Quebec Inheritance Tax vs Ontario: 3 Key Differences That Affect Estates Between $250,000 and $2,000,000 in 2026

Why Quebec and Ontario Estates Are Fundamentally Different Legal Systems

Ontario operates under common law — its estate rules derive from English legal tradition, codified in the Succession Law Reform Act (SLRA) and the Estates Act. Quebec operates under civil law, rooted in the French legal tradition and codified in the Civil Code of Québec (CCQ). These are not minor variations on the same system. They are two entirely separate legal frameworks that happen to coexist within the same country.

For estates between $250,000 and $2,000,000 — the range that covers the vast majority of Canadian families — three differences consistently produce the largest financial impact: probate costs and will recognition, RRSP/RRIF beneficiary designation rules, and spousal entitlements under intestacy. Each difference can shift tens of thousands of dollars between beneficiaries. For a broader overview of how Canadian estates are taxed at death, see our 2026 Canadian inheritance tax guide.

Difference #1: Probate Costs and Will Recognition — The $29,250 Gap

Ontario: Estate Administration Tax With No Cap

Ontario's estate administration tax (commonly called probate fees) is calculated as a straight percentage of the estate's total value. The rate is $5 per $1,000 on the first $50,000, and $15 per $1,000 on everything above $50,000. There is no cap. Every estate that holds assets in the deceased's name alone must obtain a Certificate of Appointment of Estate Trustee — and pay this tax — before financial institutions, land registries, and other third parties will release assets. For a detailed breakdown of how this tax works, see our Ontario estate administration tax guide.

Quebec: Notarial Wills Bypass the Court Entirely

Quebec offers a mechanism that Ontario simply does not have: the notarial will. A notarial will is executed before a Quebec notary (a legal professional with specialized training in non-contentious matters) and one witness. The original is filed in the notary's vault and registered with the Registre des dispositions testamentaires. Because the notary verified the testator's identity, capacity, and intent at the time of execution, the will is self-proving — no court verification (homologation) is required.

If the deceased had a holograph will (entirely handwritten and signed, no witnesses) or a will made before witnesses (the English-form will common in the rest of Canada), Quebec requires homologation — a court process to verify the will's validity. Homologation typically costs $1,000 to $3,000 in legal fees plus court filing costs. This is still dramatically cheaper than Ontario's percentage-based tax on large estates.

Side-by-Side Probate Cost Comparison

At the $2,000,000 level, the Ontario estate pays $29,250 more than the Quebec estate with a notarial will — and that gap only grows as estate values increase, because Ontario's tax has no cap. For strategies to reduce Ontario probate exposure, see our guide to avoiding Ontario probate fees.

Difference #2: RRSP/RRIF Beneficiary Designations — The Rule Quebec Ignores

This is the difference that catches the most families off guard, particularly those who have moved between provinces or hold accounts at national financial institutions.

Ontario: Designations Made at the Financial Institution Are Valid

In Ontario, when you open an RRSP, RRIF, or TFSA at a bank or investment firm and name a beneficiary on the application form, that designation is legally binding under the Succession Law Reform Act. On your death, the account passes directly to the named beneficiary outside the estate. It does not go through probate, it is not subject to estate administration tax, and the estate trustee has no authority over it.

This is one of the most powerful estate planning tools available in Ontario. A $500,000 RRSP with a named beneficiary saves the estate $7,250 in probate fees alone — because that $500,000 never enters the estate.

Quebec: Only Wills and Insurance Contracts Create Valid Designations

Under the Civil Code of Québec, beneficiary designations on RRSPs, RRIFs, and TFSAs made directly with a financial institution have no legal effect. The only valid ways to designate a beneficiary for these accounts in Quebec are:

• Through a will (notarial, holograph, or witnessed)
• Through a life insurance contract (if the registered plan is held within an insurance wrapper)

If a Quebec resident fills out the beneficiary designation form at their bank naming their spouse as RRSP beneficiary, and then dies — the designation is ignored. The RRSP proceeds fall into the estate and are distributed according to the will or, if there is no will, Quebec's intestacy rules under the Civil Code.

Impact at Each Estate Level

The fix for Quebec residents is straightforward but often overlooked: include RRSP, RRIF, and TFSA beneficiary designations in your will. A Quebec notarial will that specifically designates beneficiaries for each registered account achieves the same result as Ontario's form-based designation — but the designation must be in the will, not on a bank form.

