High mortgage rates cool existing-home sales even as inventory reaches a decade-high months’ supply

August existing-home sales: the headline numbers

The August Existing-Home Sales release shows a market that’s still struggling to turn shopper interest into closed transactions. Total existing-home sales (single-family, condos, and co-ops) fell 2.0% in August to a seasonally adjusted annual rate of 3.98 million, and were down 1.2% from a year earlier. [nar.realtor]

A sub-4.0 million annual pace isn’t just a psychological threshold; it’s often a sign that affordability and financing conditions are limiting how many buyers can qualify at today’s prices.

Inventory improved — and that changes the balance of power

Supply is no longer the only story. NAR reported 1.62 million homes for sale in August, up from July, and a 4.9 months’ supply reading (up from 4.6 months in July). [nar.realtor]

Higher months’ supply usually brings a more negotiable market: fewer bidding wars, more inspection-friendly contracts, and more room for seller concessions. But improved inventory won’t necessarily translate into higher sales right away if rates keep monthly payments elevated.

Prices are still rising nationally, so the slowdown is about volume

Even with sales slowing, national prices remain firm. NAR reported the median existing-home price at $429,100 in August, up 1.6% year over year. [nar.realtor]

NAR also reported the median time on market at 31 days in August, up from 29 days in July, which aligns with a market that’s clearing more slowly. [nar.realtor]

The key question for the next few reports is whether price growth cools further as months’ supply stays higher—and whether more sellers adjust expectations through concessions rather than list-price cuts.

Mortgage rates remain the biggest lever

Rates are still the main “on/off switch” for demand. AP reporting based on Freddie Mac’s weekly survey showed the average 30-year fixed mortgage rate at 6.76% as of September 10, 2026 (up from 6.71% the week before). [apnews.com]

In practice, even small moves in rates can shift a buyer’s monthly payment and qualification, which is why transaction volume can fall even when inventory improves. Until borrowing costs ease meaningfully, the data suggests the market will keep adjusting via slower sales rather than a rapid national price reset.

For buyers, the near-term opportunity is selection and leverage. For sellers, the playbook is to price tightly to comps, expect more negotiation, and plan for rate-related deal friction (credits, buydowns, and appraisal sensitivity) to matter more.