How Much Revenue Is Hiding Between a Law Firm’s Timekeeping, Billing, and Bank Account?
A law firm can perform valuable work without immediately receiving the cash associated with that work. Understanding why requires following the path from an attorney’s work to the firm’s bank account.
A typical work-to-cash process passes through several stages. After lawyers perform legal work and record their time, billing staff compile the entries and generate prebills for review. Once the prebills are approved, final invoices are issued to clients and payments are collected (Harris, 2019). These stages may be managed across separate systems, spreadsheets, inboxes, or manual processes. The Illinois State Bar Association (2026) identifies timekeeping, billing, and accounting as connected parts of a law firm’s financial “back office” and warns that poor integration can lead to duplicate entry, reporting difficulties, errors, and inefficiency.
Three common measurements can help a firm understand how successfully work moves through this process: utilization, realization, and collection. Utilization measures how much of an eight-hour working day is recorded as billable work (Clio, 2025a). Realization measures how much recorded billable work is invoiced to clients, while collection measures how much invoiced work is eventually paid (Clio, 2025a). Clio’s 2025 data reports an average utilization rate of 38%, an average realization rate of 88%, and an average collection rate of 93% (Clio, 2025b). These figures are based on aggregated and anonymized data from tens of thousands of U.S. legal professionals using paid Clio subscriptions. Therefore, they should be treated as benchmarks for the legal professionals represented in Clio’s data rather than as universal measurements for every law firm (Clio, 2025b).
When applied sequentially to an eight-hour day, these benchmarks produce approximately 3.0 hours of recorded billable work, 2.7 hours of invoiced work, and 2.5 hours of collected-equivalent work (Clio, 2025b). The calculation uses Clio’s (2025b) benchmarks:
- 8 hours × 38% utilization = 3.04 recorded billable hours
- 04 hours × 88% realization = 2.68 invoiced hours
- 68 hours × 93% collection = 2.49 collected-equivalent hours
This calculation does not always mean that the remainder of the day is automatically wasted or recoverable. Utilization measures only the portion of the working day recorded as billable; it does not classify every remaining hour as unproductive (Clio, 2025a). The more useful question is how much valid client work failed to move through the process and where it stopped.
The difference between work performed and cash collected does not always represent permanently lost revenue. Some revenue may remain unbilled or unpaid for longer than necessary. Clio (2025a) uses the term “lockup” to describe this delay. Realization lockup measures completed work that has not yet been billed, while collection lockup measures invoices that have been sent but not yet paid (Clio, 2025a). Together, these measures form total lockup (Clio, 2025a). Clio also reports a median total lockup of 93 days for 2025. This means that the median firm represented in its dataset had an amount equivalent to approximately 93 days of annual revenue tied up in unbilled work or unpaid invoices; it does not mean that the revenue was permanently lost (Clio, 2025b).
The benchmarks identify where revenue narrows or becomes delayed, but they do not explain why this occurs. Finding the cause could require a firm to connect information across its timekeeping, billing, payment, and accounting records. The Illinois State Bar Association (2026) warns that when timekeeping, billing, and accounting applications do not integrate, staff may be required to enter the same information into more than one system. Duplicate entries can increase inefficiency, create errors, and make it more difficult for the firm to produce the financial reports it needs. For Louisiana firms, improving this process is not only a matter of operational efficiency. The Louisiana State Bar Association (2026) recommends that firms implement simple and efficient timekeeping and billing systems, track time in all legal matters, and bill clients as frequently and promptly as practical. Together, these sources point to a practical management question: Can the firm reliably follow work from the moment it is performed through billing, payment, and accounting? If it cannot, the next step could be to determine whether the problem involves revenue leakage, revenue delay, or a lack of visibility between systems.
The value of legal work could be amplified when that work moves efficiently from timekeeping through billing, payment, and accounting. By monitoring utilization, realization, collection, and lockup alongside consistent financial and matter records, law firm leaders can better determine whether revenue is being lost, delayed, or obscured by disconnected systems.
Aldron Analytics & Consulting can support this process by cleaning operational data, connecting approved systems, and transforming fragmented records into actionable financial reports. These services can help law firms develop a clearer view of their work-to-cash cycle, reduce administrative friction, improve cash-flow visibility, and make more informed decisions about performance and growth.
For law firms, the opportunity may not begin with generating more work. Instead, it may begin with gaining greater control over the value already moving through the firm.
References
Clio. (2025a). Law firm key performance indicators: Insights from the Legal Trends Report. Retrieved July 16, 2026, from https://www.clio.com/resources/legal-trends/benchmarks/
Clio. (2025b). 2025 Legal Trends Report. https://www.clio.com/wp-content/uploads/2025/09/2025-Legal-Trends-Report.pdf
Harris, K. (2019, March). Transform billing processes to improve your firm’s bottom line. Legal Management. https://www.alanet.org/legal-management/2019/march/departments/transform-billing-processes-improve-your-firm%27s-bottom-line
Illinois State Bar Association. (2026). Timekeeping and billing systems. https://www.isba.org/sites/default/files/practicehq/whitepapers/WP%20-%20Timekeeping%20and%20Billing%20Systems.pdf
Louisiana State Bar Association. (2026). Section 3—Fees, billing, and trust accounts. Retrieved July 20, 2026, from https://www.lsba.org/PracticeAidGuide/PAG3.aspx
