How to Calculate a Car Wash Break-Even Point in 30 Minutes
If you do not know your break-even point, pricing decisions become guesswork. The good news is you do not need an accountant or a complex spreadsheet: in 30 minutes you can calculate how many sales you need to stop losing money and start planning real growth.
The core formula
Break-even point (services/month)
Monthly fixed costs / (Average price per service - Variable cost per service)
Step 1: Define your fixed costs
These are costs you pay even if you wash zero cars. Keep them monthly and realistic.
Step 2: Calculate variable cost per service
These costs change based on how many services you perform. Calculate them per car.
Step 3: Compute your real average price
Do not use list price only. Use monthly revenue divided by services sold. That includes discounts, bundles, and promotions.
2-minute example
Monthly fixed costs: $80,000 MXN
Average price per service: $220 MXN
Variable cost per service: $95 MXN
Break-even point = 80,000 / (220 - 95) = 640 services per month
30-minute checklist
Gather your fixed costs from the last month (10 min).
Calculate average variable cost per service (8 min).
Calculate your real average price from monthly sales (5 min).
Apply the formula and define a weekly target (7 min).
Common mistakes
- ā¢Ignoring hidden costs like commissions or waste.
- ā¢Using list price instead of real average price.
- ā¢Not recalculating monthly when costs change.
- ā¢Confusing break-even with profit target.
How to use this number to grow
Once you know your break-even point, you can set weekly goals, adjust pricing, push higher-margin services, and evaluate promotions without damaging profitability.
Clear operating target
Turn 640 services/month into a daily target your team can execute.
Data-driven decisions
Adjust pricing, packages, and memberships based on real margin.
Want to track this without manual spreadsheets?
With Brilloo, you can track revenue, average ticket, and services sold to monitor break-even week by week.