M&A due diligence checklist Canada

An M&A due diligence checklist in Canada is a structured framework of documents and legal reviews that buyers and sellers work through before a business acquisition closes. It covers corporate records, financial statements, material contracts, tax filings, intellectual property, and regulatory compliance. For sellers, it also means proactively organizing every record a buyer's legal team will scrutinize — typically over a 30-to-90-day process — to avoid surprises, protect valuation, and close with confidence.

This guide covers the full lifecycle of a Canadian M&A transaction, from the NDA that opens the door to confidential information, through the due diligence process (from both buyer and seller perspectives), representations and warranties, working capital adjustments, escrow and holdback provisions, and the post-closing obligations that both sides must manage after signing. Whether you are preparing to sell your business or evaluating an acquisition, understanding each of these mechanics gives you a meaningful advantage at the negotiating table.

1. Before Due Diligence Begins: The Non-Disclosure Agreement (NDA)

No serious M&A process begins without an NDA in place. Before a seller shares financial statements, customer lists, supplier terms, or any other confidential business information, both parties must first agree on how that information will be protected.

In M&A transactions, NDAs (also called confidentiality agreements) are typically one-sided: the buyer signs and commits to keeping the seller's information confidential. The seller is the disclosing party; the buyer is the recipient. Mutual NDAs — where both sides exchange confidential information — are less common in standard acquisitions but may apply in strategic mergers where both companies share sensitive data.

What an M&A NDA Must Cover

A well-drafted M&A confidentiality agreement goes beyond a basic non-disclosure clause. Key provisions include:

Definition of confidential information. The NDA should define exactly what is protected: financial statements, projections, customer and supplier lists, pricing information, trade secrets, employee compensation data, and any strategic plans shared during negotiations.

Permitted use restriction. The buyer may only use disclosed information for the purpose of evaluating the potential acquisition — not for competitive advantage, poaching employees, or approaching the seller's customers.

Non-solicitation provision. Many M&A NDAs restrict the buyer from recruiting the seller's key employees during and after the diligence process. This is especially important when buyer and seller operate in the same market.

Standstill provision. In transactions involving publicly listed or widely-held companies, standstill clauses prevent a prospective buyer from acquiring shares in the target on the open market during the negotiation period — protecting the seller from an unwanted takeover attempt while negotiations are underway.

Term and duration. Typical M&A NDAs run for two to three years from the date of disclosure, or for the duration of negotiations plus a tail period. The confidentiality obligation should survive if the deal does not close.

Return or destruction obligation. If the deal falls apart, the NDA should require the buyer to return or certify destruction of all confidential materials.

Exclusions. Standard exclusions include information already in the public domain, information the buyer already independently possessed, and disclosures required by law or court order.

MaRS Discovery District has published sample NDA templates for asset purchase transactions — a useful starting point that M&A counsel can adapt to the specifics of a given deal. However, a template is only a foundation; for significant transactions, bespoke drafting is warranted.

The NDA connects directly to data room setup. Once signed, the seller grants the buyer access to a virtual data room (VDR) — a secure, organized digital repository of all disclosure documents. A well-organized data room signals a sophisticated, prepared seller and can meaningfully accelerate the diligence timeline.

2. The Seller's Legal Due Diligence Checklist: Preparing Your Business for Sale

Sellers who wait for a buyer's request list to organize their documents are at a disadvantage. Preparation should begin months before a letter of intent is signed. A seller who presents organized, complete disclosure materials builds buyer confidence, reduces due diligence surprises, and strengthens their negotiating position.

Here is what a Canadian M&A legal due diligence checklist typically requires sellers to prepare.

Corporate Records and Governance Documents

The minute book is the cornerstone of any seller's disclosure package. Under both the Ontario Business Corporations Act (OBCA) and the Canada Business Corporations Act (CBCA), corporations are legally required to maintain a minute book at their registered office or another location in Canada as authorized by the directors.

A complete minute book includes:

Articles of incorporation, amalgamation, and any amendments
Corporate bylaws and any resolutions amending them
Share register showing all current shareholders, share classes, and transfer history
Register of directors and officers (current and historical)
Minutes of all shareholder and director meetings, including key resolutions
Any shareholders' agreements, unanimous shareholder agreements (USAs), or share restriction agreements
Evidence of any share issuances, transfers, or repurchases

Failure to maintain an up-to-date minute book can result in fines under provincial legislation, delay or derail a transaction, and in extreme cases raise questions about corporate governance that suppress valuation. Buyers and their counsel treat a disorganized minute book as a red flag.

