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SIBA WebService Troubleshooting Guide for Alojamento Local Hosts

If you manage an Alojamento Local (AL) in Portugal and are trying to automate guest reporting to SIBA, connection and activation issues can sometimes happen during setup.

This guide explains the most common SIBA WebService problems, how to validate your credentials, and what to check before enabling automation.


What Is the SIBA WebService?

The SIBA (Sistema de Informação de Boletins de Alojamento) WebService allows accommodation providers to automate the submission of foreign guest information to the Portuguese authorities.

Instead of manually entering guest details into the SIBA portal, compatible software can submit the accommodation bulletin automatically.

This helps hosts:

  • Save time

  • Reduce manual errors

  • Avoid missed submissions

  • Keep guest reporting organised


Before You Start

You should have:

  • Full property address

  • Phone number

  • Guest capacity (max guests)

  • Number of bedrooms

  • Property type (Apartment / House / Room)

  • Your NIF number

  • Municipality where the property is registered

This can all be found by searching on RNAL. All Alojamento Locals in Portugal are listed there.

Remember:
All foreign guests — including EU citizens — must be communicated to SIBA within the legal deadline.


Common SIBA WebService Problems

1. Invalid Activation Key

Symptoms

  • “Invalid key”

  • Authentication failed

  • Unable to activate automation

Possible Causes

  • Incorrect copy/paste

  • Extra spaces

  • Wrong establishment number

  • Old or deactivated key

How to Fix It

  • Copy the key directly from SIBA

  • Remove spaces before or after the key

  • Confirm the establishment number is correct

  • Try logging into SIBA manually first

If manual login also fails, the issue is usually on the SIBA side rather than your software.

2. SIBA Portal Login Works but Automation Fails

Possible Causes

  • WebService not enabled

  • Incorrect credentials linked

  • Temporary SIBA server issue

Recommended Checks

  • Confirm the property NIF matches the SIBA account

  • Verify the establishment identifier

  • Wait a few minutes and retry

  • Test with a new guest submission

Sometimes the SIBA servers experience temporary slowdowns or maintenance periods.


3. Guests Are Not Appearing in SIBA

Possible Causes

  • Guest form incomplete

  • Missing nationality/passport data

  • Submission date mismatch

  • Internet timeout during submission

What to Check

  • Ensure all mandatory guest fields are completed

  • Confirm arrival and departure dates

  • Check that the nationality is not empty

  • Verify the guest submission appears in your software dashboard

Many failed submissions are caused by incomplete guest check-in forms.

4. Wrong Property Connected

This can happen if:

  • Multiple properties exist under the same account

  • The wrong public check-in link was shared

  • A copied setup from another unit was reused


Solution

Each property should use its own unique guest check-in link and SIBA configuration.

Always verify:

  • Property name

  • AL registration

  • Establishment number

  • Public guest link

before testing automation.

Quick SIBA Validation Checklist

Before enabling automatic submissions, check the following:

SIBA Setup Checklist

Account & Access

  • I can log into the SIBA portal manually

  • My activation key is correct

  • My establishment number matches SIBA

  • My property NIF is correct

Guest Data

  • Guest nationality is filled in

  • Arrival and departure dates are correct

  • Passport or ID details are completed

  • Guest count matches the reservation

Automation

  • I tested one guest submission first

  • I received a confirmation email from SIBA

  • The submission appears inside the SIBA portal

  • The correct property is connected

Best Practice for AL Hosts

The easiest way to reduce SIBA errors is to collect guest information before arrival using a dedicated digital check-in form.

This helps:

  • Reduce manual entry

  • Improve guest compliance

  • Organise records

  • Automate submissions

  • Reduce late reporting risk

Many hosts now include the guest check-in link directly in Airbnb Scheduled Messages or Booking.com messaging automation.

Final Tip

If your SIBA connection suddenly stops working after previously working correctly, first test:

  1. Manual SIBA login

  2. One new guest submission

  3. Confirmation email delivery

In many cases, the issue is temporary and resolves without needing a full reconfiguration.

Automate Your SIBA Submissions with EazyAL

EazyAL helps Portuguese AL hosts:

  • Collect guest details digitally

  • Organise check-ins

  • Automate SIBA submissions

  • Track tourist tax obligations

  • Simplify compliance workflows

Start with a free guest check-in link and upgrade to automatic SIBA submissions when ready.

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EazyAL helps Alojamento Local hosts automate SIBA, tourist tax and compliance workflows in Portugal.

About the author


Daniel is a software engineer and Alojamento Local host based in Madeira, Portugal. He is the founder of EazyAL, a tool designed to simplify SIBA, INE, and tax compliance for short-term rental hosts. His work combines real-world hosting experience with technology to help hosts stay compliant and reduce manual work.

Author Daniel de Oliveira

About the author


Daniel is a software engineer and Alojamento Local host based in Madeira, Portugal. He is the founder of EazyAL, a tool designed to simplify SIBA, INE, and tax compliance for short-term rental hosts. His work combines real-world hosting experience with technology to help hosts stay compliant and reduce manual work.