How to Contest a Will in Lisbon and What You’ll Need to Prove

To contest a will in Lisbon, you need two things: a legal ground the Portuguese Civil Code actually recognizes, and enough evidence to convince a judge that ground applies. Feeling that a will is unfair is not enough on its own. Portuguese courts start from the idea that a will signed before a notary is valid, so the burden sits squarely on the person challenging it.

That can sound discouraging, but Portugal also gives family members protections that many other countries don’t. Children and spouses have a guaranteed share of the estate called the legítima, and a will that cuts into it can be reduced even if it was drafted perfectly. Wills made by someone who had lost mental capacity, or who was pressured or deceived, can be annulled. Wills that skipped required formalities can be declared void.

The catch is time. Some of these claims expire just two years after you learn about the will and the problem with it. People lose strong cases every year simply because they waited.

This guide walks you through how contesting a will in Portugal works in practice. You’ll learn which law applies (a big question for expats), who has the right to bring a challenge, the main legal grounds, what you’ll need to prove for each one, the deadlines, the court process in Lisbon, and roughly what it costs. If you’re weighing whether to contest a will in Lisbon, this is the place to start.

Before You Contest a Will in Lisbon: Check Which Law Applies

The first question isn’t whether the will is fair. It’s which country’s law governs the estate. Lisbon has a large international population, and the answer changes everything about your options.

The EU Succession Regulation

Portugal applies EU Regulation No 650/2012 on succession, often called Brussels IV. Under it, the general rule is simple: the estate is governed by the law of the country where the person was habitually resident when they died. The courts of that country also usually have jurisdiction to hear disputes.

So if the deceased lived in Lisbon, Portuguese succession law will normally apply to their whole estate, including property they owned abroad.

The nationality exception

There’s one major exception. A person can choose in their will to have the law of their nationality apply instead. This is called a choice of law, and many British, American, and other foreign residents in Lisbon use it specifically to avoid Portuguese forced heirship.

If the will contains a valid choice of law, a few things follow:

• Portuguese forced heirship rules (the legítima) will generally not protect you
• The grounds for challenging the will may come from the foreign legal system
• You may need advice from lawyers in both countries

Why this matters for your claim

When you contest a will in Lisbon, the strongest argument for many children and spouses is that the will breached their forced share. If foreign law applies, that argument may disappear. On the other hand, claims based on lack of capacity, fraud, or forged signatures tend to exist in some form under most legal systems.

So step one is to read the will carefully, look for a clause choosing a governing law, and figure out where the deceased was habitually resident. A Portuguese inheritance lawyer can usually answer this quickly once they see the documents.

Who Can Contest a Will in Lisbon?

You can only contest a will in Lisbon if you have a real legal interest in the outcome. In plain terms, you need to be someone who would end up better off if the court struck down or reduced the will. A neighbor who thinks the will is unfair has no standing. A daughter who was left nothing does.

The people who most often bring a will contest in Lisbon are:

1. Forced heirs (herdeiros legitimários). Under Portuguese law these are the spouse, the children and other descendants, and, if there are no descendants, the parents and other ascendants. They have the strongest position because the law reserves part of the estate for them.
2. Legal heirs under intestacy. If the will were thrown out entirely, the estate would pass under the default rules of intestate succession. Anyone who would inherit under those rules, such as siblings or nephews when there’s no spouse or children, may have an interest.
3. Beneficiaries of an earlier will. If a new will replaced an older one that left you more, proving the new will is invalid can bring the old one back into force.
4. Beneficiaries named in the same will. Sometimes only one clause is the problem, such as a large gift to a caregiver. Other beneficiaries can attack just that clause.

A note for foreign heirs

You do not need to be Portuguese or live in Portugal to bring a claim. Plenty of challenges in Lisbon courts are filed by heirs living in the UK, Brazil, the US, or elsewhere. You’ll need a Portuguese tax number (NIF) and a lawyer registered with the Portuguese Bar Association, and you can sign a power of attorney so the lawyer can act without you being physically present for most steps.

