Billable legal assistant time is substantive case work performed under attorney supervision: drafting, research, document review, discovery organization, and case-related communication. Clerical work such as scheduling, copying, and filing is firm overhead and stays off the invoice. Your engagement letter and local billing rules decide the final line.
Both require attorney supervision. Only the left column belongs on a client bill.
Billable case work versus firm overhead. Both require attorney supervision. Only one belongs on a client bill.
Routine clerical work, such as scheduling, scanning, copying, general filing, invoicing, and internal administration, is usually law firm overhead. The final decision depends on the engagement agreement, client billing guidelines, court rules, and the professional-conduct requirements in the firm’s jurisdiction.
Firms often lose legitimate support-staff revenue because no one has clearly defined what counts. Potentially billable work may be written off when an entry is vague, late, duplicated, or improperly categorized.
The solution is not to force every activity onto an invoice. It is to distinguish substantive legal support from administrative work and record both correctly.
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What Does Billable Time Mean for a Legal Assistant?
Billable legal assistant time is work that directly advances a specific client matter and is appropriate to delegate to a trained nonlawyer under attorney supervision.
The job title alone does not make a task billable. The nature of the work does.
The ABA defines a paralegal as someone qualified through education, training, or experience who performs specifically delegated substantive legal work for which a lawyer is responsible. It also states that substantive paralegal work may be billed separately, while clerical work generally should not be treated the same way.
A task is more likely to qualify as billable when it:
- Relates to a specific client matter
- Requires legal knowledge, case familiarity, or specialized training
- Advances the representation
- Is reasonable and necessary
- Is completed under attorney supervision
- Is permitted by the fee agreement and client billing guidelines
- Is recorded accurately and described clearly
ABA Model Rule 1.5 requires fees to be reasonable and calls for the basis or rate of the fee to be communicated to the client. State rules and client requirements may impose additional restrictions.
Billable, Non-Billable, and Unbillable Time
Billable Time
Billable time is substantive, matter-specific work that the firm can reasonably charge to a client.
Examples may include reviewing records, drafting discovery responses, preparing a chronology, or organizing evidence for a hearing.
Non-Billable Time
Non-billable time is necessary work that keeps the firm operating but is not ordinarily passed through to a client.
Examples include scheduling, staff training, preparing invoices, and general administration.
This work is not unproductive. It is simply overhead.
Unbillable Time
Unbillable time is work that might otherwise have been billable but cannot be invoiced because of vague descriptions, late entries, block billing, duplicate work, incorrect matter codes, or client restrictions.
This category is often the easiest to improve because the problem is usually the firm’s timekeeping or delegation process.
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Which Legal Assistant Tasks May Be Billable?
Drafting and Document Preparation
A legal assistant may prepare initial drafts using attorney instructions, approved templates, and information in the client file.
Examples include discovery responses, demand letters, case summaries, client correspondence, and pleadings for attorney review.
The supervising attorney must retain responsibility for legal decisions and approve the final work product.
Document Review and Analysis
Review may be billable when the assistant applies case knowledge or attorney-provided criteria.
Examples include summarizing records, reviewing productions, preparing privilege-log information, comparing records with discovery responses, and identifying missing documents.
Scanning, uploading, renaming, or copying the same records is usually administrative.
Case and Discovery Management
Matter-specific organization may be substantive when it requires analysis rather than routine file maintenance.
Examples include building chronologies, organizing exhibits, preparing deposition materials, and tracking discovery obligations.
Directed Research and Investigation
A legal assistant may conduct legal or factual research under attorney direction, such as locating court rules, public records, prior filings, authorities, or procedural requirements.
The assistant may organize findings but should not independently give legal advice or make decisions reserved for licensed counsel.
Substantive Case Communication
Communication may be billable when it directly advances the matter, such as requesting missing evidence, gathering facts, coordinating with an expert, or drafting substantive correspondence for attorney review.
