacy and Electronic Communications Regulations 2003 (PECR) and the UK General Data Protection Regulation (UK GDPR). It should be read alongside our Privacy Policy, which provides further details on how we collect and process your personal data.
By continuing to use our Service, you consent to the use of essential cookies. For non-essential cookies (analytics, marketing, and functional), we will request your explicit consent through our cookie consent tool before placing them on your device.
2. What Are Cookies?
Cookies are small text files that are stored on your device (computer, tablet, or mobile phone) when you visit a website. They are widely used to make websites work more efficiently, to provide a better user experience, and to supply information to website owners.
Cookies can be “first-party” (set by the website you are visiting) or “third-party” (set by a different website or service embedded in the page you are visiting). Cookies can also be “session cookies” (which are deleted when you close your browser) or “persistent cookies” (which remain on your device for a set period or until you delete them).
In addition to cookies, we may use similar technologies such as local storage, session storage, and pixel tags (also known as web beacons or clear GIFs). References to “cookies” in this policy include these similar technologies unless otherwise stated.
3. Types of Cookies We Use
We categorise the cookies used on our Service into four types:
3.1 Essential Cookies (Strictly Necessary)
These cookies are necessary for the Service to function and cannot be switched off in our systems. They are usually set in response to actions you take, such as logging in, setting your privacy preferences, or filling in forms. Without these cookies, the Service cannot operate properly.
Consent: Essential cookies do not require your consent under PECR, as they are strictly necessary for the provision of the Service you have requested. They are always active.
3.2 Analytics Cookies (Optional)
Analytics cookies help us understand how visitors interact with our Service by collecting information about pages visited, time spent on pages, navigation paths, error messages encountered, and other usage patterns. All data collected by analytics cookies is aggregated and anonymised where possible.
These cookies allow us to improve the performance and user experience of our Service. They are only set with your explicit consent.
3.3 Marketing Cookies (Optional)
Marketing cookies are used to track visitors across websites to display advertisements that are relevant and engaging to the individual user. They may be set by us or by third-party advertising partners and are used to build a profile of your interests and show you relevant advertisements on other sites.
These cookies are only set with your explicit consent.
3.4 Functional Cookies (Optional)
Functional cookies enable enhanced functionality and personalisation, such as remembering your language preferences, display settings, theme selections, and other customisation choices you make when using the Service. They may be set by us or by third-party providers whose services we have integrated into our pages.
If you do not allow these cookies, some or all of these features may not function properly. These cookies are only set with your explicit consent.
4. Specific Cookies We Use
The following table provides details of the specific cookies used on our Service:
4.1 Essential Cookies
| Cookie Name | Purpose | Duration | Type |
|---|---|---|---|
tw_session | Maintains your authenticated session after login. Required for the Service to recognise you as a logged-in user. | Session (expires when browser is closed) | First-party |
tw_auth_token | Stores your encrypted authentication token (JWT) for secure, persistent login across sessions. | 7 days | First-party |
tw_refresh_token | Stores your refresh token to obtain new authentication tokens without requiring re-login. | 30 days | First-party |
tw_csrf | Cross-Site Request Forgery (CSRF) protection token. Prevents unauthorised actions on your behalf. | Session | First-party |
tw_cookie_consent | Stores your cookie consent preferences to remember which categories of cookies you have accepted or declined. | 12 months | First-party |
4.2 Analytics Cookies
| Cookie Name | Purpose | Duration | Type |
|---|---|---|---|
_ga | Google Analytics: Distinguishes unique users by assigning a randomly generated number as a client identifier. Used to calculate visitor, session, and campaign data for site analytics reports. | 2 years | Third-party (Google) |
_ga_* | Google Analytics 4: Used to persist session state across page requests. | 2 years | Third-party (Google) |
_gid | Google Analytics: Stores and updates a unique value for each page visited. Used to count and track pageviews. | 24 hours | Third-party (Google) |
_gat | Google Analytics: Used to throttle the request rate to limit data collection on high-traffic sites. | 1 minute | Third-party (Google) |
