In Spain, administrative and regulatory procedures are increasingly digitalised. For foreign companies with a presence in Spain, having a valid electronic identification method is becoming increasingly necessary. One recent example is electronic certificate non-resident entity Spain.
The new Alias Registry approved by the CNMC for alphanumeric identifiers used in SMS, MMS and RCS messages sent to Spanish numbers.
According to the regulatory timeline, from 7 June 2026, aliases must be registered and authorised. Otherwise, messages may be blocked. In addition, the registration process requires the use of electronic identification means recognised under Spanish regulations.
Below, we explain why this change matters and how to address it.
Why this matters for foreign entities
For non-resident entities, this means that when there is no sufficient operational electronic identification channel in Spain, it may be necessary to implement a solution that allows them to interact electronically with Spanish regulators.
In this context, obtaining a non-resident NIF and, subsequently, a Spanish electronic certificate for representatives may be required in many practical cases to complete the process.
The practical solution: non-resident NIF and Spanish electronic certificate
In these situations, one of the most common approaches is for the foreign entity to obtain a non-resident NIF and then apply for a Spanish electronic certificate for representatives.
The Spanish Tax Agency (AEAT) states that non-resident or non-established entities must have a NIF when carrying out transactions with tax relevance in Spain. In addition, both the AEAT and the FNMT have specific procedures to verify the representative’s documentation and issue the corresponding electronic certificate.
Beyond the CNMC: a growing trend
This should not be seen as an isolated case. The ongoing digitalisation of procedures before public bodies and regulators suggests that this requirement will become increasingly common in other areas.
It is not only about complying with a specific obligation, but about ensuring that a foreign entity can operate electronically in Spain with legal certainty, agility and responsiveness.
How LEIALTA can help
At LEIALTA, we support foreign entities in obtaining a non-resident NIF and a Spanish electronic certificate, a key element to operate before public bodies and regulators in Spain.
Although the process may seem straightforward, it requires proper document planning, international coordination and a clear understanding of formal requirements to avoid delays or issues.
We offer a comprehensive solution that allows foreign companies to obtain their electronic certificate efficiently and securely and, in many cases, without the need to travel to Spain, depending on the applicable procedure. This facilitates both operations and regulatory compliance.
In an increasingly digital environment, having this certificate is not just a formality, but a requirement to interact with the Administration and operate in the Spanish market.
