How Spain taxes rental income from property you kept abroad

The mistake almost everyone makes — and why it bites

People moving to Spain often assume: “I pay tax on that property in Country X, so Spain won’t touch it.” That’s half-right. Spain doesn’t tax the same bit twice if there’s a treaty. But it still wants the income on your Spanish return. If you’re a Spanish tax resident you must declare your worldwide income, including rents from a house or flat left in the UK, US, Canada, Australia or elsewhere.

Why this bites: the Spanish return is where your marginal rate is applied. So even if you paid 15–25% in the country where the property sits, you may have extra tax to pay in Spain if your Spanish marginal rate is higher. The way Spain calculates the allowable deductions, amortisation and the exchange-rate conversion can also differ from what you claimed abroad — and that affects your final bill.

Two practical consequences most people only discover the hard way:

• You must keep the original foreign tax receipts and a certificate of tax paid in the foreign country; AEAT will ask for them if you claim a credit.
• If the foreign assets (including that rental property) exceed €50,000 in total, you probably need to file Modelo 720 — and late or incorrect filings carry fines that can dwarf the tax owed.

How Spain actually taxes that foreign rental income (step by step)

Start with your status. If you are a Spanish tax resident (you usually are if you live in Spain more than 183 days a year, or if your main economic interests are here), the rent you collect abroad sits in your IRPF return under "rendimientos del capital inmobiliario" (rental income). File it on Modelo 100 in the annual IRPF campaign (usually April–June for the previous tax year; the exact window changes every year).

What you’ll need to do:

• Convert the gross receipts and expenses into euros using the official exchange rate used for tax purposes (AEAT publishes guidance each year).
• Calculate net rental income: gross rent minus allowable expenses. Typical deductible items are mortgage interest, local property taxes, insurance, maintenance and repairs, letting agency fees and utility costs you paid. You can also amortise the building (not the land) — the tax code allows a notional amortisation (commonly a small percentage) that reduces taxable income.
• Apply any reductions that might be available (for example, longstanding rules allow a 60% reduction on net income from leasing a dwelling for use as housing in some cases — check eligibility for foreign-located properties with AEAT or your gestor).
• Include the resulting net figure in your general taxable base; it is taxed at your IRPF marginal rate. Regional surtaxes apply, so your final rate depends on the autonomous community where you are resident.

Two concrete forms you should know:

• Modelo 100 — the annual IRPF return where you declare worldwide income if you are a Spanish tax resident.
• Modelo 720 — the annual declaration of overseas assets if the total value per asset class (bank accounts, securities, property) exceeds €50,000. Missing or late Modelo 720 filings trigger stiff penalties.

If you paid tax on the same rental income in the country where the property sits, you usually claim a foreign tax credit on your Modelo 100. The credit generally equals the tax paid abroad but cannot exceed the Spanish tax attributable to that income. That means you must keep the foreign tax certificate (or equivalent proof of payment).

Your status	Form to file	How the income is taxed	Key action
Spanish tax resident	Modelo 100 (+ possibly Modelo 720)	Worldwide rental income included in IRPF general base; taxed at marginal rate; foreign tax credit available	Declare net rent on Modelo 100; keep foreign tax receipts; check Modelo 720 threshold
Non-resident (you keep home country residency)	Depends where property is—often local tax forms; Spanish Modelo 210 only if the property is in Spain	Not subject to Spanish IRPF on foreign rents; taxed in country where property is located	Confirm residency status; don’t assume you’re non-resident just because you keep a home abroad

The paperwork nobody warns you about until it’s too late

Three painful realities people find out only after they move:

1. Modelo 720 isn’t optional for many expats. If the total of your foreign assets in a category (say, the market value of that rental property plus foreign bank balances) exceeds €50,000 you must file Modelo 720. The penalties for late or incorrect filing are draconian: fixed fines per omitted data point, plus additional percentages. This isn’t a small late-filing fine you can shrug off.

2. You’ll be asked for official translations and foreign tax certificates. AEAT will ask for documentary proof if you claim a foreign tax credit: official certificates of tax paid, translated into Spanish and often legalised or apostilled. Tenants’ receipts alone aren’t enough. Plan time and a small budget for translations and possible consular/legal fees.

3. Exchange-rate mechanics create taxable noise. If you collect rent in a different currency, Spain wants the euro equivalent using the official rates. When you later sell the property, any currency gains (or losses) between the time you received the rent and when you repatriated money can affect your tax position — especially for capital gains calculations. Keep bank records showing when money moved and the rates used.

Checklist: documents to have ready when you prepare your Spanish return

• Annual statement of gross rents and tenant receipts (from your overseas bank or letting agent).
• Receipts for allowable expenses: insurance, repairs, local property taxes, management fees, utilities you paid, mortgage interest (with lender statement).
• Purchase deed showing acquisition price and land/building split (necessary for amortisation calculation).
• Certificate from the foreign tax authority showing tax paid on the rental in that country (translated and apostilled if required).
• Bank statements showing receipt and repatriation of rents (for exchange-rate proof).
• Documentation supporting any special rules you claim (for example, lease agreement proving it’s a dwelling used as housing if you’re seeking the 60% reduction).

