Mercurio system for Spanish immigration applications: a practical guide

Mercurio system for Spanish immigration applications: a practical guide

Mercurio system
Mercurio System

The Mercurio system is the online platform of the Ministry of Inclusion, Social Security and Migration for submitting applications and renewing immigration authorizations in Spain. It allows you to complete most procedures without visiting an Immigration Office, provided you have a digital certificate or Cl@ve.

What is the Mercurio system?

Mercurio is the government online portal provided by the Ministry of Inclusion, Social Security and Migration for submitting residence and work authorization applications online. It was launched to replace the former system, which required applications to be submitted in person, and now allows most applications to be processed without travelling to an office.

It should not be confused with the Ministry of Foreign Affairs platform, which handles consular visas, or with the Central Civil Registry. Mercurio is specifically for Spanish immigration procedures carried out in Spain.

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Important: Mercurio handles residence and work authorizations. To apply for a visa from abroad, you must contact the Spanish consulate in your country. To track citizenship applications, use the Central Civil Registry.

What procedures can you complete through Mercurio?

The platform covers both initial applications and renewals. These are the main ones:

Procedure Available through Mercurio Notes
Arraigo social (social-integration residence route) ✓ Yes Initial application and renewal
Arraigo laboral (former employment-related residence pathway) ✓ Yes Initial application and renewal
Arraigo familiar (family-based residence route) ✓ Yes Initial application and renewal
Family reunification ✓ Yes Initial application
Non-lucrative residence ✓ Yes Initial application and renewal
Residence for employment (employed work) ✓ Yes Submitted by the employer
Long-term residence (Spain and EU) ✓ Yes Initial application
Humanitarian grounds ~ Partial Depending on the type of circumstance
Immigration appointment ✗ No Managed through sede.administracion.gob.es

How do you access the Mercurio platform?

To use Mercurio, you need to identify yourself electronically. The system accepts the following methods:

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Digital certificate

Issued by the FNMT or other recognised entities. This is the most common method for individuals.

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Electronic DNI

Valid if you have a card reader and an activated chip. For Spanish citizens only.

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Cl@ve PIN / permanent Cl@ve

The Government’s identification system. You must register in advance, either at an office or online.

Once you have identified yourself, access the online portal of the Ministry of Inclusion: extranjeros.inclusion.gob.es. From there, you will find direct access to Mercurio under online procedures.

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If you do not have a digital certificate: you can apply for one free of charge on the FNMT website. You will need to go in person to a registration office (Tax Agency, Social Security or municipal council) to verify your identity.

Steps for submitting an application through Mercurio

The process varies depending on the procedure, but generally follows these steps:

1
Log in and identify yourself

Access the online portal using your digital certificate, electronic DNI or Cl@ve. If you are acting on someone else’s behalf, you need a power of attorney.

2
Select the procedure

Choose the type of authorization that applies to your situation. If you are unsure, first consult the guide for each type of residence before starting.

3
Complete the EX form

Each procedure has its own form (EX-01, EX-03, EX-10, etc.). Errors in your personal details or NIE can delay or invalidate your application.

4
Attach the required documents

Upload the documents as PDFs. Each file must be no larger than 5 MB. Foreign documents must bear an apostille and be translated by a sworn translator.

5
Pay the fee (if applicable)

Some residence authorizations require payment of the Form 790 fee in advance. The platform is integrated with the Tax Agency for online payment.

6
Sign and submit

Sign electronically and submit your application. You will receive a filing receipt with an application reference number. Keep it to check your application status and for future procedures.

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Tip: Before submitting, download and save a copy of everything you attach. If the authorities request additional documents, you will also have to submit them through Mercurio, under the same application.

Residence permit renewal deadlines

Meeting renewal deadlines is essential to avoid losing your legal status in Spain.

Situation When to renew Consequence
Within the deadline Up to 60 days before expiry Regular status while your application is being processed
Grace period Up to 90 days after expiry Permitted, but may result in an administrative penalty
Outside the deadline More than 90 days after expiry Irregular immigration status: a new procedure is required
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Don’t wait until the last minute. During periods of high demand, you may have trouble accessing the platform. Ideally, start the process 3 months before expiry.

Do I need an immigration adviser or lawyer to use Mercurio?

It’s not mandatory, but it depends on your situation. If your case is straightforward (a renewal with no issues and complete documentation), you can manage it yourself. It’s advisable to seek professional advice if:

  • You have a criminal record or previous administrative penalty proceedings
  • Your application has previously been refused
  • Documents from your country of origin are difficult to have apostilled
  • You’re unsure which type of authorization applies to you
  • You need to appeal an administrative decision

Do you have questions about your application in Mercurio?

Our immigration lawyers can review your case and advise you before you submit your application.

Consult a lawyer →

How can I check my application status?

Once you have submitted your application, you can check its status in two ways:

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Through the Mercurio platform

Log in with your digital certificate and go to “My applications.” You will see the latest status, the documents you have submitted and whether any requests for additional documents are pending.

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Using your application reference number

In some provinces, you can check the status by entering your application reference number on the Government Delegation’s website, without a digital certificate.

The system sends notifications to the registered email address. Check it regularly: requests for additional documents must be answered within 10 working days. If you do not reply by the deadline, your application may be archived.

Frequently asked questions about Mercurio

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Can I use Mercurio without a digital certificate?
No. Access to Mercurio requires electronic identification: a digital certificate, DNI electrónico or Cl@ve. If you do not have any of these, you must apply for them before using the platform, or act through a representative who does have them.
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My application was refused. What can I do?
You have the right to file an administrative appeal to a higher authority within one month of being notified of the refusal. If the appeal is also refused, you can seek judicial review before the administrative courts. In both cases, it is highly advisable to obtain specialist legal assistance.
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How long does it take for an application to be decided?
The legal time limit is 3 months from the date of submission. If no response is received within that period, positive administrative silence applies. In practice, processing times vary by province: from 1 month to more than 6 months in areas with a higher volume of applications.
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Do I book an appointment for immigration procedures through Mercurio?
No. Appointments at Immigration Offices are booked through the Ministry of the Interior’s government online portal (sede.administracion.gob.es), not through Mercurio. Appointments are for procedures that require you to be physically present, such as having your fingerprints taken for the TIE.
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What happens if I make a mistake on a form I have already submitted?
Once you have submitted the application, you cannot amend the form. If the error is significant (incorrect personal details or an incorrect NIE), contact the Government Delegation in your province or wait for a request to provide missing or corrected documents. In serious cases, you may need to withdraw the application and submit it again.
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What format should I use to upload documents?
The platform mainly accepts PDF. Each file must be no larger than 5 MB. If you have documents in other formats (images, Word files), convert them to PDF before uploading.

Sources linked in this guide

Official sources

extranjeros.inclusion.gob.es Ministry of Inclusion, Social Security and Migration
General information

This content is for informational purposes only and does not replace professional legal advice or information provided by the competent authorities.

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