The HST Risk Hiding Inside a Hamilton Restaurant Purchase

The situation

Natalia and Kenneth had spent thirty years building and eventually selling a business of their own, and retirement had not suited them for long. When a well-established restaurant in Hamilton came up for sale, they saw a chance to own something again — not to run the floor themselves, but to buy the corporation that held the business, keep the existing staff and manager in place, and collect the income as a passive investment.

The seller, Winnie, had operated the restaurant for twelve years and was ready to retire fully. The deal on the table was a share purchase: Natalia and Kenneth's holding company would buy all the shares of Winnie's corporation, taking over the business exactly as it stood, including its bank accounts, leases, equipment, and its history with the Canada Revenue Agency. A share purchase is often the simpler route for a seller, since it lets them exit cleanly and can come with more favourable tax treatment on their side. For a buyer, though, it means stepping into the corporation's shoes entirely — including any liabilities that have not yet surfaced.

Natalia and Kenneth retained our team to run the tax and legal due diligence before they signed anything binding. It is a step many buyers are tempted to shorten, especially when the business looks healthy on paper and the relationship with the seller is friendly. In this case, shortening it would have been a costly mistake.

What the review found

Restaurants are audited by the Canada Revenue Agency more often than most small businesses, largely because cash transactions make it easier for reported sales to drift from actual sales, whether by accident or design. When the agency suspects underreporting, it does not need to catch every missing transaction. It can use an indirect verification of income method — essentially building a projection of what sales should have been, based on food and beverage purchase records, standard portion sizes, and typical waste or spoilage rates, and then comparing that projection to what was actually reported.

Our review of Winnie's corporate records found the ingredients for exactly that kind of projection to go badly for the business. The bookkeeping showed HST remittances that had been estimated at year-end from rough sales percentages rather than reconciled against the restaurant's point-of-sale system on a monthly basis. Purchase invoices for food and liquor, when compared against reported revenue using standard industry cost ratios, suggested a gap: the volume of inventory being purchased did not comfortably support the level of sales being reported to the CRA.

None of this proved wrongdoing. Inventory ratios vary restaurant to restaurant, and a poorly kept set of books is not the same thing as hidden income. But it is precisely the pattern the CRA's audit selection process is built to flag, and precisely the pattern its projection methodology is built to convert into a large assessment. Working with the figures available, we estimated that if the agency's indirect verification approach found what our review suggested it might, it could impute unreported sales in the range of roughly $2.5 to $3 million across the three most recent fiscal years — translating to additional HST in the range of roughly $325,000 to $390,000, before interest and penalties. Add arrears interest accumulated since those years and a possible gross negligence penalty, which can add up to half of the tax found owing, and the total exposure could run from roughly $400,000 at the low end to nearly $900,000 if the agency took the harshest view available to it.

Critically, this was not a hypothetical the corporation might face someday. It was a liability that already existed inside the company, waiting for an audit to surface it. If the share purchase closed as structured, that liability would transfer with the shares — becoming, in effect, Natalia and Kenneth's problem the moment the deal completed, even though the underlying conduct happened entirely before they owned a single share.

What we did

1. Quantified the exposure before raising it. Before bringing anything to the negotiating table, we built a defensible range for the potential assessment, using the same purchase-to-sales ratio approach a CRA auditor would likely use. Vague concern rarely moves a deal; a specific, well-supported number does.
2. Explained the share-versus-asset distinction to the clients. Natalia and Kenneth understood restaurants, but not corporate tax mechanics. We walked them through why a share purchase absorbs a target company's full tax history, while an asset purchase — buying the equipment, lease, licences, and goodwill directly, rather than the corporation that holds them — generally leaves historical tax liabilities behind with the seller's corporation.
3. Recommended restructuring the transaction. We advised moving from a share purchase to an asset purchase. This meant Natalia and Kenneth's holding company would acquire the restaurant's operating assets and take on a fresh corporate identity for the business going forward, while Winnie's existing corporation — and whatever the CRA might eventually find inside it — stayed with Winnie.
4. Negotiated the change with the seller's side. Restructuring a deal this late tends to raise a seller's guard, so we framed it around the tax mechanics rather than any accusation, and proposed a purchase price adjustment to reflect the different tax treatment an asset sale creates for a seller. Winnie's advisors agreed once it was clear the alternative was walking away entirely.
5. Advised Winnie's side, through her own counsel, to consider a voluntary disclosure. A voluntary disclosure allows a taxpayer to correct past filing errors before the CRA opens an audit, often reducing the penalties that would otherwise apply. We could not act for Winnie, but flagging the exposure through her lawyer meant she could address it as the outgoing owner of the corporation, on her own terms and before any audit began, rather than as a surprise months later.
6. Closed the asset purchase on a revised timeline. The restructured deal took several additional weeks to document — new agreements for the assets, the lease assignment, and the employees — but closed with Natalia and Kenneth owning the restaurant's operations free of the corporation that carried the filing history.

The outcome

Natalia and Kenneth now own and lease out the restaurant's operations through a newly formed holding structure, with no connection to Winnie's original corporation or its HST filing history. If the CRA eventually selects that corporation for audit — and the pattern in its books made that a real possibility, not a remote one — any assessment lands on a company Natalia and Kenneth never owned. The roughly $400,000 to $900,000 in potential exposure identified during due diligence never became theirs to pay, negotiate down, or litigate.

The restructuring did cost them something: a longer closing timeline, additional legal work to rebuild the transaction around an asset sale, and a price adjustment negotiated to reflect Winnie's different tax position on an asset deal versus a share deal. Winnie, for her part, retained her corporation along with whatever the CRA might eventually find in it, and was advised to have her own accountant review the historical filings promptly rather than wait for an audit letter to arrive.

No CRA audit has been opened against either party as of this writing. That is, in a sense, the entire point: the risk was identified and priced while it was still avoidable, rather than discovered afterward as an assessment neither side saw coming.

What you can learn from this