Rising Mortgage Default Risk in 2025: A Sign of Economic Stress?

As economic pressures continue to weigh on American households, signs of strain are beginning to show in the mortgage market. A new report from Milliman, Inc. reveals that mortgage default risk is on the rise an indicator that financial conditions are tightening for many U.S. borrowers.

According to the Q1 2025 Milliman Mortgage Default Index (MMDI), the risk of serious mortgage delinquency defined as being 180 days or more past due increased from 2.05% in Q4 2024 to 2.13% in Q1 2025. While this jump may appear small on the surface, experts suggest it could be the first signal of broader financial stress brewing in the housing market.

“We’re seeing borrowers with slightly weaker credit profiles and heavier debt burdens compared to the previous quarter,” said Jonathan Glowacki, Principal at Milliman. “While overall loan quality is still strong, continued economic uncertainty could make it harder for some borrowers to stay current.”

🔍 What’s Behind the Uptick in Default Risk?

The rise in default risk isn’t just about one factor it’s the result of several shifts in borrower behavior and broader economic conditions:

1. Borrower Risk: Up from 1.40% to 1.43%

Borrowers entering the market in early 2025 are, on average:

• Carrying higher debt-to-income (DTI) ratios
• Putting down smaller down payments
• Holding lower average FICO credit scores

These shifts suggest that many buyers are stretching their budgets to afford a home, potentially leaving them more vulnerable if financial conditions worsen.

2. Economic Risk: Increased from 0.64% to 0.68%

Economic risk is based on home price projections. While housing prices are still expected to appreciate nationwide, the pace of growth is slowing significantly, increasing the chances that homeowners will be underwater if values stagnate or dip.

Refinancing Trends Reveal a Mixed Picture

Refinance activity in early 2025 paints a nuanced picture of risk in the mortgage market:

• Rate/Term Refinancing remains relatively low-risk, offering homeowners lower payments without tapping equity.
• Cash-Out Refinancing, however, is on the rise and it’s inherently riskier, especially as consumers draw on their home equity to cope with rising living costs.

In total, refinance loan volume in Q1 2025 reached $34 billion, with $18 billion from rate/term loans and $16 billion from cash-out refis. The average underwriting risk for refinance loans increased slightly, rising from 0.24% to 0.30% compared to Q4 2024.

🏘️ Home Values Cooling—But Not Crashing

While fears of a housing market collapse have so far been avoided, appreciation is slowing. Milliman reports that home prices are expected to grow only slightly in the next 12 months, a far cry from the double-digit increases seen during the pandemic years.

This slower growth reduces the equity cushion for recent buyers, making it harder to refinance or sell quickly in the event of financial trouble.

Why This Matters

This seemingly modest increase in mortgage default risk carries real-world implications:

• Borrowers are becoming more financially fragile.
  Many are taking on higher monthly obligations, relying on credit, and entering the housing market with thinner safety nets.
• Lenders must remain cautious.
  Even with strong underwriting standards, lenders will need to monitor economic conditions and borrower profiles closely as risk factors evolve.
• Homeowners could face rising costs.
  Higher insurance premiums, increasing utility bills, and property tax hikes may combine with mortgage payments to push some homeowners past their financial comfort zones.
• The market is entering a wait-and-see period.
  While there’s no imminent crisis, the market is clearly more sensitive than it was just a few quarters ago.

💬 Expert Insight

Glowacki emphasizes that while the loan quality for GSE-backed loans remains solid, the trend line deserves close attention.

“When you start seeing even subtle increases in borrower and economic risk at the same time, it’s important not to brush it off,” he said. “These are the conditions that if left unaddressed can become tipping points later.”

What to Watch in the Coming Months

Here are a few key indicators that could impact default risk in the near future:

• Job market trends: A weakening labor market would put added strain on already stretched borrowers.
• Federal Reserve policy: If interest rates remain high or increase further, refinancing becomes less attractive, and adjustable-rate borrowers could feel the pinch.
• Home price corrections: While unlikely to crash, even modest price drops could limit equity and increase risk.
• Natural disasters and insurance costs: With rising premiums, some homeowners may be forced to reduce coverage or face unaffordable bills.

Final Thoughts

The mortgage market isn’t in crisis but it is shifting. A small increase in the Milliman Mortgage Default Index is a quiet warning that borrowers are feeling the squeeze. With higher debts, slower home price growth, and economic uncertainty, lenders and policymakers alike should be paying close attention.

The story moving forward will be whether the market can adapt to these early warning signs or if they foreshadow deeper turbulence ahead. For direct financing consultations or mortgage options for you visit 👉 Nadlan Capital Group