In practice
Mezzanine is usually documented as a separate subordinated loan or note, governed by an intercreditor agreement with the senior lenders that limits its repayment rights and enforcement. It is typically unsecured or secured only by a second lien, and it is often bullet-repaid after the senior debt matures. It is sometimes confused with preferred equity, which is an ownership instrument rather than a loan.
An example
Round numbers, not a real fundSay a buyout is financed with $100 million of senior loans, $30 million of mezzanine and $70 million of equity. Mezzanine is repaid after the loans and before the equity.
Why it matters
It fills the gap between a company’s senior debt and the equity cheque in a buyout.
A definition, not advice; where usage varies the entry says so. Something wrong? Tell the desk.