Step-by-step guide to **permanently delete a Facebook account** on mobile and desktop. On mobile: open **Menu** (bottom-right) → **Settings & Privacy** → **Settings** → **Account Center** → **Your information and permissions** → **Account ownership and control** → **Deactivation or deletion** → pick the correct Facebook account → **Delete account** → **Continue** → (reason optional) → enter your password to verify → submit the request. On desktop: profile icon (top-right) → **Settings & Privacy** → **Settings** → **Account Center**, then follow the same path. Facebook shows a **30-day grace period**: logging back in during this window cancels the deletion; after it expires, the process proceeds and can’t be reversed. The walkthrough also clarifies the difference between **deactivation (temporary)** and **deletion (starts the permanent removal after the grace period)** to prevent mistakes.
