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Electronic signature with identity verification: how to sign without an e.firma in Mifiel

If you don't have a valid e.firma, you can sign your documents using the electronic signature with identity verification. This process confirms who you are by comparing a photo of your face with the photo on your official ID.

Contents

  1. What you need before you start
  2. How to sign, step by step
  3. After you sign
  4. Frequently asked questions


What you need before you start

A valid official ID: an INE card or a passport from any country. It must be in good physical condition. Photocopies aren't accepted, and neither are IDs shown on a screen.

A device with a camera. We recommend a smartphone, since it gives the best results. You can also use a computer or tablet with a built-in high-resolution camera.


How to sign, step by step

Step 1. Open the invitation

    Look for the Mifiel invitation email in your inbox and click "Sign document."

    💡 We recommend opening it on your smartphone. Phone cameras usually work better for the verification, and you can finish everything on a single device.

    Haven't received the invitation? See this article.

    Step 2. Review the document

    The document will open in your browser, either on your smartphone or on your computer. Read it carefully, and if you agree with what it says, click the green "Continue to sign" button.

    Step 3. Choose where to continue

    If you opened the invitation on your smartphone, go straight to Step 4. If you opened it on your computer, choose one of these two options:

    Option A — Continue on your smartphone (recommended)

    Use your phone's camera to scan the QR code on the screen. The process will pick up on your phone.

    Option B — Continue on your computer

    Click the "Continue the process in your computer" link. For this option, you'll need a high-resolution webcam, either built-in or external.

    Step 4. Read the tips

    Before you start:

    • Find a well-lit spot, with no glare on your face or on your ID.
    • Take off glasses and hats, and move hair or anything else that covers your face.
    • Have your physical ID ready, and place it on a flat surface, like a table, when you photograph it.

    Then click "Begin Process"

    Step 5. Allow camera access

    Your browser will ask for permission to use your camera. Accept it.

    If you're using Firefox: check the "Remember this decision" box before you accept.

    Step 6. Take a photo of your face

    Follow the instructions on the screen.

    Step 7. Take photos of your ID

    Photograph your INE card or passport, following the instructions on the screen.

    Step 8. Type your name

    Type your full name exactly as it appears on your ID. You'll be asked to type it a second time to confirm it. Then click "Sign document."

    ⚠️ Signing is final. Once you sign the document, it can't be undone.

    Step 9. Confirm and sign

    You'll be asked to check one last time that your name is correct:

    • If you spot a mistake, don't sign. Click "No, return to edit."
    • If your name is correct, click "Yes, proceed to sign."

    Step 10. Confirmation

    You'll see a message on the screen confirming that your signature was recorded.


    After you sign

    By email. Once everyone who was invited has signed, you'll get an email with a link to download the signed document. If people still haven't signed, the email won't arrive until the last person signs.

    From the signing portal. You can download your documents at any time. Go to the Mifiel login page, enter your email address to get into the signing portal, and click "Download" in the documents table.


    Frequently asked questions

    What should I do if I run into trouble during the verification? See how to fix the most common errors here.

    I'm from another country and don't have an INE card. Can I still sign? Yes. Any valid passport is accepted, no matter what country issued it.

    What if the verification fails several times? The system will offer to connect you with a support agent who can help you finish. You won't have to start the signing process over.


    Have a question? Contact us through the chat by clicking the green button in the bottom-right corner of this page.