Billable vs non-billable hours, explained (with examples)
Last updated: July 2026
"Billable hours" sounds simple until you try to draw the line in practice. Is a client call billable? A code review? The forty minutes you spent learning the framework their project needs? Getting this right is not pedantry — it decides your income, your invoices' credibility, and whether you actually know how profitable your work is. This is a plain-English guide with examples, the math that matters, and how to keep the two apart without extra effort.
The definitions, with examples
Billable hours are the time you can legitimately charge a client for work done on their behalf — the hours that appear on an invoice. Non-billable hours are time you work but cannot charge to a specific client.
Concretely, billable usually covers:
- Focused project work — building, designing, writing, coding.
- Client meetings, calls and email about their project.
- Research, review and testing tied directly to their deliverable.
Non-billable usually covers:
- Your own admin — invoicing, bookkeeping, proposals for future work.
- Marketing and sales — the pitch that has not become a paying project yet.
- General skill-building not specific to a live engagement.
- Internal meetings and tooling.
Why track non-billable time at all
It is tempting to only track what you can charge. Resist it. Non-billable time is the true cost of running your business, and if you cannot see it you will systematically overestimate how much of your week is actually earning. Tracking both is what lets you answer the two questions that matter: how much of my time converts to revenue (utilization) and what do I really earn per hour once the unpaid hours are counted (effective rate). Ignore non-billable time and both numbers are fiction.
The gray areas — how to decide
Most disputes live in a handful of gray zones. A few rules of thumb keep you consistent and defensible:
- Rework and bug fixes. Fixing your own mistake is generally non-billable; changing something because the client changed their mind is billable scope.
- Learning. General upskilling is on you; learning a specific tool a project genuinely requires is a judgement call — agree it with the client in advance if it is significant.
- Communication. Substantive calls and email about the work are billable; a quick "thanks, received" usually is not.
- Travel and setup. Set the rule in your contract, not in the moment.
The meta-rule: decide the policy once, apply it the same way every time, and write the reasoning into the entry's description so it survives a question three months later.
The math: utilization and effective rate
Two calculations turn tracked time into insight.
Utilization rate = billable hours ÷ total hours worked. If you bill 25 hours out of a 40-hour week, that is 63% — and that is normal; most independents land somewhere between 60% and 80% once admin and sales are counted. If yours is far lower, your non-billable load is the thing to fix, not your rate.
Effective hourly rate = total earnings ÷ total hours worked (billable and non-billable). Your headline rate might be $120/hour, but at 65% utilization your effective rate is closer to $78. This is the number that should inform what you charge — and the one clients never see. A good tracker computes it for you per client, so you can spot the account that looks busy but barely pays.
Keeping them separated in practice
None of this works if separating billable from non-billable is a chore, because then you will not do it. The trick is to decide per entry, at capture time, with a single toggle — and to set a sensible default per project so most entries are already right. In Døgn, every entry has a billable switch and each project has a "billable by default" setting; the reports then break out the internal (non-billed) share and show your effective hourly rate per client automatically. Raw time is always kept intact — only the billed view is rounded — so your internal analysis stays exact. Once the split is clean, writing it up is easy: see how to write a timesheet.
Questions, answered
What counts as a billable hour?
Time spent on work for a specific client that you can legitimately charge them for: focused project work, meetings and communication about their project, and research or testing tied to their deliverable. If it advances a paying client’s deliverable, it is generally billable.
Should I track non-billable hours?
Yes. Non-billable time — admin, sales, general learning — is the real cost of your business. Tracking it lets you calculate utilization (billable ÷ total hours) and your effective hourly rate, the numbers that reveal whether your pricing actually works.
What is a good utilization rate?
Most independent consultants and freelancers run 60–80% once admin, sales and internal work are counted. There is no universal target; the point is to measure it, keep it steady, and price so your effective rate — earnings ÷ all hours worked — meets your goal.
Is a client call billable?
A substantive call about the client’s project is normally billable; a brief scheduling or acknowledgement exchange usually is not. Set the policy once, apply it consistently, and note the context in the entry so it holds up if questioned.