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6 min read · Published September 4, 2026
The Freelancer Hourly Rate Formula: Accounting for Taxes, Overhead & Billable Hours
Author: Sarah Jenkins (Tax & Accounting Contributor)
The formula to convert a full-time corporate salary into an equivalent freelance billable hourly rate without undercharging for business expenses.
### The 2,000-Hour Illusion
A standard full-time employee works approximately 2,080 hours per year (40 hours/week $\times$ 52 weeks). An employee earning $100,000 might divide $100,000 by 2,000 to arrive at a $50/hour rate.
If an independent consultant or agency charges $50/hour, they will face **severe financial shortfall**.
#### The Freelancer Reality Equation:
1. **Billable Utilization Ratio:** In consulting and design, you spend 25–40% of your time on non-billable overhead: invoicing, client acquisition, bookkeeping, and scope proposals. A realistic billable year is only **1,000 to 1,200 hours**.
2. **Self-Employment Tax:** Freelancers pay both the employee and employer portions of FICA (15.3% total self-employment tax).
3. **Omitted Benefits:** Health insurance premiums, retirement match equivalents, paid vacation, and software subscriptions add 20–30% in direct out-of-pocket overhead.
#### The Conversion Rule of Thumb
To replace a $100,000 salary with equivalent net lifestyle and retirement contributions:
$$\text{Target Gross Revenue} \approx \text{Salary} \times 1.35 = \$135,000$$
$$\text{Hourly Rate} = \frac{\$135,000}{1,100 \text{ Billable Hours}} = **\$122.72 / \text{hour}$$
Always quote based on billable capacity rather than nominal calendar hours. Run your exact figures through our **Freelance Hourly Rate Calculator**.
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