Revised Basel III Rules Keep Banks Cautious on Mortgage Lending

Banks are unlikely to rush back into the mortgage market despite revised Basel III capital requirements, as regulatory caution and economic uncertainty continue to make home lending less attractive than other uses of capital.

The revised rules, which adjust how banks calculate risk-weighted assets for mortgage loans, were expected to ease some of the capital burden that had discouraged banks from holding mortgages on their balance sheets. But the adjustments are modest relative to the broader challenges facing the mortgage market.

Rising interest rates have already depressed mortgage demand, making new originations less profitable. Banks that do hold mortgages face interest rate risk — the value of fixed-rate loans declines when rates rise, creating potential losses on balance sheets.

The result is a mortgage market increasingly dominated by non-bank lenders, who aren't subject to the same capital requirements but also don't offer the same consumer protections. This shift has been gradual but significant, with non-banks now originating the majority of new mortgages.

For consumers, the practical impact is subtle but important. Bank mortgages may be harder to qualify for but offer more stability and consumer protections. Non-bank lenders may be more flexible but less predictable in their servicing practices.

What This Means For You: If you're looking to buy a home or refinance, don't expect banks to start competing aggressively for your mortgage business anytime soon. Shop both bank and non-bank lenders, understand the servicing differences, and lock your rate when you find a competitive offer — the market isn't going to get dramatically friendlier to borrowers in the near term.