Legal Grounds to Contest a Will in Lisbon (and What You’ll Need to Prove)

Portuguese law lists specific reasons a will can be attacked. Each one has its own test, and the evidence that wins one type of case is often useless in another. Here are the main grounds, with a straight answer on what you’d have to show.

1. Lack of testamentary capacity

This is the most common ground when a will is made late in life. Under the Portuguese Civil Code (Article 2199), a will is annullable if, at the moment it was made, the person could not understand what they were declaring or could not freely exercise their will, even if the condition was only temporary. Dementia, Alzheimer’s, a stroke, heavy sedation, or severe psychiatric illness can all qualify.

What you’ll need to prove: that the testator lacked capacity on the specific day the will was signed. A general decline over the years is not enough. Useful evidence includes:

• Medical records showing a diagnosis and its stage around the signing date
• Medication lists, especially strong sedatives or opioids
• Hospital or care home notes describing confusion or disorientation
• Testimony from doctors, nurses, carers, and people who saw the testator regularly
• A retrospective opinion from a psychiatrist or neurologist based on the records

One practical hurdle: most Portuguese wills are made before a notary, who records that the testator appeared to understand the act. Courts give that weight, but a notary isn’t a doctor and usually spends a short time with the person. Strong medical evidence can and does outweigh it.

2. Fraud, duress, or error

Article 2201 of the Civil Code allows a will to be annulled if it was the result of error, fraud (dolo), or coercion (coação). Portugal doesn’t use the English idea of “undue influence” as a separate doctrine, but pressure and manipulation by a relative or caregiver usually fit under fraud or duress.

What you’ll need to prove: that the testator’s decision was actually caused by the deception or pressure. Look for patterns such as:

• A sudden change to the will that favored someone who had recently gained control over the testator’s life
• The beneficiary isolating the person from family, screening calls, or controlling visits
• The beneficiary choosing the notary, booking the appointment, or being present when instructions were given
• False stories told to the testator, such as claims that a child had stolen money or no longer cared
• Threats, including threats to stop care or move the person out of their home

These cases are hard because the key events happen in private. Messages, emails, bank records, and witnesses who saw the dynamic are often what make the difference.

3. Defects in form

Portuguese wills must follow strict formalities. The two usual types are the public will, written by the notary in the notary’s own records, and the closed will, written by or for the testator and then approved by a notary. A will that skips required formalities can be declared null, and joint wills made by two people in one document are prohibited outright.

What you’ll need to prove: the specific formal defect. Ask for a certified copy of the will from the notary’s office and compare it against the legal requirements. Problems can include a missing signature, an irregular approval of a closed will, or a foreign will that doesn’t meet the formal rules of any law it could be judged by.

4. Forgery

If you believe the signature or the document itself was faked, the claim is that there is no valid will at all. This is rarer with public wills, because the notary drafts and holds the original, but it comes up with handwritten documents and closed wills.

What you’ll need to prove: that the document isn’t genuine. That usually means a forensic handwriting examination comparing the signature with known samples from the same period, plus anything showing the testator couldn’t have signed on that date.

5. Gifts to people the law bars from inheriting

Some beneficiaries are disqualified by the Civil Code. A common one in practice: a gift to the doctor or nurse who treated the testator, or the priest who gave spiritual assistance, is void if the will was made during the illness the testator died from. Gifts to the notary who drafted the will or to witnesses involved in it are also void, and there are restrictions on gifts to a guardian.

What you’ll need to prove: the relationship (for example, that the beneficiary was the treating nurse), the timing of the will relative to the illness, and that the testator died of that illness.

6. Breach of forced heirship

This ground doesn’t annul the will. Instead, it asks the court to cut back gifts that exceed the free portion of the estate so your reserved share is restored. It’s covered in detail in the next section because it’s the strongest card many families hold.

