Acquisition Financing: What Options Does an SME Have to Buy Another Business in 2026

Acquisition financing is the factor that ultimately determines whether an M&A deal closes or stalls at term sheet stage. Data from the Spanish M&A market shows that over 65% of SME transactions in 2025 included some form of external financing. Yet most buyers enter negotiations without a clear understanding of the options available to them — defaulting to traditional bank debt or walking away from deals that could have been structured differently.

This analysis covers the main financing routes for acquiring a business in Spain, with current market data, real costs, and what lenders are actually requiring in 2026.

Starting point: how much equity do you actually need

Before discussing debt, one fundamental principle applies: no lender will finance 100% of the purchase price. Equity contributions vary by buyer profile and asset type, but rarely fall below 20-30% of the acquisition price.

Current market benchmarks in Spain for 2025-2026:

• Strategic buyer (company acquiring a company): minimum equity of 25-35%
• Management buyout (MBO/MBI): minimum equity of 15-25%, but typically requires personal guarantees or co-investment from a fund
• Private equity-backed acquisition: the fund typically contributes 40-60% as equity, the rest is leveraged

This means that for a business valued at €3 million, the buyer needs between €600,000 and €900,000 in available equity before negotiating any debt structure.

Acquisition financing in Spain: the 6 main sources

1. Senior bank debt

The most common option and the one offering the best cost terms. Spanish banks finance SME acquisitions with proven profitability under the following typical conditions in 2026:

• Financeable amount: 2.5x to 4x normalised EBITDA of the target
• Term: 5 to 7 years
• Interest rate: Euribor + 200-350 basis points
• Required collateral: share pledge, personal guarantee from the buyer, and often a mortgage over the target's assets
• Typical covenants: Net Debt/EBITDA below 3.5x, minimum DSCR of 1.2x

The main obstacle is the analysis timeline: a bank credit committee for an acquisition can take 6 to 12 weeks. This timeframe may be incompatible with the pace required by a competitive process.

2. Vendor loan

Vendor financing is the most underused mechanism in Spanish SME M&A transactions — and one of the most efficient. The seller agrees to receive part of the purchase price on a deferred basis, effectively acting as a lender to the buyer.

Market data shows that in 30-40% of SME deals below €10 million, the seller finances between 10% and 25% of the price. Typical terms:

• Amount: 10-25% of transaction price
• Term: 2 to 4 years
• Interest rate: 4% to 6% per annum
• Subordination: always subordinated to senior bank debt

For the seller, a vendor loan facilitates the deal and may defer part of the capital gain for tax purposes. For the buyer, it reduces equity requirements and signals to the bank that the seller has confidence in the business's continuity.

3. Private debt funds (direct lending)

Over the past three years, private debt funds have gained significant presence in Spain's acquisition financing market. They act as an alternative or complement to traditional banks, particularly in transactions between €5 million and €50 million.

Their terms differ significantly from bank debt:

• Cost: considerably more expensive than banks — 8% to 12% per annum (including arrangement fee)
• Speed: can close in 4-6 weeks versus 10-12 weeks for banks
• Structural flexibility: accept bullet payments, grace periods, and more complex structures
• Leverage: can reach 5x-6x EBITDA, above what banks will tolerate

Particularly useful when the deal has time pressure, when the buyer profile is an MBO without a long financial track record, or when additional debt is needed beyond what banks will fund.

4. Mezzanine financing

Mezzanine debt is a hybrid instrument between debt and equity: it has the nature of debt but is fully subordinated to senior debt and often includes an equity participation component (warrants or conversion rights). In Spain, its use is largely confined to private equity-backed buyouts.

Key characteristics:

• Total cost: 12% to 18% (combining cash interest + PIK + equity kicker return)
• Typical use: filling the gap between senior debt and equity in buyout transactions
• Minimum size: rarely below €5 million

5. ICO and government-backed lines

Spain's Official Credit Institute (ICO) offers specific lines to finance business investment, including acquisitions. The ICO Empresas y Emprendedores and ICO Internacional lines can apply to M&A processes under certain conditions.

