Worked example: solo consultant rate
The default example starts with $85,000 target personal income, 20% benefits replacement, $800 monthly business expenses, 28% tax reserve, and 10% profit buffer.
Benefits replacement is $85,000 x 20% = $17,000. Personal need before taxes is $102,000.
Pre-tax owner draw is $102,000 / (1 - 28%) = $141,667. Annual expenses are $800 x 12 = $9,600.
Base revenue is $141,667 + $9,600 = $151,267. Adding a 10% buffer gives $166,393 target annual revenue.
Available days are 260 - 20 - 10 - 5 = 225. Capacity hours are 225 x 8 = 1,800.
Billable hours are 1,800 x 65% = 1,170. Required rate is $166,393 / 1,170 = $142.2 per billable hour.
How the contractor rate formula works
Annual revenue target = annual business expenses + target personal income and benefits adjusted for tax reserve, then multiplied by a profit buffer. Hourly rate = annual revenue target / billable hours.
How to choose billable utilization
Use a lower utilization when you spend more time on sales, client calls, proposals, learning, admin, support, or unpaid travel. A lower utilization raises the required hourly rate.
How to use the floor rate
The floor rate removes the profit buffer. Treat it as the minimum model result, not the rate you should quote. Scope risk, payment terms, rush work, and client value can justify a higher price.
What to do next
Compare the result with market rates, package your services around outcomes, test the rate with new leads, and keep the assumptions updated from actual billable hours and expenses.