Why Freelancers Can't Bill 40 Hours a Week: Billable Hours and Your Rate
Ask a new freelancer how many hours they will bill and the answer is often "about 40, like a normal job". Ask someone who has freelanced for a few years and the answer is usually lower, sometimes much lower. The difference is not laziness. It is everything a business needs that no client pays for directly: finding the next client, writing proposals, invoicing, chasing payments, bookkeeping, updating a portfolio, learning a new tool, and the plain gaps between projects.
Billable hours are the single biggest driver of a freelance rate. This guide shows how much, using the Freelance Hourly Rate Calculator, and how to estimate your own number before it costs you money.
One target, six different rates
Take one freelancer who wants to keep $60,000 a year, has $6,000 of business expenses, works 46 weeks a year and uses the calculator's default 30% buffer. Change nothing but the billable hours per week:
| Billable hours a week | Billable hours a year | Recommended hourly rate | Day rate (8 hours) |
|---|---|---|---|
| 15 | 690 | $136.65 | $1,093.17 |
| 20 | 920 | $102.48 | $819.88 |
| 25 | 1,150 | $81.99 | $655.90 |
| 30 | 1,380 | $68.32 | $546.58 |
| 35 | 1,610 | $58.56 | $468.50 |
| 40 | 1,840 | $51.24 | $409.94 |
The revenue needed is the same in every row: $94,285.71. Only the number of hours it is spread over changes. Billing 25 hours instead of 40 means charging $30.75 more per hour. Dropping from 25 to 20 adds another $20.49. Because the rate is a division, it climbs faster and faster as billable hours fall.
The cost of getting it wrong
Suppose you set your rate assuming 40 billable hours ($51.24) but, once you are working, you actually bill 25 a week. Over 46 weeks you would invoice $51.24 × 25 × 46 = $58,926. You needed $94,285.71. The shortfall is $35,359.71, 37.5% of what the year required, and it would come out of your own income, because the expenses and taxes still have to be paid.
This is an easy way for a freelance year to go wrong, and it is invisible until it is too late, because each individual invoice looks fine.
Where the unbilled hours go
A freelancer billing 25 hours who works a 45-hour week spends 20 hours a week on things nobody pays for directly. In that example, 55.56% of working time is billable. Typical uses of the rest:
- Selling: finding leads, calls with prospects, proposals and quotes that do not convert.
- Administration: invoicing, following up late payments, bookkeeping, preparing for tax.
- Delivery overhead: project setup, onboarding a new client, revisions beyond scope, internal notes.
- Keeping skills current: courses, reading, experimenting with tools.
- Gaps: the days between one project finishing and the next starting, and the days a client is slow to send what you need.
Some of this can be reduced: templates for proposals, clear payment terms, longer engagements, retainers. Some of it cannot, and should not be. Selling and learning are what keep a freelance business alive next year.
Weeks matter too
Billable hours per week times working weeks gives billable hours per year, so the weeks setting pulls the same lever. With 25 billable hours a week:
- 48 working weeks: 1,200 hours, $78.57 an hour.
- 46 working weeks: 1,150 hours, $81.99 an hour.
- 42 working weeks: 1,050 hours, $89.80 an hour.
An employee is paid for holidays, vacation and sick days. A freelancer is not, so every week off has to be funded by the weeks worked. A realistic weeks figure subtracts public holidays, the vacation you actually intend to take, some illness, and any seasonal slow period in your field.
How to estimate your own billable hours
If you are already freelancing
Track every working hour for four ordinary weeks and label each as billable or not. A simple spreadsheet or a time-tracking app is enough. Divide billable hours by total hours. Then look back over the past year's invoices: total hours billed divided by weeks worked is your real figure, including the slow months.
If you are about to start
You have no history, so be conservative. Talk to freelancers in your field about their billable weeks, not their best week. Assume your first months will have more selling and less billing than later on. Run the calculator at two or three levels, for example 20, 25 and 30, and look at the spread. If you can only make the numbers work at the top of the range, that is a warning sign.
