Commercial Lending & Capital Markets

Demystifying Commercial Real Estate Prepayment Penalties: Yield Maintenance vs. Defeasance

How yield maintenance and CMBS defeasance work, what drives their cost, and why prepayment terms should match your hold period and exit plan.

October 7, 20266 min readBy Price Capital Group

In the institutional commercial real estate market, long-term, fixed-rate debt from a CMBS (Commercial Mortgage-Backed Securities) conduit or a life insurance company can give a sponsor a high degree of cash flow stability. Locking in a fixed rate for ten years can reduce the asset's exposure to interest rate volatility over the loan term.

That stability comes with a structural trade-off. Institutional lenders and bondholders price these loans around an expected stream of payments. If a sponsor sells or refinances in year four, early repayment changes the lender's expected yield. To address that, many fixed-rate commercial loans include prepayment provisions that can be costly.

Many residential mortgages can be repaid early with little or no penalty. Commercial real estate loans, by contrast, often use more complex prepayment mechanisms. Two of the most common, and often most expensive, are Yield Maintenance and Defeasance. Misunderstanding them can tie up a meaningful share of your equity when it is time to sell. This guide explains how commercial mortgage prepayment penalties are typically calculated and what a defeasance closing involves.

1. Yield Maintenance: The Mathematical Penalty

Yield maintenance provisions are designed to compensate a lender for the economic effect of early repayment. The concept assumes the lender reinvests the prepaid funds, often at a rate tied to U.S. Treasury yields, for the remainder of the original loan term. The exact formula, benchmark rate, discounting method, minimum charge, and payment requirements depend on the loan documents.

If the applicable benchmark rate is lower than the interest rate on your commercial mortgage, the reinvestment earns less than the loan would have. The yield maintenance charge is intended to cover that difference, and it is typically paid as a lump sum at payoff.

The Yield Maintenance Calculation

Individual loan documents vary, but a simplified version of the calculation compares the mortgage coupon rate with the applicable Treasury rate:

Penalty = Present Value of Remaining Loan Payments × (Mortgage Rate − Current Treasury Rate)

In a falling interest rate environment: Yield maintenance can be expensive for the borrower. In an illustrative example, a borrower with a 6% mortgage rate and a 3% applicable Treasury yield faces a 3 percentage point spread. In some loan structures, a large spread between the contractual mortgage rate and the applicable reinvestment benchmark can result in a substantial prepayment charge, in some cases a double-digit percentage of the outstanding balance (illustrative only).
In a rising interest rate environment: Yield maintenance is usually less painful. In an illustrative example, with a 4% mortgage rate and a 5% applicable Treasury yield, the lender could reinvest at a higher rate. If the contractual benchmark exceeds the mortgage coupon, the calculated yield-maintenance amount may be reduced, although many loan documents include a minimum prepayment charge or other floor, for example 1% of the outstanding balance (illustrative contractual floor).

For a related look at prepayment structures, including step-down penalties, see our guide to commercial loan prepayment penalties.

2. Defeasance: The Legal Substitution of Collateral

Defeasance is not technically a prepayment penalty. It generally substitutes qualifying securities or another permitted collateral package for the real estate collateral rather than simply paying off the loan. Defeasance is commonly associated with CMBS loans, although the actual prepayment and collateral-substitution rights depend on the specific loan documents. Securitized loans are pooled and sold to bondholders who expect a defined stream of payments, and many CMBS loans restrict or prohibit ordinary prepayment during much of the term.

If you want to sell a property with a CMBS loan that does not permit ordinary prepayment, the loan documents may require a defeasance to release the property.

The Mechanics of Defeasance

Depending on the loan documents, the borrower may acquire qualifying government securities structured to generate cash flows sufficient to satisfy the remaining scheduled debt service, including the balloon payment at maturity. Funds for the securities often come from the sale or refinance proceeds.

The securities portfolio is then substituted as collateral for the loan, and the lien on the real estate is released so the property can be sold or refinanced. The original loan generally remains outstanding, but it is now secured by the securities rather than the property.

The Hidden Friction Costs

A defeasance can involve multiple specialized parties depending on the loan, servicing structure, securitization requirements, and transaction documents. Common participants can include:

A Defeasance Consultant to source and structure the securities portfolio.
A Successor Borrower, often a newly formed entity, to assume the loan and the securities portfolio.
A Securities Intermediary or custodian to hold the securities and remit payments.
Legal counsel and the loan servicer to review and document the substitution.
Rating Agency Review, where the pooling documents require confirmation that the substitution will not affect the bond ratings.

Third-party costs can be significant and may include consulting, legal, securities, servicing, successor-borrower, and administrative expenses. As an illustrative, transaction-dependent figure, these fees can run in the range of $50,000 to $100,000, separate from the cost of the securities themselves. This is not a Price Capital Group fee estimate.

As Jason highlights in Why Most Businesses Fail Before They Even Start, failing to anticipate frictional costs when planning an exit can materially reduce net proceeds at closing.

3. The Underwriting Impact on Future Liquidity

When acquiring a commercial property, sponsors should weigh the cost of capital against future liquidity needs. Loan structure should match the expected hold period and exit strategy.

Consider a heavy value-add plan, such as repositioning an underperforming industrial park and selling it in about thirty-six months. A borrower expecting a shorter hold period should carefully evaluate prepayment provisions before choosing long-term fixed-rate debt, because defeasance or yield maintenance costs can absorb a meaningful portion of the value created. For shorter business plans, some sponsors consider more flexible capital, such as the structures discussed in Private Money Lending: 3 Deals, 3 Answers. Flexible capital may offer lighter prepayment terms in exchange for a higher rate, but terms vary by lender.

A sponsor planning a longer hold, such as a stabilized multi-tenant asset with no plans to sell for a decade, may place greater value on fixed-rate certainty, but the appropriate structure depends on pricing, flexibility, prepayment terms, and the business plan.

4. Navigating the Exit and Direct Cash Liquidation

Selling a property encumbered by a CMBS loan requires coordinating the sale with the loan release process. When the buyer also depends on new bank financing, two separate timelines, the buyer's loan approval and the defeasance or payoff, have to line up, and delays on either side can affect the closing.

A direct transaction may reduce dependence on acquisition financing and can provide greater control over closing coordination, which can be useful when a defeasance or other loan-release process must occur simultaneously. A direct sale may also reduce or avoid some brokerage costs, depending on how the transaction is structured. Closing remains subject to diligence, title, loan-servicer requirements, defeasance documentation, payoff mechanics, and the negotiated purchase agreement.

To see how buyers may analyze your property's yield, test your figures in our cap rate calculator. If you are navigating a CMBS defeasance or want a confidential acquisition evaluation to exit a yield maintenance structure, Submit a Property to our acquisition team for a confidential review. For a broader look at private transactions, read our guide on selling commercial property off market.