Estate Planning for Canadians with Foreign Property: The Dual-Will Strategy

The Dual-Will Problem

Most Canadians assume their will — the one sitting with their Canadian estate lawyer — handles everything they own. For Canadian assets, it does. For foreign real estate, it doesn't. Each country has its own succession law, its own probate system, and its own rules about which wills are valid and how foreign wills are processed.

A Canadian will can technically be submitted to foreign legal authorities, but doing so requires several steps: the document must be translated into the local language by a certified translator, apostilled under the Hague Apostille Convention(which Canada joined in January 2024), and then submitted to the appropriate foreign court or notary for recognition. This process takes months. It costs significantly more in legal fees than simply having a local will prepared while you're alive and well. And it happens at the worst possible time — when your family is grieving and trying to manage your affairs from Canada.

The clean solution is a dual-will strategy: one Canadian will covering only your Canadian assets, and one local will in each country where you own property, covering only that country's assets. Clean partitioning. No overlap. Each instrument is immediately actionable in its own jurisdiction without any authentication or translation process.

If you own a condo in Puerto Vallarta, a villa in the Algarve, and a Canadian home, you need three coordinated estate instruments: a Canadian will, a Mexican testamento, and a Portuguese testamento. They must be drafted in coordination so they don't conflict.

Why Your Canadian Will Isn't Enough

The misconception that a Canadian will governs foreign property is widespread and dangerous. Here is exactly why it fails:

Jurisdictional Sovereignty

Every country asserts jurisdiction over real property within its borders. Mexico, Portugal, Spain, Italy, and France do not automatically recognize or apply Canadian estate law. A Mexican court will apply Mexican succession law to Mexican property unless a valid Mexican will says otherwise. Your Ontario will has no standing in a Mexican succession proceeding without significant authentication work.

The Authentication Burden

Even in countries that will accept a foreign will, the process is burdensome. The will must be officially translated by a certified legal translator. It must then be apostilled — a process that involves submitting the document to the correct provincial authority (which varies by province) and costs $30–$150 per document. The apostilled, translated will then goes to the foreign court or notary, who must determine whether it meets local validity requirements. This process can easily take three to six months and can cost thousands of dollars in translation and legal fees — all while your heirs are waiting to access the property and paying carrying costs.

Dying Intestate in Foreign Eyes

In countries where your Canadian will is not recognized without a lengthy authentication process, you are effectively dying intestate (without a valid will) with respect to your foreign assets. The country's intestacy laws then determine who inherits your property — which may not reflect your wishes. In Mexico, intestacy rules follow civil law and prioritize spouses and direct descendants in a fixed order. In the Dominican Republic, intestate succession can take years. The cost of a local will ($500–$2,000 USD depending on country) is trivially small compared to the financial and emotional cost of this outcome.

See our guide to buying property abroad as a Canadian for a full overview of legal and financial preparation across all destinations.

Forced Heirship: Countries Where Children Automatically Inherit

Canadian estate law gives you full testamentary freedom — you can leave your assets to anyone you choose (subject to dependent support obligations). This is the common law tradition. Many European and Latin American countries operate under civil law, which includes the doctrine of forced heirship: a legally protected minimum share of your estate that your children (and sometimes your spouse) are entitled to, regardless of what your will says.

If you own property in a forced heirship country, you cannot simply write your children out of your will. Even a perfectly valid will that leaves everything to your spouse or a charity can be challenged and overridden to the extent of the forced heirship portion. This is one of the most important estate planning considerations for Canadians buying in France, Portugal, Spain, and Italy.

The Brussels IV Nationality Election

If you are buying in an EU country, there is a planning tool worth knowing: the EU Succession Regulation (Brussels IV, 2015) allows EU residents to elect that the law of their nationality governs their succession. As a Canadian, you can include a clause in your will electing that Canadian succession law applies — which would eliminate forced heirship risk, since Canadian law has no such concept. However, this election applies to EU residents. If you are a Canadian who owns property in France but is not a French resident, the analysis is more nuanced and requires a French estate lawyer. Never assume Brussels IV eliminates your problem without professional confirmation for your specific situation.

