NIFs reinstated by the AEAT in 2026: what it means and what to do now

Key data

If your NIF or your company's NIF was revoked, the situation has changed. The Tax Agency has published, through the Resolución de 24 de marzo de 2026 (BOE-A-2026-7270), the reinstatement of certain previously revoked tax identification numbers. From that date, the holders included in the resolution recover their full capacity to operate in fiscal and commercial transactions.

The revocation of a NIF is not a minor issue: it effectively blocks all economic activity of the holder. Reinstatement is the legal way out of that situation, but its practical effects are not automatic: there are steps that must be taken.

What does this regulation establish?

The resolution publishes the reinstatement of NIFs in accordance with the procedure established in the Reglamento General de las actuaciones y los procedimientos de gestión e inspección tributaria. The reinstatement restores the full validity of the tax identification number, which had previously been revoked by the AEAT.

To understand the scope, it is useful to be clear about the difference between the two states:

The resolution acts as an administrative act of public notice: by being published in the BOE, third parties (banks, notaries, registries) have official notice of the reinstatement.

Economic and operational impact

The impact of having a revoked NIF is immediate and severe. It is not a direct financial penalty, but an operational blockade that can completely paralyse the activity of a company or self-employed individual:

• Bank accounts: financial institutions may cancel or freeze accounts associated with the revoked NIF, preventing collections, payments and direct debits.
• Notarial operations: notaries may refuse to authorise deeds, blocking property sales, company incorporations, capital increases or any act requiring a public deed.
• Registry registrations: registrars may deny registrations at the Mercantile or Property Registry, preventing legal acts from having effect against third parties.

Reinstatement removes all these blockades. However, the resolution does not automatically reactivate services that were suspended: the holder must proactively communicate the reinstatement to each entity with which they operate.

Who is affected?

• Natural persons whose NIFs appear in the reinstatement resolution published on 30 March 2026.
• Legal persons (companies, associations, foundations or other entities) whose NIFs have been reinstated by the AEAT in this resolution.
• Financial institutions that had blocked accounts or services associated with revoked NIFs: they must update the NIF status in their systems.
• Notaries and registrars who had denied operations due to a revoked NIF: the resolution published in the BOE gives them official notice of the reinstatement.
• Business partners and suppliers of the reinstated holders: they may resume contractual relationships with full guarantees.

Practical example

A limited liability company had its NIF revoked for several months. As a result, its bank had blocked the company's current account, preventing the collection of invoices from clients and payments to suppliers. In addition, it had attempted to register a capital increase at the Mercantile Registry, an operation that was denied by the registrar upon detecting the revoked NIF.

Following the publication of the Resolución de 24 de marzo de 2026 in the BOE (BOE-A-2026-7270), the company's NIF is reinstated with full validity. However, the bank will not unblock the account automatically: the company's director must go to the financial institution with documentary evidence of the reinstatement (a copy of the BOE resolution) and expressly request the reactivation of services. The same applies to restarting the registry registration process for the capital increase.

What should businesses do now?

1. Check whether your NIF is included in the resolution by consulting the text published in the BOE with reference BOE-A-2026-7270.
2. Obtain an official copy of the resolution to prove the reinstatement to third parties. You can download it directly from the BOE.
3. Communicate the reinstatement to your financial institution immediately and request the reactivation of accounts and services that may have been blocked or cancelled.
4. Notify notaries and registrars with whom you have pending or denied operations, providing the resolution as proof of the NIF reinstatement.
5. Inform relevant business partners, suppliers and clients to normalise contractual and operational relationships that may have been affected.
6. Review the status of pending procedures that were blocked during the revocation period (registry registrations, contracts, tenders) and reactivate them with the supporting documentation.

Official source

Disclaimer: This article is for informational purposes only and does not constitute legal advice. For specific decisions, please consult a qualified professional. Source: https://www.boe.es/diario_boe/txt.php?id=BOE-A-2026-7270