Car wash financing with an SBA loan
Car Washes · NAICS 811192 · Program that usually fits: 7(a) or 504
Car wash financing through the SBA usually means a 504 loan, because a tunnel wash is a real-estate-heavy project with expensive fixed equipment. The SBA counts the wash equipment as long-life fixed assets, so it can go in the 504 at the same fixed rate as the building. Express and self-serve washes, which cost less, more often use a 7(a).
Who qualifies
Developers building a new express tunnel, and operators buying an existing wash, are the typical borrowers. Lenders want a site study with traffic counts, a signed equipment contract and, for a purchase, three years of car counts and revenue. Experience in the industry or a management agreement with an experienced operator helps.
Which SBA program fits
504 for a new tunnel wash
Funds the land, building and tunnel equipment at a fixed rate, with the bank taking a first lien on 50% and the SBA-backed CDC taking 40%. You put in 10%, or 15% for a start-up.
7(a) for a purchase or a smaller wash
A 7(a) loan up to $5 million covers the purchase of an operating wash, including goodwill, on a 25-year term when real estate dominates.
7(a) for equipment refresh
Replacing tunnel equipment or adding a membership system can be financed on a 10-year 7(a) loan.
What borrowers use the money for
- Land and construction of a new express tunnel
- Tunnel equipment, vacuums and pay stations
- Buying an existing car wash
- Converting a full-service wash to express
- Working capital through the ramp-up year
Typical loan amounts, down payment and terms
New express tunnels typically cost $3 million to $7 million, which is why many use a 504 paired with a bank loan. Existing wash purchases range from $750,000 to $4 million. Equity is 10% to 15% on a 504 and 10% to 20% on a 7(a). Lenders will cap the loan at what projected car counts support.
Example: a $2,000,000 loan
At today's maximum variable 7(a) rate of 10.00% over 25 years, the payment would be about $18,174 a month. Most well-qualified borrowers get a lower rate. On a 504 project, the SBA-backed 40% would be fixed at 6.57% (November 2026, 25-year). Try your own numbers.
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Today's rate caps
These are the SBA's maximum 7(a) rates with prime at 7.00%. See current SBA 7(a) rates and SBA 504 rates for the full picture.
| Loan amount | Maximum spread | Maximum variable rate today |
|---|---|---|
| $50,000 or less | Prime + 6.5 | 13.50% |
| $50,001 to $250,000 | Prime + 6.0 | 13.00% |
| $250,001 to $350,000 | Prime + 4.5 | 11.50% |
| Over $350,000 | Prime + 3.0 | 10.00% |
Related industries and lenders
Related industries
SBA lenders active nationwide
Questions about car wash financings
Can I get an SBA loan to build a car wash?
Yes. A 504 loan is the usual tool for a new build because the land, building and tunnel equipment all qualify as fixed assets. Start-ups need 15% equity instead of 10%, and lenders will want a feasibility study from a car wash consultant.
What down payment does car wash financing need?
10% for a 504 project on an existing wash, 15% for a new build, and 10% to 20% for a 7(a) purchase. Land you already own can count as equity at its appraised value.
What is the term on a car wash SBA loan?
Real estate and tunnel equipment go 25 years on a 504 or on a 7(a) where real estate is the majority of the project. Equipment-only loans run 10 years.
What rate will a car wash SBA loan carry?
The 504 SBA portion priced in November 2026 at 6.57% fixed for 25 years. A 7(a) loan over $350,000 is capped at prime plus 3, or 10.00% today, and the bank sets its own rate below that.
Does the SBA finance unattended self-serve washes?
Yes, as long as you actively manage the business. The SBA excludes passive real estate, but a self-serve wash with an owner handling maintenance, collections and marketing counts as an operating business.
Sources: SBA 7(a) terms, conditions and maximum variable rates; Federal Reserve H.15 selected interest rates (bank prime loan rate); November 2026 SBA 504 debenture pricing, as published by CDCs; SBA FOIA 7(a) and 504 loan-level data.