Extra-provincial registrations should also be confirmed. If the corporation carries on business in provinces outside its home jurisdiction, it must be registered in each of those provinces — and those registrations must be current.

Financial and Tax Documents

Buyers evaluate a business's financial health through multiple lenses. Sellers should prepare:

Financial statements (balance sheet, income statement, cash flow statement) for the past three to five years — audited statements, if available, carry greater weight than internally-prepared financials
Corporate tax returns (T2s) for the past three to five years
Accounts receivable and payable aging reports (demonstrating quality of revenue and supplier relationships)
Current bank statements and credit facility documentation
Budgets and financial projections, with assumptions clearly stated
A schedule of any outstanding CRA assessments, appeals, or disputes
HST/GST registration confirmation and recent filings
Any significant capital expenditures or upcoming capital requirements

In a share sale transaction, the buyer inherits all of the company's historical tax liabilities. A CRA clearance certificate — which confirms that no outstanding federal tax is owed — provides meaningful protection, though it typically only becomes available at or near closing. Sellers should proactively engage their tax counsel to assess any outstanding tax exposure before a deal is launched.

Contracts and Material Agreements

Every material contract the business has entered into must be disclosed. This includes:

Customer contracts, particularly any multi-year service agreements or significant accounts
Supplier and vendor agreements
Commercial lease agreements (including any options to renew or purchase)
Employment agreements and offer letters for key employees
Independent contractor and consulting agreements
Non-competition and non-solicitation agreements with former employees or business partners
Any franchise or licence agreements
Loan agreements, credit facilities, and security agreements
Joint venture or partnership agreements
Government contracts or grant agreements

Change-of-control clauses are a critical focus. Many commercial contracts include provisions that allow the counterparty to terminate the agreement, or that require consent for assignment, upon a change in ownership of the contracting party. Sellers must identify these clauses early — buyers will require that all necessary consents be obtained before closing.

Intellectual Property

IP assets are frequently significant value drivers in an acquisition. Sellers should compile:

Trademark registrations and pending applications (search Canadian Intellectual Property Office records)
Patent filings (Canadian and any international filings)
Copyright registrations
Domain name registrations and records of digital asset ownership
Software licence agreements (both as licensor and licensee)
Any IP assignment agreements from founders, employees, or contractors

A common issue in smaller businesses: IP created by founders before incorporation, or by contractors, was never formally assigned to the corporation. This is a due diligence deficiency that can significantly complicate a transaction.

Regulatory and Compliance Records

Depending on the industry, regulatory compliance documentation may include:

Business licences and municipal permits
Industry-specific regulatory approvals (financial services, healthcare, food and beverage, construction)
Environmental compliance certificates and any environmental assessments
Workplace Safety and Insurance Board (WSIB) clearance certificates
Employment standards compliance records
PIPEDA/CPPA privacy policy and any data breach history
Workers' compensation and health and safety records

Employment and HR Documentation

Buyers scrutinize the workforce carefully, particularly in people-dependent businesses. Sellers should prepare:

An organizational chart and headcount breakdown
Employment agreements for key personnel (especially executives)
Any collective bargaining agreements if the workforce is unionized
Non-competition and non-solicitation agreements with key employees
HR policies, employee handbook, and any bonus or equity plan documentation

3. The Buyer's Legal Due Diligence Checklist: What to Verify Before Closing

While sellers prepare disclosure packages, buyers conduct independent verification. The buyer's goal is not simply to receive documents — it is to identify risks, test the seller's representations, and inform deal structure, pricing, and protections.

Corporate and Ownership Verification

A buyer's first task is confirming the seller actually owns what is being sold. In a share purchase, this means reviewing the share register, confirming that the shares being acquired represent the full ownership interest, and checking for any liens, pledges, or encumbrances registered against those shares.

