What is SIBA and what is it for?

SIBA (Sistema de Informação de Boletins de Alojamento) is the official SEF/AIMA platform for the mandatory registration of guests at accommodation establishments in Portugal. All short-term rental owners are legally required to report guest data through this system.

What is the deadline to report guests to SIBA?

The legal deadline is 3 business days (72 hours) after the guest's check-in. With Sincro, data is submitted automatically as soon as the guest fills in the form, always guaranteeing the deadline is met.

What are the fines for not reporting to SIBA?

Failure to report to SIBA can result in fines ranging from €250 to €3,740 per infraction. Each guest not reported, or reported after the deadline, can constitute a separate infraction.

Do I need a SIBA portal account to use Sincro?

Yes, you need access credentials for the SIBA portal (siba.sef.pt). If you don't have one yet, you must register your establishment on the portal. Afterwards, simply enter those credentials into Sincro to activate automatic submission.

Does Sincro work with both Portuguese and foreign guests?

Reporting to SIBA is only mandatory for foreign guests. Sincro automatically identifies nationality and handles each case correctly.

How do I know the data was submitted correctly?

Sincro shows the status of every submission on the dashboard: scheduled or sent. Once SIBA processes it successfully, you'll receive a notification/email from SEF confirming the report was received. We keep a complete history of every submission.

Official SIBA/AIMA Integration

Fully Automated SIBA SEF Reporting

Comply with Portugal's guest reporting law to SEF with no effort. Sincro automatically submits guest reports to the SIBA system.

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What is the SIBA System?

SIBA (Sistema de Informação de Boletins de Alojamento) is the official SEF/AIMA platform for the mandatory registration of foreign guests at accommodation establishments in Portugal.

All short-term rental owners are legally required to report their guests' data through this system, or face significant fines.

Learn more in our complete guide to the SIBA Portal.

Legal Obligations

Decree-Law No. 128/2014 - Legal Regime for Short-Term Rentals

Report the data of all foreign guests to SEF
Maximum deadline of 72 hours (3 business days) after check-in
Complete data: name, nationality, residence, dates
Keep records for 3 years
Fines between €250 and €3,740 for non-compliance

How Sincro Automates SIBA

Forget manual work and tight deadlines. Sincro takes care of everything for you.

Automatic Submission

Guest data is submitted to SIBA automatically as soon as they complete your form.

100% Legally Compliant

Meet all your legal reporting obligations to SEF with no worries or risk of fines.

Within the Legal Deadline

We guarantee data is reported within the legally required 72 hours, automatically.

Data Validation

Smart system that validates all data before submission, preventing rejections and errors.

Manual vs Sincro

See the difference between reporting manually and using Sincro

Aspect	Manual Process	With Sincro
Time to report	15-30 min per guest	Automatic (0 min)
Risk of errors	High	Practically zero
Legal deadline	Easy to miss	Always met
Cost per submission	Time = money	Included in your plan
Submission history	Manual/Portal	Complete dashboard

How the Integration Works

Set it up once and let Sincro do the work for you

Configure Your SIBA Credentials

Enter your SIBA portal access credentials in the "Submission" tab of your form in Sincro. A one-time, secure setup.

Guest Completes the Form

The guest receives the form link and fills in their details before arrival.

Data Validated Automatically

The system validates all required fields and formats before submission, preventing rejections.

Automatic Submission to SIBA

Data is sent automatically to SEF within the legal 72-hour deadline, with no intervention from you.

Frequently Asked Questions About SIBA

Get your questions about guest reporting to SEF answered

Have more questions?

See all frequently asked questions

Comply With the Law, Effortlessly

Join hundreds of short-term rental owners who have already automated their reporting to SEF with Sincro.

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