If your work is project-based
Estimate the hours each project really took, including revisions and meetings, and the number of projects you can realistically win and deliver in a year. Hours per project times projects per year, divided by working weeks, gives a billable-hours figure to enter.
What the buffer does and does not cover
The calculator also applies a buffer, a single percentage of revenue that it describes as covering self-employment tax, non-billable and unpaid time, software and overhead, and profit. It might seem that the buffer already allows for unbilled time, so you could enter your full working hours. Do not. Entering realistic billable hours is the main way the calculator accounts for unbilled time; the buffer is better thought of as covering taxes and a margin for the unexpected. Counting non-billable time in the hours you enter and leaning on the buffer as well gives you a safety margin, which a freelancer needs.
How big the buffer must be to cover taxes depends on your country, state or province, the tax year and your business setup. The calculator does not compute any tax. Check with your tax authority's guidance for the self-employed or a tax professional, and set the buffer high enough to cover it.
A worked year with one slow quarter
Averages hide the shape of a freelance year. Suppose the freelancer above prices at $81.99 for 25 billable hours a week, and for 34 of their 46 working weeks that is exactly what happens. Then a client project ends and nothing replaces it for a while: for the other 12 weeks they bill only 12 hours a week.
- Billable hours for the year: 25 × 34 + 12 × 12 = 994, an average of 21.61 a week rather than 25.
- Revenue at $81.99: $81,498.06.
- Shortfall against the $94,285.71 needed: $12,787.65.
To have hit the target on that year's real hours, the rate would have needed to be $94.85. Nobody can predict a slow quarter in advance, which is exactly why it is worth running the calculator at a lower billable figure than you hope for, and why a cash reserve matters. One quiet stretch is normal; a rate that only works if there never is one is fragile.
You can use this backwards, too. At the end of each quarter, divide the hours you actually billed by the weeks you worked and rerun the calculator. If the rate it returns is well above what you charge, you know early, while there is still time to adjust your pricing, your pipeline or your spending.
Raising billable hours without burning out
If the calculator says your rate is higher than clients will pay, increasing billable hours is one lever, but it has limits. A few ways freelancers do it sustainably:
- Longer engagements. A three-month contract needs one sales cycle; six two-week projects need six.
- Retainers. A fixed number of hours each month with a regular client turns selling time into billing time.
- Billing for things you currently give away. Discovery calls that are really consulting, revisions beyond the agreed scope, and project management can all be scoped and priced.
- Cutting admin time. Templates, an accounting tool and clear payment terms reduce the hours spent chasing invoices.
Working 60-hour weeks to bill 40 is not a plan. If the only way the numbers work is a schedule you could not keep up for a year, the rate, the expenses or the target need another look.
Common questions
Is 25 billable hours a week a rule?
No. It is just the example here. Some freelancers bill more on long contracts; some bill fewer in fields with long sales cycles. Use your own number.
Should I charge by the day to avoid the problem?
Day and project pricing change how you invoice, not how many days a year you can sell. The same arithmetic applies. Our guide to day rates and hourly rates covers the trade-offs.
Does this apply to remote contracting for one client?
If you work full time for one client, your billable hours may be close to your working hours, but you still carry the costs and the gaps between contracts. Enter realistic weeks and expenses.
Should I explain to clients why my rate is higher than a salary?
Usually there is no need, and it rarely helps to walk a client through your costs. Clients compare your price with the value of the work and with other people they could hire. If a client does ask, a calm, honest answer is enough: your rate covers the time spent on their project, plus the costs, taxes and unbilled time that come with running a business rather than holding a job.
Can I bill for travel or time spent in meetings?
That depends on what you agree with the client. Many freelancers bill meetings as project time and state in their terms how travel is handled. Whatever you decide, put it in writing before the work starts, so the hours you count as billable are hours the client expects to pay for.
Run the numbers both ways
- Open the Freelance Hourly Rate Calculator and enter your target, expenses, weeks and buffer.
- Enter the billable hours you hope for and note the rate.
- Enter the billable hours you would have in a slow year and note that rate too.
- Price somewhere you can live with in the slow case.
The figures are planning estimates, not tax or financial advice. For the full method behind each input, see how to set a freelance hourly rate from the income you need.