Electronic tax notifications in Spain are used to formally deliver information requests, tax assessments and other administrative decisions. For companies and foreign clients with Spanish obligations, checking these channels is an essential part of routine administration.
Waiting for a letter or an email alert is not enough. An electronic notification can have legal effects without being read.
Who must receive electronic notifications?
Mandatory groups include legal entities, entities without legal personality and certain regulated professionals when dealing with public authorities in their professional capacity. Representatives of people required to use electronic channels and other legally specified groups may also be covered.
For AEAT, additional categories include taxpayers registered in REDEME or the Large Companies Register. Being self-employed does not, by itself, establish a universal obligation across every Spanish authority: the applicable rules must be checked.
Where to check AEAT and other official notifications
AEAT notifications can be accessed through its electronic office or the Dirección Electrónica Habilitada Única (DEHú), the shared notification service for participating public authorities.
Other bodies have their own channels. If you deal with ATIB, check the relevant services in its electronic office too. Do not assume that one portal covers every matter.
Use official websites and an accepted identification method. Ensure that your digital certificate and any representative’s authority remain valid.
The ten-calendar-day rule explained
The key distinction is between opening a notification and leaving it unopened:
- Accessing its content makes the notification effective at that point.
- Where electronic receipt is mandatory or has been expressly chosen, leaving it unopened for ten calendar days after it becomes available results in deemed rejection, with the corresponding legal effects.
Ten days is not a universal response deadline. The time allowed to respond depends on the notice and the applicable calculation rules. Opening it earlier can trigger its effects earlier.
Email alerts are a reminder, not the legal notice
Activate available alerts, but treat them as support. For AEAT, an alert is not the notification itself, and failure to receive it does not prevent the notification from being valid. DEHú allows you to add and verify contact email addresses.
Check official channels regularly and retain the notification and access record.
What happens if you miss a notification?
You may lose time to supply documents, make representations, appeal or pay within the relevant period. Depending on the case, interest, surcharges, penalties or recovery action may follow.
Leaving a notice unopened does not automatically trigger a fine or a bank attachment. Consequences arise from the underlying decision and procedure. If you discover an expired notice, review its content promptly and establish what options remain.
Planning for travel and time abroad
Agree who checks each channel, how frequently and who handles the response. Foreign residents and owners who spend long periods away benefit from a clear monitoring arrangement.
An advisor can access notifications with the required authority. For AEAT, express authorisation to receive notifications is needed; permission to file returns is not necessarily enough.
AEAT also offers up to 30 courtesy days per calendar year for covered notifications, requested at least seven calendar days in advance. These days do not suspend notifications already made available or create a general holiday from all public authorities.
Electronic notification checklist
- Check your obligations with each authority.
- Keep identification and representative authorisations current.
- Activate and verify available alerts.
- Arrange frequent reviews and closer monitoring during active proceedings.
- Download each notice and record the access or deemed-rejection date.
- Calculate response, payment and appeal deadlines separately.
- Arrange cover while away and check eligibility for courtesy days.
Frequently asked questions
Can a company opt out?
A company cannot remove a legal obligation simply by asking. The relevant authority’s rules must be checked.
Does travelling abroad stop the deadline?
No. Travel or living abroad does not itself suspend notification deadlines. Arrange access and monitoring in advance.
What if no email alert arrives?
An absent alert does not, by itself, invalidate the notification. Check the official service directly.
Can my advisor monitor notifications?
Yes, with the required representation. Agree which authorities, notifications and follow-up tasks the engagement covers.
Notification monitoring with Montis Mas & Co.
At Montis Mas & Co., we periodically review clients’ electronic notifications within the agreed service. We help identify the required action and organise responses, particularly during travel or extended absences.
Contact our team to discuss notification monitoring.
This article provides general information and does not replace individual legal or tax advice.
