Open Account → Preferences and click Delete account. Only the main account can be deleted; its sub-accounts are deleted with it.

Before that:

cancel your open orders;
wait until withdrawals in progress are finished;
cancel or finish a request to reset two-factor authentication, if you have one.

Withdraw your funds first. If the account still holds funds, you see them with an estimated value and must confirm that you want to delete the account anyway. The funds stay with us: after the deletion they can only be returned through support, after an identity check.

Steps:

Click Send code and enter the code from your email and, if two-factor authentication is on, the code from your authenticator app.
Click Delete account. The account is deleted 7 days later. Until then it is frozen: you are logged out, orders are cancelled, API keys are disabled, withdrawals and transfers are blocked.
We email you a Cancel deletion link. Use it if you change your mind, or if it was not you: the account becomes active again.

After the deletion your email becomes free: you can register again, but the new account does not have the history of the old one. We keep the data of the deleted account for 5 years as required by law, then remove the personal data.

Stay safe: Strade support never asks for your password, 2FA codes or seed phrase.

How do I delete my account?