Estate Planning With a Family Cottage in Ontario

A family in Toronto bought a Muskoka cottage in 1987 for $108,000. The parents added a boathouse in 1996 for $45,000 and replaced the roof in 2011 for another $22,000. The father died in 2024; the cottage's fair market value at that point was $1.4 million. The estate's capital gains tax bill on the cottage alone was approximately $295,000, falling on an estate whose other liquid assets totalled about $230,000. The executor had to either sell the cottage to fund the tax or persuade the surviving spouse to refinance her home to cover the gap. The cottage that the parents had wanted to keep in the family for the grandchildren was at risk of being sold within twelve months of the father's death.

This is the typical Ontario cottage estate-planning problem. The tax bill is large, the cottage is illiquid, and the family rarely has the cash to pay one without selling the other. This guide walks the rules, the planning tools, and the trade-offs.

For the general framework, see our pillar on estate planning in Canada and the companion piece on the Canadian probate fee calculator for the Ontario probate angle.

The deemed disposition rule, in Ontario terms #

The Income Tax Act section 70(5) deems the deceased to have disposed of all capital property at fair market value as of the date of death.^[1] The deemed disposition creates a capital gain (or loss) on each property held at death. Half of the gain — 50% under the current inclusion rate that remains in force after the March 2025 cancellation of the proposed increase — is included in the deceased's taxable income on the final tax return.

For an Ontario taxpayer at the top marginal rate, the effective tax rate on a capital gain is approximately 26.76% in 2025 (the top combined federal-Ontario marginal rate of 53.53% applied to the 50% taxable portion). A $660,000 gain produces about $177,000 of tax. Real-world tax bills on Ontario cottages routinely run $100,000 to $400,000, depending on the cottage's age, location, and improvement history.

The tax is in addition to the Ontario Estate Administration Tax (probate fee) of 1.5% on estate value above $50,000, which for a $1.4 million estate is approximately $20,000.^[4]

The principal residence exemption — the only true tax shelter #

The principal residence exemption (PRE) is the single most powerful tax shelter in the Income Tax Act for ordinary Canadians.^[2] A property designated as the family's principal residence for a given year is exempt from capital gains tax for that year through a per-year formula on Form T2091.^[3]

The constraint is that a family can designate only one property as principal residence per year. For most Ontario families, the city home is the natural designation because they live in it most of the year. But the Income Tax Act does not require the designated property to be the one inhabited most days — only that it has been "ordinarily inhabited" by the taxpayer, spouse, or child at some point during the year. A summer-only cottage qualifies as "ordinarily inhabited."

The planning move is to compare the average annual gain on the city home versus the cottage and designate whichever has appreciated more per year. The classic example: a Toronto home bought for $300,000 in 1985 and worth $1.6 million in 2024 has gained roughly $33,000 per year. A Muskoka cottage bought for $108,000 in 1985 and worth $1.4 million in 2024 has gained roughly $33,000 per year as well — making the cottage and the home roughly equivalent on a per-year basis. The actual designation choice depends on the specific gains; in many Ontario cases the cottage has appreciated faster per year than the home and the cottage is the better designation for at least some years.

The designation can be split. A family can designate the city home for years 1985-2005 and the cottage for years 2006-2024, picking each year for whichever property is winning. The arithmetic is performed on Form T2091 attached to the final return.

The complication is that designating the cottage for any year means the home is not designated for that year, exposing the home's gain for those years. For most families the home eventually sells and the deferred gain crystallises. The PRE designation question is, in effect, a question of which property bears the tax — not whether tax is paid at all (unless the family is willing to live in the cottage as their year-round residence in the final years before death).

The spousal rollover #

ITA section 70(6) allows capital property to pass tax-deferred to a surviving spouse on death. For a cottage held by one spouse, the spouse-to-spouse transfer is tax-deferred and the deemed-disposition gain is postponed until the surviving spouse's death or eventual disposition.

This is generally the first line of cottage tax planning for couples. The cottage is left to the surviving spouse in the will, the rollover is automatic, and the tax is deferred for the remainder of the surviving spouse's life. The catch is that the surviving spouse eventually faces the same problem, often with a higher fair market value due to continued appreciation. The rollover defers the tax; it does not eliminate it.

Some couples choose to bypass the spousal rollover and report the gain on the first death, particularly if the deceased's marginal rate is lower than the surviving spouse's will eventually be, or if available capital losses can be applied. This is a sophisticated tax-planning choice and requires modelling both spouses' tax positions.

Joint tenancy with adult children #

The next-most-common cottage planning move is to add adult children to title as joint tenants with right of survivorship. The theory is that on the parent's death, the cottage passes to the surviving joint tenants by operation of law, outside the estate, avoiding both probate fee and the deemed-disposition tax on the parent's share.

The theory is incomplete and the practice is risky. Three issues recur.

