Key takeaways
- PE buyers typically finance 40-60% of the purchase price with senior debt; the remaining 40-60% is equity from the PE fund. The debt capacity of the business, not the fund's resources, is the primary constraint on how much debt a buyer can raise.
- Senior debt in middle market PE transactions is typically 3.0-4.5x EBITDA; total debt (including any junior or mezzanine financing) is typically 4.0-6.0x EBITDA. Businesses below $3M EBITDA often face more restrictive leverage terms.
- Lower debt capacity does not necessarily mean a lower price, PE buyers with less leverage can compensate with more equity, but this reduces fund returns and typically results in lower bids or requests for seller notes to bridge valuation gaps.
- Interest rate environments directly affect purchase prices, when rates rise, debt service costs increase, reducing the EBITDA cushion above debt service and compressing the multiple buyers can pay while maintaining acceptable returns.
How PE buyers build a deal model
PE buyers acquire businesses using a combination of debt and equity. The debt is typically borrowed against the cash flows of the acquired business, not the PE fund, which is why lenders focus on the business's EBITDA, not the fund's assets.
The basic structure: the PE firm identifies a target purchase price (typically expressed as an EBITDA multiple), determines how much debt they can raise against the business's EBITDA (the "leverage capacity"), and funds the remaining purchase price with equity from their fund. The higher the leverage, the less equity required, and the higher the potential return on invested capital.
3.0–4.5x EBITDA
Senior debt leverage
40–60%
Purchase price funded by debt
18–24%
Target fund IRR
Why leverage capacity constrains the price PE buyers can offer
Debt capacity is the primary binding constraint on PE purchase price. A PE buyer who can raise 4x EBITDA in senior debt against your business can put in 4x without additional equity, which allows them to offer a higher total price while maintaining their return targets. A buyer who can only raise 3x has less capacity and must put in more equity or pay a lower price.
Your business's leverage capacity is determined by: EBITDA size (larger EBITDA supports more debt in absolute terms), EBITDA quality (recurring, contracted revenue supports more debt than project-based revenue), EBITDA growth trend (growing EBITDA supports more forward leverage), and industry (service businesses command more debt than capital-intensive businesses).
Leverage Capacity by Business Characteristic
Senior debt leverage multiples in middle market PE transactions have compressed from an average of 4.2x EBITDA in 2021 to 3.6x in 2024 as interest rates increased, reducing average purchase price multiples by approximately 0.5-0.75x EBITDA over the same period.
Seller notes as a bridge for leverage gaps
When a buyer's debt capacity is insufficient to support the seller's price expectation, sellers are frequently asked to provide a portion of financing in the form of a seller note, essentially a loan from the seller to the buyer, repaid over 2-5 years from the business's cash flows.
Seller notes bridge valuation gaps when the buyer believes in the business but cannot raise enough institutional debt to support full cash-at-close. From the seller's perspective, a seller note exchanges a portion of certain proceeds at close for higher total proceeds paid over time, with the risk that business performance may impair repayment.
If offered a seller note, evaluate: the interest rate (should be 6-10%, above senior debt rates), the term and amortization (shorter is safer), the security (subordinated to senior debt but secured against business assets), and the guarantees (personal guarantee from the PE firm is sometimes available in lower-middle market transactions). A seller note is not inherently bad, it is a risk/return trade-off that requires careful modeling.
3.0–4.5x EBITDA
typical senior debt leverage in LMM PE deals
0.5–0.75x
multiple compression from 2021 to 2024 as rates rose
40–60%
purchase price typically funded by debt
6–10%
interest rate range on seller notes when used to bridge valuation gaps
The interest rate environment directly affects what PE buyers can pay. When senior debt costs 7–8% instead of 4–5%, debt service consumes more EBITDA, compressing how much a buyer can lever the business and still hit their return target. A business that was worth 7x in a low-rate environment may only support 6x today, not because the business changed, but because the buyer's model changed.
A PE firm that cannot raise enough debt to pay your price is not a bad buyer. They are a constrained buyer. Understanding whether the gap between your price expectation and their offer is a leverage gap (fixable with a seller note) or a conviction gap (not fixable) determines whether there is a deal to be done.
How Rate Changes Affect PE Purchase Price (Illustrative, $4M EBITDA Business)
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