Ask any new freelancer how many billable hours they work per week and they'll say 40. Ask a freelancer with 3 years of experience and they'll say 28. Ask one who's been doing it for 10 years and they'll say 25 — and they'll have tracked data to prove it.
The gap between perceived and actual billable hours is one of the most expensive mistakes in freelancing. It causes systematic underpricing, because every hourly rate calculation that uses 40 billable hours/week is quietly ignoring 12–16 hours of real work that will never appear on an invoice.
What counts as non-billable time?
Non-billable time is any time you work that you can't charge a client for. The list is longer than most freelancers expect:
- Proposals and pitches — writing RFP responses, creating scopes of work, pricing projects
- Client communication overhead — emails, Slack messages, status updates beyond normal project touchpoints
- Invoicing and bookkeeping — creating and sending invoices, chasing late payments, reconciling expenses
- Networking and business development — attending meetups, maintaining relationships, responding to referral inquiries
- Professional development — reading, courses, staying current on your craft
- Administrative tasks — email inbox management, scheduling, tool maintenance
- Marketing and portfolio — updating your site, case studies, testimonials, social presence
- Between-project downtime — gaps between clients, especially for new freelancers
How to calculate your real billable percentage
The only accurate way to know your billable percentage is to track your time for at least two full weeks — not your estimate of your time, your actual time.
1. Use a time tracker (Toggl, Harvest, or even a spreadsheet) for 2 weeks
2. Log every work hour: client work, admin, proposals, breaks, everything
3. At the end: billable hours ÷ total hours worked = your billable %
Example: 28 billable hours ÷ 42 total hours = 66.7% billable
Most freelancers who run this exercise are surprised. Industry data consistently shows that independent professionals average 60–75% billable time, with the lower end more common for newer freelancers managing their own sales pipeline.
How billable percentage affects your hourly rate
This is where the math gets stark. If you need $75,000/year in net income and you work 40 hours/week:
- At 100% billable (the dangerous assumption): 2,080 billable hours/year
- At 70% billable (realistic): 1,456 billable hours/year
- At 60% billable (common for new freelancers): 1,248 billable hours/year
Fewer billable hours means each billable hour must carry more of your income burden. Here's the impact on your minimum rate (before taxes and expenses, purely for illustration):
$75,000 target ÷ 1,456 hours (70%) = $52/hr
$75,000 target ÷ 1,248 hours (60%) = $60/hr
And these numbers don't include taxes or expenses yet. Once you add self-employment tax, federal income tax, and business costs, those rates roughly double. The 70% billable scenario yields a minimum hourly rate of about $75–$85 for a $75,000 net income goal.
How to improve your billable percentage
The goal isn't to eliminate non-billable work — some of it is essential. The goal is to be intentional about it:
- Batch administrative work. Dedicate one morning per week to invoices, proposals, and email. This prevents admin from bleeding into deep work time throughout the week.
- Use templates. Every proposal, contract, and invoice you write from scratch is time you could have reclaimed. Build reusable templates for your most common project types.
- Track your time even for internal work. What gets measured gets managed. Freelancers who track time — including non-billable — consistently report better awareness and higher billable percentages over time.
- Set a "minimum billable" week target. If your goal is 28 billable hours, treat that as a weekly commitment. When you hit it, stop taking on more. When you miss it, investigate why.
- Consider retainer arrangements. Retainer clients reduce proposal and pitch overhead significantly, stabilizing both your time and income.