How Rising Rates Are Reshaping PE Deal Structures and Leverage

The era of sub-4% leveraged loan rates that fueled the 2019-2021 PE boom has given way to a sustained period of 7-9% financing costs, fundamentally changing the economics of leveraged buyouts. According to Pitchbook data, average equity contribution in U.S. buyouts rose from 42% in 2021 to 56% in 2025 — the highest level since the early 2000s.

The New Deal Math

Consider a typical mid-market buyout at 12x EBITDA with a $100 million target. In 2021, a sponsor could lever the deal at 6x with a blended cost of debt around 5%, requiring $50M in equity. The same deal today with 4.5x leverage at 8.5% cost requires $62.5M in equity and generates significantly lower leveraged returns. The implied equity IRR drops from approximately 28% to 18% assuming identical exit multiples and holding periods.

This arithmetic is forcing PE firms to adapt in several ways. Some are lowering return expectations, with several large funds revising their target net IRR from 20%+ down to 16-18%. Others are focusing on operational value creation rather than financial engineering, deploying larger operating teams to drive revenue growth and margin expansion post-acquisition.

Creative Structures Emerge

The rate environment has also spawned innovative deal structures. Seller notes and earnout arrangements have increased 80% since 2022, allowing sponsors to bridge valuation gaps without full upfront financing. Structured equity solutions — including preferred equity with PIK dividends from the sponsor's credit arm — are becoming common in larger transactions where traditional senior debt cannot support the required leverage.

Additionally, the convergence of PE and private credit has enabled "one-stop" financing solutions where the same firm provides both equity and a portion of the debt. Apollo, Ares, and Blue Owl have all closed recent transactions where their credit funds provided unitranche financing alongside equity from their buyout funds, capturing fees and interest on both sides of the capital structure.