| Office & Storage Rent |
Fixed |
Include $1,500/month in fixed overhead from Month 1 through Month 60. |
Spreading rent across jobs and making margin look cleaner than cash flow. |
| Business & Vehicle Fleet Insurance |
Fixed |
Include $800/month as required monthly overhead. |
Modeling insurance as a per-service charge instead of a standing bill. |
| Founder, Lead Technician, and Cleaning Technician Payroll |
Fixed |
Use Year 1 salaries of $185,000/year, about $15,417/month, before added staff. |
Treating salaried labor like hourly job labor and understating break-even sales. |
| Cleaning Agents & Supplies |
Variable |
Apply 8.0% of revenue in Year 1, falling to 6.0% by Year 5. |
Entering supplies as a flat monthly amount and missing job-volume pressure. |
| Specialized Tool & Equipment Consumables |
Variable |
Apply 2.0% of revenue in Year 1, falling to 1.5% by Year 5. |
Mixing consumables with purchased equipment and blurring operating margin. |
| Sales Commissions & Referral Fees |
Variable |
Apply 7.0% of revenue in Year 1, falling to 5.0% by Year 5. |
Burying referral fees in marketing and overstating contribution margin. |
| Vehicle Fuel & Maintenance per Service |
Variable |
Apply 4.0% of revenue in Year 1, falling to 3.0% by Year 5. |
Treating route usage as fixed and missing the cost of scattered jobs. |
| Annual Marketing Budget |
Semi-fixed |
Budget $25,000 in Year 1, stepping up to $120,000 by Year 5. |
Putting van purchases into monthly break-even instead of startup capital spending. |