Buyers must also confirm:

That no outstanding options, warrants, or convertible instruments exist that could dilute ownership post-closing
Whether any existing shareholders' agreements contain rights of first refusal that could complicate the transfer
That the board of directors has properly authorized the sale via corporate resolution
That any drag-along or tag-along rights have been addressed

Financial Statement Review

Sophisticated buyers go beyond reading financial statements — they analyze the quality of the reported numbers. Key questions include:

Is revenue recurring or one-time? Subscription or contract revenue commands a higher multiple than project-based revenue.
Are there off-balance-sheet liabilities — contingent obligations that don't appear on the balance sheet but could crystallize post-closing?
What is the quality of accounts receivable? An aging analysis reveals whether customers pay on time or whether receivables are impaired.
How is inventory valued, and is the valuation method consistent with prior periods?
Are there any pending customer disputes, warranty claims, or refund obligations?

Legal and Litigation Review

Corporate searches are non-negotiable. A Canadian buyer's legal review should include:

Personal Property Security Act (PPSA) searches against the target company and its key assets — identifying any registered security interests that must be discharged before closing
Certificate of status searches confirming the corporation is in good standing in its home jurisdiction and any provinces where it operates
Litigation searches for any pending or threatened legal proceedings
Government and regulatory searches for outstanding orders, penalties, or investigations
For real property: Phase 1 environmental assessment (minimum)

Contract Review and Change-of-Control Compliance

The buyer's counsel reviews every material contract for change-of-control clauses. Any contract that requires consent for assignment upon a change of ownership must be addressed as a condition precedent to closing. This is especially common in:

Commercial lease agreements (landlord consent is typically required)
Major customer contracts
Software licence agreements (many SaaS agreements prohibit assignment)
Credit facilities (most loan agreements include change-of-control provisions)
Franchise agreements

Failing to identify and obtain these consents before closing can leave a buyer holding a business whose key contracts have been terminated.

Tax Due Diligence

In a share purchase, the buyer inherits the entire historical tax profile of the acquired corporation — every year of CRA filings, every position taken, every outstanding audit risk. This makes tax due diligence especially critical compared to an asset purchase.

Key areas of focus:

CRA compliance history and any outstanding assessments
Federal and provincial income tax (T2 filings, instalments)
HST/GST compliance and any unclaimed input tax credits or disputed assessments
Employer Health Tax (EHT) and payroll remittance history
Transfer pricing issues if the business has related-party or cross-border transactions
Scientific Research and Experimental Development (SR&ED) claims, if applicable

Buyers typically negotiate for tax-specific representations and warranties with extended survival periods — often matching the CRA's normal audit window of three to four years for most taxpayers, and up to seven years in cases of suspected misrepresentation.

Regulatory Compliance: Investment Canada Act and Competition Act

Two federal statutes govern whether an M&A transaction requires regulatory approval in Canada:

Investment Canada Act (ICA). Any acquisition of control of a Canadian business by a non-Canadian acquirer triggers notification obligations, and potentially a "net benefit" review. The 2025 net benefit review threshold was C$2.079 billion in enterprise value for investors from countries with which Canada has a trade agreement (such as the United States), and C$1.386 billion for WTO investors; the 2026 thresholds are higher (C$2.179 billion and C$1.452 billion respectively — thresholds increase annually based on GDP). Below these thresholds, a notification filing (but not a full review) is still required in most cases. Additionally, the ICA grants the government broad national security review powers regardless of deal size. Confirm current thresholds with counsel at time of transaction.

Competition Act. Pre-merger notification is required when the Canadian assets being acquired (or the revenues generated by those assets) exceed C$93 million AND the combined Canadian assets or revenues of all parties exceed C$400 million — thresholds frozen since 2021. The parties must file with the Competition Bureau and observe a 30-day waiting period (extendable) before closing.

Most private SMB transactions in Canada fall well below these thresholds, but counsel should confirm applicability for every deal involving a non-Canadian buyer or significant asset values.

4. Representations and Warranties: The Legal Promises in Your Deal

Representations and warranties (commonly called "reps and warranties" or "R&Ws") are the contractual promises sellers make to buyers about the state of the business and its assets. They sit at the heart of the purchase agreement and form the primary basis for post-closing indemnification claims.

A representation is a statement of fact made as of a particular date — typically signing, closing, or both. A warranty is a contractual commitment that the stated fact is true, with an obligation to indemnify the buyer if it turns out to be false.

Categories of Representations and Warranties

M&A purchase agreements typically organize reps and warranties into three tiers:

Fundamental representations cover the most critical matters: the seller's authority to enter the deal, valid existence of the corporation, title to the shares or assets being sold, and absence of undisclosed liabilities. Fundamental reps typically survive indefinitely or for an extended period — in some deals, until the applicable statute of limitations.

