Mezzanine debt is a subordinated loan that sits behind senior debt and ahead of equity. It is priced as a blend: cash interest paid currently, PIK interest that is added to the balance, and often warrants that give the lender a small share of the equity upside. It usually has no scheduled amortization and is repaid at maturity or on a sale. Owners use it when senior lenders will not go far enough and they would rather not sell a large stake. It beats more equity when earnings can service it and the company is growing in value.
- Position
- Behind senior debt, ahead of equity
- Security
- Unsecured or a second lien, subordinated by agreement
- Pricing
- Cash interest, PIK interest and often warrants
- Repayment
- Usually at maturity or on a sale, after the senior loan
- Beats more equity when
- Earnings can service it and the company is growing in value
Where mezzanine sits
Picture the capital structure as a stack. Senior debt is at the bottom: first claim on the assets and the cash flow, lowest cost. Equity is at the top: paid last, owns the upside. Mezzanine sits between them. If the business is sold or fails, mezzanine lenders are paid after senior lenders and before the owners. That position is why it costs more than senior debt and less than equity.
In practice mezzanine appears when a deal needs more debt than senior lenders will provide. Senior cash-flow lenders to lower-middle-market companies commonly lend 2x to 3.5x EBITDA. If an acquisition or a recapitalization needs more than that, and the owners do not want to fill the gap with equity, mezzanine can take the next layer. The main alternative for the same layer is a unitranche loan, which covers senior and subordinated risk in one facility at one blended rate.
How mezzanine is priced
A mezzanine lender targets a return between what senior lenders earn and what equity investors expect. It builds that return from several parts, and the mix matters as much as the total.
| Component | How it works | What it means for the company |
|---|---|---|
| Cash interest | Paid currently, usually monthly or quarterly | Counts in debt service from the first payment and is tested in coverage |
| PIK interest | Paid in kind: added to the loan balance instead of paid in cash | Eases cash flow now; the balance grows and is repaid at maturity or on a sale |
| Warrants or equity co-investment | A right to buy a small share of the equity, or a direct stake alongside the owners | Dilutes ownership and gives the lender part of the value created |
| Fees and call protection | An upfront fee, and a premium for repaying early | Raises the true cost and makes an early refinancing expensive |
Owners who compare mezzanine with a bank loan on the cash rate alone understate its cost. The honest measure is the all-in return the lender expects, including PIK that compounds and warrants valued at what the company is likely to be worth when they are exercised. A warrant that looks cheap on today's value can become the most expensive part of the loan if the company grows the way its owners plan.
The intercreditor agreement is where the real terms are
When a company has both senior and mezzanine debt, the two lenders sign an intercreditor or subordination agreement. The company is bound by it, and it decides what happens when things go wrong. The provisions that matter most:
- Payment blockage. If the company misses a senior payment, the senior lender can stop cash payments to the mezzanine lender until the default is cured. After a covenant default it can block them for a set number of days, usually only so many times a year. PIK keeps accruing in the meantime.
- Standstill. After a default, the mezzanine lender cannot accelerate its loan or enforce against the company for a set period, giving the senior lender room to work things out first.
- Turnover. Anything the mezzanine lender receives in breach of the agreement must be handed over to the senior lender.
- Caps on senior debt. The mezzanine lender limits how much senior debt can be added ahead of it, which can constrain a later line increase or an add-on acquisition.
- Amendment consents. Changes to the senior loan that hurt the mezzanine lender, such as a higher rate or an earlier maturity, may need its consent.
These terms decide how much room the company has in a bad year. A mezzanine lender with a short standstill and broad consent rights can complicate a covenant reset with the senior lender, because any fix needs two signatures instead of one. Read the intercreditor agreement with the same care as the loan documents. What to do when you breach a covenant covers how those negotiations run.
Maturity, covenants and control
Mezzanine usually matures after the senior debt, so the senior lender is repaid first. Its financial covenants track the senior lender's with a cushion, so that a senior default comes before a mezzanine one. Some mezzanine lenders take a board observer seat or information rights beyond the senior lender's. None of that is unusual.
