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Undisclosed Related-Party Transactions: A Red Flag for Ontario Business Buyers

Learn why deals between an Ontario business and its owner's family or affiliated companies can distort the numbers a buyer relies on, and how to spot them.

Buying & Selling a Business6 min readTSLBy the Treadstone Law team · OntarioUpdated 2026-07
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Key takeaways
  • Broadly, it's any dealing between the business and someone connected to its owner — not a genuine outside party.
  • A buyer typically prices a business off its historical earnings, adjusted ("normalized") for anything that wouldn't continue under new ownership.

When you review a target business's financial statements, you naturally assume the revenue and expenses reflect arm's-length dealing — a fair market rent, a market-rate management fee, a genuine supplier relationship. Often that assumption is wrong. Related-party transactions — arrangements between the business and its owner, the owner's family, or a company the owner also controls — can quietly reshape what the numbers actually mean.

This isn't necessarily dishonest. Many owners run related-party arrangements for perfectly ordinary reasons: renting a building they personally own to their own company, or paying a family member a salary for real work. The problem for a buyer is that these arrangements are rarely priced the way an outside party would price them, and once you buy the business, you may not get to keep the same deal.

This article explains why related-party transactions matter, the forms they commonly take, and how to find them before you sign a purchase agreement.

What Counts as a Related-Party Transaction?

Broadly, it's any dealing between the business and someone connected to its owner — not a genuine outside party. Common examples include:

None of these are illegal. What matters to a buyer is whether the price attached to each one reflects what an unrelated party would actually charge or accept.

Why These Deals Distort the Numbers You're Relying On

A buyer typically prices a business off its historical earnings, adjusted ("normalized") for anything that wouldn't continue under new ownership. Related-party transactions are one of the most common sources of adjustment — and one of the easiest to get wrong if you take the financial statements at face value.

Common Forms of Related-Party Dealing

ArrangementWhat to Check
Related-party leaseIs the rent at, above, or below fair market rate for comparable space?
Management or consulting feesIs the fee for real, ongoing services, and is it market-rate?
Shareholder loans (either direction)What's the balance, and is it being settled at or before closing?
Family members on payrollDo their duties and pay match an arm's-length hire for the same role?
Inter-company purchases or salesWould an unrelated supplier or customer accept the same pricing and terms?

How to Investigate This During Due Diligence

  1. Ask directly, early. Have your accountant ask the seller (or the seller's accountant) to identify every related-party arrangement in writing — don't rely on finding them buried in the financial statements.
  2. Compare to market. For a related-party lease or fee, get a rough sense of what an unrelated landlord or contractor would actually charge for the same thing.
  3. Trace the general ledger. Look for recurring payments to entities or individuals with the same address, surname, or ownership as the seller.
  4. Ask what happens at closing. Will the related-party lease continue under a new arm's-length agreement, or does it end with the sale? Will shareholder loans be repaid, forgiven, or assumed?
  5. Rebuild the earnings picture. Work with your accountant to recalculate what the business would actually earn once related-party arrangements are replaced with market terms — this is the number that should drive your offer.

Protecting Yourself in the Purchase Agreement

Once related-party transactions are identified, they belong in the deal documents, not just in a conversation:

Frequently asked questions

Is it always a red flag if a business has related-party transactions?

Not automatically — many small and family-owned businesses have them for legitimate reasons. The concern isn't that they exist, but whether they're disclosed, priced fairly, and accounted for correctly in the numbers you're relying on.

What if the seller says the related-party lease will just continue after closing?

Get that in writing, and have your lawyer review the actual lease terms rather than relying on the seller's description. A verbal understanding between a seller and their own affiliated landlord is not the same as an enforceable agreement with a new, unrelated owner.

Can related-party transactions affect financing for the purchase?

Yes. Lenders reviewing a business acquisition typically want to see normalized earnings that strip out related-party distortions, since they're financing the business's real, ongoing cash flow — not arrangements that may not survive the sale.

Who typically catches these issues — the lawyer or the accountant?

Both, working together. An accountant is usually best placed to spot pricing distortions in the financial statements, while a lawyer builds the protections — disclosure, representations, and closing conditions — into the purchase agreement itself.

This article is general information, not legal advice. Reading it does not create a lawyer-client relationship. Ontario 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 licensed Ontario lawyer. Treadstone Law is licensed by the Law Society of Ontario — reach us at 1-844-900-1070 or start a file online.

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