7. Unworthiness of a beneficiary

A beneficiary can lose their right to inherit if they are declared unworthy (indigno). This covers people convicted of killing or trying to kill the deceased or a close family member, people who used fraud or coercion to get the deceased to make or change a will, and people who hid, destroyed, or tampered with a will.

What you’ll need to prove: the qualifying conduct. For the criminal grounds, that typically means a final criminal conviction. For the will-tampering grounds, you need evidence of the act itself.

8. Unjustified disinheritance

Portuguese law lets a person disinherit a forced heir only for serious reasons listed in the Civil Code, such as being convicted of a serious crime against the testator, or unjustly refusing the testator support they were owed. If you were disinherited, you can challenge it.

What you’ll need to prove: that the stated reason is false or doesn’t meet the legal standard. The burden of proving the facts behind the disinheritance falls largely on those defending it, but you still need to bring the action in time.

Forced Heirship in Portugal: Your Strongest Ground

If Portuguese law applies to the estate, forced heirship is often the easiest route for spouses and children who want to contest a will in Lisbon. You don’t have to prove anyone was confused, pressured, or dishonest. You only have to show that the will (or lifetime gifts) left you less than the law guarantees.

How the legítima works

The Civil Code splits every estate into two parts. The legítima is the reserved portion that must go to forced heirs. The rest is the quota disponível, or free portion, which the person could leave to anyone they liked.

The size of the reserved portion depends on who survives:

A simple example

Say a father living in Lisbon dies with an estate worth €600,000 and two adult children. His will leaves everything to a new partner he never married. The children’s reserved share is two-thirds, or €400,000. The partner can keep only the free third, €200,000, and the children can ask the court to reduce the gift so they receive their €400,000.

Lifetime gifts count too

People sometimes try to get around forced heirship by giving property away before death. Portuguese law closes that door. The value used to calculate the legítima includes lifetime gifts, and gifts that eat into the reserved share can be reduced. Gifts in the will are cut first, then lifetime gifts starting with the most recent.

What you’ll need to prove: that you are a forced heir, the total value of the estate including relevant lifetime gifts, the debts of the estate, and that what you received falls short of your share. Valuations of property, bank statements, and land registry certificates do most of the work here.

One exception to watch for

Since a 2018 reform, spouses who marry under a strict separation of property regime can waive their status as each other’s forced heir in their prenuptial agreement. If the deceased’s spouse signed that kind of waiver, they can’t rely on the legítima.

How Long Do You Have to Contest a Will in Portugal?

Deadlines are where most families get caught out. Portuguese law uses caducidade, a strict time limit that wipes out the right itself once it passes. A judge can’t extend it because your case is sympathetic.

Why “when you learn” is riskier than it sounds

For annulment claims, the two years usually start once you know the will exists and know the facts behind your claim. You don’t get extra time because you hadn’t spoken to a lawyer or didn’t realize you had a case. Courts look at when you actually knew the facts.

This is not a theoretical risk. In one 2024 ruling by the Porto Court of Appeal, the defendant’s first line of defense was that the heirs had filed their annulment action well past the two-year limit, and a related counterclaim was thrown out as time-barred for exactly that reason.

Practical tips on timing

• Write down the date you first saw or heard about the will
• Keep any email or letter from the notary or other heirs that shows when you were told
• Don’t wait for the inventory or estate division to finish before acting
• Speak to a lawyer within weeks, not months, so there’s time to gather medical records and other evidence

If you’re thinking about whether to contest a will in Lisbon, treat the deadline as the first thing to confirm, before you spend money on anything else.

7 Steps to Contest a Will in Lisbon

Every case is different, but most challenges follow the same basic path. Here’s how a will contest in Lisbon usually unfolds, from finding the will to getting a judgment.

