Common Mistakes When Buying Real Estate in Portugal

Published on May 2, 2026 and written by Cyril Jarnias

Buying real estate in Portugal is an appealing project for many foreign investors, drawn by the country’s charm, pleasant climate, and economic opportunities. However, this process can be complex and fraught with pitfalls for those unfamiliar with the specifics of the Portuguese real estate market. In this article, we will explore the most common mistakes made by foreign buyers and give you the keys to avoid them, so you can make your investment with peace of mind.

1. Rushing in Without Knowing the Local Market: The Trap of Enthusiasm

The most common mistake is to get carried away by enthusiasm and buy on a whim, without taking the time to thoroughly study the Portuguese real estate market. Each region, each city has its own characteristics, its sought-after neighborhoods, and its less attractive areas. Prices can vary considerably from one place to another, and what may seem like a good deal at first glance can actually turn out to be an unwise investment.

To avoid this trap, it is crucial to take the time to familiarize yourself with the local market. This involves:

• Visiting several properties in different areas to get an idea of average prices
• Consulting local and national real estate statistics
• Talking with local real estate agents and residents to get first-hand information
• Analyzing market trends and future development projects in the region that interests you

By taking the time to understand the market well, you will be better equipped to identify good opportunities and negotiate effectively.

2. Neglecting Legal Aspects: A Major Risk Not to Be Underestimated

Another common mistake is underestimating the importance of legal aspects when buying a property in Portugal. The Portuguese legal system has its own particularities, and ignoring certain rules can have disastrous consequences.

Among the crucial points to check are:

• The legality of the property: ensuring the property complies with local regulations and has all necessary permits
• The absence of debts or encumbrances on the property: checking that there are no mortgages or unpaid taxes
• The compliance of the sales contract with Portuguese laws
• Property rights and any easements

To navigate these sometimes murky waters, it is highly recommended to hire a lawyer specializing in Portuguese real estate law. This professional can carry out all necessary checks and guide you throughout the purchase process.

Never skimp on this crucial step, even if it represents an additional cost. It is an investment that can save you a lot of trouble in the future.

3. Underestimating Ancillary Costs: The Hidden Bill of Real Estate Purchase

Many foreign buyers focus solely on the purchase price of the property, forgetting to account for the many ancillary costs that can significantly inflate the final bill. This mistake can lead to unpleasant surprises and unforeseen financial difficulties.

Among the costs not to be overlooked are:

• The Municipal Tax on Onerous Transfers of Real Estate (IMT), which can go up to 8% of the purchase price
• Notary fees, which generally represent about 1% of the property price
• Lawyer fees, which can vary between 1% and 2% of the purchase price
• Real estate agency fees, often paid by the seller but sometimes shared
• Property registration fees with the land registry
• Possible document translation costs

It is crucial to establish a detailed budget taking all these ancillary costs into account before embarking on the purchase. Plan for a safety margin of at least 10% of the purchase price to cover these fees and any unexpected expenses.

4. Ignoring Tax Specificities: An Oversight That Can Cost You

The Portuguese tax system has some particularities for property owners, especially non-residents. Ignoring these specifics can lead to costly mistakes and problems with the tax authorities.

Among the important points to know are:

• The Municipal Property Tax (IMI), an annual tax whose rate varies by municipality
• The taxation of rental income, which differs depending on whether you are a resident or non-resident
• The rules regarding capital gains when reselling the property
• Tax benefits related to certain types of real estate investments, such as renovating old properties

It is highly recommended to consult an accountant or tax advisor familiar with Portuguese real estate taxation. This professional can help you optimize your tax situation and avoid the most common pitfalls.

Do not hesitate to ask for tax simulations before finalizing your purchase, to have a clear view of your future obligations.

5. Neglecting the Property’s Condition: Unforeseen Renovations, a Potential Financial Black Hole

The charm of old Portuguese houses can sometimes make you forget the reality of their condition. Many buyers underestimate the extent of necessary work, ending up with renovations far more costly than expected.

To avoid this trap, it is essential to:

• Have a complete diagnostic of the property carried out by an independent professional
• Check the condition of electrical installations, plumbing, and roofing
• Inquire about any restrictions related to renovation, especially for listed properties or those in protected areas
• Obtain detailed quotes for planned work before finalizing the purchase

Do not hesitate to hire a local architect or project manager to accurately assess the scope and cost of necessary work. This will give you a realistic view of the overall budget for your project and help you avoid unpleasant surprises.

6. Poorly Evaluating the Location: The Key Criterion Often Overlooked

Location is a crucial factor in any real estate investment, but it is sometimes poorly evaluated by foreign buyers who are not familiar with the country. A property that seems ideally located during vacation can prove problematic for permanent residence or a rental investment.

Points to consider carefully:

• Accessibility and transportation: proximity to airports, train stations, major roads
• Nearby services: schools, hospitals, shops, restaurants
• Tourist potential for rental investments
• Future urban planning projects that could impact the neighborhood
• The seasonality of the area, especially in coastal regions

Take the time to visit the neighborhood at different times of the day and week. Talk to local residents to get a precise idea of daily life in the area.

For rental investments, carefully study occupancy rates and average rental income in the area before making a decision.

7. Skipping Insurance: An Indispensable Protection Often Forgotten

Finally, a common mistake is neglecting the importance of insurance when buying real estate in Portugal. Whether for a primary residence or a rental investment, good insurance coverage is essential to protect your investment.

Key points to consider:

• Home multi-risk insurance, mandatory for condominiums
• Liability insurance, particularly important for rental properties
• Renovation insurance for renovation projects
• Loss of rent insurance for rental investments

Compare offers from several insurers and do not hesitate to negotiate the terms of your contract. A good insurance contract can save you a lot of trouble in case of a problem.

In conclusion, buying real estate in Portugal can be an excellent investment opportunity, provided you avoid these common pitfalls. By taking the time to inform yourself well, surround yourself with competent professionals, and carefully plan your project, you will maximize your chances of making a successful and profitable investment.

Remember that each situation is unique and general advice must be adapted to your specific case. Do not hesitate to consult local experts to benefit from personalized support throughout your real estate purchase project in Portugal.