Debt financing in M&A transactions means using borrowed money, from banks, private lenders, or even the seller, to fund part or all of an acquisition. It allows buyers to preserve their own capital, acquire larger targets, and benefit from tax-deductible interest payments, while repaying the debt from the acquired company's future cash flows.
Most mid-market acquisitions are not funded with cash alone. Whether you are buying a competitor, acquiring a supplier, or selling your business to a third party, understanding how debt fits into the deal structure is essential. For buyers, it determines how much capital is needed at closing. For sellers, it affects the certainty of payment and how the deal is structured.
This guide explains the main types of debt used in Canadian M&A transactions, why buyers use debt, the associated risks, and what legal considerations apply under Ontario and federal law.
The Acquisition Capital Stack
Before examining individual debt types, it helps to understand where debt sits in the overall deal financing structure.
Every acquisition is funded by a combination of three layers, often called the capital stack:
- Senior debt, the least expensive, first to be repaid, secured by assets
- Subordinated (mezzanine) debt, more expensive, repaid after senior debt, often carries equity features
- Equity, the buyer's own capital contribution, last to be repaid
The general rule is straightforward: the higher you sit in the stack, the lower the risk and the lower the cost of capital. Senior lenders take less risk and charge lower interest. Equity investors take the most risk and expect the highest returns. Buyers typically want to maximise the debt layers, using as much senior debt as the deal can support, and minimise the equity contribution.
The debt market has shifted considerably in recent years. According to Preqin data reported by S&P Global Market Intelligence, private debt accounted for 77% of global leveraged buyout financing in 2024, its highest share in the past decade. Private lenders have entered the Canadian market in force, offering borrowers more flexibility and options beyond traditional bank financing.
Types of Debt Financing in M&A Transactions
Senior Debt
Senior debt remains the cornerstone of acquisition financing. It is typically provided by a bank, credit union, or institutional lender, and carries the lowest interest rate because lenders have first priority on repayment if the deal goes sideways.
Senior debt comes in two forms. A term loan provides a fixed sum with a predetermined repayment schedule, monthly or quarterly payments over a set period. A revolving credit facility works more like a line of credit: the borrower can draw down, repay, and re-borrow up to a capped amount as working capital needs change.
Larger deals often use syndicated loans, where multiple lenders share the facility under common terms. Each lender commits to a portion of the loan and bears its own obligations independently. This spreads risk across the lending group and allows lenders to participate in deals larger than any single institution would want to carry alone.
Lenders providing senior debt will take security over the borrower's assets, and often the target's assets, once the acquisition closes. In Ontario, security over personal property (accounts receivable, inventory, equipment) is governed by the Personal Property Security Act, R.S.O. 1990, c. P.10 (PPSA). Lenders must register their security interests under the PPSA to protect their priority position. For businesses operating across multiple provinces, registrations are typically required in each province where assets are located.
Senior lenders also impose financial maintenance covenants, ongoing obligations to maintain certain financial ratios such as debt-to-EBITDA and interest coverage metrics. Breaching a covenant can trigger a default even if the borrower is making its payments on time, so understanding and monitoring these obligations post-close is important.
Asset-Based Lending (ABL)
Asset-based lending ties the available credit to specific business assets rather than to the borrower's overall creditworthiness. Lenders advance funds as a percentage of the value of agreed-upon collateral, typically accounts receivable (often up to 85%) and inventory (typically 35–65%), depending on the quality and liquidity of the assets.
ABL is particularly useful for acquisitions where the target has a strong asset base but uneven cash flows, or where the buyer is already carrying significant debt. One practical advantage: even the target company's assets can be factored into the borrowing base at closing, increasing the total financing available.
Because credit availability fluctuates with the underlying assets, ABL requires ongoing monitoring and reporting. Borrowers must submit regular borrowing base certificates showing asset values. This administrative burden is a trade-off for greater flexibility in the total amount available.
Mezzanine Financing
Mezzanine financing sits between senior debt and equity in the capital stack. It is a hybrid instrument that combines characteristics of both, it is technically debt, but often includes equity-like features such as warrants or rights to convert into shares.
Because mezzanine lenders take a subordinate position (they get repaid after senior lenders in a liquidation), they accept more risk and charge higher rates. Mezzanine debt typically carries interest rates in the range of 12–20% per annum in Canadian M&A transactions, with rates varying by deal size, risk profile, and market conditions. The higher cost is partially offset by a significant advantage: interest payments remain tax-deductible in Canada, unlike equity dividends.
Mezzanine financing is used to fill the financing gap between the maximum senior debt a deal can support and the buyer's available equity. In a leveraged buyout, for example, the stack might look like: 50% senior debt, 20% mezzanine, 30% equity.
The repayment structure is often more flexible than senior debt, payments may be deferred or structured as payment-in-kind (PIK) in the early years of the deal, preserving cash flow during integration.
