| Office Rent |
Fixed |
Include $5,000 per month in fixed overhead from Month 1 through Month 60. |
Treating rent as if it rises with each booking. |
| Legal & Accounting Fees |
Fixed |
Include $2,500 per month in fixed overhead for the full planning period. |
Scaling professional fees with revenue without a contract driver. |
| Cloud Hosting |
Fixed |
Include base infrastructure at $1,500 per month before calculating order break-even. |
Putting base hosting into variable fees and overstating contribution drag. |
| Salaried Team Payroll |
Semi-fixed |
Use about $57.1k per month in first-year payroll, then step it up as FTE headcount grows. |
Modeling all payroll as variable when these roles are hired in blocks. |
| Buyer and Seller Marketing Budget |
Semi-fixed |
Use the first-year budget of $350k, or about $29.2k per month, as planned spend. |
Using CAC only and missing the committed campaign budget. |
| Payment Processing Fees |
Variable |
Apply 2.5% of revenue in the first year, declining to 2.0% by Year 5. |
Entering 25% instead of 2.5%, which crushes margin by mistake. |
| Platform Software Licenses |
Variable |
Apply 1.5% of revenue in the first year, declining to 1.0% by Year 5. |
Treating a revenue-based license fee as a flat subscription. |
| Driver Acquisition & Vetting |
Variable |
Apply 4.0% of revenue in the first year, declining to 3.0% by Year 5. |
Hiding driver onboarding under fixed overhead and overstating contribution margin. |