Know exactly what your detailing shop nets per job and per month — with parts markup margin separated from labor revenue so you can see which side of the business drives your profit.
A mobile detailer doing six cars a day at $150 feels like he's printing money — $900 in the bank by sundown. Then the ceramic coating, the foam cannon refill, the microfiber towels, the fuel to four driveways, and the cost of the kid he hired to wipe down interiors all take their cut, and the real take-home per car is a number he's never once stopped to calculate. This calculator stops to calculate it. You enter Jobs Per Week, Avg Labor Per Job, Avg Parts Per Job, and a Parts Markup percentage — the tool splits your labor revenue from your parts margin, then subtracts monthly rent, employee wages, and overhead to show net profit and per-job profit side by side.
Parts markup is where detailing shops either make or leave significant money. At a 50% markup on $30 in supplies per job, you're adding $15 in margin per vehicle. Across 65 jobs per month, that's nearly $975 in additional margin — on top of labor revenue. The tool shows this as a separate Parts Margin KPI so you can evaluate whether your markup rate is competitive and whether your supplier pricing needs renegotiation.
Detail shops live and die on the gap between a $40 express exterior and a $1,400 multi-stage paint correction with a five-year ceramic. Most owners price the express job from a chalkboard menu and price the ceramic job from a gut feel — never running the actual chemistry of labor hours, polish consumption, coating bottle yield, and pad attrition through a real per-job P&L. Run this calculator across your full service tier ladder — bronze wash, full interior shampoo, single-stage correction, ceramic coat, fleet route — and you will find at least one tier where the gross looks great and the per-job profit is silently underwater. See real margin on a ceramic-coat upsell against a full-interior shampoo on the same Saturday bay →
Labor revenue versus parts margin: why both matter
Labor revenue is the predictable core of a detailing operation: jobs times hours times rate, simplified here as jobs times average labor value. Parts margin is the compounding opportunity that many detailers underutilize. If your standard detail uses $30 in supplies — ceramic coating prep, interior cleaner, dressings, protective coatings — and you charge those materials at cost plus 50%, you're generating $15 per job without scheduling an extra appointment. At $45 in materials with a 40% markup, the parts margin is $18 per job.
The tricky part is that parts markup percentage varies widely by what you sell. Basic wash supplies marked up 50% is reasonable. Premium paint correction compounds and ceramic coatings can carry 60-80% markup with customers who understand they're buying professional-grade product at retail. Track your materials cost separately by service tier if you offer both basic and premium packages.
How employee wages reshape the profit picture
A solo detailer carrying no employee wages keeps the math simple: gross revenue minus materials minus overhead equals take-home. The moment you hire a detailer, wages become your largest variable cost. At $3,000/month in employee wages on a 15-job-per-week schedule, wages alone run $750 per week — meaning your employee needs to generate at least one and a half additional billable jobs per week just to cover their own cost before contributing to profit.
The default of $3,000/month in wages is roughly full-time at $17-$18/hour. If you're using part-time labor or a commission structure, adjust wages downward and capture the upside in additional jobs per week. The calculator shows Per Job Profit as a KPI — if this number drops below $20 after wages are included, your shop is working hard for thin margins and a pricing or volume conversation is overdue.
Job volume and the breakeven threshold you need to know
At $1,500 in monthly rent, $3,000 in wages, and $800 in overhead, your fixed monthly cost is $5,300 — before any materials. At an average labor charge of $150 per job with 50% parts markup on $30 in supplies, each completed job contributes roughly $160 in gross margin. Your breakeven is approximately 33 jobs per month — less than 9 jobs per week on a five-day schedule. Anything above that contributes net profit.
Knowing your breakeven job count is useful for scheduling decisions. If you're consistently clearing 55-65 jobs per month, you have runway to absorb a slow week or a staff change. If you're hovering at 35-40 jobs per month, you're running close to the line and a single equipment breakdown or slow week turns the month cash-flow negative. Run the tool at your actual numbers and see where your breakeven falls.
Pricing a service upgrade without guessing
Adding a ceramic coating package at $350 labor and $80 in materials changes your average job value significantly. If ceramic coatings represent 20% of your monthly volume, your blended average labor per job rises. You can model this directly: raise the Avg Labor Per Job input to reflect your new blended rate and adjust Avg Parts Per Job to reflect the higher materials content of the upgraded service. The net profit output tells you whether the mix shift is actually more profitable or just higher-revenue.
Revenue growth without margin growth is just complexity. A shop adding ceramic coating without raising the markup rate on materials and without accounting for the additional labor time per job may see higher gross revenue but flat net profit. The per-job profit output is the sanity check: if it stays flat or drops as your average job value rises, you've added cost in the upgrade that you haven't priced into the service.
Mobile detailing versus fixed location: how the numbers differ
Mobile detailing operators set Monthly Rent to zero and typically enter a lower overhead figure that covers vehicle costs, equipment maintenance, and water supply. Without rent, the breakeven job count drops significantly — but fuel and vehicle wear are real costs that need to be captured somewhere in the overhead line. A mobile operator averaging $400/month in fuel and vehicle maintenance at $800 total overhead still needs 20+ jobs per month to clear $1,000 in net profit.
