The Loan Maturity That Lenders Model as a Refinance: How Prepayment Lockout Periods, Defeasance Windows, and Exit-Timing Assumptions Create Forced-Hold Risk in Transitional Deals

The Structural Mismatch: Modeled Refinance vs. Actual Exit

When a lender structures a transitional deal, they embed a refinance assumption into the loan maturity. The logic is straightforward: the borrower stabilizes the asset over 3 to 5 years, the property reaches its target NOI, and at maturity, the borrower refinances into permanent debt at a lower rate. The lender extends at par or takes a take-out. This assumption lives in the underwriting memo, the stress case, and the loan committee presentation. It is also almost never questioned once the loan closes.

The problem is structural: a loan maturity is not the same as a refinance window. A lender models a specific moment in time when refinancing becomes possible. But the borrower's actual ability to exit, refinance, or sell depends on prepayment lockout periods, defeasance mechanics, market conditions, and the asset's actual performance. These constraints rarely align with the lender's timeline.

The result is forced-hold risk: capital locked into a deal longer than either party anticipated, driven not by economics but by mechanical loan terms and the gap between underwriting assumption and reality.

Prepayment Lockout Periods: The Window That Doesn't Open

Most transitional loans include a prepayment lockout period, typically 2 to 3 years. During this window, the borrower cannot refinance, sell, or exit without lender consent. The lockout protects the lender's yield and ensures the borrower has time to stabilize the asset. This is a standard risk-management tool.

But the lockout creates a mechanical constraint that often extends beyond the lender's own refinance assumption. A lender may model a 5-year maturity with the expectation that the borrower refinances in year 4. But if a 3-year lockout runs from closing, the borrower cannot legally refinance until year 3. If market conditions deteriorate in years 3 and 4, or if the asset underperforms, the borrower may not be able to refinance even when the lockout expires.

The borrower is now trapped: the lender's refinance assumption assumed the asset would be stable and refinanceable by year 4, but the borrower cannot refinance at all during the lockout, and by the time the lockout expires, the market may have moved or the asset may not yet be stabilized.

The lender faces a choice: extend the loan at similar terms, extend at higher rates, or demand repayment. The maturity that was modeled as a clean refinance becomes a negotiated extension under duress.

Defeasance Windows: The Refinance That Costs More Than Prepayment

Many transitional loans include defeasance language: the borrower can prepay early by depositing Treasury securities or cash into a defeasance account that matches the remaining loan payments. Defeasance allows the borrower to exit without a prepayment penalty, but only if the defeasance window is open and only if the borrower has the capital to fund it.

The structural problem is that defeasance often costs more than the borrower anticipated. If rates have risen since closing, the Treasury securities needed to match the loan payments cost more. The borrower must either accept the higher defeasance cost or wait for the lockout to expire and refinance at higher rates. Either way, the cost of exit has risen beyond the lender's original assumption.

More subtly, the defeasance window may close before the lockout expires, or the window may be narrow and time-sensitive. A borrower who misses the window loses the option to defease at a particular cost and must either wait for the lockout to expire or negotiate with the lender. The maturity becomes less of a fixed date and more of a series of conditional exit options, each with its own cost and timing constraint.

Lenders model defeasance as an exit valve that reduces refinance risk. In reality, defeasance creates another layer of timing risk: if the borrower cannot afford to defease and the lockout is still in place, the borrower is forced to hold the deal longer than expected.

Exit-Timing Assumptions: When the Model Meets Reality

The core issue is that lenders model a specific exit moment: the borrower stabilizes the asset, hits the NOI target, and refinances or sells at a predictable time. This assumption is embedded in the loan structure, the maturity date, and the stress case.

But actual exits are not calendar events. They depend on market conditions, tenant performance, capital markets availability, and the borrower's own capital situation. A borrower who planned to sell in year 4 may find that the market has softened, tenants have not renewed, or their own equity has been deployed elsewhere. The borrower needs more time.

The lender's refinance assumption assumed the borrower would exit at a specific moment. But the loan structure, through lockout periods and defeasance windows, constrains the borrower's actual exit options. The result is a mismatch: the borrower cannot exit when the lender modeled the exit, and by the time the borrower can exit, the economics have changed.

Lenders often respond by extending the loan at similar terms or at slightly higher rates. But this extension was not modeled in the original underwriting. The loan that was supposed to mature and refinance instead becomes a longer-duration hold, with the lender bearing the risk that the asset will eventually stabilize or that the borrower will eventually be able to refinance.

The Forced-Hold Risk: Who Bears the Timing Mismatch?

The structural question is: who bears the risk that the lender's refinance assumption does not match the borrower's actual exit window?

In theory, the borrower bears the risk. If the borrower cannot exit or refinance at maturity, the borrower must negotiate an extension or accept higher rates. The lender has the option to extend, refinance, or take a take-out.

But in practice, the risk is shared, and the sharing is asymmetric. The lender bears the risk that the asset will not stabilize in time to refinance. The borrower bears the risk that market conditions will deteriorate before the lockout expires. The lender's refinance assumption becomes a shared assumption, and if it proves wrong, both parties must negotiate a new outcome.

The forced-hold risk is the cost of this mismatch. It manifests as extensions negotiated at higher rates, defeasance costs that exceed original budgets, or refinances that occur at worse terms than originally modeled. It is a cost that neither party anticipated at closing, but both must bear.

Over cycles, this risk becomes structural. Lenders continue to model refinance assumptions that are tighter than the actual constraints built into loan documents. Borrowers continue to plan exits that do not account for the time required to satisfy lender refinance criteria. The mismatch repeats because the underlying structural constraints, lenders' refinance assumptions and borrowers' capital needs, are not aligned.

The Path Forward: Alignment and Clarity

The solution is not to eliminate prepayment lockouts or defeasance windows. These are legitimate risk-management tools. The solution is alignment: lenders should model a refinance window that accounts for the actual constraints built into the loan structure.

If a loan includes a 3-year lockout and defeasance costs are material, the lender's refinance assumption should reflect a year 4 or year 5 exit, not a year 4 exit that assumes the borrower can refinance at any time. If the asset is transitional and may not stabilize on schedule, the lender should model an extension scenario and price the extension risk into the original rate.

Borrowers should similarly account for the full cost of exit, including defeasance costs, refinance rate assumptions, and the possibility that the refinance window may be narrower than expected. A borrower who plans an exit in year 4 should ensure that the asset's NOI will support refinance at year 4 rates, and should budget for the possibility that refinance may occur in year 5 at higher rates.

The structural constraint is time: it takes time to stabilize an asset, time for the market to shift, and time for the borrower's capital plan to evolve. Loan structures that ignore this constraint and assume a clean refinance at a modeled moment create forced-hold risk that will eventually manifest as an extension negotiation, a refinance at worse terms, or a distressed sale.

What I'm watching next

• How many transitional loans originally modeled to mature and refinance in 2024 and 2025 are being extended at higher rates, and what the extension terms reveal about the gap between lender assumption and actual asset performance.
• Whether defeasance costs are rising faster than borrower budgets can absorb, and how that tightens the window for early exit before lockout expiration.
• Whether lenders begin to model extension scenarios and extension costs into original pricing, or whether they continue to assume clean refinances and absorb the mismatch cost when extensions occur.