The standoff: the two sides want opposite deals, for good reasons
This is not a technicality to leave to the lawyers late in the deal; it is the single decision that most changes what you keep. In a share sale, the buyer purchases your shares of the corporation, and the corporation itself, with its contracts, staff, assets, tax accounts and history, carries on unchanged under a new owner. In an asset sale, your corporation sells the business piece by piece, the equipment, inventory, goodwill, name and customer lists, and you are left owning a corporation full of cash instead of a business.
Each side's preference follows directly from the tax mechanics. The seller's best outcome usually lives in a share sale, and the buyer's usually lives in an asset sale, which means most negotiations start with a structural disagreement that has to be priced, not argued, into resolution. Understanding both columns of that trade is what lets you negotiate it rather than concede it.
The share sale, from your side of the table
A share sale is taxed once, in your hands, as a capital gain, and that single layer is its power. Half of a capital gain is taxable, so even without any exemption the effective rate on share proceeds is roughly half your marginal rate. With the exemption, the result gets dramatically better: if your shares are qualified small business corporation shares, up to 1.25 million dollars of gain per person can be sheltered entirely, and with planning, family members who hold qualifying shares can each have their own. Whether your shares qualify turns on tests about what the corporation owns, measured over the 24 months before the sale, which is why surplus cash and investments are dealt with early through corporate purification rather than discovered as a problem in diligence.
The share route is also the cleaner exit. You sell the whole corporation: its contracts, licences, employees and obligations go with it, there is no second step of winding up a company afterwards, and no corporate-level tax event at all. The price of that cleanliness is borne by the buyer, who inherits the corporation's entire history, every filing position, every past payroll and HST return, every liability that has not surfaced yet. Buyers accept that inheritance only after deep due diligence and only with contractual protection, so expect a share deal to come with detailed representations, tax indemnities and often a holdback; the file their team will comb through is described in what tax information a buyer will request.
The asset sale, from your side of the table
An asset sale is taxed twice before the money reaches you, and the arithmetic of those two layers is what you are comparing against the share route. The first layer lands inside the corporation. Depreciable assets sold above their remaining tax cost trigger recapture of the capital cost allowance claimed over the years, taxed as business income. Goodwill, often the largest component of a healthy business's price, and other capital assets produce gains of which half is taxable to the corporation.
The second layer lands when you extract the proceeds, and here the system gives some relief. The untaxed half of the corporation's capital gains is credited to its capital dividend account and can be paid to you completely tax-free, and part of the corporate tax on investment-type income is refundable when taxable dividends are paid. Those mechanisms narrow the gap between the routes, but for most owner-managed businesses they do not close it: dollar for dollar of headline price, an asset sale generally leaves the seller with meaningfully less after all layers than an exemption-sheltered share sale, and it leaves you with a corporation still to manage or wind up.
The corporation that remains is not necessarily a burden, and for some owners it is the plan: the after-tax proceeds stay invested inside the company as a personal holding company, deferring the second layer of tax until the money is actually needed. But that is a choice you should make on purpose, with the extraction sequence, capital dividend elections and wind-up timing designed, not a default you discover after closing.
| Question | Share sale | Asset sale |
|---|---|---|
| What the buyer acquires | Your shares; the corporation continues intact | Selected assets; your corporation keeps the rest and the history |
| How you are taxed | Once, personally, as a capital gain | Corporate tax first, then tax on extracting the proceeds |
| The capital gains exemption | Available if the shares qualify, up to 1.25 million dollars per person | Not available; the corporation is the seller |
| Liabilities and tax history | Travel with the corporation to the buyer | Stay behind with your corporation |
| The buyer's future deductions | Inherits historic tax cost; nothing steps up | Fresh depreciable cost on assets and goodwill at the price paid |
| HST on the transaction | None on a sale of shares | Applies, but usually relieved by the going-concern election |
| Contracts, leases and licences | Stay in place, subject to change-of-control clauses | Must be assigned, often needing landlord and counterparty consents |
| Employees | Employment continues undisturbed | Buyer offers new employment; service history follows for standards purposes |
| What is left for you afterwards | Proceeds, personally | A corporation holding proceeds, to run as a holdco or wind up |
Beyond tax: HST, contracts, employees and the buyer's bank
The non-tax mechanics push the two routes apart almost as much as the tax does. A share sale involves no HST at all, and the business's contracts, lease and licences simply continue, although many agreements contain change-of-control clauses that quietly require consent anyway, so the diligence list overlaps more than owners expect. An asset sale is messier by nature: HST applies to the transfer unless the parties jointly elect under the going-concern rules, which is routine but must actually be done correctly, and every material contract, the premises lease above all, has to be assigned with the counterparty's consent. A landlord's cooperation can become the critical path of an entire asset deal.