Leveraged Buyout (LBO) Structure
A leveraged buyout is not a debt type per se, it is an acquisition structure that relies heavily on debt, typically using 60–90% borrowed money to fund the purchase price. The term appears frequently in M&A because it describes the mechanism by which private equity firms and other sophisticated buyers make large acquisitions while contributing relatively little of their own capital.
In an LBO, the acquired company's own assets and future cash flows service the acquisition debt. This means the deal fundamentally depends on the target performing well after closing, if cash flows drop, the debt obligations remain fixed.
LBO structures are most appropriate for mature companies with stable, predictable cash flows and strong asset bases. Early-stage or cyclical businesses are generally poor LBO candidates because the debt service burden can be unsustainable during a downturn.
Vendor Take-Back Financing (Seller Financing)
In a vendor take-back arrangement, the seller agrees to finance part of the purchase price directly. Rather than receiving the full price at closing, the seller accepts some portion now and receives the remainder over time, with interest, through a promissory note or deferred payment obligation.
Vendor financing is common in small and mid-market transactions, particularly when bank financing is limited or there is a gap between the buyer's financing and the purchase price. It can also bridge valuation differences: if the seller believes the business is worth more than the buyer is willing to pay, a vendor note tied to future performance (an earn-out) can address the gap.
From the seller's perspective, vendor financing introduces credit risk. The seller becomes a lender and needs to assess whether the buyer, now the operator of the business, can generate sufficient cash flows to make the payments. Sellers should carefully review the buyer's business plan, obtain security over assets where possible, and negotiate appropriate default and acceleration provisions.
One important legal consideration for sellers: the tax treatment of an instalment sale may differ from a lump-sum payment, and structuring advice from a tax lawyer should be obtained before agreeing to vendor financing terms.
Bridge Loans
A bridge loan is short-term financing used to "bridge" a timing gap, most commonly between signing a purchase agreement and arranging permanent financing, or between closing and accessing capital markets.
Bridge loans are typically more expensive than permanent financing, with interest rates that often increase periodically over the initial term to incentivise the borrower to replace them quickly. They are always accompanied by a clear take-out plan: the permanent financing (bank loans, bond issuance, equity raise) that will repay the bridge.
In Canadian private M&A, bridge loans are relatively less common than in large public transactions, where acquisition financing commitments are announced simultaneously with the deal. They appear more frequently in situations where speed is critical and the buyer cannot wait for a full lender due diligence process before signing.
Advantages of Debt Financing in M&A Transactions
Lower cost of capital. Debt is generally cheaper than equity. Equity investors expect higher returns to compensate for taking a subordinate position in the capital stack. Debt carries a contractual obligation, making it less risky for the provider and therefore less expensive for the issuer.
Tax deductibility. In Canada, interest payments on acquisition debt are generally deductible against income, reducing the after-tax cost of borrowing. This tax advantage is one reason M&A buyers historically favour debt over equity in deal structures. Note that Canada's Excessive Interest and Financing Expenses Limitation (EIFEL) rules, which apply to taxation years beginning after September 30, 2023, following Royal Assent of Bill C-59 on June 20, 2024, may cap interest deductibility in certain circumstances. A tax lawyer should review large acquisition financing structures before finalising terms.
No ownership dilution. Using debt rather than issuing new equity means existing shareholders retain their ownership percentage. The buyer controls the acquired business without bringing in new equity partners who would share in future upside.
Enhanced acquisition capacity. Debt allows buyers to pursue targets significantly larger than their available cash would allow. A buyer with $5 million in equity can potentially complete a $15–20 million acquisition by using debt appropriately, amplifying the return on equity if the deal performs well.
Risks of Debt Financing in M&A Transactions
Fixed repayment obligations. Unlike equity, debt must be repaid regardless of how the acquired business performs. If the target underperforms post-acquisition, the debt service burden can strain cash flows and, in severe cases, threaten the viability of the combined business.
Covenant restrictions. Senior lenders impose operating and reporting covenants that restrict management flexibility. Common restrictions include limits on additional indebtedness, dividend payments, capital expenditures, and material asset disposals. Understanding the full scope of covenant obligations before closing is essential.
Credit rating impact. High debt loads can downgrade the acquirer's credit rating, increasing the cost of future borrowing and potentially triggering default under existing debt agreements that contain cross-default provisions.
No "financing out" in Canadian private M&A. This is a critical point for buyers in Canada: unlike some other jurisdictions, Canadian private M&A purchase agreements do not typically include a financing condition that allows the buyer to walk away if financing falls through. Buyers must have financing arranged and committed before signing, or risk being in breach of a binding purchase agreement. This makes pre-signing due diligence with lenders essential, not optional.
Lender due diligence adds time. Lenders conduct their own comprehensive due diligence on both the acquirer and the target before committing to financing. This adds time to the closing process and requires the seller and target to participate in providing information to the buyer's lenders, something that should be negotiated in the purchase agreement.
