Updated: December 10, 2025

 

Portugal seems to be on the minds of many expats, and not just because of the excellent quality of life. Individuals from across the world have been looking to Portugal’s booming real estate market, including its rental property market.

If you are looking to jump at the opportunity to secure a nice return on your investment, you might be wondering how to turn that investment into real estate income. Investing in buy-to-let (BTL) properties is one way to do this. In this article, we’ll provide key considerations for getting a buy-to-let mortgage: How they work, who is eligible, and how to choose your options.

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Quick Summary

  • Portugal uses a residential mortgage instead of a classic "buy-to-let" mortgage product.
  • The borrower's debt-to-income ratio shouldn't exceed 30 to 35 percent of their monthly net income.
  • You must obtain a Portuguese NIF and open a Portuguese bank account for any property transaction.

What is a buy-to-let mortgage in Portugal?

estrela neighborhood in lisbonA buy-to-let mortgage is a way for an investor to borrow money for a property they want to rent out. Although Portugal doesn’t have a classic “buy-to-let” mortgage product, you can use standard residential mortgages (Crédito Habitação).

The Portuguese mortgage market is open to all citizens, residents, and non-residents. The mortgage process usually takes about four to eight weeks or longer for non-residents. You are expected to pay the money back in a maximum term of 25 to 40 years, depending on your residency and age.

To learn more about buy-to-let investments, visit our article: Buy-to-Let: An Overview.

If you are also unsure of which location is best for you, check out our guide: Best Locations in Portugal for Buy-to-Let.

How to choose the right mortgage for your investment?

For a first-time buyer, the words buy-to-let mortgage might be completely new. So, what does this term mean? Buy-to-let mortgages are specifically for people intending to buy property as an investment and to generate monthly rental income rather than for those planning to live on the property themselves. A residential mortgage will be more appropriate if you want to live on the property.

Buy-to-let Mortgage Requirements

a person signing documents for buy to let mortgage in portugalThe mortgage application process in Portugal may require the following documents:

  • Valid passport or a Citizen Card (Cartão de Cidadão)
  • Personal or business bank statements
  • Tax documents, like tax statements or IRS settlement notices
  • Proof of savings, like an official bank letter
  • Proof of income, like payslips, pension income, an employer reference letter, or a tenancy agreement
  • Responsibility map, which is an official document from the Bank of Portugal that details your outstanding debts or any other financial obligations with the bank or other institutions
  • Portuguese tax identification number (NIF)
  • Land registry certificate (Certidão de Teor)
  • Urban property record
  • Credit report from your home country (for non-residents)

A Portuguese mortgage lender may require additional documentation based on your case and their lending criteria.

How do buy-to-let mortgages work?

A mortgage is a loan used to purchase (or maintain) a property or piece of land. Unlike the UK, Portugal does not offer specific buy-to-let mortgages where the amount you can borrow is primarily based on anticipated rental income. Instead, investors typically apply for a standard mortgage, similar to those used for primary residences.

Buy-to-let mortgages enable investors and landlords to buy properties in Portugal and rent them out to other individuals. Here is a basic overview of how a buy-to-let mortgage works:

Put down your deposit

The deposit required for buy-to-let mortgages is generally higher than for a residential mortgage. The amount is typically around 25 percent of the property’s value, but can sometimes be as high as 40 percent, while for residential mortgages, this is lower. In Portugal, the minimum deposit for buy-to-let mortgages for non-residents is around 20 to 40 percent.

Interest-only mortgage payments

It is common for borrowers to take out interest-only mortgages for their property, as it means repaying only the interest on the mortgage each month. The main reason is the lower monthly payments. However, by the end of the mortgage term, you still owe the original amount you borrowed and will be charged interest on the full balance each month until you have paid it back.

Pay back the full amount

At the end of the mortgage term, you must pay back the initial amount borrowed. To do so, investors often sell the investment property to pay off this debt. In Portugal, interest-only mortgages are typically only available for new constructions and are limited to a two-year term.

If an interest-only mortgage is not for you, you can opt for a repayment mortgage instead. This type of mortgage has higher monthly repayments, but you will have fully repaid your debt by the end of the mortgage term.

While most mortgages in Portugal are principal plus interest loans, banks offer three main types:

  • Fixed-rate mortgages: The monthly payments stay the same for a set fixed period.
  • Variable-rate mortgages: The interest rates can increase or decrease based on a market reference rate.
  • Mixed-rate mortgages: These are currently one of the most popular mortgages in Portugal. They combine a fixed interest rate for an initial period, like five to ten years, followed by a variable rate for the remainder of the term.