The advantages are clear: subsidised rates, long terms (up to 20 years in some products), and grace periods of up to 3 years. However, the process is slower than commercial banking, and per-transaction amount limits may prove insufficient for mid-sized deals.

6. Family offices and private investors

Spanish family offices increased their activity in SME M&A deals during 2024-2025. They participate primarily as equity co-investors, though some also act as lenders on private debt terms. Their key differentiator is flexibility and time alignment: unlike a PE fund with a fixed exit horizon, a family office can hold its position for 10 to 15 years, facilitating more complex integration processes.

Acquisition financing: which option fits by deal size

No universal financing structure exists. The right choice depends on transaction price, buyer profile, and deal urgency. These are the most common patterns in the current Spanish market:

• Deals of €500K to €2M: senior bank debt + vendor loan (10-20%). Buyer equity of 25-35%. Structural simplicity is paramount at this size.
• Deals of €2M to €10M: senior bank debt (50-60%) + vendor loan (15-20%) + equity (25-30%). Possible ICO lines as a complement.
• Deals of €10M to €50M: senior bank or direct lending fund (40-55%) + possible mezzanine (10-15%) + equity (30-40%). Greater structural complexity and greater need for specialist financial advice.
• MBO/MBI with insufficient personal equity: necessarily involves co-investment from a fund (PE or family office) to complete the equity tranche.

The most common mistakes in acquisition financing

1. Approaching the bank before the LOI is signed. Banks won't conduct formal analysis without a preliminary agreement in place. You'll burn weeks making no progress.
2. Presenting non-normalised EBITDA to lenders. The accounting EBITDA of a family business typically includes family salaries, personal expenses, or below-market rents. The lender will make their own adjustments — better to control the narrative by doing it yourself first.
3. Underestimating transaction costs. Legal fees, due diligence, financial advisors and notary can add 2-5% to the transaction price. If you don't account for them in the financing plan, they appear as a problem at the end.
4. Negotiating price before having clarity on financing. Many buyers agree on a price and then discover they can't fund it. The result is an awkward renegotiation or a lost deal.
5. Ignoring vendor financing as an option. Experienced financial buyers propose it systematically. Those without financial experience stick to bank debt and lose structural flexibility.

The role of the financial adviser in debt structuring

For transactions above €2-3 million, involving a specialist M&A financial adviser delivers a clear economic return: access to more financing sources, better negotiated terms, and shorter time to close. The adviser acts as intermediary between buyer and lenders, prepares the financial model justifying the debt, and negotiates covenants and credit agreement terms.

At Fundenza, we work on both business valuation and transaction financing structure, ensuring that the debt structure is sustainable against the acquired business's cash flow and that the buyer reaches closing with all financing sources committed.

Frequently asked questions about acquisition financing

How long does it take to get a loan approved to buy a business?

Traditional banks take 8 to 12 weeks from submission to signing. Private debt funds can reduce this to 4-6 weeks, but at a higher financial cost. This is why it's important to start the financing process in parallel with due diligence — not after it concludes.

Is it possible to buy a business without contributing any equity?

In practice, no. All lenders require a minimum equity contribution from the buyer as a commitment signal and buffer against unforeseen events. The real market minimum in Spain is around 15-20% of the purchase price, and that percentage increases if the buyer has no track record in business management.

What collateral does the bank require to finance an acquisition?

The most common guarantees are: pledge over the shares of the acquired company, personal guarantee from the buyer, mortgage over the target's real estate assets (if any), and assignment of rights over the company's future cash flows. In some transactions, a guarantee from the buyer's parent company is also required.

What is DSCR and why does it matter?

The Debt Service Coverage Ratio (DSCR) measures the business's ability to service its debt from operating cash flow. It's calculated as adjusted EBITDA divided by the sum of interest payments and principal amortisation. Banks typically require a minimum DSCR of 1.2x-1.3x, meaning the business must generate at least 20-30% more cash than it needs to service the debt.

Can transaction costs also be financed?

Generally not, or only partially. Banks finance the acquisition price of the asset, not ancillary costs. Some direct lending funds include an additional tranche to cover part of these costs, but it's uncommon in traditional banking. Transaction costs should be budgeted as an additional expense in the deal's financial plan.