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How to Price Mobile Mechanic Jobs: A Cost-Based Labor Rate Formula

Updated 2026-10-17. Sources are listed at the end.

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This is general information, not legal or tax advice. Rules vary by state and change often. Confirm with the official source linked in each section, or with a licensed attorney, CPA or insurance agent, before you act.

Most new mobile mechanics price by guessing what the shop down the road charges. That ignores your own costs, and it ignores the fact that you can’t bill for the hours you spend driving, quoting, buying parts and doing paperwork. Here’s a cost-based way to set a rate you can defend, followed by a market check.

The formula

Hourly labor rate = (what you want to pay yourself + annual overhead + profit) ÷ billable hours per year

Then, per job:

Job price = (book hours × labor rate) + parts (with your markup) + trip/diagnostic fee if you charge one

Step 1: What you want to pay yourself

Use a real benchmark. The U.S. Bureau of Labor Statistics reports the median pay for automotive service technicians and mechanics was $50,620 a year ($24.34/hour) in May 2025. The lowest 10% earned under $34,660 and the top 10% over $81,790 (BLS Occupational Outlook Handbook). Those are employee wages. As a business owner you also cover self-employment tax and buy your own benefits, so set your target above what you’d earn as an employee.

Step 2: Annual overhead (list every line)

CostWhere to get a real number
Insurance (general/garage liability, garagekeepers, commercial auto, tools)Your quotes. For benchmarks see auto repair insurance costs
Service vehicleActual costs, or a per-mile benchmark: the IRS business standard mileage rate is 76¢/mile for July-Dec 2026 (72.5¢ Jan-Jun) (IRS)
Software (scheduling/invoicing or shop management)Vendor pricing pages. See shop software pricing
Scan tool subscription, labor guide, repair infoYour renewals. Compare scan tools at ScanToolMatch
Tool payments and replacementYour statements
Phone, marketing, licensing/registration fees, accountingYour bills

The IRS rate is a deduction rate, not your exact cost (see mileage deductions). It’s still a reasonable stand-in for fuel, maintenance, depreciation and insurance on a vehicle until you have a year of your own numbers.

Step 3: Billable hours (the number people overestimate)

Start with the hours you’ll actually work in a year. Subtract driving between jobs, parts runs, estimates that don’t convert, comebacks, weather days and admin. What’s left is billable hours. Track one month honestly with a simple log. Many solo operators find their billable share is well under the total hours worked. Use your own number, not a rule of thumb.

Step 4: Worked example (example inputs only, not data)

Example inputs only. Replace every number with your own.

Rate = ($60,000 + $23,400 + $8,340) ÷ 1,100 = $83.40/hour

If the same person could only bill 800 hours, the rate becomes about $114.68/hour. Billable hours drive the price more than almost anything else.

Run the numbers in our interactive labor rate calculator or the free labor quote calculator, then build the customer-facing estimate with the free estimate & invoice generator.

Step 5: Sanity-check against the market

If your cost-based rate comes out well below those, you probably left out a cost or overestimated billable hours. If it comes out far above, look for overhead to cut, or justify the price with convenience: you come to the customer. More detail in auto repair labor rates in 2026.

Trip and diagnostic fees

Many mobile operators charge a separate trip or diagnostic fee so unpaid drive time and diagnostics aren’t hidden in the labor rate (see how much to charge for diagnostics). For national per-job price ranges, see the brake job, battery/alternator/starter and oil change guides. Whatever you choose, put it in writing before you start. Some states require it. California requires a written estimate, and no work or charges before the customer authorizes it (BPC §9884.9). New York requires customer authorization, and the final bill can’t exceed the written estimate without consent (NY DMV). More in the license requirements guide.

Sales tax goes on top of your price, and whether labor is taxable depends on your state. See sales tax on auto repair.

To see what your rate means for take-home income, read how much do mobile mechanics make?

Sources