How to Write a Will in Canada — A Step-by-Step Guide by Province

Roughly half of Canadians don't have a will. The reason they give, in survey after survey, isn't cost or complication — it's the assumption that writing one requires a lawyer's office, a stack of legal forms, and a fee they don't want to spend on something they hope won't matter for decades. The legal reality is much simpler. A Canadian will needs a small handful of formal ingredients to be valid; the rest is just clear writing.

This guide walks the actual process — what makes a Canadian will legally binding, the province-by-province quirks, the common mistakes that void otherwise-fine documents, and when bringing in a lawyer is worth the cost.

The legal requirements (the short version) #

Every Canadian common-law province has roughly the same basic test. A formal will is valid if:

1. The testator (the person making the will) is at least 18 years old (younger if serving in the military or married in some provinces) and has mental capacity at the time of signing.
2. The will is in writing — typed or handwritten.
3. The testator signs the will at the end in the presence of two witnesses who are both present at the same time.^[1]
4. The two witnesses also sign, in the presence of the testator. (Most provincial statutes require the witnesses to sign in front of the testator, not necessarily in front of each other — but doing the whole signing as one continuous ceremony, with everyone in the room together, is the safest practice and avoids any doubt.)

Across all provinces, the testator must sign the will themselves (or direct someone to sign on their behalf in their presence and at their direction, which is rare but legally permitted). A typed-up will that's never signed is not a will.

What goes in a Canadian will #

A complete will covers six things, in roughly this order:

Identification and revocation. The testator's full legal name, and a clause revoking any prior wills. This second part matters: without it, an old will from years earlier can survive alongside the new one and create conflicts that get sorted out by the court (slowly).

Appointment of executor. The person — or persons — who will administer the estate. Most wills name a primary executor and at least one alternate in case the primary is unable or unwilling to act. Executors must be at least 18 (varies slightly by province), of sound mind, and ideally living in the same province as the estate (out-of-province executors face higher bond requirements in some places).

Guardian for minor children. If the testator has children under 18 (or under 19 in BC), the will names the person who would raise them if both parents died. This appointment isn't binding on a court but carries significant weight — courts ordinarily honour a testator's expressed wishes unless there's a clear reason not to.

Specific gifts (legacies and bequests). Particular items or amounts going to particular people — "my grandmother's wedding ring to my daughter Sarah", "$5,000 to the Canadian Cancer Society". These are paid before the residue is distributed.

Residue clause. Who gets everything else. This is typically the largest portion of the estate and the most important clause in the will. A common pattern is "to my spouse if living, otherwise equally among my children, with a child's share to that child's children per stirpes" — meaning if a child predeceases, that child's portion flows to their kids.

Signing block and witness lines. The signature page, with space for the testator's signature, the date, and two witnesses' signatures, addresses, and occupations.

A will can also include funeral wishes, instructions about pets, charitable gifts, trust provisions for minor or vulnerable beneficiaries, and digital-asset directions. None of these are required, but most well-drafted wills include at least some of them.

Province-by-province quirks #

Most of the variation between provinces shows up in three places: holograph wills, signing requirements, and what happens on marriage.

Holograph wills (entirely handwritten and signed by the testator, with no witnesses):

• Not recognized: British Columbia, Prince Edward Island.

A holograph will must be entirely in the testator's own handwriting — typed text or pre-printed forms with handwriting added do not qualify in most provinces.

Substantial compliance / curative provisions: Several provinces have statutes allowing courts to validate a will that fails technical requirements if there's clear evidence of the testator's true intentions. It's a real safety net, not a backup plan — applications cost the estate money and the outcome isn't guaranteed.^[4]

Marriage and divorce. Historically, marriage automatically revoked a Canadian will unless the will was made "in contemplation of marriage". Most provinces have reformed this — Ontario in 2022, Alberta in 2012, BC in 2014 — so a will made before marriage now generally survives the marriage. Divorce, in contrast, ordinarily voids gifts to and the executor appointment of a former spouse, though the will itself remains valid. Specific provincial rules apply.

The signing ceremony (where most DIY wills go wrong) #

The most common reason a Canadian will is challenged in court isn't the content — it's the signing. Three rules to follow without exception:

Rule 1 — Don't use a beneficiary or their spouse as a witness. In most provinces, this voids any gift to the witness (or their spouse), though the will itself survives. The fix is to use two neutral witnesses — friends, neighbours, coworkers — who get nothing under the will.

Rule 2 — Sign in front of both witnesses at the same time, and have them sign in front of you. All three signatures should happen in one continuous ceremony, with everyone present together — this is the safest way to satisfy every province's rules at once. Signing the will at home and then dropping it off for witnesses to sign separately, or having one witness sign on a different day than the other, ordinarily breaks the validity requirement.

Rule 3 — Sign at the end. Add nothing — no afterthoughts, no notes, no codicils — below the signature. Anything written after the signature is treated, in many provinces, as not being part of the witnessed will.

Some wills also include an affidavit of execution — a sworn statement from one of the witnesses confirming the signing took place properly. This isn't legally required but speeds up probate by eliminating the need to track down witnesses years later. Most lawyers include one; assisted-will services like ours generate one as part of the package.

When to write your own — and when to bring in a lawyer #

The pragmatic test most Canadians can apply to themselves:

A DIY or assisted will is generally sufficient when:

• The estate is uncomplicated — one home, conventional accounts, no business interests.
• The family situation is conventional — one marriage, biological children, no estranged relatives likely to challenge.
• The total estate value is below the threshold where Canadian capital gains tax planning materially affects the outcome.
• The testator is mentally clear and the will reflects straightforward intentions.

A lawyer is worth the cost when:

• There is a private business or shares in a private corporation.
• The family is blended — children from a prior relationship, complex stepparent dynamics.
• Assets are held in multiple jurisdictions or there are foreign beneficiaries.
• A child or dependant has special needs requiring a Henson trust or similar structure.
• The testator is older, vulnerable, or facing pressure from any family member.
• The estate is large enough that capital gains planning, spousal trusts, or alter-ego trusts could meaningfully shift the tax outcome.

The cost difference is real — a lawyer-drafted will in Canada typically runs $400 to $1,500+ depending on complexity, while an assisted online service runs roughly $99 to $250. For straightforward families with conventional estates, the lower-cost path is usually adequate; for everything else, the lawyer's fee is small relative to what's at stake.

How It's Simple Will handles this #

Our will questionnaire walks through the same six sections covered above, in plain English, in roughly 30 to 60 minutes. The document it produces is correctly formatted for your province, includes the right witness blocks, and ships with signing instructions and an affidavit of execution template. It is not a substitute for a lawyer when the estate calls for one — but for the majority of Canadian families with straightforward situations, it gets the job done at a small fraction of the lawyer fee.

You can also explore our related guides: what is probate in Canada, and our Canadian probate fee calculator for estimating fees by province.