September 2026 Builder Applications: Share vs. Volume

September 2026 builder applications fell 8% from August while conventional and VA loans gained share. A larger share of a shrinking total can still mean fewer applications—a distinction builders need before changing financing capacity. The Mortgage Bankers Association (MBA) published these unadjusted figures in its October 15, 2026, release.

How share can rise while volume falls

A loan category's share divides its applications by total applications. To understand what happened to its volume, both the share and the total matter. For a normalized illustration, set August's total applications to 100 index units. September's 8% decline reduces that total to 92.

The table applies MBA's published shares from the August release, published September 15, and its October release to those totals. August's product units equal its percentage shares because the starting total is 100.

Normalized illustration, not actual application counts. Calculations assume comparable survey coverage and use the published rounded inputs without rescaling them; August's shares total 100.1%. The implied changes are approximate and are not separately reported MBA product-volume statistics.

For conventional loans, the calculation is 92 × 50.2% = 46.184 units, compared with 49.5 in August. Conventional share gained 0.7 percentage point, yet its implied volume fell about 6.7%. VA shows the same pattern. FHA lost both share and implied volume.

A lender could therefore need a greater proportion of its capacity assigned to conventional files while needing fewer total processing hours. Actual workload still depends on active files, their complexity and how long they remain open.

Applications and sales estimates measure different things

September applications were also down 8.3% from a year earlier. The August release had reported a 5.5% annual decline and a 6% decline from July. The monthly application changes are not seasonally adjusted. MBA's October 15 release separately estimates September sales at:

• 584,000 at a seasonally adjusted annual rate, down 12% from August's 664,000.
• 47,000 for the month without seasonal adjustment, down 9.6% from 52,000.

The annualized figure expresses a pace, not the number sold during September. Neither sales estimate is the survey's application count.

The August release describes the Builder Application Survey (BAS) as tracking applications from mortgage subsidiaries of homebuilders nationwide. MBA estimates new single-family sales using application information, assumptions about market coverage and other factors. That additional estimation step matters: participating lenders' applications do not directly count every new-home purchase, including cash purchases.

The public releases provide no respondent roster or community-level results, and insufficient modeling detail to reproduce the sales estimate. They cannot establish that a particular builder's customers changed preferences. Compare this financing signal with new-construction activity before using it in a production forecast.

FHA share cannot count first-time buyers

MBA's Joel Kan attributed September's weakness to higher mortgage rates and interpreted lower FHA share and a higher average loan size as signs of pressure on first-time buyers. MBA's commentary supplies an explanation, not a direct count of those buyers.

There is evidence for the association between FHA lending and first-time buying. HUD's January 2, 2026, release reported that first-time buyers accounted for more than 83% of FHA forward purchase endorsements in fiscal 2025, with a historical share of 75%–85%. These are insured mortgages, a different measurement stage from applications.

Those figures cover FHA purchase lending broadly, not September's new-home applicants. They cannot convert the BAS FHA percentage into a first-time-buyer count. Measuring first-time participation requires borrower-history information across loan categories.

Nor do the MBA releases isolate why the mix changed. Price points, communities represented and financing offers are possible influences to investigate, not survey findings. A higher average loan amount alone cannot distinguish changing customer composition from a change in what comparable buyers borrowed.

What builders should check before changing a forecast

Separate pipeline events: applications are financing requests, signed contracts are orders, cancellations are exits from those orders, and closings are completed transactions. The MBA release notes that Census new-home sales are recorded at contract signing, typically near the mortgage application. An application and a contract can overlap in time; neither establishes that the purchase has closed.

Match records by buyer and property, then follow each month's applicants through later outcomes. Dividing this month's closings by this month's applications can mix different groups of buyers. When reviewing fallout, specify which cancellation-rate denominator is being used.

Before changing incentives, staffing or a sales forecast, assemble three local comparisons:

• Financing conversion: application counts, approvals, withdrawals and eventual closings by product, community and price band. Include first-time status as its own field.
• Offer economics: incentive cost, quoted payments and cash needed to close, alongside whether comparable buyers signed and completed purchases. Evaluate any conversion gain against the margin sacrificed.
• Delivery capacity: active files, expected closing dates, construction readiness and completed unsold homes. Compare competing supply through housing inventory and sales reports.

A hypothetical community with steady applications but more financing-related cancellations needs a different response from one with fewer visitors and unchanged conversion. Use matched local records to identify whether the difficulty lies in attracting buyers, qualifying them or completing their purchases.