You’re looking to buy a business or sell one, and suddenly you’re staring down a decision that feels pretty abstract: Do we structure this as a share purchase or an asset purchase?
I get this question all the time at Onley Law. And honestly, it’s one of the most consequential structural decisions in any M&A deal. Because here’s the thing—this choice doesn’t just affect legal complexity. It affects your tax bill, your liability exposure, your access to contracts, and whether your employees even know they have a new boss.
In this guide, I’m going to walk you through what a share purchase vs asset purchase in Canada actually means, why the difference matters, and how to figure out which one makes sense for your situation. Whether you’re a buyer trying to minimize risk or a seller trying to maximize proceeds, understanding these structures is non-negotiable.
What Is a Share Purchase? (Buying the Whole Entity)
A share purchase is exactly what it sounds like: you’re buying shares. Specifically, you’re buying enough shares to own and control the target company.
When you do a share purchase, you’re not buying the company’s assets directly. Instead, you’re buying the legal entity itself—all of its assets, all of its liabilities, all of its contracts, its IP, its reputation, everything. The company stays intact. The ownership just changes hands.
Think of it like buying a house. When you buy a house, you get the building, the land, everything inside it, and also the mortgage attached to it. The house doesn’t disappear into a legal void—it just has a new owner. Same concept here.
From a legal standpoint, after closing, the target company is still exactly what it was. It still has its old bank accounts (now with a new owner), its old contracts (now with a new owner), and its old employees (now with a new owner). Nothing terminates or restarts. It’s continuity.
Why sellers love share purchases: You sell the whole business, and you’re done. No complicated asset-by-asset transfer. The buyer is buying you—meaning they’re accepting all the assets AND all the baggage.
Why buyers need to be careful with share purchases: You inherit everything. Every warranty that’s been breached, every customer relationship that’s rocky, every lease you didn’t know about—it’s all yours now. That’s why due diligence in a share purchase is so intensive.
What Is an Asset Purchase? (Buying Specific Assets, Leaving the Shell Behind)
An asset purchase is the opposite strategy. Instead of buying the company itself, you’re buying its assets—and you’re selective about which ones.
Here’s how it typically works: You identify the specific assets you want (the customer list, the IP, the equipment, maybe the lease). You negotiate with the seller to buy those particular items at an agreed-upon price. The seller’s old company is left behind, usually with a shell of whatever assets weren’t purchased.
This is more transactional. You’re not buying a legal entity—you’re buying stuff. Inventory, equipment, customer contracts, whatever has value to you.
Why buyers love asset purchases: You have control over what you’re buying. You don’t want their outdated office equipment? Don’t buy it. You don’t want to assume their warranty obligations? Leave them behind. You’re cherry-picking the good parts and letting the seller deal with whatever’s left.
Why sellers can dislike asset purchases: The seller is left holding the bag. If you bought all the good assets but left behind employee liabilities or pending litigation, the old company still has to deal with that. Plus, asset sales often trigger worse tax consequences for sellers.
Key Differences Between Share Purchase vs Asset Purchase in Canada
Tax Treatment: Where the Biggest Gap Usually Is
Let’s talk money, because this is where most deals actually get decided.
For the buyer: In a share purchase, you don’t get to “step up” the tax basis of the assets. If the company bought equipment for $100,000 and it’s now worth $200,000, you’re buying it at its original book value for tax purposes. This can hurt you long-term because you can’t depreciate it as aggressively. In an asset purchase, the assets come to you at their fair market value. So you can depreciate or amortize them more aggressively going forward. Over time, this produces significant tax savings, especially if you’re buying intangible assets (IP, customer relationships, etc.).
For the seller: In a share purchase, in most cases, you get capital gains treatment (better tax outcome). The owner pays tax on the gain, and 50% of that gain is taxable. In an asset purchase, it’s much uglier. Not only do you get capital gains tax, but the CRA wants some of that depreciation back (recapture). Plus, assets like inventory or accounts receivable might be taxed as regular income, not capital gains. A seller can end up with a significantly higher tax bill.
This is why sellers usually want a share structure and buyers want an asset structure. The buyer saves money long-term through better tax deductions. The seller saves money immediately through better tax treatment on the sale.
Liability: What You Actually Inherit
This is the biggest risk consideration for buyers.
In a share purchase: You inherit all liabilities. Some are obvious (bank debt, supplier payables). Others aren’t. Pending lawsuits? You inherit them. Environmental issues at a property? Yours. This is why share purchase due diligence is so comprehensive.
In an asset purchase: You only assume the liabilities you explicitly agree to assume. Usually, that’s just customer contracts and maybe some operational debts. You don’t touch the seller’s shareholder disputes, pending litigation, or historical environmental issues.
From a buyer’s perspective, asset purchases are cleaner. You know exactly what you’re getting into.
Contract Assignment and Customer Relationships
In a share purchase: Every contract automatically stays in place. Your customer contracts, vendor agreements, leases, all of it—same counterparty, same terms. The only thing that changed is the legal owner.
In an asset purchase: You need to actively “assign” contracts to yourself. And some contracts have a “change of control” clause that says the counterparty has the right to terminate if ownership changes. This can be a real problem if you’re relying on those customer relationships.
That’s why you need to review all material contracts in an asset purchase and either get assignment consents in advance or negotiate with customers directly to confirm continuity.
