| CEO, CTO, and Sales Manager payroll |
Fixed |
Include monthly salary as core overhead because each role stays at 1.0 FTE from Year 1 through Year 5. |
Tying executive salaries to order volume instead of treating them as baseline burn. |
| Lead Software Engineer payroll |
Semi-fixed |
Add capacity in steps as headcount rises from 1.0 FTE in Year 1 to 5.0 FTE in Year 5. |
Modeling engineering payroll as a straight percentage of revenue. |
| Account Manager and Customer Support payroll |
Semi-fixed |
Step the expense up as service headcount expands from 1.0 FTE each in Year 1 to 5.0 FTE each in Year 5. |
Treating support labor as fully variable per load. |
| Office Rent |
Fixed |
Include $3,500 per month from Month 1 through Month 60 in fixed overhead. |
Leaving rent out because the marketplace is online. |
| Legal & Compliance |
Fixed |
Include $1,200 per month from Month 1 through Month 60 as recurring overhead. |
Only modeling legal work as a one-time setup item. |
| Transaction Processing Fees |
Variable |
Apply the first-year rate of 1.5% of revenue, declining to 1.1% by Year 5. |
Entering processing as a flat monthly fee. |
| Cloud Hosting & Infrastructure |
Variable |
Apply the first-year rate of 2.0% of revenue, declining to 1.2% by Year 5. |
Putting all hosting in fixed overhead when the model scales it with revenue. |
| Sales Team Commissions and Digital Advertising Spend |
Variable |
Use first-year rates of 5.0% for sales commissions and 8.0% for digital advertising against revenue. |
Mixing commissions with salaries or burying paid acquisition in fixed overhead. |