CRA Deemed Disposition at Death

From a Canadian tax perspective, your death triggers a deemed disposition of all your capital property at fair market value on the date of death. This is found in section 70 of the Income Tax Act. It applies to your foreign real estate exactly as it applies to any other capital property — Canadian stocks, investment properties, cottage, etc. If your foreign property has appreciated, there will be a capital gain on your final Canadian return, payable from your estate before the property passes to heirs.

For more detail on how the capital gains calculation works on foreign property, including the ACB and currency conversion rules, see our dedicated guide.

Concrete Example

You purchased a Playa del Carmen condo for $350,000 CAD (including all closing costs — your adjusted cost base). At your death, the condo is worth $550,000 CAD. The $200,000 capital gain is reported on your terminal return. Under the post-2024 federal budget rules, the first $250,000 of capital gains in a year are included at 50% ($100,000 taxable), and gains above $250,000 are included at 66.67% (your $200,000 gain is under $250,000, so the full 50% inclusion applies — $100,000 added to income). At a 43% marginal tax rate, this produces approximately $43,000 in Canadian tax owed by your estate, even though the property physically stays in the family.

Spousal Rollover

If you leave the foreign property to a Canadian-resident spouse, the rollover provision in the Income Tax Act (subsection 70(6)) allows the deemed disposition to occur at your adjusted cost base rather than fair market value — deferring the capital gains tax until the surviving spouse sells or dies. This is the most common and powerful planning tool for married couples. The election must be made on the terminal return and requires careful coordination between your estate lawyer and accountant.

Double Tax Risk

If the destination country also imposes an inheritance or estate tax on the property transfer at death, there is potential for double taxation: Canadian capital gains tax in your terminal return AND local estate or inheritance tax in the destination country. Tax treaties between Canada and the destination country may provide a foreign tax credit mechanism, but the interaction is complex. Mexico has no federal inheritance tax — the capital gains exposure is primarily on the Canadian side. France has inheritance taxes with generous abatements for direct descendants. Portugal has a zero inheritance tax between direct family members. Each country requires specific analysis — consult a Canadian cross-border tax specialist who works with your destination country regularly. See the Canadian tax guide for foreign property for the full CRA reporting picture.

The Fideicomiso and Succession in Mexico

The Mexican fideicomiso (bank trust)is the vehicle through which Canadians own coastal and border-zone property in Mexico — the law prohibits foreigners from holding direct title within 50 km of the coast or 100 km of an international border. But one of the fideicomiso's most understated advantages is its succession mechanism.

When you establish a fideicomiso, the trust deed includes a provision for substitute beneficiaries — the people who will inherit the beneficial interest in the trust upon your death. You name them at the time the trust is established (or in a subsequent amendment). When you die, your named substitute beneficiaries present a death certificate and their identity documentation to the trustee bank. The beneficial interest transfers to them, and the trust continues. The property does not go through Mexican probate at all.

This is dramatically better than what happens with other foreign real estate in most countries. In the Dominican Republic, Costa Rica, or Portugal, foreign property always goes through local probate unless special structures are in place. In Mexico, the fideicomiso makes probate avoidance the default for properly structured coastal property.

What the Fideicomiso Does NOT Cover

The fideicomiso succession mechanism covers only the specific property held in that trust. It does not cover Mexican bank accounts, vehicles, furniture, jewelry, or other personal property you own in Mexico. It also does not cover any Mexican property you hold outside a fideicomiso (such as property in non-restricted zones held in your name). This is why having a Mexican testamento in addition to the fideicomiso beneficiary designation gives you complete coverage — the will handles everything the trust doesn't.

For those considering alternatives to the fideicomiso, see our analysis of corporate vs personal ownership of Mexican property — the SA de CV corporation structure has different succession implications.