tw_analytics | Internal analytics: Tracks anonymised usage patterns such as feature usage frequency and navigation flows to help us improve the Service. | 12 months | First-party |
4.3 Marketing Cookies
| Cookie Name | Purpose | Duration | Type |
|---|---|---|---|
_fbp | Facebook Pixel: Used to deliver, measure, and improve the relevancy of advertisements on Facebook and Instagram. | 3 months | Third-party (Meta) |
_gcl_au | Google Ads: Used to store and track conversions from Google advertising campaigns. | 3 months | Third-party (Google) |
tw_ref | Tracks the referral source that brought you to our Service for attribution and marketing analysis. | 30 days | First-party |
4.4 Functional Cookies
| Cookie Name | Purpose | Duration | Type |
|---|---|---|---|
tw_theme | Remembers your preferred visual theme (e.g., dark mode or light mode) so it persists across sessions. | 12 months | First-party |
tw_lang | Stores your language preference for the Service interface. | 12 months | First-party |
tw_calc_prefs | Remembers your calculator display preferences, such as default tax year and currency formatting. | 6 months | First-party |
tw_chat_settings | Stores your AI chat preferences, including display density and notification settings. | 6 months | First-party |
5. How to Manage Cookies
5.1 Our Cookie Consent Tool
When you first visit our Service, you will be presented with a cookie consent banner that allows you to accept or decline non-essential cookie categories (analytics, marketing, and functional). You can change your preferences at any time by accessing our cookie settings through the link in the footer of our website or through your account settings.
5.2 Browser Settings
Most web browsers allow you to control cookies through their settings. You can typically configure your browser to:
- Block all cookies or only third-party cookies;
- Delete cookies when you close your browser;
- Receive a notification before a cookie is stored;
- Delete existing cookies.
The method for managing cookies varies between browsers. You can find instructions for popular browsers at the following links:
Please note: If you block or delete essential cookies, some parts of our Service may not function correctly, and you may not be able to log in or use certain features.
5.3 Opt-Out of Third-Party Analytics and Advertising
You can opt out of certain third-party analytics and advertising cookies using the following tools:
- Google Analytics Opt-Out: Google Analytics Opt-Out Browser Add-On
- Your Online Choices: www.youronlinechoices.com — A service managed by the European Interactive Digital Advertising Alliance (EDAA) that allows you to opt out of online behavioural advertising from participating companies.
- Network Advertising Initiative: NAI Consumer Opt-Out
6. Third-Party Cookies
Some cookies on our Service are placed by third-party services that appear on our pages. We do not control the setting or use of these cookies. The third parties that set cookies on our Service include:
- Google (Analytics and Ads): Provides analytics data about how visitors use our Service and enables advertising conversion tracking. Google’s privacy policy: policies.google.com/privacy
- Meta (Facebook Pixel): Enables measurement and optimisation of advertising campaigns on Facebook and Instagram. Meta’s privacy policy: facebook.com/privacy/policy
- Stripe: Our payment processor may set cookies related to payment processing and fraud prevention. Stripe’s privacy policy: stripe.com/privacy
We recommend reviewing the privacy policies of these third parties to understand how they use cookies and process your data.
7. PECR Compliance
In accordance with the Privacy and Electronic Communications Regulations 2003 (PECR) as amended, we:
- Obtain your informed, specific, and freely given consent before placing any non-essential cookies on your device;
- Provide clear and comprehensive information about the cookies we use, their purposes, and their durations before seeking your consent;
- Use only strictly necessary cookies without consent, as permitted under Regulation 6 of PECR;
- Make it as easy to withdraw consent as it is to give it;
- Do not use pre-ticked boxes, bundled consent, or cookie walls to obtain consent;
- Keep records of consent for compliance and audit purposes.
8. Updates to This Cookie Policy
We may update this Cookie Policy from time to time to reflect changes in the cookies we use, changes in technology, or changes in applicable law. When we make material changes, we will update the “Last updated” date at the top of this page and, where appropriate, notify you through our cookie consent tool or by other reasonable means.
We encourage you to review this Cookie Policy periodically to stay informed about how we use cookies.
9. Contact Us
If you have any questions about our use of cookies or this Cookie Policy, please contact us:
- Email: privacy@taxwhizz.ai
- General Support: support@taxwhizz.ai
You also have the right to contact the Information Commissioner’s Office (ICO) if you have concerns about how we use cookies:
- Website: ico.org.uk
- Telephone: 0303 123 1113