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Selling Property to a Family Member Below Market Value in Canada

Selling property to a relative for less than it is worth? See how Canada's deemed proceeds rule works, why you could be taxed twice, and what to check first.

Tax4 min readTSLBy the Treadstone Law Team · CanadaUpdated November 1, 2026
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Key takeaways
  • If you sell capital property to a non-arm's length person for less than fair market value, your proceeds are deemed to be fair market value.
  • The buyer's cost can remain the lower price actually paid, so the same gain can be taxed twice.
  • Transfers to a spouse or common-law partner follow different rules, and gifts to others are also treated as sales at fair market value.

Many families want to sell a home, cottage or investments to a child or sibling at a friendly price. It feels generous, but the Income Tax Act does not simply accept the price on the paper. For tax purposes the seller may be treated as if they had sold at full value.

This article explains the deemed proceeds rule, how double taxation can happen, and the main exceptions. It is general information; the numbers in a real transaction need professional review.

This article covers Canadian federal tax law, which applies in every province.

The deemed proceeds rule

If you sell to a non-arm's length person, such as a relative, for less than fair market value (FMV), your proceeds are deemed to be the FMV. The CRA describes it the same way: your selling price is considered to be the FMV.

Fair market value is, in plain words, what the property would reasonably sell for between unrelated parties. Because the deemed price can differ from what you were actually paid, you can owe tax on money you never received.

How double taxation happens

The seller is taxed as if the price were FMV. The buyer, however, has a cost equal to the lower price actually paid. Since the buyer's cost remains that lower price, the same gain can be taxed twice, once in the seller's hands and again when the buyer later sells.

The mirror rule applies to buyers. If you buy from a non-arm's length person for more than FMV, your cost is considered to be the FMV.

SituationSeller's proceedsBuyer's cost
Sale to a relative below FMVDeemed to be FMVThe lower price paid
Purchase from a relative above FMVThe price paidDeemed to be FMV

How the gain is taxed

The gain is the proceeds minus the ACB and selling expenses. Here the proceeds are the deemed FMV. One-half of the capital gain is the taxable capital gain, and it is added to your other income on line 12700 of your T1 return.

If the property was your principal residence, you must report the sale on Schedule 3 and include Form T2091(IND). Since 2016 the exemption is allowed only if the disposition and designation are reported on the return, and a late designation may attract a penalty.

If you are paid over several years, a capital gains reserve may spread the gain. Most reserves can be claimed for a maximum of four years after the year of sale. You generally cannot claim a reserve if you sold the property to a corporation you control in the relevant tax year or the following year. For transfers to a child of family farm or fishing property or qualified small business corporation shares, the reserve can run nine years.

Gifts and transfers to a spouse

A gift of capital property, other than to a spouse or common-law partner, is treated as a sale at FMV on the date of the gift, and the giver reports a gain or loss. The recipient is generally considered to acquire the property at FMV.

A transfer to a spouse or common-law partner generally happens at ACB with no gain or loss, and the transferor can elect out. If the spouse later sells, the gain is generally attributed back to the transferor. After a relationship breakdown, the transferor may avoid reporting the attributed gain by filing an election with their return.

Income from property transferred or lent to a minor who is not at arm's length with you, or who is your niece or nephew, is treated as your income, until the end of the year the minor turns 18. Capital gains on gifted property are not attributed back to a minor child under the spouse rule.

What to do next

Frequently asked questions

Can I sell to my child for $1 and avoid tax?

Not safely. If you sell to a non-arm's length person for less than FMV, your proceeds are deemed to be FMV. You can owe tax on the gain even though you received very little.

What if I sell to a relative for more than the property is worth?

The buyer's cost is considered to be the FMV, not the higher price paid. That means the buyer does not get credit for the overpayment.

Is a gift treated differently from a below-market sale?

Both use FMV. A gift of capital property, other than to a spouse or common-law partner, is treated as a sale at FMV on the date of the gift.

Does a spouse transfer work the same way?

No. A transfer to a spouse or common-law partner generally happens at ACB with no gain or loss, though you can elect out.

Sources

Links go to official government, court and regulator pages. The law changes — confirm you are reading the current version.

This article is general information, not legal advice. Reading it does not create a lawyer-client relationship. Canadian laws, tax rates, and government programs change, and how the law applies depends on your specific facts. For advice about your situation, speak with a tax lawyer or accountant. Reach us at 1-844-900-1070 or send our Team a message.

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