Investor primer

How much revenue does a car wash make per year?

A well-trafficked express tunnel typically generates $1.5–4M in annual revenue at stabilization. In-bay automatic operations run $150K–$500K; full service $1–3M; detail shops $400K–$1M; self-serve $80K–$200K per 4-bay site.

Written by Justin Kuo (Founder, Sparkle Technologies)

Direct answer

A well-trafficked express tunnel typically generates $1.5–4M in annual revenue at stabilization. In-bay automatic operations run $150K–$500K; full service $1–3M; detail shops $400K–$1M; self-serve $80K–$200K per 4-bay site.

Revenue ranges by format at stabilization

  • Express tunnel — $1.5–4M annual revenue. Top-decile sites clear $5M. Membership revenue typically represents 50–70% of total revenue at stabilization, with the balance from retail single-wash transactions.
  • Full service — $1–3M annual revenue. Higher ticket ($25–45 per wash) but lower throughput than express. Detail add-ons can extend annual revenue per customer materially.
  • In-bay automatic — $150–500K annual revenue. Operates with minimal labor and can be combined with convenience-store retail.
  • Self-serve bay — $80–200K annual revenue for a 4-bay site. Lowest absolute revenue but also lowest operating cost.
  • Detail shop — $400K–$1M annual revenue. Premium ticket, labor-intensive, strong customer ratings.

What separates top-decile from median revenue

At express tunnels specifically, the gap between median ($2M) and top-decile ($4.5M+) is explained by three things:

  1. Membership penetration — top operators reach 45–55% of customer base on unlimited plans. Median sits around 30%.
  2. Average ticket — top operators clear $15 average ticket on single washes via aggressive package mix and upsells. Median sits around $12.
  3. Cars-per-day at peak — site selection drives the day-1 volume; operational quality drives the post-ramp expansion.

WashIndex tracks the operational signals that correlate with the top-decile revenue distribution — chain-level and per-location.

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Data as of 2026-06-02. Pick a format and click Copy.

APA
WashIndex. (2026, June 2). How much revenue does a car wash make per year?. https://washindex.com/q/how-much-revenue-does-a-car-wash-make-per-year
Chicago
WashIndex. "How much revenue does a car wash make per year?." WashIndex. Last modified June 2, 2026. https://washindex.com/q/how-much-revenue-does-a-car-wash-make-per-year.
MLA
"How much revenue does a car wash make per year?." WashIndex, Jun. 2, 2026, https://washindex.com/q/how-much-revenue-does-a-car-wash-make-per-year.
BibTeX
@misc{washindex_q_how_much_revenue_does_a_car_wash_make_per_year_2026,
  title  = {{How much revenue does a car wash make per year?}},
  author = {{WashIndex}},
  year   = {2026},
  month  = {Jun},
  url    = {https://washindex.com/q/how-much-revenue-does-a-car-wash-make-per-year},
  urldate = {2026-06-02},
}

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