AEAT notices via DEHU: deadlines and doubts for Spain's self-employed

AEAT notices via DEHU: what they are and when they count as served

Dozens of notices from Spain's tax agency (AEAT) have reached companies and self-employed workers right in the middle of quarter-end closing preparations. The message is always the same: there is an administrative notice waiting in the DEHU (Dirección Electrónica Habilitada Única, the single enabled electronic address). The question doing the rounds in offices and accountancy firms is what these mailings contain and, above all, how long you can hold out before the deadlines start running.

The short answer: not opening it does not make it disappear. Ten days after being posted in the DEHU without being peine, the notice is deemed served. From that point on, the procedure runs its course. Anyone who thought that ignoring the notice bought them unlimited time is getting the strategy wrong.

What is the DEHU and since when has it replaced paper?

The DEHU is the single electronic mailbox for communications from the public administration. The rules governing it go back a long way: some trace them to 2016, when electronic notification stopped being an option and became the ordinary channel for companies and professionals. The BOE (Spain's official state gazette) still exists as a public noticeboard, but only for cases where the addressee is unknown or the notice could not be served, not as a voluntary shortcut.

What is being debated is not whether the system is legal, but how it is applied. Law 39/2015, in its article 44, regulates publication that replaces notification when the latter cannot be served. But for a company or a self-employed worker with an active DEHU, the route is a different one: the notice is deposited, the clock starts counting and, if nobody opens it, it is deemed rejected.

Can you run the deadline down to delay the effects?

Yes, and it is a widespread practice. Holding out until the very last day so that the deadlines begin after the quarter-end closing is a conscious decision that several professionals apply. It is not illegal, but it is not free either: the margin runs out and any miscalculation leaves the procedure already under way with no chance to react.

The alternative of never collecting the notice has a short shelf life. The system is designed so that the notification is understood to have taken effect even if the recipient does not interact with it. The difference between running the clock down and blocking it is the difference between managing your calendar and losing control of it.

Who is receiving these notices and why now?

The pattern described by those receiving them is striking: simultaneous mailings to very different companies, with no obvious common profile. This fuels the hypothesis of a mass process rather than a selective review. The coincidence with the quarter-end closing adds pressure: anyone handling the accounts knows that a requirement at this time of the quarter forces a reshuffling of priorities.

Some argue that the volume responds to a large-scale data matching exercise. Against this weighs the argument that the AEAT does not need to justify the reason for each administrative notice in order to deposit it. What matters is the content, and until it is peine, nobody knows.

The debate over the BOE and notification to individuals

Part of the analysis holds that for private individuals the procedure offers stronger safeguards and that publication in the BOE cannot replace proper notification except in specific, limited cases. Another line of thought points out that the mandatory electronic regime for companies and professionals blurs that distinction: if you have a DEHU, the DEHU is the channel.

The exact point where the analysis gets stuck is the boundary between a private individual without business activity and a self-employed worker. The former retains a more classic notification regime; the latter already operates in the electronic environment. The confusion between the two profiles explains much of the alarm.

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What nobody disputes is the timetable: ten days, a mailbox and a procedure that waits for no one. Everything else —what these mailings contain, whether they are requirements, checks or mere communications— remains a mystery until someone opens them.