Fixed-location shops have higher overhead but benefit from walk-in customers and the ability to run multiple vehicles simultaneously. If your shop can process 3 cars at once with two employees, your hourly revenue ceiling is triple what a mobile operator can produce. The trade-off is the fixed cost floor: your rent runs whether or not a car is on the lift. Run the numbers for both models before you sign anything — the comparison takes two minutes and the lease lasts years.
Auto Detailing Revenue Calculator vs. the alternatives
| Capability | Metric | Express exterior wash | Full interior shampoo | Ceramic coat (5-yr) | Fleet contract | Mobile route |
|---|---|---|---|---|---|---|
| Average ticket size | $25-$55 per car | $150-$275 per car | $1,200-$2,400 per car | $18-$32 per vehicle (volume) | $110-$220 per stop | |
| Labor hours per job | 0.25-0.5 hrs | 2.5-4 hrs | 8-14 hrs over 1-2 days | 0.4-0.8 hrs per unit | 1.5-3 hrs incl. setup/teardown | |
| Materials cost per job | $2-$5 (soap, tire shine) | $12-$22 (APC, shampoo, microfibers) | $45-$140 (coating, primer, panel-prep) | $3-$7 per unit | $10-$28 plus $8-$15 fuel | |
| Gross margin % | 55-68% | 62-74% | 70-82% | 38-48% | 60-72% | |
| Repeat-customer cadence | Every 2-4 weeks | Every 4-9 months | Annual maintenance wash, recoat year 5 | Weekly or biweekly | Every 4-8 weeks | |
| Cash-flow timing | Card-at-window, same day | Card on pickup, same day | 50% deposit, balance on cure day 2 | Net-30 to Net-60 invoice | Card or Zelle on completion |
How to use it
- Enter Jobs Per Week — your real average across all five operating days, not your best week.
- Set Avg Labor Per Job and Avg Parts Per Job from your actual service menu and materials cost.
- Adjust the Parts Markup (%) slider to your standard markup on supplies and detail chemicals.
- Fill in Monthly Rent, Employee Wages, and Monthly Overhead from your actual expense ledger.
- Read Gross Revenue, Parts Margin, Net Profit, and Per Job Profit — then adjust jobs per week to find your breakeven volume.
Who it's for
- Solo mobile detailer evaluating whether to open a fixed location — Compares current $0 rent mobile model at 12 jobs/week against a hypothetical $1,200 rent studio — finds the fixed location needs 5 more jobs per week to match current net profit.
- Shop owner evaluating a first hire — Adds $2,800 in wages to the model and sees they need 8 additional jobs per week for the hire to pay for itself — uses this to set a minimum booking threshold before committing to the hire.
- Detailer adding ceramic coating packages to the menu — Raises average labor per job from $150 to $190 to reflect blended mix with ceramic services, increases avg parts per job to $55, sees per-job profit increase by $22 — confirms the upgrade tier is worth offering.
- Multi-location operator comparing two shops — Runs the calculator separately for each location with their respective job volumes and rent figures, identifying that Location B's higher rent isn't justified by its current job volume.
Key terms
- Parts markup
- The percentage added to the cost of supplies and materials when billing the customer. On a $30 supply kit at 50% markup, the customer is charged $45 and the shop retains $15 as gross margin.
- Per-job profit
- Net profit divided by total jobs — the average contribution to profit from completing one vehicle service. The clearest indicator of whether your pricing covers your cost structure at the job level.
- Gross margin
- Revenue minus the direct cost of delivering the service, before overhead is subtracted. For detailing, this is labor revenue plus parts markup revenue minus the actual cost of parts.
Sources & further reading
- IDA International Detailing Association — certification, standards & business resources for auto detailing — The IDA publishes the Certified Detailer (CD) and Skills Validated (SV) credentials, plus pricing surveys and the Operator Code of Ethics that most professional auto detailing shops cite when justifying ticket prices against discount drive-throughs.
- Professional Carwashing & Detailing — trade publication for wash and detail operators — PC&D's annual State of the Industry report tracks wash counts, ceramic-coating attachment rates, and labor cost trends specific to auto detailing and conveyor operators, including the express-exterior versus full-service profitability comparison most owners need.
- BLS OES 53-7061 — Cleaners of Vehicles and Equipment occupational wage data — The Bureau of Labor Statistics publishes mean and percentile hourly wages for vehicle cleaners (the SOC code that covers auto detailing technicians), letting shop owners benchmark a detailer's pay against state and metro medians before posting a job.
- IRS — Business Use of Car (Publication 463 deductions) — Mobile auto detailing operators rely on this page to choose between the standard mileage rate and actual-expense method for their service van, and to document the water-tank, generator, and pressure-washer transport miles correctly at tax time.
- Auto Detailing News — industry news, product reviews & business operations coverage — ADN covers product launches in ceramic coatings, paint protection film, and polish compounds, plus operator profiles that show real ticket averages and bay-utilization numbers from working auto detailing shops across the U.S.
Andy Gaber is the founder of Digital Empire LLC and the operator of Digital Dashboard Hub. He has shipped 260+ free interactive tools — including this Auto Detailing Revenue Calculator — used by founders, marketers, freelancers, and operators to run their businesses without spreadsheets.
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