Read our ultimate guide on getting a mortgage in Portugal

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How much will my buy-to-let mortgage cost?

The cost of your buy-to-let mortgage will depend on several factors, including:

The size of your deposit

The larger your deposit, the smaller the mortgage you will need to borrow. As mentioned, mortgage lenders in Portugal generally ask for a deposit of 30 percent from non-residents.

Interest rates

The amount you pay back each month will depend on the type of mortgage you take — fixed-rate, variable-rate, interest-only, or repayment.

Loan term

a document for residental mortgage in Portugal with keys

Most mortgages in Portugal are for 25 years, but it is possible to get terms of up to 30 years. The borrower’s age can affect the loan amount and terms, and your loan term will affect the size of your monthly payments.

Many Portuguese banks and mortgage providers have online mortgage calculators on their websites. Goldcrest also provides a mortgage calculator in Portugal. You can use it to get an idea of how much your buy-to-let mortgage will cost.

The mortgage calculator lets you estimate your monthly repayments based on the amount you borrow, the interest rate and fees of your mortgage deal, and your loan term. Ultimately, it can help you decide which buy-to-let mortgages you should consider.

Who is eligible for a buy-to-let mortgage?

Different lenders may have different eligibility requirements. The list below is a guideline of general requirements:

Your age

The minimum age in Portugal is 18, and the maximum age to complete your payments is 75. However, these limits may vary depending on the mortgage lender.

Your income

Some lenders may require a minimum income for a buy-to-let mortgage. The lender must also ensure you do not belong to non-repayment or late repayment risk groups. Your income may also influence the amount of financing you can receive and the loan’s interest rate.

Deposit

The minimum deposit required may vary depending on your lender, but it is typically 30 percent of the property value for non-residents in Portugal.

Borrowing history

Mortgage lenders assess your credit history to determine if you are a reliable borrower who will make their monthly repayments in full and on time. If you need a good credit score, you may want to improve it before applying for a buy-to-let mortgage.

How can I get the best deals on a buy-to-let mortgage?

Here are some helpful tips to ensure you get the best deal on your buy-to-let mortgage:

GC-ICON-86Compare a wider range of mortgage deals to find the cheapest rate

With various banks and lenders to choose from, you may be wondering where and how to find the best deals on a buy-to-let mortgage. Doing your research is the easiest way to compare deals and find the best interest rate. Visit lender websites to see what they offer, or speak to mortgage brokers who can compare deals for you. Having an experienced mortgage broker on your side can make buying property in Portugal as hassle-free as possible.

Keep an eye on your credit score

Maintaining a good credit score is generally a good habit. As your score can impact buy-to-let mortgage rates and the mortgage deal you receive, check your rating and take the necessary steps to improve it before applying for your mortgage.

GC-ICON-81Consider what type of mortgage is right for you

As we’ve discussed, different types of mortgages are available to borrowers. Research the pros and cons of each and decide what type of mortgage is best for your individual situation.

GC-ICON-30Be mindful of fees

Take note of any fees attached to your mortgage loan, such as an early repayment charge for leaving the deal before the end of your mortgage term. These fees, plus letting agent fees, can affect the overall cost, so make sure you know what they are.

What to consider before choosing a buy-to-let mortgage?

a mortgage calculator with a model of a houseDifferent factors can affect your finances when applying for a mortgage. Two important factors to consider are tax implications and the loan term.

There are tax implications for buy-to-let investors, such as income tax on income from rental properties and Capital Gains Tax. In Portugal, income tax on rental income (Category F) for non-residents is generally charged at a flat rate of 28 percent on the net income.

However, if you plan to sell your buy-to-let property, the Capital Gains Tax (CGT) rules have changed. Non-residents selling real estate in Portugal are now taxed on 50 percent of the capital gain, which is then added to their worldwide income and taxed at the progressive income tax rates (up to 48 percent).

It is essential to consider your loan term when planning your mortgage repayments, and for this, you can use your rental income from the property to help meet these repayments. However, it’s important to note that you may not always have tenants in your property, meaning you may not always have a rental income.

For periods when you don’t have rental income, known as ‘void periods,’ you will need a financial backup to continue to meet your monthly mortgage repayments.

How to compare buy-to-let mortgages?

While there are no restrictions on non-EU residents wanting to buy property in Portugal, your status as a Portuguese resident or non-resident will affect the amount you can borrow. You should compare the different fees, mortgage types, Loan-to-Value (LTV), and the best interest rates banks offer.