Legal Considerations in Debt-Financed Acquisitions
Structuring the financing layer of an acquisition involves several overlapping legal workstreams that run parallel to the main deal negotiations.
Credit agreement negotiation. Loan terms, security packages, covenant structures, and representations and warranties in credit agreements require careful legal review. The credit agreement governs the lender relationship for the entire life of the debt.
PPSA security registration. Lenders will require security over both the buyer's and target's assets. Under the PPSA, security interests in Ontario personal property must be perfected by registration. For national transactions, registrations in multiple provincial jurisdictions may be required. Missed or defective registrations can leave a lender's security interest unperfected and therefore subordinate to other creditors.
Intercreditor arrangements. When a deal uses multiple layers of debt, senior debt plus mezzanine, for example, an intercreditor agreement governs how the lenders relate to each other: who gets paid first, what restrictions apply to junior lenders, and what rights junior lenders have to take enforcement action. These agreements can be complex and often require separate legal representation for each lender tier.
Deal structure alignment. The choice between an asset sale and a share sale affects the security available to lenders and the tax treatment of the deal. These considerations must be coordinated between the M&A lawyers advising on the transaction and the financing counsel advising the lenders.
At Hadri Law, Nassira El Hadri brings direct experience advising banks and credit unions on M&A and financing transactions, and Nicholas Dempsey has worked on more than 90 asset and share sale transactions across a range of sectors. Together, they provide integrated transactional and financing advice rather than treating the deal and the debt as separate matters.
Frequently Asked Questions
What is the difference between senior debt and mezzanine financing?
Senior debt is secured, holds first priority in repayment, and carries the lowest interest rate. Mezzanine financing is subordinated, unsecured, and carries a higher interest rate, typically in the range of 12–20%, to compensate for the additional risk. Mezzanine debt often includes equity features such as warrants.
Is interest on acquisition financing tax-deductible in Canada?
Generally yes. Interest paid on money borrowed to acquire a business is deductible against income in Canada, subject to certain rules. Canada's EIFEL rules (applicable to tax years beginning after September 30, 2023) may limit interest deductibility for businesses in highly leveraged structures. A tax lawyer should review the financing structure before finalising terms.
Can a buyer walk away from a Canadian M&A deal if financing falls through?
Generally no. In Canadian private M&A, "financing out" clauses, which would allow a buyer to terminate the deal if financing cannot be obtained, are uncommon. Buyers are expected to secure financing commitments before signing. This makes early engagement with lenders and pre-signing financing due diligence essential.
What is a leveraged buyout (LBO)?
An LBO is an acquisition structure in which debt, typically 60–90% of the purchase price, is the primary funding source. The target company's assets and cash flows service the acquisition debt. LBOs are common in private equity transactions and are best suited to stable, cash-flow-positive businesses with strong asset bases.
What is vendor take-back financing?
Vendor take-back (or seller) financing occurs when the seller agrees to defer part of the purchase price and effectively lend it to the buyer. The buyer makes principal and interest payments over a specified period after closing. It is common in small and mid-market deals and can bridge gaps between available bank financing and the total purchase price.
What is the PPSA and why does it matter in acquisitions?
The Personal Property Security Act, R.S.O. 1990, c. P.10 (PPSA) governs the creation, perfection, and priority of security interests over personal property in Ontario. Lenders must register their security interests under the PPSA to establish priority over the borrower's assets. In multi-province transactions, registrations in each relevant province are typically required.
What are debt covenants?
Debt covenants are conditions a borrower must comply with as a condition of the loan. Financial maintenance covenants require the borrower to maintain certain financial ratios (e.g., debt-to-EBITDA, interest coverage). Negative covenants restrict certain actions without lender consent (e.g., additional borrowing, asset sales, dividends). Breaching a covenant can trigger a default.
When should a business use debt versus equity to finance an acquisition?
The choice depends on the target's cash flow stability, the buyer's risk tolerance, tax considerations, and market conditions. Debt is generally preferred when the target has predictable cash flows, when the buyer wants to avoid dilution, and when interest rates are manageable. Equity is preferred when cash flows are uncertain, high debt loads would be unsustainable, or the buyer wants to bring in a strategic or financial partner.
Sources & Official Resources
Ontario Statutes Cited
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Contact Hadri Law
If you are considering buying or selling a business and need guidance on how to structure the financing, understanding your options early can make the difference between a well-structured deal and one that leaves value on the table.
Hadri Law's M&A team, with experience advising banks, credit unions, and corporate clients on acquisition financing and transactional matters, can guide you through the financing structure, review credit agreements, and coordinate the legal workstreams that run alongside a deal.
Call (437) 974-2374 for a free initial consultation. We serve clients in English, French, Spanish, and Catalan.
This article provides general information and is not legal advice. Every transaction is different. Contact a lawyer to discuss the specific circumstances of your acquisition.