General business representations cover the broader state of the business: accuracy of financial statements, no material adverse change since the last audited period, compliance with laws, status of key contracts, intellectual property ownership, employment matters, and environmental compliance. General reps typically survive for 12 to 24 months post-closing.

Tax representations warrant that all required tax returns have been filed, all taxes have been paid, and there are no outstanding CRA assessments. Given CRA's ability to reassess tax returns for three to four years under normal circumstances (and longer in cases of misrepresentation), tax reps typically survive longer than general business reps.

Survival Periods Under Ontario Law

The interaction between contractual survival periods and Ontario's statutory limitation periods is a critical drafting issue. Under the Limitations Act, 2002, Ontario's basic limitation period is two years from the date a claim is discovered. However, the Limitations Act expressly permits parties to business agreements to contract out of the two-year basic limitation period, making shorter or longer contractual survival periods enforceable.

Ontario also has an ultimate limitation period of 15 years from the day the act or omission giving rise to the claim occurred. No claim can be brought after this period, regardless of when it was discovered. This means that even "indefinite" survival provisions in Ontario M&A agreements are ultimately capped at 15 years in practice.

Baskets, Caps, and Deductibles

To manage indemnification exposure, purchase agreements typically include:

Basket (deductible). The buyer must accumulate a minimum threshold of losses before any indemnification obligation is triggered. A basket is typically expressed as a percentage of the purchase price — commonly 0.5% to 1%. Some deals use a "tipping basket" (once the threshold is crossed, the seller is liable for all losses from dollar one) versus a "deductible" approach (seller only pays losses above the threshold).

Cap. The seller's total indemnification liability for general reps is limited to a fixed percentage of the purchase price — commonly 10% to 20% for general reps, and 100% of the purchase price for fundamental reps. Tax indemnification caps are often negotiated separately.

Representation and Warranty Insurance

Representation and warranty insurance (RWI) has grown significantly in Canadian M&A over the past decade. Under an RWI policy, an insurer (rather than the seller) pays valid indemnification claims arising from breaches of the purchase agreement's reps and warranties. This allows sellers to achieve clean exits — receiving the full purchase price at closing without holding funds in escrow — while buyers retain meaningful protection.

RWI policies are common in private equity-sponsored deals and larger transactions. Where RWI is unavailable or not cost-effective (typically in SMB transactions below $10–$15 million), escrows and holdbacks remain the primary risk mitigation tool.

5. Working Capital Adjustments: Setting the Right Price at Closing

Working capital — current assets minus current liabilities — is the operational liquidity that keeps a business running day-to-day. In an acquisition, buyers typically require the seller to deliver the business with a "normal" level of working capital at closing, ensuring the buyer doesn't need to inject additional capital immediately after taking ownership.

Working capital provisions address a fundamental problem: the purchase price is typically negotiated months before the deal actually closes, and a business's working capital fluctuates continuously. Without an adjustment mechanism, either the buyer overpays (if working capital is lower at closing than assumed) or the seller receives less than they should (if working capital is higher).

Mechanism 1: The Closing Date Working Capital Adjustment

The closing date adjustment (also called a "true-up" mechanism) is the most common approach in Canadian private M&A transactions. Under this structure:

The parties agree on a target working capital level — typically based on a trailing 12-month average of the business's historical working capital, representing what "normal" looks like.
An estimated working capital is calculated at or near closing, and the purchase price is paid based on that estimate.
After closing, the parties prepare a closing balance sheet (typically within 45 to 90 days post-closing) using the same accounting principles applied to the historical financial statements.
The purchase price is adjusted up or down based on the difference between the estimated and actual closing working capital. If actual working capital is higher than target, the buyer pays more; if lower, the seller refunds the difference.

Key negotiation points include: the accounting methodology to be used in preparing the closing balance sheet, the dispute resolution mechanism if parties disagree on the closing working capital calculation (typically referral to an independent accounting expert), and the timelines for delivery of the closing statement and any objection notice.

