Will & estate planning in Canada: the rules that actually differ by province

What makes a will valid in Canada

Every province requires the basics: the will must be in writing, the person making it must be an adult of sound mind, and it must be signed. The part that trips people up is the witnessing. In most provinces a formal will needs the testator's signature plus two witnesses, and all three must sign in each other's presence — the witnesses watch you sign, you watch them sign, everyone in the same room (Ontario now also permits remote witnessing by video, as long as one witness is an Ontario lawyer or licensed paralegal).

Two witness rules matter more than the rest. First, a witness should never be a beneficiary — in most provinces a gift to someone who witnessed the will is void, which can accidentally disinherit the exact person you meant to provide for. Second, the will should name an executor (called an estate trustee in Ontario) and ideally an alternate, because the executor is the person who actually carries the whole thing out.

Handwritten wills: legal in some provinces, not in others

A holograph will — written entirely in your own handwriting and signed, with no witnesses — is explicitly valid in Ontario, Alberta, Manitoba, and Quebec. It needs no witnesses and no formalities beyond being wholly handwritten and signed. People reach for these in emergencies, and courts do honour them.

British Columbia is the notable holdout: BC's Wills, Estates and Succession Act requires the two-witness formality, and a purely handwritten will doesn't meet it on its own. BC does have a curative provision letting courts validate a document that clearly expresses the deceased's intentions, but relying on a judge's discretion is a gamble no estate plan should take. Wherever you live, a properly witnessed formal will is harder to challenge than a holograph one — handwriting gets disputed, witnesses rarely do.

Province by province: the differences that matter

Wills law is provincial, and the differences are real — not trivia:

• Ontario — The Succession Law Reform Act. Since January 1, 2022: marriage no longer revokes a will (it used to), courts can validate a will that missed formalities if the intentions are clear (section 21.1), and a separated spouse is treated much like a divorced spouse for gifts and intestacy. Remote witnessing is permanent with a lawyer or paralegal as one witness.
• British Columbia — The Wills, Estates and Succession Act (WESA). Two witnesses, all signing together; no holograph wills as of right. BC also specifically provides for electronic wills and signatures. Incapacity planning uses a representation agreement alongside the enduring power of attorney.
• Alberta — The Wills and Succession Act. Holograph wills are explicitly recognized, and probate is cheap: flat court fees capped at $525. A straightforward province for simple estates.
• Quebec — Civil law, and the outlier. Quebec recognizes three forms: notarial (prepared by a notary, signed before the notary and a witness), holograph (handwritten and signed), and witnessed. A notarial will is the gold standard: it is self-proving and generally needs no probate proceeding at all. Note also that joint tenancy with right of survivorship — a common probate-avoidance tool elsewhere — doesn't exist under Quebec civil law.
• Manitoba and Saskatchewan — Holograph wills recognized (Manitoba explicitly); Manitoba eliminated probate fees in 2020, Saskatchewan charges 0.7%.
• Atlantic provinces and the territories — Common-law formalities (two witnesses) with modest flat or percentage probate fees; Nova Scotia's percentage is among the country's highest. Confirm the local fee schedule — it changes more often than people expect.

If you own property in more than one province — or in the US — say so in the will and get advice in each jurisdiction. A will valid in Ontario is generally recognized elsewhere in Canada, but US real estate usually needs a separate local proceeding, and US estate tax filing obligations can apply to Canadians with US-situs assets.

Dying without a will: the province writes one for you

Die intestate (without a valid will) and your province's formula distributes the estate — no exceptions for what you 'would have wanted.' Ontario's formula is the most-cited example: a married spouse with no children takes everything; with one child, the spouse takes a $350,000 preferential share (raised from $200,000 in 2021) plus half the remainder; with two or more children, the spouse takes $350,000 plus one-third of the remainder. Common-law partners get nothing under the formula itself and must apply to court as dependants.

