Billable hours best practices help law firms record legal work accurately, explain it clearly, and move it through review with fewer corrections.
The strongest process begins while the work is still recent. Delayed time entry forces lawyers to reconstruct their day from memory, which increases the risk of missed tasks, estimated durations, incorrect matters, vague descriptions, and billing-code errors.
A dependable workflow should cover capture, classification, narrative quality, client rules, lawyer review, and approval.
What Are Billable Hours Best Practices?
Billable hours best practices are the policies and daily habits used to create accurate, complete, and reviewable legal time entries.
A strong entry should answer:
What work was performed?
Which client and matter did it support?
How long did the work take?
Why was the work relevant?
Is the work billable under the engagement?
Are the required task or activity codes included?
Does the entry comply with the client’s billing guidelines?
Has the timekeeper reviewed the final entry?
These practices also matter for fixed-fee and alternative-fee work. Time data can still help a firm assess staffing, effort, scope, profitability, and future pricing.
Core Billable Hours Best Practices
Law firms should build their timekeeping policy around several principles:
Record work contemporaneously or review it the same day.
Capture the actual work before deciding whether to write it down.
Select the correct client and matter.
Confirm the actual duration.
Write a clear billing narrative.
Apply the correct billing increment.
Use required billing codes.
Follow matter-specific client rules.
Separate unrelated tasks where required.
Require lawyer review before release.
The process should be easy enough to follow during a busy legal workday.
Capture Work Promptly and Completely
Record time while the work is being performed or as soon afterward as practical.
Prompt timekeeping improves the accuracy of:
Work dates
Durations
Matter selection
Participants
Documents reviewed
Calls and meetings
Research topics
Billing descriptions
Task and activity codes
A lawyer should not rely only on a calendar. Calendar events can support meetings and hearings, but they often miss document work, short communications, legal analysis, and task switching.
Where a firm uses automatic activity capture, the captured activity should still be reviewed before it becomes a time entry.
Record Actual Work Before Billing Decisions
Timekeepers sometimes reduce or omit time before a billing attorney reviews it because they believe a task took too long or may not be chargeable.
That removes information from the firm’s records.
A stronger workflow is:
Record the actual work performed.
Classify it as billable, non-billable, no charge, or uncertain.
Let the authorized reviewer decide how it should be treated.
Preserve the reason for any adjustment.
This gives matter leaders a more accurate view of effort, staffing, training needs, pricing, and profitability.
It also separates accurate timekeeping from commercial billing judgment.
Select the Correct Client, Matter, and Billing Status
A detailed entry assigned to the wrong matter is still inaccurate.
Before saving an entry, confirm:
Client
Matter
Matter phase
Responsible lawyer
Billing arrangement
Billable or non-billable status
Required task or activity code
Matter status
Timekeeper authorization
Matter names should be clear, and closed or restricted matters should be visibly identified.
When one client has several active matters, the timekeeper should not rely only on a contact name or document title.
Write Clear Billing Narratives
A billing narrative should explain the work and its purpose.
A useful formula is:
Action + subject + purpose
Weak:
Research.
Clearer:
Researched enforceability of limitation-of-liability provision for draft motion.
Weak:
Emails regarding case.
Clearer:
Corresponded with client regarding document collection status and production deadlines.
Weak:
Review documents.
Clearer:
Reviewed collected records for responsiveness and privilege before production.
Descriptions should be specific without revealing unnecessary confidential or privileged information.
Separate Tasks, Apply Increments, and Use Codes
Unrelated tasks should be separated when the client prohibits block billing or when a combined entry would be difficult to evaluate.
Instead of:
Reviewed correspondence, researched jurisdiction, drafted discovery requests, and conferred with client.
Use separate entries where appropriate:
Reviewed opposing counsel correspondence regarding discovery schedule
Researched personal-jurisdiction issue for motion strategy
Drafted first requests for production
Conferred with client regarding collection responsibilities
The firm should also apply the client-approved billing increment consistently.
Common methods include:
Six-minute increments
Fifteen-minute increments
Exact minutes
Client-specific grouping rules
Where required, the timekeeper should apply task and activity codes that agree with the narrative.
Related guides include Billing Increments Explained, ABA Billing Codes, and UTBMS Litigation Codes.
Follow Client and Matter-Specific Billing Rules
Firm-wide policy is not enough when clients have different requirements.
Matter-specific rules may cover:
Approved timekeepers
Rates
Billing increments
Block billing
Internal conferences
Research
Travel
Administrative work
Required codes
Budget thresholds
Invoice deadlines
Confidentiality language
Advance approval
Store the active requirements with the matter and translate lengthy outside counsel guidelines into a concise checklist.
See Legal Billing Guidelines and Outside Counsel Guidelines.
Daily Review Workflow
A practical daily workflow is:
Review calendars, documents, email, calls, and captured activity.
Identify missing work.
Confirm client and matter.
Confirm duration.
Classify billable and non-billable work.
Improve vague descriptions.
Apply required codes.
Remove duplicates and resolve overlaps.
Exclude personal or irrelevant activity.
Check client-specific rules.
Save or release the reviewed entry.
Daily review should require less effort than reconstructing and correcting a week of work.
Billable Hours Quality Checklist
Before approving an entry, confirm:
The work date is correct
The duration is accurate
The correct client and matter are selected
The work is classified correctly
The description explains the task and purpose
Unrelated tasks are separated where required
The permitted billing increment is used
Required codes are correct
The timekeeper is approved for the matter
Client guidelines are followed
Confidential information is not unnecessarily disclosed
The entry has been reviewed before release
Metrics Law Firms Should Monitor
A firm should audit patterns rather than only individual entries.
Useful measures include:
Time-entry submission lag
Missing-time days
Matter-correction rate
Duration-correction rate
Narrative exception rate
Block-billing rate
Billing-code correction rate
Duplicate and overlap rate
Internal write-downs
Client adjustments
Invoice rejections
Billing realization
Patterns can reveal training, workflow, staffing, technology, pricing, or matter-setup problems.
Frequently Asked Questions
What is the best way for lawyers to track billable hours?
Capture work close to when it occurs and review it the same day. The firm may use manual entry, timers, passive activity capture, or a combination.
How detailed should a billable-hours entry be?
It should identify the work, subject, and purpose clearly enough for a reviewer to understand the charge without revealing unnecessary confidential information.
Should lawyers reduce their own time before review?
Firms generally benefit from recording the actual work first and allowing the authorized reviewer to decide whether time should be billed, written down, or treated as no charge.
Is block billing always prohibited?
No. Requirements vary by client. Unrelated tasks should be separated when the client prohibits block billing or when the combined entry would be difficult to evaluate.
Can AI automatically submit legal time?
AI can help capture activity and draft entries, but lawyers should review the matter, duration, description, codes, and billing treatment before release.