Mechanism 2: The Locked Box Mechanism

The locked box is an alternative that eliminates post-closing adjustments entirely. Under this approach:

The purchase price is fixed at signing (not closing), calculated based on a historical balance sheet prepared as of an agreed "locked box date" — typically the most recent fiscal year-end or quarter-end for which financial statements have been prepared.
From the locked box date through closing, the seller commits that no value will be extracted from the business (no unauthorized dividends, management fees, related-party transactions, or asset disposals). Such unauthorized extractions are called "leakage" and are typically prohibited.
There is no closing balance sheet and no post-closing price adjustment.

The locked box mechanism provides price certainty that sellers often prefer. It eliminates post-closing disputes over accounting methodology — a significant source of M&A litigation under the traditional closing date approach. However, buyers bear the economic risk of the business from the locked box date forward.

The locked box mechanism is more prevalent in European M&A markets but has gained modest traction in Canada. As noted by Goodmans LLP, the most commonly used post-closing purchase price adjustment mechanism in Canadian private M&A continues to be the traditional working capital adjustment — but both structures are available and negotiable.

6. Escrow and Holdbacks: Protecting Both Sides After Closing

Escrow and holdback arrangements provide buyers with a funded source of recovery for post-closing indemnification claims, and they provide sellers with defined certainty about when and how they will receive the remaining purchase price.

How Escrow Works in Canadian M&A

At closing, a portion of the purchase price — typically 10% to 20%, though the amount is negotiated — is deposited into an escrow account held by a neutral third-party agent (commonly a law firm, trust company, or specialized escrow agent). These funds are not released to the seller immediately; they serve as a security deposit against the seller's indemnification obligations.

The escrow period typically runs for 12 to 24 months — long enough to allow the buyer to discover and evaluate any breaches of the seller's representations and warranties. During this period, if the buyer identifies a qualifying claim (a breach of an R&W, a tax liability, or another indemnifiable loss), it submits a written claim notice to the escrow agent.

Funds are released to the seller on a pre-agreed schedule, often in stages:

A partial release at 12 months (assuming no outstanding claims at that point)
Full release at the end of the escrow period, net of any pending claims

Tax-related claims often have a longer escrow tail — matching the CRA's statutory audit period to ensure the buyer has funded protection if a historical tax issue surfaces post-closing.

Holdback vs. Escrow

The terms are often used interchangeably, but there is a distinction:

Escrow: funds are held by a neutral third party, fully separated from both buyer and seller. Neither party can access the funds unilaterally.
Holdback: the buyer retains funds that would otherwise have been paid to the seller at closing. The buyer holds the money but has an obligation to release it upon satisfaction of conditions.

In smaller transactions, holdbacks with a buyer's counsel are common because they avoid the cost of formal escrow arrangements. In larger or more complex deals, third-party escrow provides greater certainty and reduces counterparty risk.

Earnouts: Contingent Purchase Price

A related but distinct mechanism is the earnout — a contingent payment structure where part of the purchase price is deferred and made contingent on the business achieving defined performance targets after closing.

Earnouts are common when buyer and seller have different views on the future performance of the business (a "value gap"). Rather than negotiating to impasse, parties agree that the seller will receive additional consideration if the business hits agreed milestones — typically revenue, EBITDA, or other operational metrics measured over one to three years post-closing.

Earnouts are popular in knowledge-based businesses, professional services firms, and technology companies where future performance is closely tied to seller participation. However, earnout disputes are one of the most common sources of post-M&A litigation in Canada. Key seller protections include: clear, objective measurement criteria; anti-dilution covenants preventing the buyer from manipulating results; buyer covenants to operate the business in a manner consistent with achieving the earnout metrics; and an independent auditor to calculate final earnout amounts.

7. Post-Closing Obligations: What Happens After the Deal Signs

The M&A process does not end at closing. Both buyers and sellers have ongoing obligations that, if mismanaged, can generate post-closing disputes, regulatory penalties, and relationship breakdown.