Intestacy also costs time. With no executor named, someone must apply to court to be appointed estate trustee (administrator) before anything can be sold, transferred, or distributed — and if there are minor children, the court decides guardianship, not your family. Every province has its own version of this formula, but the pattern is the same: spouse and children first, then parents, siblings, and further relatives, with the estate going to the Crown only if no relatives exist.

Powers of attorney: the documents people forget

A will only acts after death. If you're alive but incapacitated — a stroke, dementia, a serious accident — it's the power of attorney that matters, and most Canadians don't have one. The names differ by province but the job is the same: you appoint someone to make decisions for you while you can't.

Ontario uses two documents: a continuing power of attorney for property (finances, bills, assets — 'continuing' means it survives your incapacity) and a power of attorney for personal care (health, housing, and daily-life decisions). BC pairs an enduring power of attorney with a representation agreement covering health and personal care. Other provinces use enduring or general powers of attorney with local variations.

Without one, your family typically needs a court-appointed guardian or committee — a public, slow, expensive process that can freeze bank accounts in the meantime. The POA is signed while you're capable, names a trustworthy attorney (and an alternate), and sits in a drawer until it's needed. It belongs in every estate plan, next to the will.

Probate: what it costs, and what avoids it

Probate (called a Certificate of Appointment of Estate Trustee in Ontario) is the court's confirmation that the will is valid and the executor may act. Banks and land registries usually demand it before releasing assets — which is why even a perfect will often goes through probate. The fee depends entirely on the province:

• Ontario — Estate Administration Tax: $0 on the first $50,000, then 1.5% ($15 per $1,000) on the rest. A $500,000 estate pays about $6,750.
• British Columbia — $0 on the first $25,000, 0.6% on the next $25,000, 1.4% above $50,000. A $500,000 estate pays about $6,450 in probate fees (plus a $200 filing fee, so roughly $6,650 all-in).
• Alberta — flat fees capped at $525 regardless of estate size.
• Quebec — a notarial will is effectively exempt from probate proceedings; a non-notarial will pays a modest flat court fee.
• Manitoba — no probate fees at all since 2020; Saskatchewan 0.7%; Nova Scotia among the highest at 1.695% above $100,000.

Assets that pass outside the estate skip probate entirely: property held in joint tenancy with right of survivorship, RRSPs/RRIFs/TFSAs and life insurance with a named beneficiary (not 'my estate'), and — in Ontario — private company shares covered by a secondary (corporate) will. That's why beneficiary designations deserve the same attention as the will itself: a designation naming an ex-spouse while the will names the new one creates exactly the fight the plan was meant to prevent.

The seven mistakes that break Canadian wills

Most failed estate plans fail on basics, not law:

• Never updating it — marriage, divorce, separation, children, a new business, or a move to another province all change what the will should say. Ontario's 2022 reforms alone (marriage no longer revoking wills, separated spouses treated like divorced ones) silently changed thousands of existing plans.
• Beneficiary designations that contradict the will — the RRSP says the ex-spouse, the will says the kids. The designation usually wins, and the fight is expensive.
• A beneficiary who also witnessed the signing — the gift to that witness is typically void.
• Witnessing done wrong — witnesses who weren't all present together, or only one witness. BC is strictest here.
• No alternate executor or alternate beneficiaries — if your first choices predecease you or decline, the will has a hole.
• Forgetting digital assets — passwords, crypto, online accounts, and businesses live behind logins. An executor can't administer what they can't access.
• Hiding the will — an original nobody can find is nearly as bad as no will. Tell the executor where the signed original lives, and keep powers of attorney with it.

Keeping it current: the review rhythm

A will is not a one-time document. Review it every three to five years, and immediately after any major life event: marriage, separation, divorce, a birth or adoption, a death among your beneficiaries or executor, buying or selling property, starting a business, or moving provinces. Each of those can quietly undo part of the plan.

Store the signed original somewhere safe and fire-resistant — a lawyer's vault, a notary's office in Quebec, or a home safe — and make sure your executor knows where it is. Give your powers of attorney the same treatment. Then get back to living: the whole point of the plan is that nobody has to think about it again until it matters.