The tax implications of selling a business in Canada
The same price can produce tax bills several hundred thousand dollars apart. This is the map of what is taxed and when, with the two big decisions marked.
The tax implications of selling a business in Canada turn first on whether you sell shares or assets. On a sale of private company shares half the gain is taxed, and qualifying shares can shelter up to $1,275,000 in 2026. An asset sale is taxed twice, and the way the price is paid sets when the tax falls due.
The map
The tax implications of selling a business in Canada depend first on whether you sell shares or assets, and then on whether the shares qualify for the lifetime capital gains exemption. How the price is paid decides when the tax falls due. Everything else is detail on those three.
A share sale
You sell the shares of your private company, and the gain is the price less what the shares cost you and less what you spent to sell them. The CRA’s capital gains guide counts legal fees and commissions among those selling costs. One half of the gain is included in your income, taxed at your marginal rate and reported on Schedule 3 of your return. The 2024 proposal to raise that share to two thirds was cancelled in March 2025, as selling a business in Canada in 2026 records.
Take an illustration of a $2 million gain. Half of it, $1 million, is taxable, and at a combined rate of 50 percent, assumed here for round numbers, the tax is $500,000. Your province and your other income set the actual rate. At the top bracket a capital gain is taxed at 24 percent in Alberta, against about 26.76 percent in Ontario.
If the shares are qualified small business corporation shares, the lifetime capital gains exemption removes up to $1,275,000 of the gain in 2026. On the same $2 million gain, that leaves $725,000 of gain, $362,500 taxable, and $181,250 of tax at the assumed rate. The exemption is worth $318,750 to one owner in this illustration, and more where a spouse or adult child also owns qualifying shares. A sale to your own children’s company has rules of its own, set out in selling a business to your children.
An asset sale
Your corporation sells its assets and the tax is paid twice: once by the corporation on what it sells, and again by you when you take the money out.
- Equipment and vehicles. Anything sold for more than its depreciated value produces recapture, which is taxed as ordinary income to the corporation.
- Goodwill. The value of the business beyond its assets is taxed to the corporation as a capital gain, at the one half inclusion rate.
- Inventory. The corporation’s profit on inventory is taxed as ordinary income.
- Then the dividend. What is left in the corporation comes to you as a dividend, taxed again in your hands, at rates that depend on the type of dividend and the province. The untaxed half of a capital gain can come out as a capital dividend, which the CRA’s folio on capital dividends describes as tax free to Canadian resident shareholders.
The combined result is usually higher than a share sale, sometimes by a wide margin, and the exemption stays out of reach. That is the whole reason sellers prefer shares and buyers prefer assets, which Share sale or asset sale covers.
The Productivity Mega Deduction, proposed on September 15, 2026, would let a buyer write off most equipment in the first year. It makes the split of an asset price between equipment and goodwill a harder negotiation, as the piece on the mega deduction in an asset sale explains.
GST and HST
On an asset sale, the buyer and seller can usually elect jointly on Form GST44 to take the sale of the business outside GST and HST, where all or substantially all of the assets needed to carry it on are being sold. A share sale is exempt from GST and HST. Your accountant will handle the election; the point is to know it exists so the tax stays off the closing statement from the start. In British Columbia the buyer of assets also pays 7 percent PST on equipment, and in Quebec a joint election on FP-2044-V can set the QST aside with the GST, as the guides for British Columbia and Quebec explain.
How the price is paid changes when the tax is paid
- Cash at closing is taxed in the year of the sale.
- A vendor note, paid over years, may allow a reserve that spreads the gain over up to five years, so the tax follows the cash. The rules are specific and the reserve has a maximum, as the piece on vendor financing sets out.
- An earnout is taxed under its own rules, which depend on how it is structured, and the wrong structure can turn a capital gain into income. The piece on earnouts covers how they are built.
Alternative minimum tax
Alternative minimum tax is a separate calculation that limits how much certain deductions, including the capital gains exemption, can reduce the bill in a single year. In the year of a large sale it can apply and produce a tax liability even where the exemption covers the gain. It is generally recoverable against ordinary tax over the following seven years, which is only useful if you have ordinary tax to set it against. Your accountant should model it before the sale.
The timeline
| When | What |
|---|---|
| Two years before | Confirm the shares qualify for the exemption, or start the work to make them qualify. The tests look back 24 months. |
| One year before | Decide the structure you will ask for, and what an asset sale would cost you, so a buyer’s proposal can be priced. |
| At the letter of intent | Structure agreed, and any earnout or note structured with the tax in mind. |
| At closing | Elections filed. Reserves claimed on the return for the year. |
| The following April | The gain reported. Alternative minimum tax calculated. |
What this adds up to
The gap between the best and worst tax outcome on the same sale, for the same price, is routinely several hundred thousand dollars. Almost all of it is decided by choices made a year or more before the sale, in a conversation with an accountant that most owners have too late. This is the one part of selling where being early is worth real money.
This piece describes Canadian tax on a business sale in general terms, on the rules as of October 2026, and is for information only. Rates vary by province and the rules change; take advice on your own facts before you agree anything.
Questions owners ask
- How much tax do you pay when you sell a business in Canada?
- On a share sale, one half of the capital gain is added to your income and taxed at your marginal rate, so roughly a quarter of the gain at top rates, less whatever the lifetime capital gains exemption shelters, up to $1,275,000 of gain in 2026. On an asset sale the corporation is taxed on what it sells and you are taxed again on the dividend, which is usually more.
- How are shares in a private company taxed when you sell them?
- The gain is the price less the adjusted cost base of the shares, which is broadly what they cost you, and less selling costs such as legal fees and commissions. Half of that gain is added to your income for the year and reported on Schedule 3. Qualifying shares can shelter up to $1,275,000 of it in 2026.
- Is GST or HST charged when a business is sold?
- A share sale is exempt from GST and HST. On an asset sale, where all or substantially all of the assets needed to carry on the business are sold, the buyer and seller can jointly elect on Form GST44 to take the sale outside GST and HST. The election is filed by the buyer and should be agreed in the purchase agreement.
- Can I spread the tax on a business sale over several years?
- Where part of the price is paid over time under a vendor note, a capital gains reserve can generally spread the gain over up to five years so the tax follows the cash. The rules have limits and the reserve has a maximum each year; an accountant should structure the note with this in mind.