| Office Rent |
Fixed |
Include $12,000 per month in overhead from Month 1. |
Treating rent as if it rises with traffic. |
| Cybersecurity Insurance |
Fixed |
Include $2,500 per month from Month 1 through Month 60. |
Omitting platform risk coverage from break-even overhead. |
| Software Subscriptions |
Fixed |
Include $4,000 per month as recurring operating overhead. |
Spreading subscriptions by order without a usage driver. |
| Legal and Accounting Retainer |
Fixed |
Include $5,000 per month in the fixed overhead base. |
Treating compliance and finance support as optional. |
| Payroll for Leadership, Engineering, Marketing, Seller Relations, and Support |
Semi-fixed |
Step payroll up by the FTE plan, from 9.0 FTEs in the first year to 35.0 FTEs in Year 5. |
Assuming headcount scales smoothly with revenue. |
| Buyer and Seller Marketing Budgets |
Semi-variable |
Tie spend to CAC and acquisition volume; first-year budgets total $650,000. |
Treating paid acquisition as free growth. |
| Payment Gateway Processing |
Variable |
Apply 3.5% of revenue in the first year, falling to 2.5% by Year 5. |
Using gross revenue as profit before processing fees. |
| Cloud Infrastructure and Hosting |
Variable |
Apply 6.0% of revenue in the first year, falling to 4.0% by Year 5. |
Ignoring hosting growth as usage increases. |