| Office Rent & Utilities |
Fixed |
Use $5,500 per month in fixed overhead from Month 1 through Month 60. |
Adding the $400,000 equipment and setup spend to monthly overhead instead of separating cash runway, debt service, or depreciation. |
| Professional Liability Insurance |
Fixed |
Use $1,200 per month as a stable operating requirement for the planning range. |
Scaling insurance directly with revenue when the model only gives a flat monthly amount. |
| Vehicle Fleet Lease & Insurance |
Fixed |
Use $2,800 per month as fixed overhead unless extra job mileage is tracked separately. |
Treating the full lease as variable travel and understating the monthly break-even hurdle. |
| Project Specific Travel & Logistics |
Variable |
Apply 5% of first-year revenue, then the model’s lower percentages in later years. |
Budgeting travel as a flat monthly number even though it moves with project volume. |
| Data Processing & Cloud Storage |
Variable |
Apply 8% of first-year revenue because processing and storage rise with delivered scan work. |
Putting cloud usage in fixed overhead and overstating contribution margin on each job. |
| Equipment Maintenance & Calibration |
Semi-variable |
Use 4% of first-year revenue, but review it as field usage increases scanner wear. |
Treating all calibration work as fixed even when heavier job volume drives more service needs. |
| Software Licensing Fees |
Semi-fixed |
Use 9% of first-year revenue as modeled, but treat seat-based licenses as capacity added in steps. |
Calling every license variable when added modeling seats can create a new fixed monthly layer. |
| Salaried Scan, Modeling, Sales & Coordinator Roles |
Semi-fixed |
Add payroll in hiring steps as field, Building Information Modeling (BIM), sales, and coordination capacity expands. |
Dividing salaries by job count and missing the cash jump when a new full-time employee is hired. |