How to Set Up a Dual-Will Strategy

Executing a proper dual-will strategy requires coordination between professionals in both countries. Here is the step-by-step approach:

1. Review and update your Canadian will first. Engage a Canadian estate lawyer with cross-border experience. Your Canadian will should clearly state that it covers only Canadian-situs assets and explicitly disclaims any property located outside Canada. If your Canadian will currently mentions your foreign property, it needs to be updated before you add a local will — otherwise the two instruments may conflict.
2. Engage a local professional in the destination country. In Mexico, this is a Notario Público — a government-licensed notary with legal training who handles property transactions, wills, and trust documents. In Portugal, Spain, Italy, and France, you need a notaire (or notaio / notario) and potentially a local estate lawyer. These professionals cannot be the same person — Canadian lawyers cannot practice foreign law, and vice versa.
3. Prepare your local will in the destination country. The local will should cover only assets in that country. Bring a copy of your Canadian will (with translation if required) so the local professional can confirm there is no overlap. The local will is drafted, signed before witnesses per local law, and registered in the relevant national registry (Mexico has a national testamentary registry maintained by the Notarios).
4. Name substitute beneficiaries in any trust structure. In Mexico, update the fideicomiso deed to name your desired substitute beneficiaries if not already done. This is a separate step from the will and should be confirmed with the trustee bank.
5. Store all documents accessibly and inform your heirs. Your executor and heirs need to know the location of: your Canadian will, each local will, your fideicomiso trust deed, all property titles, the name and contact information of your Canadian estate lawyer, the name and contact information of your local professional in each country, and any power of attorney documents.
6. Review annually or after major life changes. Marriage, divorce, birth of children, death of named beneficiaries, significant property value changes, or changes in tax law in either country can all require updates to your estate plan.

Power of Attorney for Foreign Property

A will only takes effect at death. What happens if you become incapacitated — through illness, accident, or cognitive decline — and cannot manage your foreign property yourself? This is where a power of attorney (POA) becomes essential.

A Canadian enduring power of attorney allows your designated attorney (person, not a lawyer) to manage your affairs if you lose capacity. But just as with your will, a Canadian POA is not directly usable in Mexico or most foreign countries without going through the apostille and translation process. Since Canada joined the Hague Convention in January 2024, this process is more straightforward — but it still takes time and adds friction in an already stressful situation.

The recommended approach is to have a local poder notarial (power of attorney) prepared in each country where you own property, alongside your local will. In Mexico, this is prepared by a Notario Público. The poder notarial authorizes a named individual to act on your behalf with respect to your Mexican assets — signing lease agreements, dealing with the trustee bank, paying property taxes (predial), managing maintenance contractors, and handling any legal matters relating to the property.

Choose your attorney-in-fact carefully — it should be someone you trust completely who is either present in the destination country or can travel there. Many Canadian buyers name a trusted local contact (a property manager, local lawyer, or a family member who spends significant time in the country) as their Mexican attorney-in-fact.

Probate Abroad: What Your Heirs Face Without Preparation

Probate is the legal process by which a deceased person's estate is administered, debts are paid, and assets are transferred to heirs. Every country has its own probate system with different procedures, timelines, and costs. Foreign probate — navigating another country's probate system from Canada — is one of the most expensive and emotionally draining experiences a family can face.

Mexico

For fideicomiso property with named beneficiaries, probate is avoided entirely — one of the fideicomiso's key advantages. For other Mexican assets without a local will, the process goes through the juicio sucesorio (succession proceeding) in Mexican civil court. This can take one to three years, requires a Mexican attorney, and involves court fees, attorney fees, and significant family inconvenience. With a Mexican testamento, the Notario who holds the registered will can manage much of the succession process, dramatically reducing time and cost.

Dominican Republic

The Dominican Republic uses a civil law system descended from the Napoleonic Code. Intestate succession in the DR can be particularly slow — cases taking two to three years are common when the deceased had no local will. The 3% inheritance tax on net estate value applies regardless of whether there is a will or not, but the process is far cleaner and faster when a valid Dominican will is in place. See why Canadians are increasingly buying in the Dominican Republic — and plan accordingly.

Portugal, Spain, France, and Italy

EU member states operate under the Brussels IV Succession Regulation framework, which created more harmonized cross-border succession rules within the EU. However, this framework primarily governs the law applicable to the succession — it does not eliminate the need to go through local probate procedures. Each country still has its own process. In Portugal, direct-family inheritance is now tax-free (since the 2004 IRS reform), but the property transfer still requires notarial acts. In France, the notaire system handles succession, and forced heirship rules mean your heirs may receive less flexibility than they expected. With local wills in place, these processes are far smoother.