Employees follow the structure too. In a share sale nothing changes for them legally, because their employer is the same corporation it always was. In an asset sale the buyer offers employment to the team it wants, and employment standards treat service as continuous for the people who move, while obligations to anyone not offered a role stay behind with your corporation and belong in the price discussion, not as a surprise after closing.
Then there is the buyer's financing, which sellers overlook and should not. Most buyers of owner-managed businesses borrow part of the price, lenders take security more comfortably over hard assets than over shares, and the buyer's depreciation on stepped-up assets supports their loan servicing. A buyer's financing constraints can push a deal toward assets regardless of tax preference, and a seller who understands that pressure can trade against it; the same lender logic that shapes these deals runs through our business financing support work on both sides of purchases.
The price bridge and the hybrid middle
Because the two routes split their tax burden differently, the same headline price is not the same deal, and the gap gets negotiated as price. A buyer who insists on assets is asking you to absorb two layers of tax and forgo the exemption, and the standard response is a higher price on the asset route than the share route, sized so your after-tax position converges. Running that after-tax comparison across both structures, before negotiations harden, is the single most useful piece of analysis in the whole sale, because it converts a structural argument into a number both sides can trade over.
Between the poles sits a family of hybrid structures that capture part of each side's goal: transactions arranged so the seller crystallizes the exemption on shares while the buyer still achieves stepped-up cost on key assets. They are real and used regularly in mid-market deals, but they are sequenced reorganizations with their own tax risks and they cannot be improvised at the eleventh hour, which is one more reason the structure conversation belongs at the start of a sale process. The runway question, and everything else that should be settled before a buyer appears, is mapped in how many years before a sale you should start planning.
What changes the answer, and how we run the decision
Which route you should fight for comes down to six facts about your situation:
- Whether your shares qualify for the exemption. Qualified shares make the share route powerfully attractive; offside shares shrink the gap and weaken your negotiating position.
- The asset mix and accrued recapture. Heavy claimed depreciation means an asset sale triggers more recapture, widening the difference between routes.
- Who the buyer is. Strategic and corporate buyers accept share deals with diligence; first-time individual buyers and their lenders often insist on assets.
- The corporation's history. Clean filings and a tidy minute book make your shares easier to buy; a complicated past pushes buyers toward assets or toward indemnities you may not want to give.
- The size of the deal. Smaller transactions default to assets for simplicity; the larger the price, the more the exemption and the second tax layer dominate the outcome.
- Your plans for the proceeds. If you would reinvest corporately anyway, the asset route's leftover holdco is less of a drawback and the gap narrows.
Family transitions deserve their own note: when the buyer is your child or their corporation, specific rules now allow genuine intergenerational share transfers to be taxed as capital gains with access to the exemption, subject to real conditions about control passing and continuing involvement, so the share route is very much alive inside families, but only when the transfer is structured to meet those conditions.
We run this decision for owners across Mississauga and the GTA as part of sale engagements under Strategic Projects: the after-tax comparison of both routes on your actual numbers, the exemption status check, the statement preparation buyers and lenders will lean on, covered in how to prepare financial statements for a business sale, and the negotiation support alongside your lawyer. As a CPA firm for buying, selling and transitioning businesses in Ontario, our advice starts from one habit: decide the structure you want before the buyer decides it for you. A free 15-minute discovery call is enough to see which route your facts favour.