Corporate Housekeeping (Share Purchases)

After a share purchase closes, the buyer must update the corporate records to reflect new ownership. For the acquired corporation, this typically means:

Appointing new directors and officers reflecting the buyer's choice of management
Confirming compliance with Canadian residency requirements: under the CBCA, at least 25% of a corporation's directors must be "resident Canadians." Ontario eliminated its director residency requirement effective July 5, 2021 — OBCA corporations no longer require any Canadian-resident directors.
If the CBCA residency requirement creates complications for a non-Canadian buyer, the corporation can be "continued" (migrated) into a provincial jurisdiction with no residency requirements — such as Ontario or British Columbia — without triggering a dissolution.
Updating the share register, register of directors and officers, and any publicly registered records

Regulatory Notifications and Registrations

Post-closing administrative steps commonly include:

Notifying CRA of the change in ownership (CRA business number transfers may apply)
Updating HST/GST, payroll, and other tax registrations to reflect the new ownership structure
Registering extra-provincially if the acquisition results in the corporation carrying on business in provinces where it was not previously registered
Notifying any federal or provincial regulatory bodies as required by the corporation's licences or permits
Updating business name registrations if the operating name is registered separately from the corporate name

Seller's Ongoing Restrictive Covenants

Most purchase agreements include post-closing restrictions on the seller's conduct. These restrictive covenants are designed to protect the buyer's investment:

Non-competition. The seller typically agrees not to carry on a competing business within a defined geographic area for a defined period — commonly two to five years. In Canada, the enforceability of non-compete clauses depends heavily on the specific facts: the geographic scope must be reasonable, the duration must be proportionate to the interests being protected, and the clause must not be drafted more broadly than necessary. Courts have struck down overly broad non-competes as unenforceable restraints on trade.

Non-solicitation. The seller agrees not to solicit the acquired business's customers or employees for a defined period. Non-solicitation clauses are generally easier to enforce than non-compete clauses because they are narrower in scope.

Confidentiality. The seller's confidentiality obligations extend post-closing: the seller cannot disclose confidential business information about the acquired company to third parties.

Non-disparagement. The seller agrees not to make negative public statements about the acquired business, its management, or its products and services.

Cooperation. The seller must cooperate with the buyer's requests for documents, records access, and any regulatory matters arising from the pre-closing period.

Transition Services Agreements

In carve-out transactions — where a portion of a larger business is being sold — the seller may continue to provide services to the divested business unit during a transition period. A transition services agreement (TSA) defines:

Which services the seller will continue to provide (IT, HR, payroll, finance, supply chain)
Duration of each service, typically three to 12 months
Pricing for services (often at cost or a small markup)
Standards of performance
Termination rights for each service category as the buyer builds internal capabilities

TSAs are complex to negotiate because they require a detailed catalogue of services and clear exit timelines. Prolonged TSA arrangements create dependency risk for the buyer and resource burden for the seller.

Managing Post-Closing Indemnification Claims

If the buyer discovers a breach of the seller's representations and warranties after closing, the indemnification process is initiated:

Buyer delivers a written claim notice to the seller (and the escrow agent, if funds are still held in escrow), identifying the claimed breach and the estimated loss.
The seller has the right to dispute the claim within a defined response period.
If the claim cannot be resolved by negotiation, the parties proceed to the dispute resolution mechanism specified in the purchase agreement — typically expert determination for accounting claims, and arbitration or litigation for legal disputes.
Valid claims are satisfied first from escrow funds; if the claim exceeds the escrow amount, the buyer may pursue the seller directly, subject to the indemnification cap.

The survival period is a hard deadline: any claim not initiated before the applicable rep's survival period expires is forever barred. Buyers must act promptly upon discovering potential issues.

8. Asset Sale vs. Share Sale: How Deal Structure Affects Due Diligence

The structure of a transaction — whether the buyer acquires the shares of a corporation or its assets — has a profound effect on the due diligence process and the legal protections both parties need.

Share purchases are generally preferred by sellers because the proceeds qualify for the capital gains exemption (including the lifetime capital gains exemption for qualifying small business corporations, currently $1.25 million per individual for 2025). In a share sale, the buyer acquires the entire corporation — including all assets AND all historical liabilities. This makes thorough due diligence essential for buyers: there is no clean break from the company's past.

Asset purchases are generally preferred by buyers because they acquire only the assets they want, assuming only the liabilities they specifically agree to take on. Buyers get a "clean start." However, asset purchases are more tax-inefficient for sellers, who may face income tax on recaptured depreciation (capital cost allowance) as well as capital gains tax on any goodwill or other assets.

Due diligence differences between the two structures:

Aspect	Share Purchase	Asset Purchase
Historical tax liabilities	Buyer inherits ALL	Buyer takes only what is specified
Contract assignment	Contracts transfer automatically (subject to change-of-control clauses)	Must individually assign each contract
Licences and permits	Generally transfer with corporation	Must apply for new licences in buyer's name
Employment	Employees remain employed by corporation	New employment relationships required in most cases
HST on purchase	Generally no HST on share transfer	HST may apply; s.167 election may exempt certain asset purchases
PPSA searches	Against the corporation	Against individual assets

Understanding these structural differences is essential before committing to either approach — and before designing the due diligence process.

