Introduction
Billable means that time, work, or expenses can be charged to a client.
In professional services, the word is most often used when a person or firm performs work for a client and can include that work on an invoice. Law firms, consulting firms, accounting firms, agencies, and other service businesses often use billable time to measure how much client-related work was performed and how much can be invoiced.
If a lawyer spends one hour drafting a contract for a client, that hour is usually billable. If the same lawyer spends one hour in an internal company meeting unrelated to client work, that hour is usually non-billable.
The exact definition depends on the firm, the client agreement, and the type of work performed.
Billable Meaning in Simple Terms
Billable means "chargeable to a client."
A billable activity is work that directly supports a client matter, project, case, engagement, or deliverable. When that work is recorded properly, it can be included in an invoice.
Common billable activities include:
Client meetings and strategy calls
Legal research and document drafting
Contract review and case preparation
Project work and technical consulting
Client communication and matter-related emails
Professional advice and advisory sessions
The key question: Was this work performed for a client and allowed to be charged under the agreement? If the answer is yes, it is likely billable.
What Are Billable Hours?
Billable hours are the amount of time a professional spends on client work that can be invoiced. In many law firms and professional services businesses, time is recorded in increments — six minute, fifteen minute, or another billing structure.
Example A lawyer spends 30 minutes reviewing a contract. The firm records 0.5 billable hours. That time is added to the client matter and may later appear on an invoice.
Billable hours help firms understand how much client work is being performed, how much revenue can be billed, and how efficiently professionals are using their time.
What Counts as Billable Work?
Billable work usually includes tasks that directly benefit a client or move a client project forward.
In a law firm, billable work may include:
Drafting legal documents and reviewing contracts
Preparing court filings and researching legal issues
Attending client calls and case strategy meetings
Reviewing evidence or discovery materials
Communicating with opposing counsel
Preparing for hearings or negotiations
Writing matter-related emails
In a consulting firm, billable work may include:
Client workshops, research, and analysis
Strategy development and implementation work
Client reporting and project planning
Advisory calls and client-facing deliverables
In an accounting firm, billable work may include:
Tax preparation and audit work
Client advisory calls and financial analysis
Compliance support and report preparation
The details vary by industry, but the principle is the same: billable work is client-related work that can be charged.
Billable vs Non-Billable Work
What Is Non-Billable Work?
Non-billable work is work that cannot be charged directly to a client. This does not mean the work is unimportant — many non-billable activities are necessary to run a firm. They simply do not appear as client charges on an invoice.
Common non-billable activities include:
Internal meetings and administrative work
Training and professional development
Business development and marketing
Recruiting and firm management
Software setup and internal reporting
Team coordination not tied to a client matter
Some work may be billable in one situation and non-billable in another. For example, a meeting about a specific client matter may be billable, while a general internal team meeting may not be.
Billable vs Non-Billable: The Main Difference
The main difference is whether the work can be charged to a client.
Non-Billable
Internal, administrative, operational, or business development work. Supports the firm but does not become direct client revenue.
Billable
Directly tied to a client, matter, project, or deliverable. Can become revenue when recorded accurately and approved for billing.
Why Billable Time Matters
Why Billable Time Matters
Billable time matters because it connects work performed with revenue earned. In time-based professional services, missed billable time often means missed revenue.
Accurate billable time helps firms:
Capture revenue from work already performed
Understand workload by client or matter
Improve billing accuracy and reduce write-offs
Track productivity and improve project profitability
Create clearer invoices and support client transparency
This is especially important in law firms, where small tasks can add up quickly across many matters and many lawyers. Learn more about billable time tracking and how to reduce missed hours.
Why Billable Time Gets Missed
Billable time is often missed because professionals are busy doing the work, not documenting the work.
Common reasons include:
People forget short tasks
Time is entered too late — at end of day or week
Work happens across too many disconnected tools
Descriptions are written from memory after the fact
Meetings are not connected to the right matters
Emails and calls are not recorded properly
Professionals resist manual time entry
A five-minute task may seem too small to matter. But across a full team, repeated missed tasks create meaningful revenue leakage.
Examples of Billable and Non-Billable Time
Examples of Billable Time
LegalA lawyer reviews a commercial lease for a client and writes comments. That time is usually billable.
ConsultingA consultant prepares a market entry report for a client. That time is usually billable.
AccountingAn accountant prepares tax filings for a client. That time is usually billable.
AgencyA designer creates campaign assets for a client project. That time is usually billable.
IT ServicesAn engineer configures a client environment. That time is usually billable.
Examples of Non-Billable Time
LegalA lawyer attends a general firm training session. That time is usually non-billable.
ConsultingA consultant joins an internal planning meeting not connected to a client project. That time is usually non-billable.
AccountingAn accountant updates internal templates. That time is usually non-billable.
AgencyA designer works on the agency's own website. That time is usually non-billable.
What Is a Billable Rate?
A billable rate is the amount charged for one unit of billable time. In many professional services firms, the rate is charged by the hour. Different people may have different rates based on seniority, role, skill, or client agreement.
Example Rates Partner$500 / hr Associate$300 / hr Paralegal$150 / hr
What Is Billable Utilization?
