Account & security2 min readUpdated on April 23, 2026
How to enable two-factor authentication
Protect your Flinvo account with a second layer of security based on an authenticator app or SMS.
Two-factor authentication (2FA) adds a temporary code to login, making it much harder to access your account even if the password is compromised. We recommend it to everyone, especially if you manage tax data for multiple clients.
The steps
- 1Go to Settings → Security.
- 2Click Enable two-factor authentication and pick a method: authenticator app (recommended) or SMS.
- 3Scan the QR code with Google Authenticator, 1Password, Authy or similar.
- 4Enter the 6-digit code generated by the app to confirm.
- 5Save the recovery codes Flinvo shows in a safe place: you'll need them if you lose access to the device.
Prefer the authenticator app over SMS: it's more secure (not vulnerable to SIM swap) and works offline.
Disable or change device
You can disable 2FA or register a new device from the same page, confirming with your current password. If you lost access to the device and don't have recovery codes, write to support@flinvo.app from the account email.