What owners of family and founder-run businesses should understand is the warrant. A mezzanine lender holding warrants has a stake in when and how the company is eventually sold. Warrants often come with a put right: after a set point, the lender can require the company to buy them back at an agreed valuation. That means the company needs cash, or a refinancing, to meet the put, whether or not the owners are ready to sell. Negotiate the valuation method and the timing of the put as carefully as the interest rate.
When mezzanine beats more equity
The real choice is usually between mezzanine and selling a larger stake to an equity investor. Mezzanine tends to win when:
- Earnings are stable enough to pay the cash interest after senior debt service, with coverage to spare on the whole stack.
- The company expects to grow in value, so a small warrant costs the owners less than a large equity stake would.
- The owners want to keep control. A mezzanine lender's rights are contractual and fall away when it is repaid; an equity partner's do not.
- There is a clear route to repayment at maturity: a sale, a refinancing once the business has grown into its debt, or accumulated cash.
Equity tends to win when earnings are volatile, when the business needs to reinvest most of its cash, or when there is no clear way to repay the mezzanine at maturity. Debt that cannot be refinanced when it comes due is a larger risk to the owners than dilution.
Mezzanine is cheap equity or expensive debt. Which one it turns out to be depends on whether the plan works.
The lower-middle-market reality
Mezzanine funds have minimum deal sizes, and many smaller companies fall below them. Many of the funds that do lend at this size are licensed by SBA as Small Business Investment Companies, which raise part of their capital with SBA backing. Their loans are not SBA loans: the 7(a) guaranty, equity injection and personal guarantee rules do not apply, though the company must meet SBA's size standards. Below the funds' minimums, the same layer of the capital structure is usually filled another way.
| Option | Where it fits | Watch for |
|---|---|---|
| Seller note | Acquisitions where the seller will defer part of the price | Behind an SBA loan it counts toward the equity injection only on full standby for the life of the loan, and for no more than half of it |
| Unitranche | Deals large enough for private credit funds | A higher blended rate on the whole balance, and call protection |
| SBA 7(a) | Acquisitions that fit within the $5 million 7(a) limit and SBA's rules | An equity injection of at least 10% for a change of ownership, and personal guarantees |
| Preferred equity | Owners who want no fixed repayment date | A preferred return ahead of the common owners, and investor rights |
| More common equity | Volatile or reinvestment-heavy businesses | Permanent dilution and shared control |
Seller notes in particular do much of the work in smaller deals that mezzanine does in larger ones: they are subordinated, flexible, and priced by negotiation with a seller who wants the deal to close rather than by a fund's return target. A seller note that is not on standby counts in debt service like any other loan, and one that comes due before the senior loan may need to be refinanced.
What a mezzanine lender needs to see
A mezzanine lender reads the file first like a senior lender and then like an equity investor. It wants the historical figures, a year-to-date P&L, the debt schedule and every add-back documented. Then it wants a view of the company's value at exit and how its warrant is protected. The lender presentation has to answer both sets of questions.
Transparent's lender package — financing model, lender presentation, blind teaser and underwriting memo — models the full stack, including the PIK balance over time and coverage on senior and mezzanine debt together, so both lenders work from the same numbers. Of the 1,800+ lenders in the book, 1,148 write term and private credit.
Common questions
- Is mezzanine debt secured?
- Sometimes. It may be unsecured, or hold a second lien behind the senior lender. Either way it is subordinated by agreement, so in practice it is paid only after the senior debt.
- Does mezzanine interest count in the coverage ratio?
- The cash interest does, and lenders test coverage on the whole stack. PIK interest needs no cash now, but it adds to a balance that has to be repaid or refinanced later, and lenders count that balance in total leverage.
- What happens to the warrants when I sell the company?
- They are usually exercised or settled at the sale, and the lender receives its share of the proceeds. If there is no sale, a put right may let the lender require the company to buy them back after a set point.
- Can I repay mezzanine early?
- Usually, with a prepayment premium in the early years. Warrants typically survive repayment unless the agreement says otherwise, so repaying the loan does not end the lender's equity interest.
- Is mezzanine the same as a second-lien loan?
- Not quite. A second-lien loan is secured debt, usually priced with cash interest and no warrants, and it ranks behind the first lien on the collateral. Mezzanine is typically unsecured or more deeply subordinated, and earns part of its return from equity.