What to take away
- Only one property per family unit can be designated as a principal residence for any year, so a house and a cottage compete for the same years.
- A cottage is personal-use property: a gain is taxable in the years you do not designate it, but a loss is not claimable.
- The sale must be reported with a designation on your return, even if no tax is owing, and a late designation may attract a penalty.
Why a cottage is different from selling your home
When you sell the home you live in, the exemption usually covers every year you owned it. A cottage competes with your main home. The CRA allows only one property to be designated as your family’s principal residence for each year, and from 1993 the family means you, your spouse or common-law partner and your children under 18, with limited exceptions. A cottage can qualify only if you own it, you, your current or former spouse or common-law partner or a child lived in it at some point in the year and you designate it.
Designating is a choice, not an obligation. You may leave some years undesignated, which can be useful when one property has grown in value much faster than the other. This article focuses on that decision. Our guide on selling your home covers the basic reporting steps, and our article on selling a rental property covers recapture and rental use.
Which property to designate for which years
Because a year can only go to one property, the order of sales matters. If the cottage has gained far more than the house, you may want to designate the cottage for more years, which leaves part of the house’s gain exposed instead. The reverse can be true. The right answer depends on the gain on each property, the years you owned each one and your plans for the second property, including whether you will sell it at all.
Form T2091(IND) is where the CRA expects you to designate the years and calculate the part of the gain you must report. Model both properties before the first sale, not after, because designating years for one sale uses them up for the other. If you sell one property and buy another in the same year, the CRA’s plus 1 rule lets both be treated as eligible for that year, provided you were a Canadian resident when you bought the replacement. Write your decision down and keep it with the sale documents.
How the gain is worked out
A gain is the proceeds minus the adjusted cost base and your selling costs. The adjusted cost base is generally what you paid plus the costs of buying, such as commissions and legal fees, and capital improvements like an addition or a new dock. Ordinary maintenance and repairs cannot be added. Selling costs, such as a commission, reduce your proceeds but cannot be deducted from other income.
Cottages are often owned for decades, so the records are the hard part. Look for the purchase statement, receipts for major additions, and any property tax and legal papers that show the cost. If the cottage came to you after a death, the CRA says the property’s cost to you is generally equal to the deemed proceeds of the deceased person, so ask for the estate’s records. Where you cannot find a number, tell your accountant rather than guess.
An illustrative example
The figures are round and illustrative only. Suppose you bought a cottage for $200,000, spent $50,000 on a qualifying addition, and sold it for $500,000, paying $25,000 in selling costs. The gain is $500,000 minus $25,000 minus $250,000, or $225,000. If the cottage was not designated as your principal residence for any of those years, half of the gain, $112,500, is the taxable capital gain, added to your other income for the year and taxed at your marginal rates.
If you designate the cottage for some of the years, the exempt part reduces the gain, and Form T2091(IND) calculates it. A large gain in one year can push you into a higher bracket, so it is worth discussing timing before the closing date. The CRA’s current guidance still treats half of a capital gain as taxable, because the proposed increase in the inclusion rate was cancelled.
Losses and rental use
A cottage is generally personal-use property, which means that if you sell it for less than it cost you, you are not allowed to claim the loss. A loss on a rental property is treated differently, which is one reason the way you used the property matters. Part-time rental of a cottage is common, and it can change the answer.
The CRA treats a change in use as a sale at fair market value followed by an immediate reacquisition, and it usually treats a partial change as a change in use unless the rental use is relatively small, there are no structural changes and you claim no capital cost allowance. If you started renting a cottage, discuss it before you sell, and see our rental article for the recapture rules. Keep a record of the value on the date any change happened.
Spreading the tax with a reserve
If you are paid over several years, for example under a vendor take-back mortgage, a capital gains reserve may let you include the gain over time rather than all at once. The CRA says most reserves run for at most four years, so the gain is included over five, and you claim it using Form T2017. A longer period applies to certain transfers, such as a child receiving qualifying farm or fishing property, which does not include a typical cottage. Our article on the reserve explains the mechanics.
A reserve is a claim you make on your return, and it depends on the terms of the sale. It does not remove the gain, and it only helps if the proceeds really are received later. Ask your accountant and your lawyer about it before you sign the agreement of purchase and sale, not afterwards.
Reporting the sale
The CRA allows the principal residence exemption only if you report the sale and designate the property on your return for the year of the sale. That means filing Schedule 3 and Form T2091(IND), with a separate form for each property sold in the year. If you sold more than one property in the year, do not combine them. For a cottage the CRA directs personal-use property to a different line of Schedule 3 from real estate, and the taxable capital gain goes on line 12700.
If you forgot to report a sale, ask for an amendment to the return for the year of the sale. The CRA will accept a late designation in certain circumstances, but a penalty may apply, and its page does not give the amount, so ask an accountant to confirm. If the cottage was held in a corporation or trust, the personal rules above do not apply as written and you should get advice first.
Before you list the property
Gather the purchase and sale statements, receipts for improvements, a note of the years each property was your main home, the dates and terms of any rental use, and the date of any change in use. Residential property owned for less than 365 consecutive days is generally treated as business income under the flipping rule, with exceptions for certain life events.
Ask three questions. Which property should carry the principal residence years? Is any part of the gain unsheltered, and in which year will it be taxed? Would a reserve help? Our personal tax service can work through these before the listing, and the personal tax checklist can help organize the documents.
Sources & editorial notes
Sources checked October 24, 2026. The examples are illustrative and provide general information. Discuss how the guidance applies to your circumstances with your accountant.
- Principal residenceCanada Revenue Agency
- Calculating and reporting your capital gains and lossesCanada Revenue Agency
- Definitions for capital gains and lossesCanada Revenue Agency
- Guide T4037, Capital GainsCanada Revenue Agency
- What’s new for corporationsCanada Revenue Agency
Rules and guidance can change. Use the current official source and confirm the treatment for your facts. To flag an error, contact Sora.