| Office Rent |
Fixed |
Include $2,500 per month in the fixed overhead that monthly gross profit must cover. |
Spreading rent across projects and hiding the true monthly revenue floor. |
| Core Software Licenses |
Fixed |
Include $800 per month as baseline operating overhead, separate from project-specific tools. |
Mixing core systems with usage-based software and overstating gross margin. |
| CEO/Founder Salary |
Fixed |
Include $100,000 annual salary as recurring payroll in break-even revenue. |
Ignoring founder pay and showing break-even before the business funds real labor. |
| Project Manager Salary |
Fixed |
Include $65,000 annual salary for Year 1 staffing before calculating required contribution. |
Treating delivery management as optional even though projects need coordination. |
| Freelancer Payouts |
Variable |
Deduct 20% of Year 1 revenue before fixed costs to calculate contribution margin. |
Treating freelancer payouts like overhead instead of direct delivery expense. |
| Quality Assurance & Editing Services |
Variable |
Deduct 4% of Year 1 revenue as project volume rises and more review work is needed. |
Leaving review labor out of gross margin and overstating project profitability. |
| Annual Marketing Budget |
Semi-variable |
Model planned spend from $25,000 in Year 1 to $180,000 in Year 5, then check CAC from $500 to $300. |
Using budget alone and not testing whether spend creates enough new customers. |
| Administrative Assistant |
Semi-fixed |
Add the role when it starts in Month 19, because staffing rises in steps as workload grows. |
Averaging future headcount across early months and overstating early overhead. |