Auto Repair Job Costing: Know What You Made on Every Job
Labor hours times tech rate. Parts cost versus invoice price. Shop supplies. Mechanics calculates job profit automatically. See what you actually made on every single job — not just revenue, but real profit.
PROFIT vs REVENUE
What Job Costing Means in Auto Repair
You invoice a customer $1,200 for brake work. Great! But what did it cost you? Your tech spent 4 hours at $40/hour. You bought $200 in brake parts. Rotors, pads, fluids, tools. Real profit: $280. Not $1,200.
Most shops know their monthly revenue but not their actual profit per job. They have no idea which repairs are cash cows and which barely break even. They guess on pricing instead of calculating real numbers. Job costing changes that.
When you know what each job actually costs and what you made, you can identify margin leaks. You can price the next one correctly. You can stop doing work that doesn't pay.
THE FORMULA
How Mechanics Calculates Job Cost & Profit
Labor Cost
Actual hours logged × hourly labor rate = true labor cost. Mechanics tracks time automatically from work order start to finish.
Example:
Example:
Parts Cost
Sum of what you paid for every part used. Not what you charged the customer, but what it cost you to buy.
Shop Supplies
Rags, oil, solvents, gaskets, fasteners — small stuff that adds up. Assign a percentage or fixed amount per job.
Example:
Percentage of labor + parts cost. You set the rate in settings.
Full job breakdown:
Total Cost & Profit
All costs summed. Invoice amount minus total cost = actual job profit. Mechanics shows you the percentage margin too.
DATA-DRIVEN DECISIONS
Job Profitability Report
See all your jobs ranked by profitability. Which repairs made the most money? Which barely broke even? Which ones lost money? This is where real business intelligence comes from.
Use the report to identify your best-performing services and focus on those. Price similar jobs higher next time. Stop or improve unprofitable work.
Profitability Insights
Most profitable:
Transmission rebuilds - $1,100+ per job
High volume, good margin:
Oil changes - $35-50 profit, 15 jobs/month
Low margin:
Tire balance - $18 profit, 2 hours labor
Unprofitable:
Warranty work on past jobs - -$45 loss
Report filters
- By date range
- By technician
- By job type
- By profit range
- By margin percentage
REAL SCENARIOS
Identifying Margin Leaks
Over-investing in Parts
You discover brake jobs are losing 15% of revenue. You thought they were gold. You find OEM parts cost $200 but customers only pay $250 labor+markup. Solution: switch to quality aftermarket or adjust pricing.
Underpricing Labor
You find that timing belt jobs take 4 hours on average, but you only estimate 3. You're losing $350+ per job. Next time, estimate correctly.
Tech Inefficiency
One tech's oil changes take 45 minutes. Another does them in 20 minutes. You see the wage-per-job difference. Training opportunity identified.
Free Work
You discover warranty work is losing money. Customers get 60-day free brake work. You need to limit or stop this practice.
BETTER PRICING
Price Correctly Next Time
When you know what a brake job actually costs you (labor + parts + supplies), you can price the next one right. Not "what my competitor charges" or "what sounds reasonable." Real numbers.
Similar jobs cost similar amounts. Once you know the margin on one, apply it to the next. Consistency in pricing. Consistency in profit.
Pricing strategy
Cost: $377
Last brake job
Markup target: +200%
Based on your market
Next estimate: $1,131
$377 cost × 3 = 200% gross margin
You set the target markup. Mechanics helps you hit it consistently.
Why this matters
- Stop guessing. Use real data.
- Every technician prices similarly
- Never undersell again
- Predictable profit margin
BUILT FOR
Shops That Want To Maximize Profit
If you're running your shop on gut feeling instead of numbers, this is for you. If you invoice customers and hope you made money, this is for you. If you want to stop losing money on unprofitable jobs, this is for you.
You're a fit if:
- You don't know which jobs are profitable
- You guess on pricing instead of calculating
- You want to stop losing money on certain repairs
- You want techs to price jobs consistently
- You want to see real profit, not just revenue
- You're ready to run your shop like a business
WHAT CHANGES
What Happens When You Know Your Real Profit
Higher Overall Profit
Stop doing unprofitable work. Focus on high-margin services. Your bottom line improves.
Better Pricing
Estimate based on real cost + target margin, not wild guesses. More consistent, more profitable.
Better Decisions
Should you hire another tech? Invest in equipment? Real profit data makes the decision clear.
Consistency
Every job tracked the same way. Every tech prices similarly. Your business stabilizes.
REAL NUMBERS vs GUESSING
Data-Driven Decisions vs Guesses
| Scenario | Guessing | Mechanics |
|---|---|---|
| How much did brake job profit? | Maybe $400? Hope so. | Exactly $823 with 68.6% margin |
| Should I keep doing timing belts? | Sounds profitable. Maybe. | Yes—$800+ profit per job. Top 15% earner. |
| Why is one tech slower than others? | Not sure. Maybe older? | Oil changes take 45 min vs 20 min. Training gap identified. |
| How much should I charge for this brake job? | My competitor charges $800. I'll match. | Cost $377. Target 200% margin = $1,131. Fair for both. |
| Which service makes most money? | Feels like transmissions? | Transmission rebuilds: $1,100+. Confirmed. |
| Is warranty work hurting me? | Probably not. | Yes—losing $45 per warranty job. Stop or limit. |
| Overall monthly profit? | Made maybe $8k? | Exactly $8,347. 34% margin on $24,500 revenue. |
PRICING
Start Free, Scale as You Grow
Free
Forever free for 1 user
$0
Per month
- Unlimited work orders
- Basic job costing
- Profit calculation per job
- 1 user account
Pro
Most popular for shops 3-10 bays
$49
Per month per user
- Everything in Free
- Up to 5 user accounts
- Profitability reports
- Margin analysis by job type
- Tech performance insights
Enterprise
For large multi-bay operations
$149
Per month per user
- Everything in Pro
- Unlimited users
- Advanced analytics
- Custom reporting
- Priority support
All plans include a free 30-day trial. No credit card required.
Stop Guessing Your Profit Start Knowing It
Every job has a cost and a profit. Mechanics calculates both automatically. Know which repairs make real money. Price the next one correctly. Run your shop like a business.
See Your Job Profit FreeFree for 30 days. All features included. No credit card required.