Registro Mercantil — the Spanish company register

A nota simple tells you what the Spanish register says; only a certificación proves it. The Registro Mercantil is Spain’s company register, kept by provincial registrars under the Commercial Code and the Reglamento del Registro Mercantil approved by Real Decreto 1784/1996. But entries bind third parties from a publication date, not from the day a board decides something, a company can be locked out of its own register for not filing accounts, and the evidence most onboarding teams collect carries a different legal weight from the one they assume.

1. What the Registro Mercantil is, and who keeps it

Article 16 of the Código de Comercio sets the register’s scope: individual entrepreneurs, commercial companies, credit institutions, insurers, investment funds, economic interest groupings and professional partnerships, plus the deposit of accounting documents. Article 17 places it under the Ministry of Justice, located in provincial capitals, and adds a Registro Mercantil Central in Madrid of a purely informative character.

Registrars are public officials, organised in the Colegio de Registradores. Under Article 18 of the Code, registration works from a public document — in practice a notarial escritura — and the registrar reviews the legality of form, the capacity of those who signed and the validity of the content before inscribing. The registrar has fifteen days from the entry of presentation to inscribe.

That vetting gives the register its force: Article 20 of the Code presumes its content accurate and valid, under the protection of the courts, until a judicial declaration of inaccuracy is itself inscribed. It remains a publicity register, not an authorisation one: permission to provide payment services is shown in the Banco de España’s registers.

2. The hoja registral — and the coordinates to record

The register runs on a personal-sheet system: Article 3 of the Reglamento, echoing Article 17 of the Code, gives each registered subject its own hoja, and every later act is written onto it in sequence. It sits in the registry of the registered office (Article 17 of the Reglamento). Inscriptions are numbered in sequence, written on numbered folios within numbered volumes (tomos).

Those coordinates belong in your data model. Article 30 of the Reglamento requires each registry’s index to carry, at a minimum, the name, registered office, tomo, folio, hoja number and tax identification number of each subject.

The hoja is not permanent: on a move to another province, Article 19 of the Reglamento has the new registry transcribe the old inscriptions onto a new hoja. The NIF stays; hoja, tomo and folio change.

3. What goes on the hoja — and what need not

Article 94 of the Reglamento lists what must be inscribed on a company’s sheet. Incorporation is always the first. Then: amendments to the articles and changes of capital; the appointment and removal of directors, liquidators and auditors, including the secretary of the board; general powers of attorney and delegations of authority, with their amendment and revocation; branches; transformation, merger, division, dissolution and liquidation; insolvency rulings; and submission to a supervisory authority.

The carve-out that matters for signing authority: Article 94 does not require inscription of powers granted for litigation or for specific, concrete acts. So a valid power to open one payment account can exist only in a notarial escritura and never reach the register. Absence from the nota simple is not evidence that a power does not exist — only that no general power has been inscribed.

Timing matters too. Article 19 of the Code makes inscription compulsory for companies and requires it to be sought within a month of executing the documents. For directors, Article 214 of the Ley de Sociedades de Capital makes an appointment effective from acceptance, and Article 215 requires the accepted appointment to be presented for inscription within ten days. A validly appointed director can be missing from the register for weeks.

Article 22 of the Code gives every branch its own hoja in the province where it is established, and Article 300 of the Reglamento requires a foreign company opening a Spanish branch to file legalised documents proving its existence, articles and directors. Serving Spain cross-border leaves no trace; a branch creates a hoja.

4. Nota simple, certificación, BORME — three products, three weights

Article 23 of the Code makes the register public and sets out the forms of publicity: a registrar’s certificate of the entries, or a simple informative note or copy. It then states the rule that decides most file reviews: the certificate is the only means of authoritatively proving the content of the entries. Article 77 of the Reglamento repeats it and reserves certification exclusively to registrars; Article 78 governs the nota simple.

The Boletín Oficial del Registro Mercantil is published by the central register. Article 420 of the Reglamento divides it into two sections: empresarios, carrying inscribed acts and other published acts, and anuncios y avisos legales. Article 421 excludes identity-document and tax numbers of individuals from publication, so BORME tells you that a named person was appointed, not which person by document number.

