1. Mandatory Registration

To rent a property on Airbnb, Booking, or other platforms, you must:

• Obtain a registration number from the regional authority.
• Display this number on all listings.
• Without registration, the rental is considered illegal.

2. Tourist License (Depending on Region)

• Some regions require a tourist license (e.g., Barcelona, Balearic Islands).
• Municipalities may limit or deny new licenses.
• This license must be obtained before renting.

3. Property Compliance

Properties must comply with:

• Safety standards (fire extinguisher, smoke detector, habitation certificate).
• Essential equipment: water, electricity, ventilation or air conditioning.
• Clear display of registration number and house rules.

4. Declaration of Guests

Each stay must be reported to the local police or Guardia Civil, including:

• Full name, date of birth.
• Nationality and passport/ID number.
• Dates of stay.

5. Tourist Taxes

• Some regions (Catalonia, Balearic Islands) charge a tourist tax.
• The owner must collect it from the guest and remit it to authorities.
• Amount varies by property category and length of stay.

6. Taxation

• Rental income must be declared to the Spanish tax authorities.
• Non-residents are also taxed according to international agreements.
• It is recommended to consult a local tax expert.

7. Penalties for Non-Compliance

• Fines from €3,000 to over €60,000 depending on the region.
• Suspension of rental rights.
• Removal of listings from platforms by administrative decision.

8. Best Practices to Stay Compliant

• Check the specific rules for your autonomous region.
• Display your registration number on all listings.
• Keep a guest register up to date.
• Use a property management agency to handle formalities and taxes.