First, adding children to title is itself a disposition for tax purposes. The parent is deemed to have disposed of the percentage of the cottage transferred to the children at fair market value at the time of joint titling. This accelerates part of the capital gains tax to the year of joint titling rather than the year of death. For a cottage with $1 million of accrued gain, adding two children to title transfers two-thirds (or some proportion) at current FMV, triggering the gain on the transferred portion immediately.

Second, the Supreme Court of Canada decision in Pecore v. Pecore (2007 SCC 17) established a rebuttable presumption that joint title held by a parent with an adult child is held in resulting trust for the parent's estate.^[5] The presumption means that absent clear documentation of the parent's intent to make a beneficial gift of the survivorship interest, the cottage will be treated as forming part of the estate notwithstanding the joint title. The intended tax and probate planning collapses.

Third, joint tenancy exposes the parent to the children's creditors, divorces, and financial troubles. A child going through a divorce can find their joint interest in the family cottage subject to family-property claims. A child filing bankruptcy can put their interest into the bankruptcy estate.

The combined effect is that joint tenancy with adult children is a workable tool only when the parent's intent to make a beneficial transfer is clearly documented (signed declaration, gift agreement, contemporaneous tax filings reflecting the transfer), the parent accepts the accelerated tax cost, and the family is reasonably confident in each child's financial and marital stability.

Life insurance as the cottage tax fund #

The most reliable tool for preserving the cottage in family hands is a joint-last-to-die life insurance policy on the parents, with the cottage-inheriting children as the named beneficiaries. The policy pays out on the second parent's death, providing a tax-free lump sum that the children can use to fund the deemed-disposition tax.

The economics of the joint-last-to-die structure are favourable because the insurer prices on the probability of both parents dying before the policy matures, which is lower than either alone. Premiums are modest for parents in good health in their fifties and sixties; the death benefit is sized to approximate the projected tax bill on the cottage at the parents' eventual deaths.

A variant is to have the parents' estate own the policy, with the proceeds funding the tax through the estate's hands rather than directly to the children. This adds flexibility but exposes the proceeds to potential creditor or dependent-relief claims; direct payment to named beneficiaries generally bypasses the estate.

The cottage trust #

A more sophisticated structure is an inter vivos cottage trust. The parents transfer the cottage to a discretionary family trust during life, triggering the deemed disposition at that point. The trust then holds the cottage for the benefit of family members named in the trust deed. On the parents' eventual deaths, the cottage is already held in the trust and does not pass through the estate.

The complication is the 21-year deemed disposition rule applicable to discretionary trusts, which produces a re-trigger of the capital gains every 21 years inside the trust. Many cottage trusts are structured to terminate before the 21-year mark and distribute the cottage to a named beneficiary at that time.

Cottage trusts also raise probate-avoidance benefits — the cottage is outside the parents' estate from the date of trust funding — and family-governance benefits, allowing the parents to define usage rules, cost-sharing arrangements, and successor rights among multiple children. The downsides are setup cost (a properly drafted cottage trust runs several thousand dollars in legal fees), annual trust filing requirements, and the inflexibility of moving the cottage out of the trust once it is in.

Practical checklist for an Ontario cottage owner #

A short list of the steps most Ontario cottage families benefit from.

Document the adjusted cost base carefully. Original purchase price plus capital improvements over the years (the boathouse, the new septic system, the roof) all add to the ACB and reduce the eventual gain. Receipts for major improvements should be retained indefinitely.

Decide the PRE designation strategy during life so the family has the documentation ready. Compare per-year gain on the home versus the cottage and identify the years the cottage should win.

Consider joint-last-to-die life insurance if the cottage is to stay in family hands. Get quotes during good health; the policy is far more affordable in your fifties than in your seventies.

Update the will to specifically address the cottage. Identify who inherits, whether they have to compensate non-inheriting siblings, and whether the executor has authority to use estate liquidity to fund the cottage tax bill or whether the inheriting child has to fund their own share.

Avoid casual joint tenancy with adult children without legal advice. The risks generally exceed the benefits except in narrow circumstances.

Talk to the family during life. Cottage estate disputes are among the most emotionally charged in Canadian estate litigation, partly because the cottage holds family memory rather than just money. A family that has talked through who wants what and on what terms is far less likely to litigate.

What this means for your plan #

Two takeaways. First, the Ontario cottage capital gains bill is generally the biggest single tax cost in a middle-class Ontario estate, and it is largely manageable with planning — but the planning has to start while both parents are alive and reasonably healthy. Second, the will is only one of the tools — the principal residence designation, the joint-last-to-die policy, the cottage trust, and the family conversation are at least as important, and they each have to be set up well before the deemed disposition crystallises.

When clients build their estate plan with It's Simple Will, the Will Creator captures the cottage as a specific bequest separately from the residue and flags whether the inheriting child is expected to compensate non-inheriting siblings. For the broader picture, our pillar on estate planning in Canada covers the deemed-disposition framework and the spousal rollover.