Billable utilization measures how much of a person's working time is spent on billable work. It is often used by law firms, consulting firms, and agencies to understand productivity and capacity.
Example A consultant works 40 hours in a week. 24 of those hours are billable. Billable utilization = 60%.
High utilization may indicate strong revenue productivity, but should be monitored carefully — consistently high rates can signal overwork.
What Is a Billable Entry?
A billable entry is a recorded item of billable work. A strong billable entry usually includes the client, matter or project, date, time, person, a clear description of the work, and a task or activity code when required.
Clear Entry
"Reviewed revised purchase agreement and prepared comments regarding indemnity and termination provisions."
Vague Entry
"Worked on contract."
The clear entry tells the client what was done. Clearer entries reduce billing questions and improve client trust.
Why Clear Billable Descriptions Matter
A billable description explains the work behind the time. Clear descriptions matter because clients want to understand what they are paying for, and billing teams need enough detail to review invoices properly.
Poor descriptions can create:
Client questions and billing disputes
Write-offs and delayed invoices
More internal review time
Lower client trust in the relationship
How to Improve Billable Time Tracking
Firms can improve billable time tracking by making time entry easier, more timely, and more connected to real work.
Useful practices include:
Record time as close to the work as possible
Use clear, specific descriptions
Connect time to the right client and matter
Review calendar activity regularly for missed work
Use task or activity codes consistently
Track both billable and non-billable work
Use software that fits existing workflows
Common Mistakes with Billable Time
Common mistakes include:
Waiting too long to enter time
Relying only on memory for descriptions
Forgetting short calls, emails, or tasks
Recording time under the wrong matter
Ignoring calendar-based work
Using tools that create extra friction
These mistakes are common because professional work is fragmented — people move quickly between tasks, clients, systems, and conversations.
Billable Time in Law Firms
Billable time is especially important in law firms because many legal services are still billed by the hour. Lawyers may work across multiple matters in one day — reviewing documents, attending client calls, drafting emails, researching issues, and preparing filings.
A strong legal timekeeping process helps firms:
Reduce missed billable hours
Improve time entry quality and billing review
Reduce client disputes and improve realization
Understand lawyer workload and track work in progress
In legal services, billable time is not just an administrative metric — it directly affects revenue, client communication, and firm performance. See how legal time and billing software can help.
Billable Time in Professional Services
Professional services firms also depend on billable time to understand profitability. Consulting, accounting, IT services, engineering, marketing, and advisory firms often need to know which projects are profitable, which teams are overloaded, and whether pricing matches delivery effort.
Even when a firm uses fixed fee pricing, tracking billable and non-billable time can still help measure project profitability and identify scope issues early.
Is All Client Work Billable?
Not always. Some client-related work may be excluded from billing depending on the agreement — a client contract may limit billing for administrative tasks, internal coordination, travel, training, or certain types of communication.
Some firms also choose not to bill certain tasks as a client service decision. That is why billable policies should be clear, so professionals understand what can be charged, what cannot, and how to describe the work correctly.
Billable Meaning: Quick Summary
Billable means work, time, or expenses that can be charged to a client. Billable hours are the recorded time spent on client work. Non-billable work supports the business but is not charged to clients. Clear billable time tracking helps firms capture revenue and create transparent invoices. MIRA CTA MIRA Timekeeping AI
Make Billable Time Easier to Capture and Review
Understanding what is billable is the first step. Capturing it accurately is the harder part. MIRA helps law firms capture billable and non-billable work activity, review time inside Microsoft Teams, and prepare clearer billable descriptions before billing review.
Learn about MIRA legal timekeeping software See billable time tracking →
For a connected workflow, explore Billable Time Tracking for Law Firms.
Related Resources
Frequently Asked Questions
What does billable mean?
Billable means that work, time, or expenses can be charged to a client. In professional services, billable work usually refers to client-related work that can be included on an invoice.
What are billable hours?
Billable hours are the amount of time spent on client work that can be billed. Law firms, consulting firms, accounting firms, and agencies often use billable hours to track revenue-related work.
What is an example of billable work?
An example of billable work is a lawyer reviewing a contract for a client, a consultant preparing a client report, or an accountant completing tax work for a client. The key is that the work directly supports a client matter and can be charged under the agreement.
What is non-billable work?
Non-billable work is work that cannot be charged directly to a client. Examples include internal meetings, training, administration, marketing, and general business development. This work supports the firm but does not generate direct client revenue.
Why is billable time important?
Billable time is important because it connects client work with revenue. If billable time is missed or recorded poorly, firms may lose revenue or face billing disputes. Accurate records also help firms understand workload, improve billing quality, and build client trust.
Can work be client-related but not billable?
Yes. Some client-related work may not be billable depending on the client agreement, billing policy, or firm decision. For example, travel, certain administrative tasks, or internal coordination connected to a matter may be excluded from billing.
How can firms track billable time more accurately?
Firms can track billable time more accurately by recording time promptly, using clear descriptions, connecting time to the correct client or matter, reviewing calendar activity, and using billable time tracking software that fits daily workflows.