Double taxation treaties, credits and the item nobody tells you — your other home country obligations

Good news: Spain has double taxation treaties (DTTs) with most countries expats come from. Those treaties typically allow a credit in Spain for tax you paid abroad, so you won’t be taxed twice on the same rental income. The technical detail you must watch is how the credit is computed: Spain usually limits the credit to the amount of Spanish tax attributable to that income (so if Spanish tax is higher, you pay the difference).

What nobody often warns you about: if you’re a citizen of the US (and a minority of readers will be), you still have reporting and possible tax liabilities in the US even when you live in Spain. The US taxes citizens on worldwide income — you’ll use the foreign tax credit or the foreign earned income exclusion where relevant, but rental income is generally not excludable as earned income. That means you’ll have two separate compliance jobs: Spanish IRPF and your home-country filing. Same for some other countries with outsize reporting rules.

Practical steps for the credit:

• Obtain an official certificate of tax paid from the foreign tax authority (or your local tax return with proof of payment).
• Convert the foreign tax paid to euros using the same official exchange rates as for your income.
• Claim the credit on Modelo 100 with the supporting documents ready — AEAT may ask to see them.

If the foreign jurisdiction doesn’t issue neat certificates, or if the amounts were withheld by the tenant rather than paid as a formal tax, get a formal statement from the local tax office or a notarised explanation from your foreign accountant. AEAT accepts that if it’s credible — but it often takes a couple of rounds of requests.

If you’re thinking of avoiding the Spanish return by arguing you’re still tax resident at home — don’t gamble. Residency is tested on days, centre of economic interests, family ties and more. If you’re living in Spain for most of the year or carrying out financial activity here, AEAT treats you as a resident and expects worldwide declaration. Get written residency advice if your situation is borderline.

Once you’ve declared it: what changes, and what’s left to do

Declare the foreign rental income correctly and you clean two big risks off your plate: AEAT audits that find undeclared foreign income, and the massive fines around Modelo 720. Once you’ve done this you’ve also unlocked the practical benefit of knowing exactly how much net cash you keep each month after Spanish tax — which helps with budgeting, healthcare contributions, and deciding whether to keep or sell the property.

What still remains after the declaration:

• Annual compliance: Modelo 100 every year, keep the same records, and re-check the Modelo 720 threshold each year.
• Wealth tax exposure: the market value of the overseas property must usually be included in Spain’s wealth tax base (Impuesto sobre el Patrimonio) where applicable — regional allowances differ.
• Estate planning: Spanish inheritance law and taxation can affect how that foreign property is treated on death. Update wills and consider cross-border estate planning; see a specialist.

My recommendation: for the first year after you become resident, hire a Spanish gestor who knows foreign-property cases. It’s not expensive compared with the risk of a 720 penalty or a misapplied foreign tax credit. A good gestor will draft your Modelo 100, advise on the amortisation base, and tell you exactly which documents to keep.

Useful official reference: Agencia Tributaria’s website explains how to declare foreign income and offers conversion tables and form guidance — check the AEAT site for the current year’s rules and deadlines: agenciatributaria.es.

Related guides on HolaRetire you’ll want next: how non-resident tax on Spanish property works if you keep a place here (/en/finance-tax/non-resident-tax-spain-property), how to set up a tax calendar for Spanish residency (/en/finance-tax/spain-residency-tax-calendar) and why using a gestor is worth it (/en/finance-tax/gestor-tax-advisor-spain). If you’re worried about estate rules, read our guide to wills and estate planning for expats in Spain (/en/finance-tax/wills-estate-planning-spain-expats).

FAQ

If I pay tax on the rent in the country where the property is, do I still have to report it to Spain?

Yes. As a Spanish tax resident you must include worldwide rental income on your Modelo 100. You can normally claim a foreign tax credit for the tax already paid abroad, but you still must report the income and keep the official proof of foreign tax paid.

Do I need to file Modelo 720 for one rental property abroad?

Maybe. Modelo 720 is for reporting overseas assets grouped into three categories. If the declared value of that property (or of your total assets in a category) exceeds €50,000 at year end you must file Modelo 720. The rules are strict and penalties for late or incorrect filings can be severe.

Can I deduct mortgage interest on a foreign buy-to-let on my Spanish return?

Yes, mortgage interest and many other expenses related to producing rental income are typically deductible when you calculate net rental income for IRPF. Keep lender statements and match them to what you declare; Spanish auditors will ask for originals or certified copies.

Does the 60% reduction on rental income apply to property owned abroad?

There is a widely used 60% reduction on net rental income from leasing a dwelling used as housing, but whether it applies to foreign-located property can depend on details of the lease and the law in force that year. Ask your gestor to confirm for your particular case before assuming it applies.

I’m a US/UK/Canadian/Australian citizen — will I have to file back home as well?

Possibly. Citizens of the US must still file US returns reporting worldwide income; other countries have different rules. Even if you can claim foreign tax credits at home, you still need to file the Spanish return if you are resident here. Cross-border compliance is often the trickiest part — get advice from a specialist who understands both countries’ rules.