• Account details — your name, email address and password (stored hashed).
• Trading data — the trades, instruments and amounts you import or enter, which we use to calculate your gains.
• Usage data — basic technical logs needed to run and secure the Service.

We use your data only to provide the Service: to calculate your Capital Gains Tax figures, to let you (and anyone you explicitly authorise, such as your accountant) access your account, and to keep the platform secure. We do not sell your data.

Your financial data is private to your account. It is only visible to people you grant access to. We use a small number of trusted infrastructure providers (such as hosting and email) who process data on our behalf under appropriate agreements.

You can access, correct, export or delete your data at any time. You may delete your account, which removes your trading data. To exercise any of these rights, contact us using the link below.

We keep your data for as long as your account is active, or as needed to comply with legal obligations. We protect it with encryption in transit, hashed passwords, and optional two-factor authentication on your account.