| Vehicle Insurance |
Fixed |
Include in monthly overhead at $250/month. |
Don’t tie it to each repair. |
| Software Subscriptions |
Fixed |
Include in monthly overhead at $150/month. |
Don’t bury it in general admin. |
| Digital Marketing Base |
Fixed |
Include in monthly overhead at $400/month. |
Don’t assume ads stop when bookings slow. |
| Lead Mechanic / Owner |
Fixed |
Include $70,000 annual pay as recurring labor. |
Don’t call profit owner income. |
| Cost of Parts Sold |
Variable |
Apply 8.0% of first-year revenue. |
Don’t use sales price as margin. |
| Service Consumables |
Variable |
Apply 2.0% of first-year revenue for small supplies. |
Don’t ignore lube, cables, and shop supplies. |
| Vehicle Fuel & Maintenance |
Semi-variable |
Apply 4.0% of first-year revenue for route usage. |
Don’t understate long drive times. |
| Payment Processing Fees |
Variable |
Apply 2.5% of revenue to card-paid sales. |
Don’t forget card fees. |