Buy-to-Let Mortgage in Madrid: What UK Investors Should Know

Investors from the United Kingdom who want to buy a flat or house in Madrid to let it out usually assume the mortgage process will look different from a residential purchase. In practice, Spanish banks still start from the same foundations: a Spanish tax number (NIE), a Spanish bank account, proof of income from the United Kingdom, and a study of the buyer's overall financial profile. What changes is how each lender weighs the rental income the property may generate, and that varies from bank to bank.

At Colibrí Finances we compare more than 20 Spanish banks to find those most open to buy-to-let applications from abroad, prepare the file, translate the documents the bank asks for and follow the process through to the notary. The study is free and without obligation, and we only charge a fee if you go on to sign, always agreed with you in writing beforehand.

Madrid province is centred on the Spanish capital, an inland city with no coastline, drawing buyers focused on urban life, business connections or investment rather than beach lifestyle. Many buyers are professionals relocating for work, families using international schools, or investors targeting rental demand.

Madrid-Barajas is one of Spain's main international airports, offering extensive global connections. Property in the city centre is mostly apartments, while outer areas of the province offer houses and chalets, and demand stays fairly constant through the year rather than following a summer season.

Before you commit to the numbers of a mortgage, it helps to know the place: dated figures on population, asking prices, transport links and climate in Madrid (province), each with its source. Together they give a grounded sense of Madrid (province) to weigh against your budget.

On 1 January 2025 the INE recorded 7,113,886 residents across the entire province of Madrid, a figure that includes every municipality, not just the capital that shares its name. These official population data set the context for the local market figures below. In the province of Madrid, 1,181,319 residents hold a foreign nationality, about 17 of every 100 people registered there. That is a significant but not dominant share, and it varies considerably from one town to another within the province.

Only 10,938 British nationals appear in INE's register for the whole province of Madrid on 1 January 2025, a small number of compatriots. The padrón only counts people living there most of the year, so second-home owners in the province are not included. Here are the largest foreign communities registered in Madrid (province) on 1 January 2025, drawn from the nationality figures INE publishes for each municipality.

For nationalities the census groups together rather than listing them individually, such as Germans, Italians, Dutch, Belgians or Scandinavians, we turn to the detailed INE register for Madrid province. Unlike the table above, this count dates from 1 January 2022, the most recent detailed edition.

Across the province of Madrid, 24,729 homes currently listed carry a median price of €3,830/m² and a median ticket of €360,000 in our price bank. Both figures sit above the €3,210/m² median we see across the 127 towns we track nationwide. Prices vary considerably from one listing to the next, though the bulk of the market, its middle half, falls between €2,750 and €5,910 per square metre.

On the median asking price in Madrid (province) of €360,000, transfer tax at the regional rate of 6 % comes to about €21,600, plus roughly €4,300 for notary, registry and gestoría fees. The total of about €25,900 must come from the buyer's own savings, not the mortgage. The figures reflect asking prices in listings live on 2026-10-05, rather than prices actually paid. Final amounts are agreed through negotiation and vary with the state, location and orientation of each property.

This table sets out population, foreign residents per 100 people and median price per square metre for the towns we track in Madrid (province), highlighting how much local markets can vary.

INE's experimental statistic, based on listings from the main holiday-rental platforms, found 13,431 holiday-let homes in Madrid (province) in 05/2026 (51,387 bed places), about 2 per 1,000 residents. That is a low presence, consistent with a mainly residential market.

Madrid has a single commercial airport, Aeropuerto Adolfo Suárez Madrid-Barajas (MAD); depending on where exactly in the province your property is located, an airport in a neighbouring province may actually sit closer to your door. The figures that follow reflect conditions in or around Madrid, the provincial capital; elsewhere in the province, particularly inland, at altitude or on other islands, the climate can vary considerably. Winters are cold by Spanish standards: January averages 6.3 °C, with an overnight minimum around 2.7 °C, while August reaches a mean of 25.1 °C and a daily maximum near 31.3 °C. Heating and insulation become a real cost item rather than an afterthought. With about 421 mm of rain a year on roughly 59 days, rain is neither scarce nor abundant here. These figures are the official climate normals (1981-2010) from AEMET, Spain's state weather agency, at its Madrid, Retiro station, about 2 km away; conditions at the exact property can differ slightly, especially inland or at altitude.