Step 1: Get a certified copy of the will

In Portugal, wills made before a notary are recorded centrally. After the death, an heir can ask the central registry for information on whether a will exists and which notary holds it, then request a certified copy from that notary. You’ll need the death certificate and proof of your relationship to the deceased. If the heirs have already signed a habilitação de herdeiros (the notarial deed confirming who the heirs are), get a copy of that too.

The EU’s e-Justice factsheet on succession in Portugal is a reliable official overview of how wills, notaries, and estate procedures work if you want background in English.

Step 2: Confirm the governing law and your deadline

Check for a choice-of-law clause and confirm where the deceased was habitually resident. Then work out which ground you’d rely on and which deadline applies. Do this before anything else, because it tells you how urgent everything is.

Step 3: Hire a Portuguese inheritance lawyer

In most will disputes, the amount at stake is high enough that you must be represented by a lawyer (advogado) registered with the Ordem dos Advogados. Choose one who handles succession litigation, not just property or immigration. If you live abroad, you’ll need a Portuguese tax number (NIF) and a power of attorney, which can often be signed at a Portuguese consulate or notarized and apostilled in your home country.

Step 4: Gather and preserve evidence

Medical records, bank statements, messages, and witness details can disappear quickly after a death. Your lawyer can request some records formally, but start collecting what you can right away. The evidence checklist in the next section covers what to look for.

Step 5: Try to negotiate first

A letter from your lawyer to the other beneficiaries sometimes produces a settlement, especially in forced heirship cases where the numbers are clear. Mediation is another option. A negotiated deal can be signed as part of the estate division, saving years of litigation.

Step 6: File the court action

If talks fail, your lawyer files a civil action (ação declarativa comum) in the Lisbon judicial district, naming the beneficiaries who would lose out as defendants. Higher-value claims go to the central civil courts, and lower-value ones to the local civil courts. If the estate includes property, your lawyer may register the action at the land registry so the property can’t be quietly sold to a third party while the case runs.

If an inventory proceeding (inventário) to divide the estate is already underway, the dispute over the will’s validity is usually sent to the ordinary courts, and the division may be paused until it’s resolved.

Step 7: Hearing, judgment, and appeal

The case moves through written pleadings, a preliminary hearing, expert evidence (such as a medical or handwriting report), and a final trial where witnesses testify. Either side can usually appeal to the Lisbon Court of Appeal (Tribunal da Relação de Lisboa). Once the judgment is final, the estate is divided according to the result: under an earlier will, under intestacy rules, or with gifts reduced to restore the legítima.

Evidence Checklist: What You’ll Need to Prove Your Case

The burden of proof sits with you. Portuguese judges decide on the evidence in front of them, and a notarized will starts with a strong presumption of validity. Before you contest a will in Lisbon, build your file around the ground you’re using.

Documents almost every case needs

• Death certificate
• Certified copy of the will and any earlier wills
• Habilitação de herdeiros, if already signed
• Proof of your relationship to the deceased (birth or marriage certificates, apostilled and translated if foreign)
• Evidence of when you first learned about the will

For capacity claims

• Full medical file from hospitals, clinics, and the family doctor (médico de família)
• Care home records, nursing notes, and medication charts
• Names of doctors, carers, and neighbors who saw the testator around the signing date
• Any cognitive test results, such as memory assessments

For fraud or duress claims

• Messages, emails, and letters between the testator and the beneficiary
• Bank statements showing unusual transfers or control of accounts
• Evidence of isolation, such as changed phone numbers or blocked visits
• Information on who booked and attended the notary appointment

For forced heirship claims

• Land registry certificates (certidão permanente) for every property
• Bank, investment, and pension statements at the date of death
• Records of lifetime gifts, including deeds of donation
• A list of the estate’s debts
• Independent valuations of real estate

A word on witnesses

Witness testimony carries real weight in Portuguese civil trials, but judges are cautious about family members with a stake in the result. Neutral witnesses, like a doctor, a pharmacist, a bank clerk, or a longtime neighbor, often count for more than a sibling repeating the same story. Your lawyer will help you choose who to call.

