| Design studio rent |
Fixed |
Include $7,500 per month in baseline overhead from Month 1 through Month 60. |
Allocating rent by project and making break-even look easier when sales rise. |
| Design software subscriptions |
Fixed |
Include $1,200 per month as recurring operating overhead within the monthly break-even floor. |
Treating core software as optional job expense instead of required capacity. |
| Professional liability insurance |
Fixed |
Include $850 per month before calculating how many billable hours cover overhead. |
Leaving insurance out because it does not attach to one client invoice. |
| Project-specific travel |
Variable |
Deduct 5% of first-year revenue before contribution margin; it moves with client work. |
Budgeting travel as flat overhead when site visits rise with project volume. |
| Referral and partner commissions |
Variable |
Deduct 4% of revenue as a sales-linked charge before measuring break-even contribution. |
Counting referred revenue at full margin and ignoring the commission drag. |
| Fabrication subcontracting fees |
Variable |
Deduct 14% of first-year revenue as delivery burden tied to signage production work. |
Counting fabrication pass-through revenue as full-margin design revenue. |
| Material and logistics costs |
Variable |
Deduct 6% of first-year revenue for materials and shipping tied to completed projects. |
Blending materials into design fees and overstating gross margin. |
| Utilities and high-speed internet |
Semi-variable |
Model the $600 monthly base, then review usage if studio load or equipment use expands. |
Treating every utility dollar as fixed when usage can rise with active production. |