Routine reminders, call transfers, and appointment scheduling are generally administrative. The ABA has noted that merely relaying an answer already analyzed by the lawyer can be difficult to characterize as independently billable substantive work.
Billable vs. Non-Billable Legal Assistant Tasks
| Task | Billable? | Why it lands where it does |
|---|---|---|
| Drafting pleadings, motions, and correspondence | Billable | Substantive work product that advances the matter, reviewed and signed off by the supervising attorney. |
| Legal and factual research, cite checking | Billable | Directly supports the legal strategy in that specific case. |
| Document review and privilege logging | Billable | Case-specific analysis, even when the volume is high. |
| Discovery organization, exhibit and deposition prep | Billable | Work a client would otherwise pay an associate to do. |
| Medical record and billing record summaries | Billable | Produces a usable case document, not just a stack of paper. |
| Case-related client and third-party communication | Billable | Status updates, records requests, and follow-up tied to the matter. |
| Court filing preparation and e-filing | Mixed | Preparing and reviewing the filing is billable. Uploading and clicking submit is usually clerical. |
| Calendaring, scheduling, and reminders | Not billable | Firm administration, even when the deadline belongs to a case. |
| Copying, scanning, mailing, file organization | Not billable | Classic overhead. Courts and clients reject these at professional rates. |
| Client intake before engagement | Not billable | No matter exists yet, so there is nothing to bill against. |
| Timekeeping, invoicing, and collections | Not billable | The cost of running the firm, not a service to the client. |
| Training, onboarding, and software learning | Not billable | Investment in the team, absorbed by the firm. |
| Fixing the firm's own errors or duplicate work | Not billable | Clients should not pay twice for the same task. |
Scroll sideways on smaller screens. Fee agreements, court rules, and client billing guidelines override any general rule.
This is a general framework. The fee agreement, jurisdictional rules, and client billing guidelines control the final classification.
Gray Areas That Require a Firm Policy
Some activities may be billable in one context and overhead in another.
Some activities may be billable in one context and overhead in another.
E-filing
Uploading an approved document may be clerical. Reviewing filing requirements, preparing exhibits, or correcting a rejection may involve specialized work.
Internal conferences
Active participation in a necessary case discussion may be billable. Routine supervision or duplicate attendance is more likely to be challenged.
File organization
Maintaining folders is administrative. Organizing exhibits by issue, witness, date, or evidentiary significance may require substantive analysis.
Client calls
Gathering facts or missing documents may be billable. Scheduling the call or providing a generic update usually is not.
The firm should document how these mixed activities are handled instead of leaving each timekeeper to decide independently.
How to Write a Defensible Time Entry
Many write-downs happen because the description does not show what was accomplished.
A strong entry identifies the task, the subject or document, and the purpose.
Case work, 1.5 hours
Drafted responses to Requests for Production Nos. 1 to 14 using client records and attorney-provided objections for attorney review, 1.5 hours
Reviewed file, 2.0 hours
Reviewed 212 pages of orthopedic treatment records and prepared treatment chronology for mediation brief, 2.0 hours
Discovery, 3.0 hours
Organized and Bates-labeled plaintiff's document production and prepared privilege-log information for nine withheld documents, 3.0 hours
The entry should explain the value without exposing privileged strategy.
RemoteLegalStaff places virtual legal assistants who work inside your practice management system, log time contemporaneously, and stay within the scope your attorneys set.
Book a Free ConsultationFive Mistakes That Turn Billable Work Into Write-Offs
1. Clerical creep
Substantive and administrative activities are combined, giving the reviewer a reason to reduce the entire entry.
For example, a single entry may combine record review, document scanning, client scheduling, and chronology preparation. Separating the substantive work from the administrative work makes the charge easier to evaluate.
2. Block billing
Several unrelated tasks appear under one total, making it difficult to verify the time spent on each activity.
Instead of combining document review, client communication, discovery preparation, and an internal meeting under one entry, record each activity separately when practical.
3. Reconstructed time
Entries written days later are more likely to be incomplete, estimated, or vague.
