Car Wash Feasibility Study in Idaho

What SBA's own loan files show about car wash lending in Idaho, and what a feasibility study for a project there has to test.

Large tickets and a high cancellation floor

Idaho car washes are financed in large amounts. The FY2017 through FY2026 files list 32 loans for the class, adding up to $45.9 million gross, and a median loan of $1.3 million that is 1.46x the national figure for car washes. Half of all loans fall between $373,250 and $2.1 million. That size reflects land, tunnels and equipment, which is why the program split is nearly even: 17 loans under SBA 7(a) and 15 under SBA 504. The state ranks 30 of 53 for car wash loans and Idaho's own class ranking puts washes at 16 of 39, and the location quotient reads 0.86x. Franchise brands account for only 3.1% of loans, so independents and regional operators dominate.

Lenders and counties

Capital Matrix, Inc. is the busiest 504 sponsor: 7 loans, $11.7 million. Ada County has 10 loans and Canyon County 6, which together account for most of the activity around the Boise valley; Bonneville has 4, Bonner, Kootenai and Twin Falls have 2 each, and Bannock, Gem, Jefferson and Nez Perce have 1 each. Annual volume peaked at 9 loans in FY2019, and FY2025 shows 0. A request outside the Treasure Valley therefore faces thinner precedent, and a study for such a site has to argue its own traffic case rather than borrow one.

Cancellations, charge-offs and the code limit

Among Idaho washes from the FY2017 to FY2024 cohort, 16.7% were cancelled at minimum, and counting loans still undisbursed as cancelled gives the same 16.7%, so the floor and the ceiling coincide. A project of this kind clearly can fall away between approval and closing, and a borrower should expect the process to test the plan hard. Idaho's charge-off rate stays blank, as the funded cohort is thin; we give it no number and do not call it zero. A coding limit applies: one industry code covers car washes, truck washes and mobile washes alike, so some of these loans may be for truck wash or mobile operations rather than a tunnel or self-serve site.

What an Idaho car wash study has to test

The first test is traffic: daily counts on the frontage road, visibility and turning movements at the site, and the number of existing washes within a realistic drive. Weather matters in Idaho, because winter reduces washing frequency and a monthly membership plan changes the seasonal curve, so the study should model both. Cost comes next. With a median near $1.3 million, land, site work and equipment need separate lines, and water, sewer and utility capacity at the parcel can move the budget. Coverage belongs at ramp-up volume, not mature volume. The appraisal values a special-purpose property, often on a cost approach, and the study should square its income forecast with that value before it reaches a lender.

SBA 7(a) and 504 car wash loans in Idaho

Loans approved, FY2017 to FY202632
Gross dollars approved$45.9 million
Median loan$1.3 million
Middle half of loans, from$373,250
Middle half of loans, to$2.1 million
SBA 7(a) loans17
SBA 504 loans15
Franchise share of loans3.1%
Rank among states for car wash loans30 of 53
Rank of car wash among classes in Idaho16 of 39
Location quotient (share of loans against the national share)0.86x
Median loan against the national median for the class1.46x

Cancellation and charge-off

Cancelled after approval, FY2017 to FY2024 approvals (a floor) 16.7%
The same, counting loans still undisbursed as cancelled (a ceiling)16.7%
Charged off to date, FY2017 to FY2021 disbursed loans (a floor) not reported: fewer than 30 loans in the cohort

Both rates are floors. SBA withholds the status of open loans, so a loan counts as charged off only once SBA reports it; a rate needs at least 30 loans in its cohort and is otherwise not reported.

SBA 7(a) and 504 car wash loans approved in Idaho, by fiscal year

0246810FY2017FY2018FY2019FY2020FY2021FY2022FY2023FY2024FY2025FY2026Loans, FY2017: 3Loans, FY2018: 3Loans, FY2019: 9Loans, FY2020: 3Loans, FY2021: 3Loans, FY2022: 4Loans, FY2023: 3Loans, FY2024: 2Loans, FY2025: 0Loans, FY2026: 2
Fiscal yearLoansDollars
FY20173$4.1 million
FY20183$1.6 million
FY20199$13.6 million
FY20203$4.1 million
FY20213$3.1 million
FY20224$6.4 million
FY20233$7.5 million
FY20242$5.0 million
FY20250$0
FY20262$444,800

Most active SBA lenders

SBA 504: lenders by loans approved (the current holder of each loan, as SBA reports it)
LenderLoansDollars
Capital Matrix, Inc.7$11.7 million

Where the loans are, by county

CountyLoans
ADA10
CANYON6
BONNEVILLE4
BONNER2
KOOTENAI2
TWIN FALLS2
BANNOCK1
GEM1
JEFFERSON1
NEZ PERCE1

Car and truck washes, including mobile washes, share one code. Shared code: Truck washes share 811192.

Source: U.S. Small Business Administration, 7(a) and 504 loan-level FOIA files (data.sba.gov), as of 2026-09-30; Loan Analytics loan-outcome cell SA-ID-C02.

Loan Analytics prepares the feasibility study a lender reads before it commits: for a car wash project in Idaho, financed under SBA 7(a), SBA 504, USDA Business and Industry or a conventional bank loan. Tell us the project and the lender's deadline, and we reply with scope, timeline and fee.

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