Many foreign nationals own a holiday home, second residence or investment property in Spain while living permanently in another country. What many do not realise is that, if you are not a tax resident in Spain but you own a property here, you are legally required to file IRNR – Non-Resident Income Tax every year.

This obligation applies whether you rent the property or not.

Failing to file IRNR is one of the most common and costly mistakes among non-resident property owners — and the consequences can escalate quickly.


1. Who Must File IRNR?

You must file IRNR if:

  • You are not a tax resident in Spain, and
  • You own a property located in Spain.

There are two types of IRNR depending on how the property is used:

A) Property Not Rented: “Imputed Income Tax”

Even if the property is empty or used only for holidays, Spanish law considers that it generates a theoretical rental income.
This is known as imputed income (renta imputada).

You must file one IRNR return per year for each property you own.

B) Property Rented: Tax on Actual Rental Income

If you rent out your property — long-term or short-term — you must file IRNR on the real rental income received.

This includes:

  • Long-term leases
  • Holiday rentals (Airbnb, Booking, etc.)
  • Partial rentals (a room within the property)

Filing obligations for rental income:

  • Quarterly IRNR declarations (Modelo 210)
  • One declaration for each quarter with rental activity
  • Optional annual summary (recommended)

EU/EEA residents may deduct allowable expenses.
Non-EU residents (including UK citizens after Brexit) generally cannot.


2. What Happens If You Do Not File IRNR?

The Spanish Tax Agency actively cross-checks property ownership and rental activity using:

  • Land Registry records
  • Utility consumption data
  • Tourist-rental platforms
  • Local councils
  • Spanish bank deposits

If missing IRNR filings are detected, enforcement begins.


Step 1 — Formal Requirement (Requerimiento)

A notification is sent to the taxpayer’s official address:

  • Home address abroad
  • Spanish property address
  • Address of a fiscal representative (if appointed)

The letter demands:

  • Missing tax returns
  • Documentation
  • Explanations of the situation

Step 2 — Only 10 Business Days to Respond

The taxpayer must respond within 10 working days.

If they do not respond — often because they live abroad, the letter arrives late, the mailbox is not checked, or no fiscal representative exists — the Tax Agency assumes non-compliance.


3. Provisional Assessment Becomes Final Debt

If there is no response:

  1. Hacienda issues a provisional assessment, including tax, penalties and interest.
  2. Shortly after, it becomes a final assessment, legally binding and immediately enforceable.

Appeal options become limited and complex once the debt is final.


4. Enforcement Measures: Bank Seizure and Charges on the Property

Once the debt is final, forced collection begins.

A) If you have a Spanish bank account

Funds will be seized automatically until the debt is settled.

B) If you do not have a Spanish bank account

Hacienda registers the debt as a legal charge against the property.

This means the tax debt must be paid before:

  • Selling the property
  • Donating it
  • Inheriting it
  • Changing or extending a mortgage

Notaries and Land Registries will block the transaction until the debt is cleared.


5. Why Compliance Is Essential

Failing to file IRNR — whether imputed or rental — leads to:

  • Penalties
  • Interest
  • Forced enforcement
  • Bank account seizure
  • A tax charge recorded against the property

For rental income, Hacienda may also request:

  • Rental contracts
  • Bank statements
  • Tourist-rental licence details
  • Proof of stays and payments

6. Recommendation: Use a Spanish Tax Adviser

Given that:

  • Letters sent abroad often arrive too late
  • Deadlines are short
  • Penalties are severe
  • Rental IRNR is quarterly and technical

…it is highly advisable to appoint a qualified Spanish gestor or tax adviser.

A professional can:

  • File your annual IRNR automatically
  • File quarterly rental income declarations
  • Receive official notifications on your behalf
  • Prevent penalties and enforcement
  • Keep your tax situation fully compliant

The annual professional cost is minimal compared to the consequences of failing to file.