Compare mortgages from different banks

Since you will need a Portuguese bank account for different property transactions, it’s a good idea to compare banks. Portugal has over 15 banks that offer different mortgage loans to purchase a property. These banks include Banco Best, Banco CTT, Bankinter, BBVA, and Santander. Each bank has different eligibility criteria, and you will need to assess the suitability of the loan offered to your individual situation.

Remember that you may encounter some language barriers during this process, so it is helpful to have a tax advisor or another professional who speaks both Portuguese and English to help you and offer expert advice.

Another advantage of legally residing in Portugal is the ability to apply for citizenship after five years of legal residency. This is one of the fastest naturalization timelines in Europe. The country is known for its affordable property prices and thriving real estate market.

Although it is not possible to buy property in Portugal and get citizenship, the housing market remains a popular choice for foreigners who want to gain residency in the country.

Goldcrest: How We Can Help You 

Goldcrest is a buyer’s agent that is based in Lisbon. We provide expert, impartial advice on real estate investments and how to buy property in Portugal. From scouting out the perfect property through to property acquisition, we have you covered throughout the process.

If you are looking to purchase property in Portugal, don’t hesitate to get in touch. Our team of skilled experts is available to solve all your real estate doubts, helping you with the property search and offering insightful expertise and strategic advice.

Why choose Goldcrest?

  • Local knowledge: With offices located across Portugal, our presence nationwide allows us to assist you personally across the country.
  • Independent service: As an independent buying agent, we do not represent any development or project. Our service is entirely tailored toward each individual client, providing you with everything you need to secure the perfect property at the best possible price. As an impartial advisor on the market, we work solely on behalf of our client and provide a service tailored to your needs and requirements.
  • Streamlined process: Our real estate agents speak English and Portuguese, and our service is completely focused on providing you with a hassle-free buying experience, saving you time.
  • Experienced team: Our expert real estate team has a vast local knowledge of the Portuguese property market. We have cutting-edge technology and metasearch tools at your disposal to provide full market coverage, ensuring the best investment choices and negotiated prices.
  • Network of partners: We have a close network of partners, including lawyers, property management services, builders, architects, designers, and landscape gardeners, again saving you time and hassle by providing you with trusted experts in their field of work.

Frequently Asked Questions about Buy-to-Let Mortgage in Portugal

For non-residents, the minimum deposit required for Portuguese buy-to-let mortgages is typically 30 percent of the property’s purchase price. As part of the mortgage payment, you will need to pay the buy-to let mortgage deposit to secure financing for your property in Portugal.

It can be possible to get a buy-to-let mortgage without proof of income. However, this will depend on your individual circumstances and the lender. Some lenders do not have minimum income requirements and base the decision to lend on the rental income that the property will generate.

The cost of a buy-to-let property will depend on the type of property and its location. There are also other costs to bear in mind, such as the taxes and fees associated with purchasing a property. This can include property tax, stamp duty tax, legal fees, tax office fees, agent fees, and notary and registry fees.

By the end of the interest-only mortgage term, you will still owe the initial amount borrowed. You will continue to be charged interest on the full balance of the mortgage each month until you have paid it back in full. For this reason, it is essential to have a repayment plan for when the mortgage term comes to an end.

The number of buying to let in Portugal mortgages you can take out can vary from lender to lender. Each lender will have their own criteria and will typically assess applicants based on their individual cases. Some lenders may cap the total number of mortgaged properties, while others will look at the total number of properties you own.

There are a number of reasons why your buy-to-let mortgage may be declined. You may fail to meet the lender’s income and affordability criteria, you may not be able to put down a substantial enough deposit, the rental income from the property may not be enough to cover your monthly mortgage payments, you may have a poor credit history, your mortgage debt may be maxed out, or you may fall outside of the desired age bracket for the lender.

Buy-to-let mortgages are specifically designed for landlords intending to purchase a property and rent it out – and secure rental income from tenants. If you breach the conditions of your mortgage, such as living in the house yourself, your lender may be within its rights to ask you to repay the mortgage in full and/or repossess the property if you are unable to do so.

If you have a residential mortgage and wish to switch to a buy-to-let mortgage, you will need to get permission from your lender. If your lender declines this request to change your residential mortgage, it may be possible to get a remortgage with a new lender. However, such a change will result in repayment charges depending on your mortgage term, and the new mortgage may not be the best deal available.

This will really depend on the part of Portugal you buy the property and the rental property you opt for, as interest rates will vary across the country. Lisbon and Porto are good options to consider if you are looking to get a nice return on your investment, despite the fact that house prices are higher in these two cities.