Help

Set up an authenticator app

Last updated: 28 October 2026

With an authenticator app you do not need the code that arrives by email each time you sign in to the portal. The app shows a six-digit code that changes every 30 seconds and works only on your phone.

What you need

A phone and a free app that generates six-digit codes (TOTP). Well-known ones are Google Authenticator, Microsoft Authenticator, Aegis (Android) and FreeOTP.

Four steps

1. Install the app on your phone from its app store.
2. Sign in to the portal with your password and the code from the email. In the «My profile» menu, open the «Security» tab and press «Two-step verification».
3. Add the account by scanning the QR code with the app. If you cannot scan it, type the key shown below into the app and choose the time-based option.
4. Confirm by typing into the portal the six-digit code the app shows. From then on, you use the app's code instead of the one from the email.

If you change or lose your phone

Call your accounting firm first. They will help you sign in again and set up the app once more. Do not send your password or your codes by email or by message.

Frequently asked questions

Is it required? No. Without an app, each time you sign in you will receive a code by email. It is valid for 5 minutes and can be used only once.

The app code does not work. Wait for the code to change, because each one lasts 30 seconds. If it still fails, check that the phone's time is set to automatic: with the wrong time, the app creates codes the portal does not accept.

If you have questions, write to info@mbtcompany.es.