Legal assistants should record their time as close as possible to when the work was performed.
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4. Duplicate effort
Two employees review the same materials or attend the same meeting without a clear need.
Clear task ownership and matter-management procedures can reduce unnecessary duplication.
5. Silent scope creep
The assistant completes useful work that is not covered by the engagement or allowed by the client’s guidelines.
Even valuable work may need to be written off when the client did not authorize it or the agreement does not permit the charge.
Recent ABA billing guidance likewise warns that bundling unrelated tasks can make entries harder to verify and more likely to be adjusted.
Is Virtual Legal Assistant Time Billable?
A virtual legal assistant’s location does not determine whether the time is billable.
The same test applies: Was the work substantive, matter-specific, necessary, supervised, accurately recorded, and permitted by the client’s agreement?
Before billing virtual support time, confirm that:
- A named attorney supervises the work
- The assistant has a defined scope
- Substantive work is reviewed
- Time is entered in the firm’s approved system
- Confidentiality and access controls are in place
- The fee agreement and client guidelines allow the charge
- The assistant is not performing work reserved for a lawyer
ABA Model Rule 5.3 requires lawyers with managerial or direct supervisory authority to take reasonable steps to ensure that nonlawyer work is compatible with the lawyer’s professional obligations. Its comments apply that responsibility to nonlawyers working both inside and outside the firm.
Remote support should therefore follow the same supervision, confidentiality, quality-control, and billing standards as work performed by someone inside the office.
How to Create a Legal Assistant Billing Policy
A useful policy can fit on one page.
Start by listing the recurring tasks your assistants perform and classify each one as:
- Billable
- Non-billable
- Mixed or attorney approval required
Then define:
- Which timekeeping system to use
- When entries are due
- What each narrative must include
- Whether block billing is prohibited
- Who reviews entries
- How client-specific restrictions are flagged
- How adjusted time is handled
Provide approved examples for common tasks. Review write-downs monthly and trace repeated reductions back to the task, narrative, rate, or delegation process.
Legal assistants should also track non-billable work. Those hours reveal administrative workload and the overhead supporting invoiced work.
Tracking both categories helps firms determine whether work is being assigned to the right person and whether their staffing structure matches the actual demands of the caseload.
A Five-Question Billability Test
A useful policy can fit on one page.
Start by listing the recurring tasks your assistants perform and classify each one as:
- Billable
- Non-billable
- Mixed or attorney approval required
Then define:
- Which timekeeping system to use
- When entries are due
- What each narrative must include
- Whether block billing is prohibited
- Who reviews entries
- How client-specific restrictions are flagged
- How adjusted time is handled
Provide approved examples for common tasks. Review write-downs monthly and trace repeated reductions back to the task, narrative, rate, or delegation process.
Legal assistants should also track non-billable work. Those hours reveal administrative workload and the overhead supporting invoiced work.
Tracking both categories helps firms determine whether work is being assigned to the right person and whether their staffing structure matches the actual demands of the caseload.
Paying for hours no client will ever cover? Book a Free Consultation →
The Takeaway
Billable time for legal assistants is generally substantive, case-specific, supervised, reasonably charged, and clearly described.
The goal is not to turn every minute into a client charge. It is to assign work to the right professional, track it accurately, and invoice only the time the firm can defend.
Firms that define this line in writing can capture more legitimate billable time, reduce avoidable write-offs, improve delegation, and give clients a clearer explanation of the value they received.
Build a Legal Support Team Around the Work Your Firm Needs
RemoteLegalStaff helps law firms build remote support teams around clearly defined responsibilities and workflows.
Whether your firm needs administrative coverage, substantive case support, or a combination of both, the right staffing structure starts with understanding which tasks should be delegated and how that work should be supervised and recorded.
Book a consultation with RemoteLegalStaff to discuss the legal support roles that fit your firm’s caseload and operations.
Walk us through your practice area and current support setup. We will show you where a virtual legal assistant fits and how firms structure the billing.
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