| CEO, CTO, logistics, sales, marketing, engineering, and support payroll |
Fixed |
Treat planned full-time equivalent payroll as monthly overhead unless a role is paid per trip or per shipment. |
Loading salaried team expense into each route and overstating route-level break-even. |
| Recurring office overhead |
Fixed |
Use the monthly base: rent $4,000, legal and accounting $2,000, software $1,500, utilities $600, insurance $400, supplies $300, and CRM tools $800. |
Forgetting that these bills stay due even when order volume drops. |
| Seller and buyer marketing budgets |
Semi-fixed |
Classify the first-year total of $250,000 as stepped spend when campaigns are committed by month. |
Treating all marketing as perfectly variable and cutting break-even too far. |
| Payment processing fees |
Variable |
Apply 3.5% of revenue in the first year, declining to 3.0% in the mature year. |
Using a flat dollar amount instead of tying fees to processed order value. |
| Cloud hosting and infrastructure |
Variable |
Model at 4.0% of revenue in the first year, declining to 3.5% in the mature year. |
Parking hosting in fixed overhead even though usage rises with transactions. |
| Application programming interface licensing fees |
Variable |
Use 3.0% of revenue in the first year, declining to 2.5% in the mature year. |
Ignoring per-call or transaction-linked platform usage in route margin. |
| Transaction-based customer support |
Variable |
Model at 2.5% of revenue in the first year, declining to 2.0% in the mature year. |
Counting support only as payroll and missing order-linked service workload. |
| Driver wages, fuel, tolls, customs coordination, maintenance, and border wait time |
Semi-variable |
Add these as route inputs when the model tracks owned or managed trips; include both base dispatch needs and mileage, delay, or crossing-linked usage. |
Burying fleet, delay, or border charges inside fixed overhead. |