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Find a Lawyer » Canada Legal Guides » Money, Taxes & IP Canada » CRA Tax Disputes & Audits Canada » CRA Audits on Non-Arm’s Length Transactions Between Family Members in Canada

CRA Audits on Non-Arm’s Length Transactions Between Family Members in Canada

20 Jun 2026 4 min read No comments CRA Tax Disputes & Audits Canada
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Selling property to a family member below Fair Market Value (FMV) is highly risky in Canada. Under Section 69 of the Income Tax Act, the CRA can apply double taxation: they will tax the seller as if the property sold at full market value, but force the buyer to use the artificially low purchase price when they eventually sell it.

Many Canadians want to help their children or siblings get ahead financially. Whether you are selling a rental condo in Vancouver, transferring shares of a family business in Alberta, or gifting a cottage in Ontario, dealing with relatives is considered a “non-arm’s length transaction.” The Canada Revenue Agency (CRA) heavily scrutinizes these deals because they are frequently used to evade capital gains taxes.

Under Section 69 of the Income Tax Act, the CRA demands that all non-arm’s length transactions occur at Fair Market Value (FMV). If you sell a $500,000 house to your daughter for just $1, the CRA will still assess your capital gains tax as if you sold it for $500,000. Worse, your daughter’s “cost base” remains $1. When she sells the house later, she will pay massive taxes on the same value. Defending against this devastating double taxation requires proving the true value of the asset.

Step-by-Step Process to Defend Your Transaction

If the CRA audits your family transaction, they are essentially accusing you of undervaluing the asset. You must mount a solid, evidence-based defence to protect your family’s wealth from aggressive reassessments.

Step 1: Hire a Professional Appraiser Immediately

You cannot simply tell the CRA auditor that “Zillow said it was worth less.” You need a certified professional appraisal. If the transaction happened years ago, you must hire an accredited appraiser to conduct a “retrospective appraisal” to determine exactly what the property or business was worth on the exact date of the transfer.

Step 2: Respond to the Initial Audit Letter

When the CRA sends a proposal letter detailing their intended reassessment, do not ignore it. You usually have 30 days to respond. Submit your professional appraisal and any documentation showing the condition of the asset at the time of sale. If the house required massive repairs, prove it with old invoices, which justifies a lower sale price.

Step 3: Argue the Double Taxation Aspect

If the CRA insists on adjusting the seller’s proceeds to FMV, your tax lawyer can sometimes negotiate to have the buyer’s cost base adjusted upward as well. While Section 69 is inherently punitive, the CRA may allow a protective election or adjustment if you can prove the undervaluation was a genuine mistake and not a deliberate tax evasion scheme.

Step 4: Escalate to a Notice of Objection

If the auditor finalizes the reassessment unfairly, your next step is to file a formal Notice of Objection. This moves your case out of the audit department and into the CRA Appeals division. At this stage, having a tax lawyer is critical to present legal precedents showing your valuation method is accepted under Canadian common law.

Understanding Non-Arm’s Length Tax Impacts

Transaction MethodTax Impact for SellerTax Impact for Buyer (Cost Base)
Sold at Fair Market ValueTaxed on actual profit.Set at the actual purchase price.
Gifted (Sold for $0)Deemed sold at full FMV.Deemed acquired at full FMV (No double tax).
Sold Below FMV (e.g., $1)Deemed sold at full FMV.Stuck at the low purchase price (Massive double tax).

How Much Does a Legal Defence Cost?

Fighting a Section 69 audit is complex, and investing in professional help is usually far cheaper than paying the CRA’s double taxation penalties.

  • Retrospective Real Estate Appraisal: An accredited appraiser typically charges between $500 and $1,500 CAD.
  • Business Valuation: If you transferred family corporate shares, a Chartered Business Valuator (CBV) will cost $3,000 to $10,000+ CAD.
  • Tax Lawyer Fees: Retaining a lawyer to handle the audit response and Notice of Objection generally costs $3,500 to $8,000 CAD depending on the complexity of the family assets.

How Long Does the Process Take?

A non-arm’s length transaction audit is a lengthy ordeal. Gathering historical appraisals and responding to the initial audit can take 2 to 4 months. If you are forced to file a Notice of Objection, expect your file to sit in the CRA Appeals queue for 8 to 14 months before an appeals officer reviews it. Ensuring your initial response is thorough is the best way to speed up a favourable resolution.

Frequently Asked Questions (FAQ)

Does the Principal Residence Exemption apply to family sales?

Yes. If you sell or gift your primary home to a child, the CRA still deems it a sale at Fair Market Value. However, if it qualifies fully as your principal residence for all the years you owned it, the capital gain is exempt from tax, protecting you from the Section 69 penalty.

Can I just cancel the sale if the CRA audits us?

Generally, no. Once the legal title is transferred or the shares are registered, the transaction is complete in the eyes of the law. You cannot simply reverse a legally binding contract retroactively to avoid a CRA tax reassessment.

What defines a ‘non-arm’s length’ relationship?

Under the Income Tax Act, related persons (parents, children, siblings, spouses, and grandparents) are automatically deemed to deal with each other at non-arm’s length. Unrelated people can also be caught if they act in concert to manipulate a price.

Is it better to just gift the property instead of selling it cheap?

From a strict tax perspective, yes. Gifting a property triggers a deemed disposition at Fair Market Value for the seller, but it also gives the buyer a cost base equal to Fair Market Value, completely avoiding the catastrophic double taxation trap of selling it for $1.

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