Employee Treatment
In a share purchase: Employees technically don’t have new employers—they have new ownership. Their employment agreements stay the same, their tenure is continuous, and their benefits carry over.
In an asset purchase: You’re the new employer. Technically, you’re not hiring the old company’s employees—you’re hiring them fresh. This creates termination/severance questions for the old company and hiring decisions for you.
In practice, many asset purchases are structured so that the buyer immediately hires the key employees the seller lays off. But that costs time, involves legal compliance, and risks losing institutional knowledge.
When to Choose Share Purchase vs Asset Purchase: Buyer and Seller Perspectives
From a Buyer’s Perspective
Choose an asset purchase when: you want tax deduction benefits (step up basis and depreciate faster), you want to avoid unknown liabilities, you only want certain parts of the business, or you want to restructure employment.
Choose a share purchase when: the target has strong customer contracts with change-of-control protection, you want operational continuity, the tax difference is minimal, or you value simplicity.
From a Seller’s Perspective
Choose a share purchase when: you want better tax treatment (capital gains), you want simplicity (transfer the whole company and you’re done), or you want to minimize negotiations about which liabilities the buyer assumes.
Choose an asset purchase when: you want to structure a partial transition, you’re willing to negotiate a higher purchase price, or you want to clean up the balance sheet.
Hybrid Structures: Why Most Real Deals Are Somewhere in the Middle
Here’s what you’ll notice if you work on enough deals: Most of them aren’t pure share purchases or pure asset purchases. They’re hybrids.
A common structure: The buyer purchases 100% of the shares, but with a representation and warranty insurance policy (or escrow holdback) to protect against undisclosed liabilities. This gives the buyer some protection that normally only comes with an asset purchase, but keeps the operational simplicity of a share structure.
Another hybrid: The buyer purchases the shares, but the seller retains certain liabilities (like a specific lawsuit or environmental remediation obligation). Legally, the share transfer is still full, but contractually, the seller is keeping certain risks.
These hybrids exist because the pure structures are too rigid for real transactions. Buyers and sellers need flexibility, and that’s where lawyers actually earn their retainer.
Real-World Scenarios: How Share Purchase vs Asset Purchase Plays Out in Canada
Scenario 1: Acquirer wants a tech startup. A successful SaaS company with $2M ARR is being acquired. It has strong customer contracts, good IP, three key employees, and about $300K in debt. The buyer decides on a share purchase because the customer contracts have change-of-control clauses and they don’t want the hassle of renegotiating, keeping the employees intact is crucial, and the debt can be refinanced easily.
Scenario 2: Acquirer wants specific assets. A marketing agency wants to buy a competitor’s client list and IP, but doesn’t want the competitor’s offices, equipment, or full headcount. They structure it as an asset purchase: they buy the client contracts, the proprietary software, and the IP, and they hire five of the twelve employees.
Scenario 3: Founder retention matters. A bootstrapped software company is being acquired, but the founder is staying on as CTO. They structure it as a share purchase with a small equity rollover—the founder keeps 5% of the shares in the acquirer. This keeps the founder motivated and simplifies the legal structure.
Legal Costs and Timeline
Share purchase agreements: Typically 4-8 weeks to close, $15K-$40K in legal fees for the buyer (depending on deal size), similar range for the seller, plus accountant fees for tax structuring ($3K-$10K).
Asset purchase agreements: Typically 4-8 weeks to close, $20K-$50K in legal fees (more negotiation, asset allocation, potential assignment issues), similar accountant costs.
Both are similar in cost. The difference is usually in where the money gets spent—due diligence vs. negotiation and drafting.
FAQ: Share Purchase vs Asset Purchase in Canada
Q: Can I change my mind after closing?
A: Essentially no. Once you’ve closed, restructuring is possible but complicated, expensive, and might have tax consequences. Get the structure right before closing.
Q: Does the CRA care which structure we use?
A: Absolutely. The CRA reviews acquisitions to make sure they’re not tax-motivated schemes. Work with advisors to ensure CRA comfort with the structure.
Q: What if the buyer and seller want different things?
A: That’s normal. The resolution is usually that the buyer pays a premium to get the asset structure, or they compromise with a hybrid. This is one of the biggest negotiation items in most deals.
Q: Can we do an asset purchase without the employees?
A: Legally, yes. Practically, it’s risky. If the employees were key to the business, not hiring them means losing institutional knowledge and client relationships.
Q: What about HST/GST implications?
A: Good question that many people miss. Share purchases are usually GST-exempt. Asset purchases might trigger GST on the asset transfer, adding 5-10% to the effective cost. Always factor this into the math.
Q: How much due diligence is really necessary?
A: It depends on deal size and complexity. A $1M acquisition might get a week. A $10M acquisition might get two months. The threshold: how bad would it be if we missed something?
Q: Can we structure this as part share, part asset?
A: Yes. You can buy shares but have the seller retain certain liabilities, or buy assets but keep certain contracts. There’s flexibility, but each variation creates complexity and potential tax issues.
Ready to Structure Your Acquisition the Right Way?
If you’re looking at a business acquisition or sale in Canada and want to make sure you’re using the right structure for your situation, let’s talk. I work with startups and growing businesses on M&A strategy, and I can walk you through the trade-offs specific to your deal.
Book a free consultation with Onley Law to discuss your acquisition or sale structure. Whether you’re a buyer minimizing risk or a seller optimizing proceeds, we’ll help you make the right choice.