What closing costs and taxes should I expect when selling my business in Canada?
When selling a business in Canada, expect capital gains tax (typically the largest cost), broker or M&A advisor commissions, legal fees, accounting and tax planning fees, GST/HST on professional services, and — if real estate is included — land transfer tax. Together these commonly total 10–20% of transaction value. Capital gains tax can be significantly reduced or eliminated through the Lifetime Capital Gains Exemption if you structure the sale as a qualifying share transaction.
Capital gains tax on business sales
The capital gains inclusion rate in Canada is 50% for individuals on most capital gains. When you sell your business, you pay tax on the capital gain — the difference between your adjusted cost base and the sale price. The taxable capital gain equals your total gain multiplied by the 50% inclusion rate; your marginal income tax rate then applies to that taxable amount.
For a business owner in the highest marginal tax bracket (approximately 53.53% in Ontario): if you sell a business for $2,000,000 with an adjusted cost base of $200,000, your capital gain is $1,800,000. The taxable capital gain is $1,800,000 × 50% = $900,000. Tax owing: $900,000 × 53.53% = $481,770.
The proposed 66.67% tiered capital gains inclusion rate was permanently cancelled by the federal government on March 21, 2025, before it ever took effect. The 50% inclusion rate remains in force.
Lifetime Capital Gains Exemption (LCGE)
The Lifetime Capital Gains Exemption (LCGE) for 2026 is $1,275,000 for qualifying small business corporation shares. The LCGE is indexed annually to inflation. This exemption allows qualifying sellers to shelter up to $1,275,000 of capital gains from tax entirely.
The LCGE applies only to share sales of Qualified Small Business Corporation (QSBC) shares and qualified farm or fishing property, not to asset sales. A QSBC share must meet several tests, including that the corporation is a Canadian-controlled private corporation and that more than 50% of the fair market value of its assets are used principally in an active business carried on primarily in Canada. The shares must also have been held for at least 24 months prior to the sale, and throughout that period, more than 50% of the corporation's assets must have been used in active business.
Using the earlier example: if the $1,800,000 capital gain qualifies for the LCGE, the first $1,275,000 is sheltered. Only the remaining $525,000 is subject to capital gains tax: $525,000 × 50% = $262,500 taxable capital gain; $262,500 × 53.53% = $140,516 in tax owing — a savings of $341,254 compared to the non-LCGE scenario.
Asset sale vs. share sale tax treatment
The structure of the transaction — asset sale or share sale — fundamentally changes the seller's tax treatment.
In a share sale, the seller pays capital gains tax on the proceeds and may access the LCGE if the shares are QSBC shares. The corporation remains intact, and liabilities stay with the corporation unless the buyer explicitly assumes them. Share sales are typically more favorable to sellers from a tax perspective when the LCGE can be used.
In an asset sale, the seller typically pays capital gains tax on capital assets and ordinary income tax on inventory, goodwill (if eligible capital property treatment applies), and recaptured depreciation. Recaptured depreciation — the amount by which depreciation claimed exceeds the actual decline in asset value — is taxed as ordinary income at the seller's full marginal rate, not the reduced capital gains rate. Asset sales are often preferred by buyers because they can step up the tax basis of the acquired assets and avoid inheriting contingent liabilities.
The tax difference between the two structures can exceed 10–15% of the transaction value on large sales. Professional tax advice before selecting a structure is not optional.
GST/HST considerations
Business broker commissions are subject to GST/HST as a taxable professional service. The broker will charge GST or HST on top of their commission, and this amount is remitted to the Canada Revenue Agency. The going concern exemption under section 167 of the Excise Tax Act applies to the business sale price only, not to the broker's commission.
If you sell your business as a going concern — meaning you sell all or substantially all of the assets necessary to continue the business, and the buyer intends to continue operating it — the transaction itself may be exempt from GST/HST. This exemption applies in most business sales and prevents double taxation. However, the broker's fee is still subject to GST/HST regardless of whether the underlying sale qualifies for the going concern exemption.
Professional fees (legal, accounting, valuation)
Legal fees for a business sale transaction typically range from $5,000 to $50,000 depending on deal complexity, structure, and size. A straightforward asset sale of a small business may fall at the lower end; a share sale involving multiple shareholders, complex representations, or cross-border elements can reach $50,000 or more. Legal fees cover drafting and negotiating the purchase agreement, due diligence responses, disclosure schedules, and closing documents.
