| CEO / Founder payroll |
Fixed |
Include as committed overhead: $150,000 per year, or $12,500 per month. |
Leaving founder pay out and overstating break-even profit. |
| Lead Software Engineer payroll |
Fixed |
Include as committed overhead: $130,000 per year, or about $10,833 per month. |
Treating core engineering payroll like usage-based infrastructure. |
| Cloud Infrastructure & Hosting |
Variable |
Deduct 5.0% of revenue in the first year before calculating contribution margin. |
Treating hosting as fixed when customer activity drives usage. |
| Third-Party Data Processing Licenses |
Variable |
Deduct 3.0% of revenue in the first year as a revenue-linked delivery expense. |
Ignoring data-processing fees until gross margin looks too high. |
| Sales Commissions |
Variable |
Deduct 4.0% of revenue in the first year because commissions rise with sales volume. |
Putting commissions in fixed overhead and understating variable drag. |
| Customer Support Scaling Costs |
Variable |
Deduct 3.0% of revenue in the first year to reflect support load from customer growth. |
Modeling support as flat while tickets rise with paid users. |
| Internal Software Licenses |
Fixed |
Include $2,000 per month in fixed overhead for CRM and development tools. |
Spreading tool subscriptions across each customer like a variable fee. |
| R&D Project Materials & Consultants |
Fixed |
Include $3,000 per month as fixed overhead unless tied directly to usage. |
Treating all consultant spend as variable without a usage trigger. |