Difference #3: Spousal Entitlements and Intestacy — Patrimony vs. Preferential Share

Ontario: The $350,000 Preferential Share

When an Ontario resident dies intestate (without a will), the surviving spouse receives a preferential share of $350,000 in 2026, plus a proportional share of the remainder depending on how many children survive. This is governed by the SLRA. The spouse also has a right of possession over the matrimonial home under the Family Law Act, but this is a right to live there — not automatic ownership.

Quebec: Family Patrimony Division First, Then Succession

Quebec's system is a two-step process that has no equivalent in Ontario. Before succession rules even apply, the family patrimony (patrimoine familial) is divided under articles 414 to 426 of the Civil Code. The family patrimony includes the family residences, furniture, vehicles, and accumulated pension benefits during the marriage — regardless of whose name they are in.

The surviving spouse is entitled to 50% of the net value of the family patrimony. This division happens first, before any succession rules apply. After the patrimony division, the remainder of the estate is distributed according to the will or Quebec's intestacy rules — where the surviving spouse receives one-third of the succession if there are children (the children share the remaining two-thirds equally).

Worked Example: $800,000 Estate — Married Spouse + Two Children, Intestate

The outcome is striking: the Ontario spouse receives about $98,000 more than the Quebec spouse, but each Ontario child receives about $55,000 less. Quebec's patrimony-first system allocates more to children; Ontario's preferential share system concentrates more in the spouse's hands. Neither is inherently better — but the difference is large enough to change family financial planning decisions. For an overview of how the full Quebec succession rules work, see our detailed guide.

Complete Side-by-Side: $250K, $800K, and $2M Estates

Here is the full comparison across three estate levels, assuming a married couple with two children, intestate death, and a notarial will in Quebec:

*Quebec RRSP passes outside estate only if beneficiary is designated in a will or insurance contract, not on a bank form.

At the $250,000 level in Ontario, notice that each child receives $0 — because the spouse's preferential share ($350,000) exceeds the entire net estate, consuming everything. In Quebec, the patrimony division followed by the one-third succession share still leaves each child with $31,667. This reversal — Quebec being more generous to children at lower estate values — is one of the least intuitive aspects of the cross-provincial comparison.

Cross-Provincial Estates: When You Have Assets in Both Quebec and Ontario

A growing number of Canadians own assets in both provinces — Quebec cottage plus Ontario home, or a business headquartered in Montreal with real estate in Toronto. For these estates, the interaction between the two legal systems creates specific complications:

• Dual probate exposure: If a Quebec resident owns Ontario real estate, the Ontario land registry will require a Certificate of Appointment of Estate Trustee — meaning Ontario estate administration tax on the value of the Ontario assets, even if the Quebec estate pays nothing for homologation
• Conflicting beneficiary rules: An RRSP designation made on a bank form may be valid for the Ontario assets in the account but invalid for the Quebec-situs assets — creating confusion for the financial institution and potentially triggering litigation
• Choice of law issues: The succession law that governs movable property (bank accounts, investments, RRSPs) is the law of the deceased's last domicile. The law that governs immovable property (real estate) is the law of the province where the property is located. A Quebec domiciliary with an Ontario cottage has their RRSP governed by Quebec law but their Ontario cottage governed by Ontario law

Five Actions for Families With Quebec-Ontario Estate Exposure

1. Verify your will type if you live in Quebec. If you have a holograph or witnessed will instead of a notarial will, you are paying unnecessary homologation costs. Converting to a notarial will costs $300 to $600 and eliminates all probate-equivalent fees at death — the single highest-ROI estate planning action available in Canada.
2. Check every RRSP, RRIF, and TFSA beneficiary designation. If you live in Quebec, the beneficiary form you signed at the bank is legally void. Your registered account beneficiaries must be designated in your will for the designation to have legal effect. Failure to do this means your registered accounts fall into the estate and are distributed under your will's residue clause or intestacy rules — potentially to the wrong person.
3. Get a dual-will structure if you own assets in both provinces. A single will covering both Quebec and Ontario assets forces the entire estate through the more expensive probate system. Two wills — one per province — can save $10,000 to $20,000 in probate costs on a $2M estate.
4. Understand your spouse's patrimony rights if you live in Quebec. The family patrimony division happens before succession, and it applies to married spouses automatically — you cannot opt out by will. If you want your children to receive more than the default succession share, you need to plan around the patrimony division, not ignore it.
5. Review your plan after any interprovincial move. Moving from Ontario to Quebec (or vice versa) changes the succession law that governs your movable property, the validity of your beneficiary designations, your spouse's entitlements, and your probate costs. A will drafted for Ontario does not automatically work the same way in Quebec. Have your estate plan reviewed by a lawyer licensed in your new province within 90 days of moving.