CMBS Market Navigates Maturing Loans & Defeasance Shifts

By Majid Radaei, RadCRE · · Market Updates

Amidst persistent high interest rates, the CMBS market is grappling with a wave of maturing loans and a notable shift in defeasance strategies, impacting commercial real estate owners.

CMBS Market Faces Maturing Debt Wall Amidst High Rates

The commercial mortgage-backed securities (CMBS) market continues to navigate a challenging landscape dominated by persistent high interest rates and a significant volume of maturing debt. As of Q1 2026, Trepp data indicates that approximately $60 billion in CMBS loans are slated to mature this year, a substantial portion of which originated during the pre-pandemic low-interest rate environment. This 'maturity wall' is forcing borrowers to contend with materially higher refinancing costs, with the benchmark SOFR hovering around 4.31% and Prime at 8.50%.

Many legacy CMBS loans were underwritten with interest rates significantly lower than today's market, creating a substantial disconnect when borrowers seek to refinance. This disparity is particularly acute for properties in segments like office, which have seen sustained occupancy challenges, or certain retail assets facing headwinds. While overall CMBS delinquency rates remain relatively contained compared to the Global Financial Crisis, they have shown a steady uptick. The Mortgage Bankers Association (MBA) reported a slight increase in CMBS delinquency rates for Q4 2025 across all property types, notably in the office sector, which saw its delinquency rate rise to over 6%.

Defeasance Trends and the Cost of Exit

Defeasance, a common exit strategy for CMBS borrowers, involves substituting the collateral property with U.S. Treasury securities that generate sufficient cash flow to cover the remaining debt service. This mechanism traditionally offered a predictable path for borrowers to sell or refinance their properties prior to loan maturity without triggering prepayment penalties. However, the current interest rate environment has dramatically altered the economics of defeasance.

The cost of defeasance is directly linked to the spread between the loan's coupon rate and the prevailing Treasury rates. With Treasury yields now considerably higher than many legacy CMBS loan coupons, the price of the substitute government securities needed to match future debt service payments has increased significantly. This has made defeasance a far more expensive proposition, leading some borrowers to explore alternative strategies like loan assumption or even allow for special servicing if the property's performance cannot support a viable refinance or costly defeasance. For example, a trophy office tower in Midtown Manhattan that secured a $400 million CMBS loan in 2016 at a 4.2% coupon would face an exceptionally high defeasance cost today, potentially dissuading a sale until closer to maturity or opting for a more complex refinancing solution.

CMBS Spreads and Market Liquidity

Despite the challenges, the CMBS market has shown pockets of resilience. New issue CMBS spreads have stabilized somewhat after widening considerably through 2023. Recent benchmark transactions for highly rated (AAA) conduit CMBS have been observed in the T+150 to T+180 bps range, a noticeable improvement from wider spreads seen in mid-2024. However, subordinate tranches continue to require wider spreads, reflecting ongoing investor caution regarding credit performance, particularly in transitional assets or those with upcoming maturities.

Investor appetite remains selective, favoring properties with strong in-place cash flows and sponsors with proven track records. The dearth of new originations in the conduit CMBS market has also contributed to a demand-supply imbalance for institutional investors seeking structured credit exposure. According to CoStar, overall CMBS issuance for Q1 2026 was down approximately 20% year-over-year, reflecting tighter underwriting standards and a more conservative lending environment.

RadCRE Perspective

Majid Radaei, Founder of RAD Commercial Realty, notes, "The current CMBS landscape is a minefield for the unprepared but a goldmine for those who understand how to navigate it. We're seeing a significant bifurcation: well-capitalized owners of prime assets still have options, albeit at higher costs. For those with maturing CMBS loans on assets that have underperformed, particularly in the office sector, the traditional defeasance model is often uneconomical. The capital required for defeasance can sometimes outweigh the value proposition of selling, especially if the property has experienced significant cap rate expansion. We're actively working with clients to explore creative capital stack solutions, including preferred equity or mezzanine debt at 12-18% for recalibration, or even advising on strategic defaults in scenarios where the debt quantum makes recapitalization untenable. When refinancing, we're finding bridge loan financing at SOFR + 300-600 bps can provide crucial breathing room to stabilize an asset before seeking more permanent financing. The key isn't just to source capital, but to structure a solution that truly aligns with the asset's current performance and future potential, rather than forcing a square peg into a round hole." Radaei adds, "For hotel investors, in particular, understanding the nuances of CMBS defeasance versus standard prepayment options is paramount when evaluating pre-existing debt. Many are overlooking the significant impact of the loan's original yield maintenance or defeasance provision on exit strategies, which can make or break a deal's internal rate of return in this rate environment."

RadCRE continues to advise clients on sophisticated financing strategies, leveraging our expertise in capital markets to navigate the complexities of maturing CMBS debt, property dispositions, and optimal capital stack structuring in today's dynamic commercial real estate environment.

Tags: commercial real estate financing, CMBS market, loan defeasance, maturing debt, CRE capital markets, hotel investment sales

Sources: Trepp, Mortgage Bankers Association, CoStar, Commercial Observer