Accounting fees for transaction tax planning and financial statement preparation typically range from $3,000 to $25,000. An accountant's role includes structuring the transaction for optimal tax treatment, preparing financial statements and tax schedules for due diligence, calculating working capital adjustments, and filing post-closing tax returns. Tax planning fees are often the highest-return professional expense in a sale — the tax savings from proper structuring can exceed the accounting fee by a factor of ten or more.
Formal business valuation (CBV report) costs range from $5,000 to $25,000 for straightforward engagements and $25,000 to $50,000+ for complex engagements involving litigation, estate planning, or shareholder disputes. Not all sales require a formal CBV valuation, but one is typically necessary if you are claiming the LCGE (to establish that the shares qualify as QSBC shares), if the sale involves a related party, or if there are minority shareholders whose interests must be objectively determined.
Broker or M&A advisor commissions
Business brokers in Canada typically charge 8–12% commission on transactions under $1,000,000. Commission rates decline as deal size increases — a $500,000 sale might carry a 10% commission ($50,000), while a $5,000,000 sale might carry a 6% commission ($300,000). Most brokers charge success fees only, payable at closing.
M&A advisors typically charge success fees of 2–10% of transaction value, often calculated using the Lehman Formula or Double Lehman Formula. The Lehman Formula charges 5% on the first $1,000,000, 4% on the second $1,000,000, 3% on the third $1,000,000, 2% on the fourth $1,000,000, and 1% on amounts above $4,000,000. On a $4,000,000 transaction, the Lehman Formula produces a fee of $140,000 (5% of $1M = $50,000 + 4% of $1M = $40,000 + 3% of $1M = $30,000 + 2% of $1M = $20,000). Some advisors use the Double Lehman Formula, which doubles each rate.
Broker and advisor fees are the second-largest closing cost after capital gains tax on most transactions. They are also subject to GST/HST, so the all-in cost to the seller is the commission plus the applicable GST/HST.
Provincial land transfer tax (if real estate included)
If your business sale includes commercial real estate, provincial land transfer tax applies in most provinces. Ontario Land Transfer Tax on commercial property is calculated using marginal brackets: 0.5% up to $55,000, 1.0% on $55,001–$250,000, 1.5% on $250,001–$400,000, and 2.0% above $400,000. On a $1,000,000 property, the Ontario land transfer tax is approximately $16,475.
Other provinces have different land transfer tax structures: BC charges Property Transfer Tax, Alberta has no provincial land transfer tax, and Quebec charges land transfer duties (droit de mutation). Some municipalities levy additional land transfer taxes — Toronto, for example, charges a municipal land transfer tax in addition to the provincial tax, effectively doubling the rate.
Title insurance for commercial real estate transactions typically costs 0.1–0.3% of the property value. On a $1,000,000 property, this adds $1,000 to $3,000 to closing costs. Title insurance protects the buyer against title defects, liens, and encumbrances that were not discovered during the title search, and is commonly required by lenders.
Environmental site assessments (Phase I ESA) for businesses with real estate typically cost $2,000 to $5,000. A Phase I ESA reviews historical use, identifies potential contamination risks, and is standard in transactions involving industrial or commercial property. If the Phase I identifies concerns, a Phase II ESA (soil and groundwater testing) may be required, adding $10,000 to $50,000 in additional costs.
Other closing costs and disbursements
Due diligence and document preparation costs (data room setup, document review, disclosure schedules) can add $5,000 to $20,000 in professional fees. Virtual data rooms, third-party due diligence reports, quality of earnings analyses, and customer contract reviews all contribute to this total. Larger transactions with extensive due diligence requirements may exceed $20,000.
Sellers may be required to pay a portion of outstanding corporate taxes, unpaid liabilities, or holdback amounts from the purchase price to cover post-closing adjustments. Working capital adjustments at closing can result in either the seller receiving additional funds or owing money to the buyer, typically settled 60–90 days post-closing. A common structure is to hold back 5–15% of the purchase price in escrow for 12–18 months to cover indemnification claims or breaches of representations; tax and environmental representations may extend that period to 24 months.
Other miscellaneous costs include corporate minute book updates, director resignation documentation, lien searches, UCC filings (in asset sales), and discharge of security interests. These disbursements typically total $1,000 to $5,000 but can be higher in complex transactions with multiple secured creditors or registered liens.
This article is for informational purposes only and does not constitute financial, legal, or business advice. Every business sale is different. Before making decisions about valuation, pricing, or engaging an advisor, consult a qualified professional familiar with your specific situation.
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