Frequently Asked Questions

How long does due diligence take in Canada?

Most M&A due diligence processes in Canada take 30 to 90 days; 60 days is the average for small-to-mid-sized business transactions. Deals requiring Investment Canada Act or Competition Act approval can extend beyond this. Sellers who organize their data room in advance can compress timelines significantly.

What documents does a seller need to provide in due diligence?

A seller's legal due diligence checklist includes the corporate minute book, three to five years of financial statements, T2 tax returns, all material contracts (customer, supplier, lease, employment), intellectual property registrations, regulatory licences, and key employment records. The buyer's counsel typically issues a tailored request list at the start of the process.

What are representations and warranties in an M&A transaction?

Representations and warranties are the seller's contractual promises about the accuracy of statements regarding the business. If a rep proves false post-closing and the buyer suffers a loss, the seller must indemnify the buyer. Survival periods (typically 12–24 months for general reps), baskets, and liability caps are all negotiated in the purchase agreement.

What is a working capital target in an M&A deal?

A working capital target is the agreed level of current assets minus current liabilities the seller must deliver at closing — typically based on a trailing 12-month average of the business's historical working capital. If actual working capital at closing falls below target, the purchase price is reduced by the shortfall.

What is the difference between escrow and a holdback in M&A?

In escrow, a neutral third party holds a portion of the purchase price until post-closing conditions are met — neither party can access funds unilaterally. In a holdback, the buyer retains those funds and releases them when conditions are satisfied. Both protect buyers against post-closing indemnification claims from seller warranty breaches.

What is representation and warranty insurance in Canada?

Representation and warranty insurance (RWI) is a policy where an insurer — not the seller — covers buyer losses from breaches of the purchase agreement's warranties. RWI allows sellers to achieve clean exits without holding funds in escrow. It is most common in private equity deals and transactions above $20–50 million; SMB transactions typically use traditional escrow instead.

Do I need to file with the Competition Bureau for a business acquisition in Canada?

Pre-merger notification under the Competition Act is required when the Canadian assets being acquired exceed C$93 million (2024–2025 threshold — confirm current figures with counsel). Where required, parties file a statutory form and observe a 30-day waiting period before closing. Most private SMB transactions fall well below this threshold and do not require notification.

What post-closing obligations does a seller have after a business sale?

Post-closing seller obligations typically include non-competition (usually 2–5 years in Canada), non-solicitation of employees and customers, ongoing confidentiality, cooperation with the buyer's requests, and management of any indemnification claims. If the deal includes an earnout, the seller may also be required to support achievement of the agreed performance milestones.

What is a locked box mechanism in M&A?

A locked box is a fixed-price deal structure where the purchase price is set at signing based on a historical balance sheet, with no post-closing working capital adjustment. The seller commits not to extract value ("leakage") between the locked box date and closing. It eliminates post-closing price disputes but transfers economic risk to the buyer from the locked box date forward.

Sources & Official Resources

Federal Statutes Cited

Ontario Statutes Cited

Government Resources

Contact Hadri Law

If you are preparing to sell your business or evaluating an acquisition, understanding every stage of the M&A deal mechanics — from the NDA that opens negotiations to the post-closing obligations that follow signing — is essential to protecting your interests and maximizing the outcome of your transaction.

Hadri Law's M&A team has guided buyers and sellers through dozens of transactions across a range of industries. Nicholas Dempsey, a corporate lawyer admitted to the Law Society of Ontario (2018) who has worked on more than 90 asset and share sale transactions at a top-ranked Toronto firm, brings direct transactional experience to every deal. Nassira El Hadri, Hadri Law's founder, brings deep M&A and financing experience from advising banks, credit unions, and corporate clients on complex transactions throughout her career.

Call (437) 974-2374 for a free consultation. We work with clients from our office at First Canadian Place, 100 King Street West, Suite 5700, Toronto — and serve clients in English, French, Spanish, and Catalan.

This article provides general legal information and is not legal advice. Every transaction is different. Please contact a lawyer to discuss the specific circumstances of your deal.