American homebuyers and homeowners are collectively incurring tens of billions of dollars annually in avoidable mortgage costs due to a widespread tendency not to shop around for better loan rates, according to recent research. This pattern persists even among higher-income borrowers and older individuals, groups traditionally viewed as financially savvy.
The analysis, conducted by Matt Fellowes and Jack O’Connor and based on data from 3.2 million mortgage originations, highlights a significant financial impact stemming from borrowers accepting the first mortgage offer they receive. The researchers estimate that those who purchased homes since 2022 are paying roughly $65 billion each year in excess mortgage expenses that could be mitigated by seeking more competitive rates. Given that mortgage rates have hovered in the mid-to-high 6 percent range—most recently averaging 6.54 percent for a 30-year fixed-rate loan—small differences in interest rates can translate into substantial lifetime costs.
Fellowes describes this dynamic as a “hidden homeownership tax,” emphasizing how even a fractional percentage point difference in interest rates over 30 years can add up to more than $78,000 for the typical borrower. The research identified that wealthier borrowers often pay more than necessary because they tend to rely on a single lender recommendation, frequently provided by real estate agents or financial advisors, rather than actively comparing multiple options. This contrasts with lower-income borrowers who benefit from regulatory protections incorporated into FHA and VA loans, such as fee caps that limit excessive charges.
Age also emerged as a key factor. Older borrowers typically engage in less mortgage shopping, particularly when refinancing, compared to younger homeowners. Refinancing presents an opportunity for borrowers to reduce costs by securing better rates, but the research shows adults under 35 are the most diligent in seeking favorable terms. Meanwhile, financially constrained borrowers—those close to their lending limits—often receive better pricing, as their financial situation compels them to explore options more thoroughly.
The findings suggest that financial comfort and strong credit profiles may dampen motivation to negotiate or shop for loans, leading to higher costs for those borrowers with the lowest debt relative to income. This complacency creates a scenario where more qualified borrowers effectively subsidize less savvy ones, widening disparities in mortgage expenses.
Overall, the study underscores the importance of comparison shopping in the mortgage process, particularly in a high-rate and high-priced housing market, as a critical step to reduce the long-term cost burden for American homeowners.