78,375 home sales were registered in the province of Madrid in the twelve months to 06/2026, according to INE. A market of this size usually means more comparable sales and a wider choice of homes for buyers. Bear in mind that these numbers reflect the province of Madrid overall; they shift a great deal between towns and between individual properties. Let us know what you have in mind so we can look at your case.

The transfer tax on a resale home is set by each Spanish region. In Madrid the general rate is 6 %, and on top of it come notary, land registry and gestoría (roughly one more percent). On a new build you pay 10 % VAT plus stamp duty instead of the transfer tax. This money is not lent by the bank.

When you apply for a mortgage to buy a rental property in Madrid, the bank studies the same core elements as for a home you would live in yourself: your income, your existing debts and the property itself. Some lenders will also look at the potential rental income the flat or house could generate, while others prefer to base the whole assessment on your personal income from the United Kingdom alone. This is one of the reasons the study we carry out compares more than 20 banks rather than relying on a single one.

Because criteria differ so much, we never quote a fixed share of the price a bank will finance, nor a rental yield you could expect. What we can say is that Spanish banks usually ask non-residents for a larger deposit than they would ask a resident buyer, and that the exact share always depends on the bank, your country of residence and your financial profile.

Because you are applying from the United Kingdom, the bank will ask for the same kind of paperwork it would request from any UK-based buyer, translated into Spanish and sometimes apostilled. In practice this usually means your most recent P60 and payslips, your last filed Self Assessment tax return, bank statements from the last few months, evidence of any existing loans or mortgage commitments, and a valid passport or UK national identity document.

The exact list changes from bank to bank, and if the property is meant for rental use, some lenders may also ask for a projection of the income it could generate or for details of how you intend to manage the letting. We gather and translate this file for you and present it to the banks most likely to consider a buy-to-let application from the United Kingdom.

The price you agree with the seller is only part of the budget. If the home in Madrid is a resale, you will pay the regional transfer tax (ITP), which is set by each region; if it is a new build, you will pay 10% VAT plus stamp duty instead. On top of that come the notary, the land registry, the administrative agency that handles the paperwork and the bank's valuation of the property, which the lender requires before releasing any mortgage.

If you ever sell the property as a non-resident, the buyer is required to withhold 3% of the price on account of your Spanish tax, which is later reconciled against the tax actually owed. Because you will be paying from the United Kingdom and receiving rent in euros, it is also worth planning for exchange-rate movements and the cost of converting sterling into euros each time you transfer money.

Owning a rental home in Madrid does not end at the notary. As a non-resident owner you must file an annual Modelo 210 return, declaring rental income or, if the property is empty for part of the year, an imputed income on the periods it was not let. A local tax adviser can confirm exactly how this should be reported, and how it interacts with what you declare to HMRC under the double taxation agreement between Spain and the United Kingdom.

None of this replaces sound legal advice on licensing a property for tourist or long-term rental, which depends on local rules in Madrid. What we do at Colibrí Finances is the mortgage side: comparing banks, preparing your file and following it through to completion, so that the financing is in place before you turn to the letting side of the investment.

Spain is a relatively short flight away from most UK airports, making regular visits to a Spanish property straightforward for owners based in Britain. Many British buyers are drawn to Spain for its climate, coastal lifestyle and established expatriate communities. One practical point to bear in mind is that Spanish inheritance law differs from UK rules, so it is worth taking specific advice on how it may affect the property and one's estate. Currency movements between sterling and the euro can also affect the overall cost of purchase and ongoing expenses.

Spain and the United Kingdom have a double taxation agreement in place, and a local tax adviser should confirm how rental income or gains from Spanish property must be declared and reported to HMRC.

As the United Kingdom is no longer an EU member state, British citizens may stay in Spain for up to 90 days in any 180-day period without a visa, and must apply for a visa or residence permit for longer stays.

Since the United Kingdom uses the pound sterling (GBP) rather than the euro, buyers should factor in exchange-rate movements and currency conversion costs when paying for a property or transferring funds to Spain.