If you've ever looked at a legal invoice and seen short codes next to each time entry, you may have wondered what they mean. These are called legal billing codes. They help law firms describe the work they performed in a clear and consistent way.
Many insurance companies, corporate legal departments, and large clients require law firms to use billing codes when submitting invoices. Using the correct codes makes invoices easier to review and helps reduce payment delays.
In this guide, we'll explain what legal billing codes are, why they matter, and how to use them correctly.
Legal billing codes are standard codes used to identify different types of legal work. Instead of writing only a description, lawyers assign a code that tells the client what type of task was completed.
For example, drafting a contract, attending a court hearing, or reviewing documents may each have a different billing code.
These codes create a common language between law firms and clients, making invoices more organized and easier to understand.
Billing codes offer several benefits for both law firms and clients.
They help:
Make invoices clear and consistent
Speed up the invoice review process
Reduce billing questions from clients
Improve payment approval rates
Track how time is spent across different matters
Generate better reports for law firm management
For clients, billing codes make it easier to see exactly where legal fees are being spent.
The most widely used billing code standard is the Uniform Task-Based Management System (UTBMS).
UTBMS was created to standardize legal billing across the industry. Many corporate legal departments and insurance companies require invoices to follow this format.
UTBMS organizes legal work into several categories, including:
Tasks
Activities
Expenses
Each category uses its own set of codes.
Task codes describe the type of legal work being performed.
Here are a few examples.
| Code | Description |
|---|---|
| L110 | Fact investigation and development |
| L120 | Analysis and strategy |
| L210 | Pleadings |
| L310 | Discovery |
| L330 | Depositions |
| L410 | Trial preparation |
| L510 | Appeals |
These codes help clients understand the overall purpose of the work performed.
Activity codes describe how the work was completed.
Examples include:
| Code | Description |
|---|---|
| A101 | Plan and prepare |
| A102 | Research |
| A103 | Draft or revise documents |
| A104 | Review and analyze documents |
| A105 | Communicate with clients |
| A106 | Communicate with opposing counsel |
| A107 | Attend meetings |
| A108 | Attend court hearings |
For example, if a lawyer drafts a motion, the invoice may include a litigation task code along with the activity code for drafting documents.
Expense codes identify costs that are billed separately from attorney time.
Examples include:
Filing fees
Court reporter fees
Copying charges
Travel expenses
Postage
Overnight delivery
Expert witness fees
Using expense codes keeps invoices organized and makes it easier for clients to review additional charges.
A time entry might look like this:
Task Code: L310
Activity Code: A104
Description: Reviewed opposing counsel's document production and identified key evidence for discovery.
Time: 2.5 hours
This gives the client both a written explanation and standardized billing codes.
Choose the billing code that best matches the work performed. Using incorrect codes can lead to invoice rejections or payment delays.
Billing codes should always be paired with a meaningful description.
Instead of writing:
"Worked on case."
Write:
"Reviewed medical records and prepared summary for settlement discussion."
Specific descriptions help clients understand the value of the work.
Enter your time as soon as possible after completing the work. This improves accuracy and reduces the chance of forgetting important details.
Some clients have their own billing requirements in addition to standard billing codes.
Before submitting invoices, review the client's billing guidelines to make sure your entries meet their requirements.
Some of the most common mistakes include:
Using the wrong billing code
Writing descriptions that are too vague
Combining multiple tasks into one time entry
Billing administrative work as legal work
Forgetting required expense codes
Not following client billing guidelines
Avoiding these mistakes can help invoices get approved faster.
Legal billing software makes it much easier to manage billing codes.
Instead of memorizing hundreds of codes, attorneys and staff can select the appropriate code from a built-in list while entering their time.
Many legal billing systems also:
Suggest billing codes based on the task
Check for missing information
Flag possible billing errors
Create LEDES-compliant invoices
Generate reports by billing code
Track attorney productivity
This reduces manual work and improves billing accuracy.
Not always. Small law firms working with individual clients may not need them. However, many corporate clients, insurance companies, and government agencies require standardized billing codes.
UTBMS stands for Uniform Task-Based Management System. It is the most common standard used for legal billing codes.
Yes, many law firms create internal billing codes for reporting purposes. However, if a client requires UTBMS or another standard, those codes should be used when submitting invoices.
No. Billing codes should support your time entries, not replace them. Every invoice should include clear, detailed descriptions of the work performed.
Legal billing codes make legal invoices more organized, consistent, and easier to review. They help law firms communicate the work they performed while making the billing process smoother for clients.
Whether you're a solo attorney or part of a large firm, understanding billing codes can improve billing accuracy, reduce invoice rejections, and help you get paid faster.
If your firm uses legal billing software, taking advantage of built-in billing code support can save time and make invoicing much easier.