Estate Planning During Divorce in Canada
A 49-year-old account manager in Mississauga separates from her husband of 17 years in February. By the following spring she has moved into a rented condo, her own lawyer has filed the divorce petition, and most of her household is sorted. What has not been sorted: her existing will still names her husband as executor and primary beneficiary, her RRSP and TFSA beneficiary forms at the bank still name him, and her workplace life insurance still pays out to him at any age. She drives past the family lawyer's office twice a week without going in. The thinking is "I will update it when the divorce is finalized." The divorce takes three more years.
This is the single most common estate-planning gap in Canadian separations. The interim window between separation and divorce — often two to four years — is exactly when the most-recent-document rule is most exposed. The old will, the old beneficiary forms, and the old power of attorney all remain in force. This guide walks the actual rules and what to do immediately on separation, not after the divorce.
The general rule: divorce voids gifts to a former spouse
Across most Canadian common-law provinces, a final divorce decree automatically rewrites parts of an existing will. The technical mechanism, in Ontario for example, is section 17 of the Succession Law Reform Act:[1]
- Any gift in the will to the former spouse is revoked
- The former spouse is removed as executor and trustee
- Any power of appointment granted to the former spouse is revoked
- The will is read as if the former spouse had predeceased
Gift-over clauses and alternate appointments take effect — if the will said "to my spouse, otherwise to my children equally", the children inherit. If there is no gift-over for a specific gift, that gift typically falls into the residue.
The will itself does not collapse. Everything else in it — gifts to other beneficiaries, appointment of alternate executors, guardian appointments for minor children, charitable bequests — continues to operate normally. The mechanism is surgical, removing the former spouse and leaving the rest.
British Columbia,[2] Alberta,[3] and most other common-law provinces have analogous statutory rules.
The separation gap — the period the rules do not cover
Until 2022, Ontario's rule (like the rules in most other provinces) applied only to divorce, not separation. A couple could be separated for years — living apart, with a signed separation agreement, with the divorce filed but not yet granted — and the existing will would still name the separated spouse as executor and primary beneficiary.
Ontario's section 17 was amended (effective January 1, 2022) to extend the rule so that gifts to a separated spouse are also revoked, if any of three conditions are met at the time of the testator's death:[1]
- The spouses lived separate and apart as a result of marriage breakdown for at least three years immediately before death, OR
- The spouses entered into a valid separation agreement under Part IV of the Family Law Act, OR
- A court made an order setting out their rights and obligations on marriage breakdown
This 2022 amendment is significant — it closes much of the separation gap for Ontarians who satisfy any of the three conditions.
Most other provinces have not adopted the same extension. In those jurisdictions, a couple who separates today but is not yet formally divorced still has a will that treats the separated spouse as a current spouse. The standard advice — make a new will the same week you separate — is doubly important outside Ontario, because the statutory safety net does not catch the separation period in those provinces.
What divorce does NOT automatically change
Even when divorce automatically revokes gifts in the will, three categories of arrangement are unaffected and need to be updated by the person directly:
Beneficiary designations on registered accounts and insurance. These are contract designations between you and the financial institution or insurer. They do not change on divorce. The former spouse named on the RRSP form remains the named beneficiary unless you file a new form. This is the most commonly missed update after a Canadian divorce — both the lawyer and the institution typically assume the client will handle the other side.
Joint accounts and jointly held property. Joint tenancy with right of survivorship passes by survivorship at death, outside the will. If a separated or divorced couple still holds the family home as joint tenants, the surviving owner inherits the entire property regardless of what the will says. Severing the joint tenancy (converting it to a tenancy in common) is a separate legal step that needs to be taken explicitly.
Powers of attorney. Ontario's Substitute Decisions Act does treat a former spouse as having resigned from a power-of-attorney appointment on divorce,[5] but the document continues to operate for any other named attorney, and the rule is province-specific. The clean route is to revoke the old POA and execute a new one naming someone other than the former spouse, regardless of any provincial default.
What to do immediately on separation
The standard sequence on separation (do not wait for the divorce to finalize):
Week 1 — Triage. Identify every document where the spouse is named: will, power of attorney for property, power of attorney for personal care, RRSP beneficiary forms, RRIF, TFSA (successor holder and beneficiary), workplace pension, life insurance (individual and group), segregated funds, stock-option plans, vehicles held jointly, real estate held jointly.
Week 2 — Power of attorney. Revoke the existing POA documents and execute new ones naming someone other than the separated spouse. Notify any institution that has a copy of the old POA on file.
