What it means
The name comes from the mezzanine floor of a building, sitting between two main levels. In the capital stack it ranks below senior secured debt and above ordinary equity, so it absorbs losses before shareholders do but after the bank has been made whole.
Pricing reflects that position. Senior debt might cost 6% to 9%, while mezzanine typically costs 12% to 20% all in, and part of that return is usually delivered through warrants that let the lender share in any increase in company value.
Mezzanine interest is often split into cash pay and payment in kind. Cash pay is settled quarterly like ordinary interest, while payment in kind, or PIK, is added to the outstanding principal and repaid at maturity, which protects cash flow in the early years but grows the balance owed.
It is used most often to bridge a funding gap. When a bank will lend three times EBITDA and the seller wants five times, mezzanine can fill the difference at a cost that is still cheaper than selling equity in a business the owners expect to grow.
The structure is usually light on security and heavy on covenants. Mezzanine lenders rarely take a first charge over assets, so they protect themselves with leverage tests, interest cover tests, information rights and sometimes a board observer seat.
The trade-off is real and should be modelled carefully. Mezzanine avoids immediate dilution but adds a fixed obligation that must be serviced whatever happens to trading, and a business that misses its plan can find the accrued balance uncomfortably large at maturity.
In practice
Real-world examples
Example 1
A family-owned engineering firm buys a competitor for $18,000,000. Its bank will lend $9,000,000 and the family can contribute $5,000,000, so a $4,000,000 mezzanine facility closes the gap. That avoids bringing in an equity partner who would want a board seat and a third of the business.
Example 2
A private equity fund uses mezzanine to raise leverage on a buyout from 3.5 times EBITDA to 4.75 times. The extra debt lifts the projected equity return, but it also means the business must generate materially more cash each year to stay inside its covenants.
Example 3
A fast-growing software company takes $6,000,000 of mezzanine with warrants over 4% of the equity rather than running a priced equity round. The founders keep control, and the lender's upside only becomes valuable if the company is eventually worth far more than it is today.
Think of it
Mezzanine debt is like a sturdy stepladder placed on top of a table. It sits between the floor and the ceiling, giving you that extra reach when standard tools are just a little too short.
Formula
Calculation
Annual mezzanine cost = (cash interest rate x outstanding principal) + (PIK rate x outstanding principal), where the PIK portion is added to the balance rather than paid across.
A company raises $10,000,000 of mezzanine debt at 12% cash pay plus 3% PIK, alongside $25,000,000 of senior debt and $15,000,000 of equity, funding a $25,000,000 + $10,000,000 + $15,000,000 = $50,000,000 acquisition.
In year 1, cash interest = 12% x $10,000,000 = $1,200,000 and the PIK accrual = 3% x $10,000,000 = $300,000. The closing balance becomes $10,000,000 + $300,000 = $10,300,000, and the total year 1 cost is $1,200,000 + $300,000 = $1,500,000, which is 15% of the original principal.
In year 2, cash interest = 12% x $10,300,000 = $1,236,000 and PIK = 3% x $10,300,000 = $309,000, taking the balance to $10,300,000 + $309,000 = $10,609,000. By comparison the $25,000,000 of senior debt at 7% costs $1,750,000 a year, which is less than the mezzanine cost on two and a half times as much money.Case study
Seen in the real world
Thornbury Precision is a fictional components manufacturer created to illustrate how mezzanine works in practice. Its management team wanted to buy the business from its founder for $40,000,000 and could raise $20,000,000 of senior debt and $12,000,000 of equity, leaving a shortfall of $40,000,000 - $20,000,000 - $12,000,000 = $8,000,000.
A mezzanine lender provided that $8,000,000 at 11% cash pay plus 4% PIK, with warrants over 5% of the equity. In year 1 the facility cost 11% x $8,000,000 = $880,000 in cash interest and added 4% x $8,000,000 = $320,000 to the principal, which the business serviced comfortably from EBITDA of $5,600,000.
Five years later, in this illustrative outcome, the company sold for $70,000,000. The mezzanine balance had compounded to roughly $9,700,000 through accrued PIK and was repaid in full, while the warrants over 5% were worth 5% x $70,000,000 = $3,500,000. The lender therefore earned a return well above what the senior bank made on more than twice the money.
Watch out
Common mistakes
- Assuming mezzanine is just expensive bank debt. The pricing reflects a genuinely different risk position, and the warrants mean the lender is partly an equity investor.
- Ignoring PIK accrual in the cash forecast. Interest that is not paid still compounds, and the balance at maturity can be far larger than the amount originally drawn.
- Treating mezzanine as dilution-free. Warrants and conversion rights transfer real ownership if the business succeeds, just later than an equity round would.
Questions
People also ask
Where does mezzanine sit if a company fails?
Behind senior secured lenders and ahead of ordinary shareholders, which in a poor outcome often means partial recovery at best.
Is mezzanine cheaper than equity?
Usually yes for a business that hits its plan, because the lender's return is capped by the interest rate and a limited warrant stake rather than an open-ended share of the upside.
What size of business uses mezzanine?
It is most common in mid-market transactions, typically where the company generates EBITDA of a few million dollars or more and needs $5,000,000 to $50,000,000 of additional funding.