Design Project Profit Calculator
Calculate net profit, profit margins, overhead absorption, and effective hourly realization on fixed-fee client design contracts.
Agency Project Profitability & Margin
Project Net Margin & Realization Formula
Net Profit = Contract Price - Labor Cost - Direct Expenses - Overhead; Net Margin % = (Net Profit / Contract Price) × 100- Internal Labor Cost: Designer hours spent multiplied by internal loaded wage or cost of delivery ($/hr).
- Overhead Allocation: Fixed share of company operating costs allocated to this job (standardly 10–15% of revenue).
- Effective Hourly Realization: (Contract Price - Direct Expenses - Overhead) / Total Hours Worked. Measures true earnings per hour invested.
Step-by-Step Worked Example
Calculation Steps:
- Internal Labor Cost = 60 × $45.00 = $2,700.00.
- Overhead Allocation = $8,000 × 0.10 = $800.00.
- Total Project Cost = $2,700 (labor) + $600 (expenses) + $800 (overhead) = $4,100.00.
- Net Profit = $8,000.00 - $4,100.00 = $3,900.00.
- Net Profit Margin = ($3,900 / $8,000) × 100 = 48.8%.
- Effective Hourly Realization = ($8,000 - $600 - $800) / 60 hrs = $110.00 / hour.
How to Use This Calculator
- 1Enter the agreed contract quote billed to the client.
- 2Input the actual team hours spent and your internal cost per labor hour.
- 3Add direct external project expenses and overhead allocation percentage.
- 4View net profit dollars, net profit margin percentage, and effective hourly realization.
Assumptions & Limitations
- Internal labor cost reflects actual wages plus payroll taxes, not client billing rates.
- Healthy creative agency target net profit margins standardly range between 30% and 50%.
Frequently Asked Questions
What is effective hourly realization?
Effective hourly realization reveals how much money your agency actually banked for every hour worked on a flat-fee project. If you quote $5,000 and finish in 25 hours, your realization is $200/hr. If scope creep drags it to 100 hours, your realization drops to $50/hr.
What is a healthy profit margin for a design agency?
Target gross margins on project delivery should be 50% to 60%, and net profit margins after all overhead, owner salaries, and taxes should be 20% to 35%.
How does scope creep hurt project profitability?
Unbilled revisions and extra meetings eat away at your hourly realization. Doing 20 unbilled hours on a $5,000 project cuts your effective rate from $100/hr (at 50 hours) down to $71/hr (at 70 hours).
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