5. When a change binds you — inscription, publication, good faith

Article 21 of the Code, mirrored by Article 9 of the Reglamento, sets the rule a payments firm actually lives with. Acts subject to inscription are opposable to good-faith third parties only from their publication in BORME. For transactions within the fifteen days after publication, a third party that proves it could not have known of the act is still protected. Where publication and inscription differ, a good-faith third party may rely on the one that favours it.

Good faith is presumed unless it is proved the third party knew of the uninscribed or unpublished act. And under Article 4 of the Reglamento, a company cannot plead the lack of an inscription it was obliged to procure. So you may rely on the register until you are told otherwise: once a customer sends you a minute removing a director, your good faith is gone, whatever the register still says.

6. Filed accounts — and the closed sheet

Spanish capital companies deposit their annual accounts with the register. The directors prepare them within three months of year-end (Article 253 of the Ley de Sociedades de Capital); the general meeting must meet within the first six months to approve them (Article 164); and Article 279 requires deposit, with the approval certificate and, where applicable, the audit report, within the month following approval.

Miss the deposit and the sanction is structural. Article 282 imposes the cierre registral: while the failure persists, nothing concerning the company is inscribed. Article 378 of the Reglamento fixes the trigger at one year from the close of the financial year without a deposit. The exceptions are narrow: removal or resignation of directors and managers, revocation or renunciation of powers, dissolution and appointment of liquidators, and entries ordered by a court or authority. The closure lasts until the accounts are deposited, or it is shown in the prescribed form that they were not approved.

A closed sheet cannot show a new director or general power, so what it shows may be stale. Since the 2022 business-creation law (Ley 18/2022, in force 19 October 2022), a Spanish SL can be incorporated with one euro of capital; below three thousand euros, 20% of profit must go to the legal reserve and members are jointly liable for the shortfall in a liquidation. Low capital is no longer a red flag; a missing deposit is.

7. The register and the Registro Central de Titularidades Reales

Real Decreto 609/2023 created the Registro Central de Titularidades Reales, run by the Ministry of Justice through its Directorate-General for Legal Certainty and Public Faith, in force since 19 September 2023. Its sources include the Registros Mercantiles and the notarial beneficial-owner database. For commercial companies, the beneficial-ownership declaration sheet is filed with the annual accounts, and the directors must file a new declaration at the Registro Mercantil within ten days of learning of a change.

The decree ties this to the accounts deposit: failing to identify the owner, or omitting the sheet, triggers the same Article 378 closure. And Article 3 of the central register’s regulation requires obliged entities to report discrepancies between the central register and what they hold from other sources — except where their other information itself comes from the Registros Mercantiles or the notarial database.

8. Three scenarios from a Spanish onboarding queue

A new administrador who is not on the nota simple. An SL applies; the person signing is introduced as sole director, appointed three weeks ago. The nota simple still shows the predecessor. Under Article 214, the appointment took effect on acceptance, and Article 215 gave ten days to present it for inscription. The analyst requests the escritura or certified resolution showing acceptance, records the gap with a follow-up date, and closes the file when the inscription appears, not when the applicant says so.

An SL whose hoja is closed. The nota simple for a long-established customer shows the last deposited accounts are from three years ago and flags the closure. Article 282 means no new appointments or general powers can be inscribed, so the register’s director list may be out of date. Under Real Decreto 609/2023 the missing deposit also means no updated beneficial-ownership sheet. The analyst treats register data as historic, obtains current deeds and an ownership declaration directly, and escalates the non-filing: not proof of wrongdoing, but it owes an explanation.

An apoderado with a power that is not inscribed. A company’s finance manager presents a notarial power to open and operate payment accounts. It is absent from the nota simple. Article 94 does not require powers for concrete acts to be inscribed, so this may be perfectly regular. The analyst reads the copia autorizada. A specific power, granted by a director the register shows in office, is acceptable. An uninscribed general power is a finding worth asking about, and carries none of the register’s presumption of accuracy.

9. What to do, today

• Key on the NIF; store hoja, tomo, folio and registry as provenance.
• Define when a certificación is required, and keep it the exception.
• Watch BORME between refreshes for directors and powers, and date changes by publication.
• Test the accounts deposit against the calendar; a closed sheet downgrades everything else the register shows.
• Read the power, not the extract, when the signatory is an apoderado.
• Route beneficial-ownership discrepancies to the central register, minding the registry-data exception.

Related: Registro de Titularidades Reales — the Spanish UBO register · Registro Imprese — the Italian company register · What is SEPBLAC