Housing News

Why the Bond Market Helps Determine Mortgage Rates and What Homebuyers Can Afford

One of the biggest influences on which way mortgage rates move isn’t the housing market. It’s what’s going on in the bond market.

The key determining factor is the 10-year U.S. Treasury yield. It’s a benchmark that reflects what investors earn for lending money to the federal government for a decade.

When Treasury yields rise, mortgage rates generally follow. When they fall, mortgage rates often have room to come down, potentially making homeownership more affordable.

The connection is particularly important in today’s market, according to Ryan Schoen, an analyst at New American Funding (NAF). In his latest Weekly Insights report, Schoen noted that the 10-year Treasury yield had hovered near 5.24%, contributing to mortgage rates in the 7% range.

“None of this is permanent,” wrote Schoen. “A meaningful decline in the 10-year or a sustained drop in realized volatility would reopen buying power quickly.”

In other words, improving bond market conditions could create opportunities for homebuyers if mortgage costs begin to ease.

Here’s what homebuyers should know about what influences mortgage rates, how much a lower rate could help them afford, and ways to make the most of their budgets.

What could help mortgage rates come down?

Beyond the direction of Treasury yields, Schoen is watching volatility in the bond market.

When markets are more stable, investors may require less compensation. This could help drive mortgage rates down.  

Although there’s no guarantee of when rates will decline, even a modest improvement could make a meaningful difference in what homebuyers can afford.

How much home can you afford at different mortgage rates?

Knowing how mortgage rates affect your purchasing power can help you set a realistic budget and recognize opportunities in the housing market.

“Put the rate environment into dollars and the picture becomes personal,” wrote Schoen.

The typical U.S. household could afford a more expensive home at a lower rate. For example, with a 7.03% rate, they could afford a $375,203 home, compared to a $404,509 property at a 6.30% rate.

The figures, based on mortgage rates recorded between September 2025 and September 2026, show that a difference of less than half a percentage point can shift a household’s purchasing power by about $30,000.

Understanding those numbers can help homebuyers determine a comfortable price range, evaluate financing options, and make informed decisions when they find the right home.

What else could help make homeownership more affordable?

Mortgage rates are only part of the equation. Home prices, seller incentives, down payments, and the type of mortgage a homebuyer chooses can also affect affordability.

Schoen emphasized that pricing matters, particularly when homebuyers are weighing the cost of borrowing against their monthly budgets.

“Sellers need realistic pricing that reflects the buyer’s reduced capacity,” he wrote.

Depending on local market conditions, homebuyers may be able to negotiate a lower purchase price or ask sellers to contribute toward closing costs.

Several financing options may also help homebuyers make the most of their budgets:

• Mortgage rate buydowns: A temporary or permanent interest rate buydown may help reduce the rate and monthly payment.
• Adjustable-rate mortgages (ARMs): These loans may offer a lower initial rate than comparable fixed-rate mortgages for the first years of the loan. However, the rate and payment changes after the introductory period based on the current market
• Different loan programs: Conventional, Federal Housing Administration (FHA), U.S. Department of Veterans Affairs (VA), and U.S. Department of Agriculture (USDA) loans offer different down payment requirements and qualification options.

Comparing monthly payments at different purchase prices and mortgage rates, including the potential savings from seller concessions or a buydown, can help homebuyers determine which options fit their budget.