Cost-Based Pricing: Know Your True Costs First
You can't price for profit if you don't know what profit looks like.
Cost-based pricing starts with knowing exactly what each job costs you. Supplies, labor, vehicle wear, overhead. Once you know your true cost, you have a floor. Price above it. What you owe in tax is a separate question, and a CPA can tell you what to set aside.
Detaild Academy provides general educational information, not professional tax, legal, or financial advice. Tax rules vary by state and change frequently. Consult a qualified CPA about your situation.
The $200 Detail That Lost Money
A detailer charges $200 for a full interior/exterior detail. He thinks he's making good money. Let's do the math:
- Time on job: 3.5 hours
- Drive time: 45 minutes round trip
- Supplies used: ~$18
- Gas for the drive: ~$8
- Vehicle wear (mileage): ~$12
- Insurance (prorated): ~$6
- Software/subscriptions (prorated): ~$4
Total costs: $48
Pre-tax profit: $152
Hours invested: 4.25 hours
Effective hourly rate before tax: $35.76/hour
He thought $200 was the number. It's closer to $36 an hour for the whole block of time, and that's before he pays any tax on it. What you owe in tax is a separate question, and a CPA can tell you what to set aside.
This is why cost-based pricing matters. You can't set profitable prices until you know what "profitable" actually means.
The Four Categories of Costs
1. Direct Costs (Per Job)
These costs happen every time you do a job:
- Supplies: Chemicals, towels, applicators, clay, polish, etc.
- Fuel: Gas to get to and from the job
- Mileage wear: Vehicle wear, tires, maintenance per mile
2. Labor Cost (Your Time)
Your time has value even if you don't pay yourself a "wage."
- Working time: Hours actively detailing
- Drive time: Getting to and from jobs
- Admin time: Quoting, scheduling, invoicing, follow-up
If you want to earn $75,000/year working 40 hours/week, that's roughly $36/hour. Every hour you spend on a job needs to earn at least that.
3. Overhead (Fixed Monthly Costs)
These costs exist whether you work or not:
- Insurance: Liability, vehicle, health
- Software: CRM, booking, accounting
- Marketing: Website, ads, subscriptions
- Equipment wear: Polisher, extractor, pressure washer
- Phone/internet: Business communication
- Storage: If you rent space for supplies/equipment
4. Taxes
The cost most detailers forget. Tax comes out of profit, and it is real money leaving the business.
What you owe depends on your situation, and the rules change. Current federal guidance is on IRS.gov, and a CPA can tell you what to expect for your business.
For pricing, the point is simpler. Your price has to clear your costs with something left over. What you owe in tax is a separate question for your CPA.
Calculating Your True Job Cost
Step 1: Calculate Your Hourly Overhead
Add up your monthly overhead costs:
Insurance: $200/month
Software: $100/month
Marketing: $150/month
Equipment wear: $100/month
Phone: $50/month
Total monthly overhead: $600
Divide by monthly working hours (say, 160 hours):
Hourly overhead: $600 ÷ 160 = $3.75/hour
Step 2: Calculate Direct Costs Per Job
For a typical full detail:
Supplies (chemicals, towels, etc.): $15
Fuel (20 mile round trip): $6
Mileage wear ($0.30/mile × 20): $6
Direct costs: $27
Step 3: Calculate Labor Cost
Decide your target hourly rate. For $75K/year at 40 hrs/week: ~$36/hour
Detail time: 3.5 hours × $36 = $126
Drive time: 0.75 hours × $36 = $27
Admin time: 0.25 hours × $36 = $9
Labor cost: $162
Step 4: Add Overhead Allocation
Total job hours: 4.5
Hourly overhead: $3.75
Overhead allocation: 4.5 × $3.75 = $17
Step 5: Add It Up
Direct costs: $27
Labor: $162
Overhead: $17
Total cost: $206
Step 6: Treat It as a Floor
The $206 above is what the job costs you. It is a floor, not a price.
Write it down and use it on every quote. Below it you're losing money somewhere. At or above it you're covering costs and paying yourself $36/hour.
Note that your own $36/hour is inside that floor. Covering the floor pays you, it does not leave you a margin. What you owe in tax is a separate question, and a CPA can tell you what to set aside.
The Simplified Formula
Minimum Price = Direct Costs + Labor + Overhead
That is your floor. Price above it. What you owe in tax is a separate question, and a CPA can tell you what to set aside.
