Builder Confidence Falls to 12-Month Low as Mortgage Rates Squeeze Buyers

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U.S. homebuilder confidence fell to a 12-month low in September as higher mortgage rates and persistent affordability pressure pushed more builders to cut prices and lean on incentives to move new homes.

The NAHB/Wells Fargo Housing Market Index dropped three points to 32 from 35 in August, according to data released Wednesday. Any reading below 50 indicates that more builders view market conditions as poor than good.

The decline comes at an especially sensitive moment for housing. Long-term borrowing costs have moved sharply higher, the 10-year Treasury yield has pushed through the 5% threshold, and the Federal Reserve is set to announce its latest interest-rate decision Wednesday afternoon. For builders already contending with expensive financing and cautious buyers, the September survey shows the pressure is increasingly reaching sales offices.

More builders are cutting prices

Thirty-eight percent of builders reported cutting home prices in September, according to Reuters’ report on the new NAHB data. The average reduction remained 6%, while 66% of builders said they were using sales incentives.

That marks a notable step up from August. NAHB reported last month that 35% of builders were cutting prices and 63% were using incentives. The average price reduction was also 6% in August.

The incentive numbers matter because builders have more flexibility than most existing-home sellers to respond to affordability pressure. Large builders can offer mortgage-rate buydowns, closing-cost assistance and other concessions alongside outright price reductions. Those tools have helped the new-home market compete for buyers even as borrowing costs remain elevated, but the September results suggest builders are having to work harder to generate demand.

Builder sentiment had shown a modest improvement in August, when the HMI rose one point to 35. At that time, the index measuring current sales conditions increased to 39, expectations for sales over the next six months held at 43 and prospective-buyer traffic remained at 23. September erased that improvement and pushed the headline index back to its weakest level in a year.

Mortgage rates are again dictating the housing conversation

The deterioration in builder confidence follows a renewed rise in mortgage rates. Freddie Mac’s weekly survey put the average 30-year fixed mortgage at 6.76% on Sept. 10, but more current daily measures have shown rates moving above 7% as Treasury yields climbed.

That reversal has changed the backdrop for builders. Earlier in 2026, lower mortgage rates offered some hope that affordability conditions would improve enough to draw sidelined buyers back into the market. The recent bond-market selloff has moved in the opposite direction.

WRE News reported this week that the 10-year Treasury yield crossed 5%, an important benchmark because mortgage rates tend to track longer-term Treasury yields more closely than the Federal Reserve’s overnight policy rate. The move has put fresh upward pressure on mortgage pricing just as the Fed reaches its September policy decision.

For builders, the impact extends beyond what buyers pay on a mortgage. Higher interest rates also affect acquisition, development and construction financing, raising carrying costs on land and projects while demand is being constrained on the other side of the transaction.

A difficult mix of demand and construction costs

Affordability is not the industry’s only problem. Builders continue to report pressure from material and fuel costs, tight credit and labor constraints. Reuters reported that builders are also confronting higher costs tied to tariffs and labor disruptions associated with tighter immigration enforcement.

Those supply-side pressures complicate the industry’s response to weak demand. Cutting prices or buying down a buyer’s mortgage rate can support sales, but both strategies reduce margins at a time when construction and financing expenses remain elevated.

The September HMI therefore provides a useful read on more than builder psychology. The growing use of concessions is evidence of the price builders are paying to keep buyers engaged in a market where monthly payments remain difficult for many households.

The next test arrives quickly. The Federal Reserve’s policy announcement Wednesday afternoon could move Treasury yields and mortgage pricing again, depending not only on the rate decision but on policymakers’ guidance about inflation and the path of interest rates. A Fed move does not translate mechanically into lower mortgage rates; bond investors’ reaction to the decision will be critical.

For housing professionals, that leaves the September builder survey as a snapshot of a market already under renewed strain before the Fed has even spoken. If long-term yields remain near current levels, builders may have little choice but to keep using price cuts, rate buydowns and other incentives to compete for a limited pool of buyers.