Cookie policy

Last updated August 2026.

Strictly necessary cookies

We use a small number of essential cookies to keep you signed in, protect against cross-site request forgery, and meet HMRC's fraud-prevention requirements when you file. These are required to run the service and, under the rules, don't need your consent.

Analytics (off until you accept)

We use Google Analytics to understand how the site is used, in aggregate, so we can improve it. Analytics cookies are off by default: until you accept in the cookie banner (or switch it on below), Google Analytics runs in a cookieless mode that stores nothing on your device and receives only anonymous, aggregate signals. We don't use advertising or cross-site tracking cookies in any mode.

Your cookie choice

You can change whether we use analytics cookies at any time, right here:

You can also clear or block cookies in your browser settings, though signing in won't work without the essential cookies.