Country-by-Country Estate Planning Considerations

Mexico

Mexico offers the most favorable succession environment for Canadian buyers: full testamentary freedom (no forced heirship), no federal inheritance tax, and the fideicomiso mechanism that eliminates probate for coastal property. The combination of a Mexican testamento and fideicomiso beneficiary designation gives you near-complete protection. Cost: $500–$1,500 USD for the testamento. The same Notario who handled your property closing can usually prepare your will in the same trip. If you own property in Puerto Vallarta, Playa del Carmen, or Cabo San Lucas, this is a one-time cost that should be done within 12 months of purchase.

Portugal

Portugal reformed its inheritance tax in 2004 — direct family members (spouse, children, grandchildren, parents) pay zero inheritance tax. Other heirs pay 10% stamp duty (Imposto do Selo). Forced heirship (legítima) reserves up to 50% of the estate for direct heirs. A Portuguese will with a Brussels IV nationality election can allow Canadian law to govern your succession and eliminate the forced heirship risk. The Canadian-Portugal tax treaty helps avoid double taxation on the Canadian capital gains side. Portugal's IFICI tax regime is attractive for Canadian buyers who intend to spend significant time there — but tax residency changes your estate situation significantly.

Costa Rica

Costa Rica has no forced heirship and no federal inheritance tax for direct family (1.25% for non-family heirs). Canadians own property directly — no fideicomiso or trust required. A Costa Rican will prepared before a local notary is the standard planning tool. Since January 2024, Canadian documents can be apostilled for use in Costa Rica, but having a local will avoids the authentication process entirely. Probate through the Registro Nacional can be slow without local documents.

Dominican Republic

The DR imposes a 3% inheritance tax on net estate value — modest compared to most jurisdictions. No forced heirship. Full testamentary freedom. A Dominican will is the essential planning document. CONFOTUR-exempt properties (which provide a 15-year property tax holiday for new developments) require attention in estate planning — confirm with a Dominican attorney how the exemption status is maintained through the succession process.

Common Estate Planning Mistakes for Foreign Property Owners

• Assuming your Canadian will covers everything.It doesn't. A Canadian will covers Canadian-situs assets. For foreign property, you need a local will in each country.
• Not naming fideicomiso beneficiaries at purchase.The substitute beneficiary clause in the fideicomiso is the most powerful succession tool you have in Mexico — and it costs nothing to add at the time the trust is established. Forgetting to do it (or forgetting to update it after a divorce or death of a named heir) defeats one of the fideicomiso's key advantages.
• Waiting until retirement to do estate planning.Estate planning should happen before the ink dries on your purchase agreement, not after you've owned the property for years. Every year without a local will is a year of unnecessary risk.
• Failing to account for CRA deemed disposition in your estate plan.Many Canadians don't realize their estate will owe Canadian capital gains tax on appreciated foreign property. This liability should be funded — through life insurance, liquid assets, or other means — so heirs aren't forced to sell the property to pay the tax bill.
• Letting wills go stale after life events. Marriage, divorce, birth of children, death of named beneficiaries — any of these can render parts of your will outdated or create unintended distributions. Review your estate plan after every significant life change.
• Not keeping heirs informed about where documents are.A perfectly structured estate plan is useless if your heirs don't know a Mexican will exists or can't find the fideicomiso trust deed. Create a simple letter of instruction telling your executor and heirs exactly what documents exist, where they are kept, and who the professionals are in each country.
• Using a Canadian lawyer who doesn't understand cross-border estates. Not all estate lawyers have cross-border expertise. Specifically ask whether your Canadian estate lawyer has experience coordinating wills across Canadian and foreign jurisdictions. If not, ask for a referral to someone who does.
• Overlooking currency risk in estate valuation. Your foreign property is valued in local currency for CRA purposes but converted to CAD using the exchange rate on the date of death. A significant movement in the CAD/MXN or CAD/EUR rate between purchase and death can meaningfully change your capital gain calculation. Maintain records of your original purchase price in both currencies.