Auto repair shop CFO services: your bays are inventory — sell the hours

The product is billed hours — measure them like inventory

A shop's capacity is fixed the moment the doors open: bays multiplied by operating hours multiplied by technicians. Every one of those hours is paid for whether or not it is billed, which is why a shop can feel slammed and still miss payroll — busy is not the same as billed. Our fractional CFO work starts by measuring the two ratios that describe the whole business: bay utilization (billed hours against available hours) and technician efficiency (hours flagged against hours clocked). Shop platforms like Tekmetric, Protractor, Shop-Ware, or Mitchell 1 already hold this data; almost nobody reads it weekly, and weekly is where the money is.

Once those ratios are visible, scheduling stops being a whiteboard art. Unfilled Tuesday bays get marketing dollars, chronic bottlenecks get a second look before anyone talks about hiring, and the case for extended hours is made with arithmetic instead of optimism.

Effective labour rate: the honest number

Your door rate is what the sign says; your effective labour rate — labour revenue divided by billed hours — is what you actually collect, and the gap between them is usually the single largest hidden leak in the shop. The gap has a short list of causes, and each has a fix:

• Unbilled diagnostic time — inspections and diag given away to win the job, fixed with a real diagnostic charge that is credited toward approved work.
• Discounting at the counter — goodwill that never gets recorded as a decision, fixed with a discount line the owner reviews weekly.
• Comebacks and warranty time — rework billed to nobody, fixed by tracking it per technician and treating it as a quality cost, not background noise.
• Stale menu pricing — packages priced years ago that no longer cover today's labour cost, fixed on a scheduled reprice cycle.

We compute the effective rate weekly, per bay and per service writer, and close the gap one cause at a time. A few recovered dollars per billed hour compounds across every hour the shop will ever bill — no new customers required.

Parts matrix pricing that survives cost inflation

Flat parts markup leaves money on small parts and loses jobs on big ones; a matrix scales the markup to the cost of the part, which is how parts margin holds without pricing yourself out of major repairs. The structure matters more than any single multiplier, and it has to be revisited as supplier costs move:

Cost inflation is the reason the matrix cannot be set once and forgotten. Much of the aftermarket parts supply crosses the border, and with the US de minimis exemption gone, tariffs and brokerage now reach even small orders — so we review landed parts cost quarterly and reprice the matrix before margin erodes, not after. Shops doing warranty work reimbursed by US OEMs have a second cross-border layer; both live on our cross-border tax page for repair shops.

Expand in place or open a second shop

Sell all the capacity you already rent before you rent more. In almost every shop we see, there is a cheaper move available than a second location: fill the slow weekdays, add a Saturday shift, hire the technician the utilization data already justifies, or buy the alignment or ADAS-calibration equipment that raises revenue per bay without adding a bay. A second location doubles rent, doubles the equipment lien, and — the part nobody budgets — splits the owner or the one great service advisor the first shop actually runs on.

The second location earns a yes when three tests pass: the first shop holds its numbers for a sustained stretch without you in the building, a named manager is ready rather than hoped for, and the cash forecast carries fit-out plus a slow ramp without leaning on the first shop's payroll. We build that forecast on real numbers from your own books — which is also why the monthly close from our auto repair bookkeeping service comes first, and the expansion model second.