Costs, Timelines, and Choosing a Lawyer

It’s worth knowing what you’re signing up for before you contest a will in Lisbon. Litigation in Portugal isn’t usually as expensive as in the US or UK, but it is slow.

What it costs

There are three main cost buckets:

1. Court fees (taxa de justiça). These are set by the court costs regulations and rise with the value of the claim. Each side pays its own as the case moves along.
2. Lawyer’s fees. Portuguese lawyers typically charge hourly or a fixed fee per stage. A pure percentage-of-winnings arrangement is not allowed under Bar rules, though a success bonus on top of a base fee often is.
3. Expert and translation costs. Medical opinions, handwriting analysis, property valuations, and certified translations add up, especially when documents come from abroad.

The losing side generally bears the court costs and contributes to the winner’s expenses, but that contribution rarely covers the full lawyer’s bill. People with limited income may qualify for legal aid (apoio judiciário) through the Portuguese social security system.

How long it takes

A contested will case in Lisbon commonly takes one to three years at first instance, and an appeal can add a year or more. Expert reports and witnesses living abroad tend to slow things down. Forced heirship disputes that are mostly about numbers can move faster, particularly if they settle.

Choosing the right lawyer

Look for someone who:

• Regularly litigates inheritance disputes in Portugal, not just someone who drafts wills
• Speaks your language well enough to explain strategy clearly
• Can work with lawyers in your home country if foreign law or foreign assets are involved
• Gives you an honest early read on your evidence and your deadline

Ask for a written fee estimate covering each stage, including a possible appeal.

Alternatives to going to court

Not every dispute needs a full trial, and many people who set out to contest a will in Lisbon end up settling. Options include a negotiated settlement signed with the other heirs, mediation, or raising objections within the inventory proceeding (handled by a notary or the court) if the issue is how the estate is valued and divided rather than whether the will is valid. These routes are cheaper and faster, and they keep family relationships from being burned down completely.

Frequently Asked Questions

Can I contest a will in Lisbon if I live abroad?

Yes. Foreign heirs regularly contest a will in Lisbon. You’ll need a Portuguese tax number, a local lawyer, and a power of attorney. You may need to travel for the trial if you’re a key witness, though remote testimony is sometimes possible.

Can a will be contested just because it’s unfair?

No. Unfairness alone is not a legal ground. You need to fit your case into one of the recognized grounds, such as lack of capacity, fraud, duress, a formal defect, or a breach of your forced share.

What happens if the will is annulled?

The estate is distributed as if the invalid will (or clause) didn’t exist. That usually means an earlier valid will applies, or, if there isn’t one, the estate passes under the intestacy rules in the Civil Code.

Is a notarized will harder to challenge?

Yes, somewhat. The notary’s involvement creates a strong presumption that formalities were followed and that the testator seemed capable. It doesn’t make the will untouchable, especially when medical evidence points the other way.

Does forced heirship apply to British or American residents in Lisbon?

It depends on the will. If the deceased was habitually resident in Portugal and didn’t validly choose the law of their nationality, Portuguese forced heirship generally applies. If they made that choice, it usually doesn’t.

Can I still challenge the will after the estate has been divided?

Sometimes, as long as your deadline hasn’t run out. But it gets harder and more expensive to unwind transfers, especially if property has been sold. Acting early is always better.

Conclusion

To contest a will in Lisbon successfully, you need to know which law governs the estate, confirm you have standing, pick the right legal ground, and back it with solid evidence before a strict deadline runs out. Forced heirs often have the clearest path, since a breach of the legítima can be fixed without proving anyone did anything wrong, while claims based on lack of capacity, fraud, or duress depend on medical records, documents, and credible witnesses tied to the exact moment the will was signed. Most annulment and reduction claims must be brought within two years, so the smartest move is to get a certified copy of the will, gather your records, and speak to a Portuguese inheritance lawyer as early as possible, then decide with clear eyes whether to negotiate or go to court.