Supply Cost Tracking
Most detailers wildly underestimate supply costs. Track them properly:
Method 1: Per-Job Tracking
For a week, write down everything you use on each job. Measure chemical usage, count towels, track applicators. Average it out.
Method 2: Monthly Division
Track total monthly supply purchases. Divide by number of jobs.
Monthly supply spend: $450
Jobs completed: 25
Average supply cost: $18/job
Typical Supply Costs
- Basic wash/wax: $5-10
- Full interior/exterior detail: $15-25
- Paint correction (per stage): $10-20 in pads/polish
- Ceramic coating application: $50-200+ (product dependent)
Vehicle Costs for Mobile Detailers
Your vehicle is a business tool. It costs money to operate.
There are two separate questions here. Keep them apart.
For Your Pricing
This is the number that belongs in this lesson. What does a mile actually cost you to drive? Gas, tires, brakes, wear, the maintenance you know is coming.
For pricing purposes, use $0.45-0.65 per mile as your vehicle cost. A 30-mile round trip costs about $14-20.
This is a business cost input, and it is a separate question from anything on your return.
For Your Tax Return
How vehicle expense gets treated on a return is its own topic, the rules change, and the answer depends on your situation. Start at IRS.gov and take the question to your CPA.
What About Equipment?
Big purchases (polisher, extractor, pressure washer) should be spread over their useful life for your own cost math:
Rupes polisher: $600
Expected lifespan: 5 years
Monthly cost: $600 ÷ 60 = $10/month
Extractor: $400
Expected lifespan: 4 years
Monthly cost: $400 ÷ 48 = $8.33/month
Add that monthly cost to your overhead.
The Cost Floor
Once you've calculated your true costs, you have a cost floor. The absolute minimum you can charge without losing money.
Your actual prices should be above this floor. How far above depends on:
- Market rates (Lesson 2.3)
- Value you provide (Lesson 2.4)
- Your desired profit margin
But you should never, ever price below your cost floor. That's not discounting. That's donating.
What This Job Actually Costs You
Drive time is estimated at 30 mph and admin at 15 minutes a job. Price above the floor. What you owe in tax is a separate question, and your CPA can tell you what share to hold back.
Common Mistakes
→ Drive time is work time. A 45-minute drive each way is 1.5 hours of labor. Include it in your cost calculation or you're working for free.
→ Tax comes out of profit and the bill arrives whether you planned for it or not. Ask a CPA what to expect for your situation, well before you need the answer.
→ Track actual supply usage for a month. Most detailers are shocked to discover they use $15-25 per full detail, not the $5-10 they assumed.
→ Insurance, software, marketing. These costs exist even when you're not working. Allocate a portion to every job or they eat your profit.
→ Calculate your actual costs once. Create a simple formula. Use it for every quote. Gut feel is how detailers end up working for $15/hour.
This week, calculate your true cost for your most common service. Add up direct costs, labor (at your target hourly rate), and overhead allocation. Compare to what you're currently charging. Are you actually profitable?
Detaild tracks your revenue per job automatically. Combine this with your cost calculations to see true profit per job, not just revenue.
Create a simple cost sheet for your top 5 services. Know your cost floor for each. When quoting, you'll have confidence knowing exactly where your minimum is, and how much margin you're making above it.
Frequently Asked Questions
What hourly rate should I use for labor?
Work backwards from your income goal. Want $80K/year working 40 hrs/week for 50 weeks? That's $40/hour. This is your labor cost. The minimum your time is worth.
Should I charge for admin time?
Yes. Quoting, scheduling, invoicing, and follow-up take time. Estimate 15-30 minutes of admin per job and include it in your labor calculation.
How do I track supply costs if I buy in bulk?
Estimate per-job usage. If a gallon of APC costs $30 and lasts 20 jobs, that's $1.50/job. Do this for each major product and add them up.
What if my costs are higher than competitors' prices?
Then either your costs are too high (find efficiencies) or competitors are underpricing (and probably struggling). Don't race to the bottom. Price for profit.
How often should I recalculate costs?
Review quarterly or when major costs change (gas prices, new equipment, insurance renewal). Your cost floor shifts over time.
Track Revenue Per Job
Detaild automatically tracks what you earn on every job. Combine with cost data to see real profitability.
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