Facing a Tax Inspection in Spain? Your 2026 Guide

Receiving a tax inspection notice from Spain’s tax authority (Agencia Tributaria, often called Hacienda) can feel intimidating, especially if you’re an expat still getting used to the local system. But with the right preparation and a calm approach, you can navigate the process smoothly. This guide walks you through practical steps for 2026, from understanding the type of inspection to protecting your rights.

Understand the Type of Inspection

Hacienda sends different notifications depending on the scope of the review. The most common for expats are:

• Verificación de datos (Data verification): A quick check of a specific point—like a mismatch between your declared income and what your employer reported. You usually just need to send a document via the online portal.
• Comprobación limitada (Limited review): A deeper look at one or two tax years, often triggered by large deductions or foreign income. You may be asked for bank statements, rental contracts, or proof of tax paid abroad.
• Inspección (Full audit): The most serious type. An inspector may visit your home or business, and the process can last months. This is rare for most expats unless you’re self-employed (autónomo) or have complex finances.

Check the notification header carefully. It tells you the type, the years under review, and the deadline to respond—usually 10 to 15 business days.

Gather Your Documents Immediately

Once you receive a notification, start collecting documents without delay. Even if you think the request is minor, missing a deadline can lead to a default assessment (which is almost always higher). Key documents to prepare:

• Your Spanish tax returns (Modelo 100 for income tax, Modelo 720 for foreign assets if applicable).
• Proof of income: payslips, pension statements, or invoices if you’re self-employed.
• Bank statements from Spanish and foreign accounts for the years under review.
• Rental contracts and receipts if you earn rental income.
• Any tax certificates from your home country (e.g., IRS transcripts, UK HMRC certificates) to support double-taxation claims.

Organize everything in chronological order. Hacienda often requests a specific set of documents—don’t send extra unless it helps clarify your position.

Respond Within the Deadline

Spanish tax authorities are strict about timelines. If you need more time, you can request an extension, but only once and usually for no more than 10 additional days. To request it, log into the Agencia Tributaria website (sede.agenciatributaria.gob.es) using your digital certificate or Cl@ve PIN, and submit a formal request explaining why you need more time.

Always respond in writing, even if you think the inspection is a mistake. Verbal explanations are rarely accepted. Use the official forms provided in the notification, or draft a letter in Spanish (or with a certified translation) addressing each point raised.

Know Your Rights and When to Get Help

You have rights during a tax inspection. The inspector must identify themselves, explain the purpose, and allow you to have a representative present. You can also record meetings (with prior notice). If you feel the inspector is overreaching or the request is unreasonable, you can file a formal complaint (queja) with Hacienda’s internal review body.

For most expats, hiring a gestor or tax advisor is wise, especially for limited reviews or full audits. Look for someone with experience in international taxation and a good track record with Hacienda. Fees vary, but expect €200–€500 for a simple case and more for complex audits. A good advisor can often reduce penalties by negotiating a settlement.

Handle Penalties and Payment Plans

If Hacienda finds an error, you’ll receive a proposed assessment (liquidación provisional) with penalties. Penalties can range from 50% to 150% of the tax due, depending on whether the error was considered intentional. However, you can often reduce penalties by:

• Paying voluntarily before the final notice—this can cut penalties by 25%.
• Accepting the assessment without appeal—another 25% reduction.
• Requesting a payment plan (aplazamiento) if you cannot pay the full amount at once. You’ll need to show financial hardship, and interest will apply.

If you disagree with the assessment, you have one month to file an appeal (recurso de reposición) with Hacienda, or you can go directly to the economic-administrative court (TEAR). A tax advisor can help you decide which route is best.

Prevent Future Inspections

After surviving an inspection, take steps to reduce the risk of another one. Key habits for 2026:

• File all required forms on time, including Modelo 720 for foreign assets over €50,000.
• Keep clear records of all income and deductions for at least four years (the general statute of limitations).
• If you’re self-employed, use a recognized accounting software and declare all invoices.
• Avoid large cash transactions—Hacienda monitors deposits over €3,000.

Living in Spain as an expat can be rewarding, but tax compliance is non-negotiable. By staying organized and acting quickly if you’re inspected, you can turn a stressful experience into a manageable one.

Frequently Asked Questions

I’m a non-resident property owner. Can I still be inspected?

Yes. Non-residents are subject to inspection for property taxes (IBI), rental income, and capital gains tax if you sell. Hacienda often cross-references property registries with tax filings. If you own a home in Spain but don’t file a non-resident tax return, you may receive a notification.

What happens if I ignore the inspection notice?

Ignoring it leads to a default assessment, which is usually higher than what you would owe if you cooperated. Hacienda can also impose fines for non-cooperation (up to €600 per missed deadline) and eventually seize assets or bank accounts. Always respond, even if you need to request an extension.

Can I represent myself, or do I need a lawyer?

You can represent yourself for simple data verifications. For limited reviews or full audits, a gestor or tax advisor is strongly recommended. A lawyer (abogado) is usually only necessary if the case goes to court. The cost of professional help is often less than the penalties you might face alone.

How long does a tax inspection take in Spain?

For a data verification, expect 2–4 weeks. A limited review can take 3–6 months, and a full audit may last 12–18 months. The clock starts from the day you receive the notification. Hacienda must complete the inspection within 18 months for most cases, or the process is considered void.