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Housing economist warns of 8% mortgage rates after home sales disappoint

Homebuyers made fewer deals in August as rough housing conditions persisted. That may get even worse, one housing expert said.

Sales of previously owned homes declined 0.7% in August from the month prior to an annualized rate of 4.04 million, the National Association of Realtors said Thursday. That underperformed the 0.7% increase and 4.10 million annualized rate that economists polled by Bloomberg predicted.

The pace, which was down 15.3% from a year ago, is the third slowest of the current housing cycle, NAR chief economist Lawrence Yun said. Only the paces in January and December 2022 were slower.

The data underscores the muting effect higher mortgage rates is having on both buyers and sellers, a scenario that could get tougher soon.

"Mortgage rate changes will have a big impact over the short run, while job gains will have a steady, positive impact over the long run," Yun said in the a statement, before adding in the press call later that, "in the short run, it's possible that mortgage rates may go up to 8%."

Read more: Mortgage rates at 20-year high: Is 2023 a good time to buy a house?

Existing home sales in August reflect mortgage rates that were locked in during the months of June and July, when mortgage rates were just below 7%, said Realtor.com chief economist Danielle Hale.

"Since then, mortgage rates have climbed above 7% and since the Fed’s September projections keep another rate hike on the table, mortgage rates are not likely to drift lower in the absence of new data warranting a reconsideration of the outlook," Hale said in a statement. "This means that affordability headwinds that buyers face are likely to continue."

The average rate on the 30-year fixed mortgage has remained above 7% for five straight weeks, according to Freddie Mac. The latest data comes out at noon EDT Thursday.

While elevated rates make it more costly for buyers, it's also convincing many homeowners to stay put rather than sell.

According to Redfin, 91.8% of US homeowners with a mortgage have an interest rate below 6%; 82.4% have a rate under 5%; and 62% have a rate below 4%. That’s far below last week's rate of 7.18% and a good reason to avoid selling a home and lose a much more attractive rate.

That's evident in Thursday's data.

Only 1.1 million units were available for sale at the end of August, some 0.9% fewer than a month go and down 14.1% from one year ago, NAR reported. At the current sales pace, that represents 3.3 months of supply. At least 6 months are required to balance the market.