eBilling for lawyers begins before the billing team creates an invoice.
The lawyer’s time entry supplies much of the information later used in:
Prebill review
LEDES invoice files
Outside counsel guideline checks
Task and activity analysis
Timekeeper and rate validation
Matter budget review
Client invoice review
Legal-spend reporting
Billing staff can correct formatting and administrative fields, but they may not know:
What the lawyer actually did
Why the work was necessary
Which matter applies
Which task code applies
Whether the duration is accurate
Whether the description reveals too much information
That makes lawyer review an essential part of eBilling quality.
For the broader operational process, see eBilling for Law Firms.
What Is Legal eBilling?
Legal eBilling is the electronic exchange, validation, review, and management of legal invoice data.
Many clients require a structured invoice file rather than only a PDF.
The submission may include:
Client identifier
Matter identifier
Invoice number
Invoice date
Timekeeper name
Timekeeper classification
Work date
Hours
Rate
Task code
Activity code
Expense code
Narrative description
Taxes
Discounts
Credits
Invoice totals
LEDES is a common family of legal data-exchange standards used for these submissions.
Lawyer Responsibilities
Before approving a time entry, the lawyer should confirm:
The work occurred
The work date is correct
The duration is accurate
The correct client is selected
The correct matter is selected
The work is billable
The description is clear
Required task and activity codes are correct
The timekeeper is authorized
The work is within scope
The entry follows the client’s billing guidelines
Confidential information is handled appropriately
The billing team then uses approved time to create the prebill and invoice.
eBilling Workflow
1. Work Is Performed
The lawyer performs legal work through:
Documents
Email
Calls
Meetings
Research
Court activity
Matter systems
Client portals
2. Time Is Captured
The lawyer may use:
Manual entry
Timer
Calendar
Passive activity capture
AI-assisted timekeeping
3. The Time Entry Is Prepared
The entry normally includes:
Matter
Date
Duration
Billing status
Narrative
Task code
Activity code
4. Lawyer Review Occurs
The lawyer confirms the facts and billing treatment.
5. Prebill Review Occurs
The billing attorney and finance team review:
Scope
Staffing
Rates
Narratives
Codes
Expenses
Budgets
Client requirements
6. The Invoice Is Created
The billing system applies:
Rates
Fee arrangements
Discounts
Taxes
Currency
Expenses
Credits
7. A LEDES File Is Generated
The billing or eBilling system exports the required format.
See LEDES Billing Format Explained.
8. The Submission Is Validated
The system may check:
Required fields
Matter IDs
Timekeeper IDs
Rates
Codes
Dates
Totals
Taxes
Currency
Duplicate invoice numbers
9. The Invoice Is Submitted
The file and supporting documents are sent to the client’s portal.
10. Rejections Are Corrected
The firm identifies the source of the problem, corrects the data, regenerates the file where necessary, and resubmits it.
11. The Client Reviews the Invoice
The client may:
Approve
Adjust
Reject
Request clarification
Request supporting information
12. Payment Is Tracked
The firm records acceptance, approval, payment, and outstanding issues.
Time-Entry Narratives
A technically valid LEDES file can still be reduced because the narrative is weak.
Weak:
Research.
Clearer:
Researched governing standard for partial summary judgment and summarized authorities for draft motion.
Weak:
Client call.
Clearer:
Conferred with client regarding document collection status and production deadlines.
Weak:
Review documents.
Clearer:
Reviewed collected records for responsiveness and privilege before production.
A useful narrative explains:
What was done
What document, issue, event, or communication was involved
Why the work related to the matter
Avoid unnecessary disclosure of confidential or privileged information.
UTBMS Codes in eBilling
Many eBilling programs require standardized billing codes.
A task code describes the legal workstream.
An activity code describes how the work was performed.
Example:
Task: L320 Document Production
Activity: A104 Review/Analyze
Narrative:
Reviewed collected records for responsiveness and privilege before production.
The code and narrative should agree.
Related guides:
Outside Counsel Guidelines
Outside counsel guidelines may address:
Approved timekeepers
Rates
Billing increments
Block billing
Internal conferences
Research
Travel
Administrative work
Required codes
Budgets
Invoice deadlines
Supporting documentation
Confidentiality
AI use
A lawyer working for several clients may need to follow different rules for similar tasks.
The matter record should provide a concise, current summary.
Common eBilling Rejection Reasons
Matter and Client Problems
Invalid client ID
Invalid matter ID
Matter not active
Wrong client entity
Missing purchase order
Work outside authorized period
Timekeeper and Rate Problems
Timekeeper not approved
Missing classification
Rate not authorized
Effective date incorrect
Name or ID does not match portal records
Narrative and Coding Problems
Vague description
Block billing
Missing task code
Missing activity code
Invalid code
Code and narrative mismatch
Prohibited task
Administrative work
File and Invoice Problems
Missing field
Invalid date
Duplicate invoice
Unsupported format
Mathematical mismatch
Tax error
Currency error
Late submission
The LEDES Oversight Committee maintains standardized error codes for eBilling validation problems.
Rejection and Correction
When an invoice is rejected, identify the correct source of the problem.
Rejection | Correct source |
Wrong matter number | Matter master data |
Unapproved timekeeper | Client approval and timekeeper records |
Incorrect rate | Rate table |
Invalid task code | Time entry or code mapping |
Vague narrative | Time entry |
Missing receipt | Expense record |
Incorrect tax | Billing configuration |
Mathematical error | Invoice generation |
Invalid LEDES structure | Export or eBilling configuration |
Correcting only the exported file may allow the same problem to recur.
Lawyer eBilling Checklist
Before approving time, confirm:
Correct client
Correct matter
Accurate work date
Accurate duration
Permitted billing increment
Correct billing status
Clear narrative
Required task and activity codes
No prohibited block billing
No duplicate entry
No improper overlap
Timekeeper approved for the matter
Work within scope and budget
Confidential information handled carefully
Entry submitted on time
Feedback Loop
Rejection and adjustment data should return to the people creating source entries.
Useful categories include:
Vague narrative
Invalid code
Unauthorized timekeeper
Rate mismatch
Budget exception
Administrative task
Block billing
Late entry
Missing matter identifier
Duplicate charge
The firm can then improve:
Matter setup
Timekeeper training
Billing-code guidance
Automated checks
Rate records
Review workflows
Without a feedback loop, the same errors recur.
Confidentiality in eBilling
Invoice descriptions may be viewed by:
Client legal departments
Finance teams
Insurers
eBilling vendors
Invoice-review providers
Auditors
Courts in fee proceedings
The entry should provide enough context to explain the work without unnecessarily disclosing:
Legal advice
Litigation strategy
Settlement authority
Sensitive business information
Personal information
Investigative details
Frequently Asked Questions
What does a lawyer need to know about eBilling?
The lawyer should understand the client’s time-entry, narrative, billing-code, staffing, rate, budget, and confidentiality requirements.
Does the lawyer create the LEDES file?
Usually the billing or finance system creates the file. The lawyer reviews much of the source time-entry information.
Why are legal time entries rejected in eBilling?
Common reasons include vague narratives, invalid codes, unapproved timekeepers, rate mismatches, incorrect matter numbers, block billing, and missing fields.
Can the billing team fix every eBilling problem?
No. Billing staff may not know the legal context needed to correct the matter, duration, narrative, scope, or task code.
Is MIRA an eBilling system?
No. MIRA supports time capture and entry review before approved time moves into billing and eBilling systems.