Week 3 — Beneficiary designations. Submit new designation forms to every institution. Confirm in writing that each has been received and applied. This is paperwork-heavy but quick.
Week 4-6 — New will. Draft a new will that revokes all prior wills, names a new executor and alternates, removes any direct gifts to the separated spouse, and updates the residue clause. The new will operates from the moment it is signed and witnessed, even though the divorce may not be finalized for years.
Ongoing — Joint property review. Decide whether to sever any joint tenancies. This is a family-law decision interacting with property division and ordinarily involves a family lawyer.
After the divorce is final, a second review is reasonable to confirm everything reflects the new reality (especially if there are new dependants or a new partner).
The interaction with family law claims
Updating the will does not, on its own, defeat any family-law claims the separated spouse may still have against the estate. Depending on the province and the timing of the death, the separated spouse may have rights to equalization (Ontario's Family Law Act framework),[4] dependant-relief support, or matrimonial-home protections that exist independently of the will. The will controls who inherits the estate after these claims are satisfied; it does not eliminate the claims themselves.
For families with significant assets, separating in the middle of a will-redrafting period generally warrants a coordinated conversation between the family lawyer (handling the divorce and property division) and whoever is drafting the new will. The two work products need to be consistent.
For broader context, see the pillar guide on estate planning in Canada and the related articles on how to write a will and updating beneficiary designations.
What we focus on at It's Simple Will
The Will Creator is built to support the separation-and-divorce update flow specifically. Users in the middle of a separation can run through the questions again to produce a new will that supersedes the prior one, name a new executor and alternate, and update guardian appointments for minor children if needed. The Life Discovery Kit captures the operational detail (new banking, new addresses, new emergency contacts) so the executor has a current source of information.
The cost of updating the documents the same week you separate is one quiet evening. The cost of dying mid-separation with a five-year-old will still in force is incalculable.
Citations & sources
- [1]Succession Law Reform Act, RSO 1990, c S.26 — sections 17 and 17(3) (Ontario) — Government of Ontario
- [2]Wills, Estates and Succession Act, SBC 2009, c 13 (British Columbia) — BC Laws
- [3]Wills and Succession Act, SA 2010, c W-12.2 (Alberta) — CanLII
- [4]Family Law Act, RSO 1990, c F.3 (Ontario) — Government of Ontario
- [5]Substitute Decisions Act, 1992, SO 1992, c 30 (Ontario powers of attorney) — Government of Ontario
Frequently asked questions
Does divorce automatically cancel my old will?
No. Divorce automatically voids gifts to the former spouse and removes them as executor in most Canadian provinces. The will itself continues to be in force and governs the rest of the estate. The will is read as if the former spouse had predeceased — gift-overs and alternates take effect; the rest of the document still applies.
What about during separation, before the divorce is final?
In most provinces, separation alone does not revoke gifts to the spouse. Until the divorce decree is granted, the existing will is generally still in force and the separated spouse remains a beneficiary and (often) executor. Ontario is an exception — section 17 of its Succession Law Reform Act treats certain separated spouses (after a three-year apart period, a separation agreement, or a court order) as if divorced for will purposes. The other provinces have not generally adopted the same extension.
Should I write a new will when I separate or wait until the divorce is final?
Generally write a new one when you separate. Waiting until the divorce is final leaves a window — often years — during which the separated spouse may still be the named executor and primary beneficiary. The new will revokes the old one, names a new executor and beneficiaries, and brings the document in line with current intentions. It can be revised again after the divorce is finalized if circumstances change.
Do beneficiary designations on registered accounts change automatically on divorce?
No. Beneficiary designations on RRSPs, RRIFs, TFSAs, and life insurance are contract designations between you and the institution, and they generally do not change on divorce. The former spouse remains the named beneficiary until you file a new designation form with the institution. This is one of the most common sources of unintended outcomes after divorce.
Does my power of attorney change automatically on divorce?
Provincial rules vary. In Ontario, a former spouse named as attorney for property or personal care is generally treated as having resigned on divorce, but the document itself continues for any other named attorney. In other provinces the rule may differ. The clean approach is to revoke the old power of attorney and execute a new one naming someone other than the former spouse, regardless of provincial defaults.
What happens to a will if I die during separation?
In most common-law provinces, the existing will applies — gifts to the separated spouse generally take effect and the named executor still acts. Family law claims (equalization, spousal support, dependant relief) may still be raised against the estate even where the spouse is the beneficiary. Ontario's revised section 17 treats certain separated spouses as predeceased, so the result there can be different.