Buying a home: the costs beyond the asking price

The number you were quoted is not the number you will pay

Every purchase has a cost stack, and the price is only its first line. The layers below are the ones that appear on almost every Portuguese property transaction, in roughly the order they arrive.

The two taxes worth understanding by name are IMT, which sits in the Código do Imposto Municipal sobre as Transmissões Onerosas de Imóveis, and stamp duty, in the Código do Imposto do Selo. IMT is where the arithmetic gets complicated: the bands differ depending on whether the property will be your permanent residence, and they are revised with each annual state budget.

We deliberately do not print the IMT bands on this page. They change, and a table of last year's brackets is worse than no table at all, because it looks authoritative while being wrong. The Autoridade Tributária publishes the current tables and runs its own simulator; that is the number to use, and it takes ten minutes. What is stable enough to state is the shape: a progressive scale for a home you will live in, and a flat 6% for other urban property.

The fourth tax nobody mentions at the viewing

Two taxes apply after you own the property, and a third appears if it is valuable enough.

IMI is the annual municipal property tax, levied on the property's rateable value rather than on what you paid. The rate is set by each municipality inside a national band of 0.3% to 0.45% under CIMI article 112, with a reduction available where the property is your permanent home and you have dependants. Our IMI calculator does that arithmetic with the current rates and the family reduction, and links to the tax authority's rate lookup for the municipality you are buying in.

AIMI is an additional tax aimed at higher-value holdings, which is worth checking against the current thresholds if the property is expensive. Condominium fees are a monthly cost in any building with shared areas, and they are set by the assembly of owners rather than by you.

The important structural point is the one people miss: IMI is charged on the rateable value the tax authority assigns, not on the price you agreed. Two identical flats with different rateable values pay different tax, and a renovation that changes a property's characteristics can change its rateable value.

The due diligence sequence

This is the part where the order matters, because each document either clears the next step or stops the purchase before you have paid a deposit.

1. Get the land registry certificate (certidão permanente do registo predial). It names the owner, describes the property, and lists mortgages, easements and other charges. If the person selling is not the person registered as owner, that question needs answering before anything else moves.

2. Get the property tax record (caderneta predial). This is the tax authority's description of the property — its rateable value, its area, its use, and the year of registration. Check that what it describes matches what you are standing in. A garage or an extension that is not on the caderneta is a problem with a paper trail.

3. Confirm the use licence (licença de utilização). A property must be licensed for its use — housing, commerce, services — and the licence is issued by the municipality. Buying a property whose actual use does not match its licence creates trouble that surfaces later, sometimes years later.

4. Check for planning and building regularity. Alterations carried out without municipal approval can be regularised, or can be a liability you are buying. Ask the seller for evidence that any works were licensed, and ask the municipality whether there are pending proceedings.

5. Look at the energy certificate. It is mandatory, and it tells you something practical about the building rather than something legal: how well it holds heat, which in Portugal is often the difference between a modest winter bill and an expensive one.

6. Check the condominium position. Ask the building's management for a statement of any outstanding charges on the unit and for the minutes of recent assemblies. Unpaid condominium debt can follow the property, and planned major works are a cost you are about to inherit.

7. Only then sign the promissory contract (CPCV). This is the document that fixes the price, the completion date and the deposit. Understand the deposit's terms: under the Civil Code the sinal works in both directions, so a buyer who walks away generally loses it, and a seller who does loses more.

Who does what, and why you want your own representation

The notary, or the lawyer authenticating the deed, is not your adviser. The notary's role is to ensure the transaction is properly executed and the formalities are observed; the seller's agent is paid by the seller. Neither is there to tell you that the price is wrong or the licence is missing.

That is why independent legal representation is worth its fee on a purchase of any size. A Portuguese lawyer or solicitador acting for you will run the checks above, correspond with the other side, and — most valuably — tell you to stop when something does not add up. Ask what the fee covers, and make sure the registry and tax checks are inside it rather than billed separately.

How the money moves

Property purchases in Portugal are subject to the same anti-money-laundering framework that governs bank accounts, and the money trail is documented from the start.

You will need a Portuguese tax number and a Portuguese bank account before completion. Funds coming from abroad must be traceable to a source you can evidence — the sale of a previous home, savings, a gift, an inheritance — because the bank, the notary and the tax authority each have obligations here. Prepare that file once and reuse it.

If your money is not in euros, the exchange rate is a cost as real as any tax, and it moves. Nobody can tell you what the rate will do, but anyone can tell you what their spread is: get the margin quoted explicitly rather than accepting a headline rate.

The deed, and what happens after

Completion happens either at a notary or through an authenticated private document, and the transfer is then registered at the land registry. The registration is what makes the ownership effective against third parties, so keep the certificate you receive afterwards.

Then the ongoing obligations begin: IMI each year, condominium fees, insurance, and maintenance. Budget them from the first month rather than being surprised by them in the second year — the IMI calculator will give you the annual figure for a given rateable value and municipality, and the instalment rules under CIMI article 120 determine whether you pay once, twice or three times.

If you are buying to sell later

Capital gains on Portuguese property are taxed, and how depends on your residence status and on what you do with the proceeds. A resident who reinvests the proceeds of a permanent home into another permanent home in Portugal or the EU may be able to exclude the gain under conditions; a non-resident is generally taxed at a flat rate. Treaties then determine where the gain is taxable overall, which is a question for an adviser who can read the specific treaty, not a blog.

One misconception worth clearing up, because it drives a lot of buying decisions that no longer make sense: real estate purchases stopped qualifying for Portugal's golden visa in 2023. If someone is selling you a property on the strength of a residence permit attached to it, ask them to name the provision. The honest answer is that buying property is now a lifestyle and financial decision in Portugal, not an immigration one — the visa routes are the D7, the D8 and the rest, and they are assessed on income rather than on square metres.