Related-Party Transactions in Canada: Rules Every Private Corporation Should Know

A related-party transaction is any deal between a corporation and someone who does not deal with it at arm's length. For a private corporation, that circle is wider than most owners assume. It typically includes:

• Shareholders, directors, and officers of the corporation
• Their family members — spouses, children, parents, and siblings
• Sister companies under common ownership, holding companies, and subsidiaries
• Corporations controlled by any of the people above
• Family trusts and other entities connected to the ownership group

The transactions themselves are usually ordinary commercial dealings: selling a vehicle to a shareholder, leasing a building owned by a director's spouse, paying management fees to a holding company, lending surplus cash to a sister company, or transferring intellectual property within a corporate group.

None of this is improper. Related-party transactions are a normal — and often essential — part of operating a private corporate group in Canada. Holding company structures, family businesses, and succession plans all depend on them.

The issue is that the parties are not negotiating against each other the way strangers would, so there is no market tension keeping the price honest. Tax law, corporate law, and creditor protection law all respond to that gap — and each puts the burden on you to show the deal would have made sense between strangers.

Related-party transactions are examined more closely than arm's-length deals by three audiences, each with its own remedies.

The Canada Revenue Agency. The federal Income Tax Act contains rules aimed squarely at non-arm's-length dealings. If a corporation confers a benefit on a shareholder — selling an asset below value, paying personal expenses, or providing free use of corporate property — the CRA can tax that benefit in the shareholder's hands, often with no offsetting deduction for the corporation. Where property changes hands at the wrong price, the Act can deem one side of the transaction to have occurred at fair market value while leaving the other side unadjusted — which can produce double taxation. Attribution rules can push income earned on property transferred to a spouse or minor child back to the transferor, undoing informal income splitting. And where the related party is a non-resident — a foreign parent or sister company — Canada's transfer pricing rules require cross-border transactions to be priced on arm's-length terms and supported by contemporaneous documentation.

Creditors. If a corporation moves assets to related parties for less than fair value and later cannot pay its debts, those transfers can be challenged under the federal Bankruptcy and Insolvency Act and provincial legislation dealing with fraudulent conveyances and preferences. Trustees and creditors can ask a court to unwind the transaction or recover the value that left the company.

Minority shareholders. Self-dealing by the people in control is classic ground for an oppression claim under the Ontario Business Corporations Act (OBCA) and the Canada Business Corporations Act (CBCA). A majority shareholder who directs corporate value to their own holding company, family members, or side ventures on favourable terms invites exactly this kind of litigation.

Every defensible related-party transaction shares one feature: it is priced at fair market value — the price a willing, informed buyer would pay a willing, informed seller in an open market, with neither under pressure to transact.

Because related parties cannot rely on genuine negotiation to establish that price, the evidence you keep does the work instead. Depending on the size of the transaction, that evidence may include:

• An independent appraisal or professional valuation for real estate, business assets, or shares
• Comparable market data for rent, interest rates, royalties, and service fees
• Written agreements signed before or at the time of the transaction — not reconstructed afterward
• A record of how the price was determined and who determined it

Timing matters as much as content. A valuation obtained before the deal closes is persuasive; a memo drafted after the CRA sends a query letter is not. If the transaction is ever tested — in an audit, an insolvency, or a shareholder dispute — the question will be what the parties knew and documented at the time, not what they can assemble years later.

Corporate law adds its own layer of discipline. Under both the OBCA and the CBCA, a director or officer who has a material interest in a contract or transaction with the corporation must disclose that interest to the board and, in most circumstances, abstain from voting on its approval. Following these conflict-of-interest procedures helps protect the transaction from being set aside — and helps protect the interested director from personal exposure.

In practice, a well-run approval process looks like this:

1. 1.The interested director or officer discloses the nature and extent of their interest in writing or on the record at a board meeting
2. 2.The disinterested directors consider the transaction, including the basis for the price
3. 3.The interested party abstains from the vote where required
4. 4.A resolution is passed reciting the key terms and the fair market value support
5. 5.The resolution and supporting documents are filed in the corporate minute book

Shareholder agreements frequently add a further requirement: related-party transactions are a common entry on the list of reserved matters requiring supermajority or unanimous shareholder approval, and skipping a required approval is a breach of contract on top of everything else. Lender covenants can impose similar restrictions on payments to related parties — worth checking before money moves.

Two related-party arrangements come up constantly in private corporate groups, and both deserve particular care.

Intercompany and shareholder loans. Moving cash between an operating company, a holding company, and shareholders is routine — but undocumented loans are a standing invitation to trouble. The Income Tax Act can include an unpaid shareholder loan in the borrower's personal income if it is not repaid within the timeframes the Act sets out, and can impute a taxable interest benefit on low-interest or interest-free loans. Every intercompany or shareholder loan should be recorded in a written promissory note or loan agreement setting out the principal, interest rate, repayment terms, and any security. Repayments should actually happen and be traceable through the bank records — a loan that only ever grows starts to look like something else.

Management fees. Fees paid by one related company to another are deductible only if services were genuinely rendered and the amount is reasonable relative to what was provided. The CRA routinely challenges management fees that appear designed simply to shift income to a company with losses or a lower rate of tax. Support the arrangement with a written management services agreement, regular invoices, and evidence of the actual work performed — meeting records, deliverables, or time records. A round number that changes each year to match one company's profit is precisely the pattern auditors are trained to notice.

Most related-party problems are created in five minutes and take years to fix. A short discipline applied before each transaction avoids nearly all of them:

1. 1.Identify the relationship honestly — if there is any common ownership, family connection, or shared control, treat the deal as related-party from the outset
2. 2.Price at fair market value and keep the support: an appraisal, comparables, or a documented rationale proportionate to the size of the deal
3. 3.Paper the transaction before it happens, with written agreements signed by each entity in its own capacity
4. 4.Run the conflict-disclosure and board-approval process, and file the resolutions in the minute book
5. 5.Check your shareholder agreement and loan covenants for approval requirements or restrictions
6. 6.Report the transaction consistently on both parties' tax filings — mismatched treatment between related companies is an audit flag in itself
7. 7.Get professional advice before large, unusual, or cross-border transactions, ideally from your lawyer and accountant working together

At Lamba Law, we regularly help business owners and corporate groups structure, document, and approve related-party transactions — from intercompany loans and management fees to asset transfers within a family enterprise — so the file stands up when a lender, a buyer, the CRA, or a co-shareholder eventually looks at it. The cost of doing it properly is modest; the cost of unwinding a challenged transaction rarely is.