Mezzanine debt is junior financing that sits between senior debt and equity in the capital stack — subordinated to secured lenders, senior to shareholders. In exchange for that position, mezzanine lenders earn substantially higher rates, often supplemented by payment-in-kind interest, warrants, or other equity participation.
Where mezzanine sits and why it exists
Every leveraged transaction has a gap: senior lenders will only advance so much against cash flow or collateral, and equity holders want to contribute as little as possible. Mezzanine fills the space in the capital stack — the “mezzanine” floor between debt and equity. Structurally that means subordination: in a downside, mezzanine recovers only after senior secured claims are satisfied, which is why pricing runs well above senior spreads, historically in the low-to-mid teens all-in.
The economics are assembled from parts: a cash coupon, frequently a PIK component that accrues rather than pays currently, closing fees, and — in classic corporate mezzanine — warrants or co-invest rights that add equity upside. The blend gives mezzanine a hybrid return profile: mostly contractual like debt, with a kicker that behaves like equity. Intercreditor agreements with the senior lender define the fine print that matters in trouble — payment blockage, standstills, and cure rights.
Corporate mezz vs. real estate mezz
The same word covers two structurally different instruments, and the distinction is worth teaching clients.
Corporate mezzanine finances buyouts and growth in middle-market companies: subordinated notes beneath a senior facility, priced for the gap risk, with equity participation as standard. Its market share ebbs and flows with the unitranche, which absorbs the junior layer into one blended senior facility — when unitranche is abundant, standalone corporate mezz shrinks to situations that want its flexibility.
Real estate mezzanine is secured — but not by the property. The mortgage lender holds the real estate lien; the mezz lender takes a pledge of the equity interests in the property-owning entity, enforceable through UCC foreclosure rather than mortgage foreclosure. Practically, a defaulted real estate mezz lender can take over the ownership entity (subject to the mortgage) far faster than a mortgage foreclosure would allow — a remedy that is both the product’s protection and, for equity investors in syndicated deals, a risk worth understanding: mezz in the stack means another party that can seize the deal. Preferred equity often competes for the same slice with different legal form and remedies.
For allocators, mezzanine arrives through dedicated mezz funds, as sleeves within private credit and BDC portfolios, and inside real estate debt vehicles. Underwriting judgment concentrates on attachment/detachment points — how much value must erode before mezz is impaired — and the enforceability realities of its remedies.
FAQ
What is mezzanine debt in simple terms?
The layer of financing between a senior loan and the owners’ equity — riskier than the loan, safer than the equity, and priced in between, usually with double-digit all-in yields.
How is mezzanine debt secured in real estate?
By a pledge of the ownership entity’s equity, not a mortgage on the property. On default, the mezz lender can foreclose on the entity through the UCC process and step into ownership, subject to the existing mortgage.
What is PIK interest in mezzanine?
Interest paid by adding to the loan balance instead of in cash — it preserves borrower liquidity while compounding the lender’s claim, and can create phantom income for taxable investors in flow-through funds.
What returns does mezzanine target?
Historically low-to-mid teens all-in, assembled from cash coupon, PIK, fees, and equity kickers — with subordination risk as the price. Actual results depend on loss experience at the junior attachment point.
Related terms
Capital Stack · Preferred Equity · Senior Secured Lending · PIK (Payment-in-Kind) · Unitranche · Private Credit
Educational content only; not investment, tax, or legal advice. Consult qualified professionals regarding your specific circumstances.
