By Kevin Harris, Senior Project Manager, Orion Law Management
Prebilling is one of the most important monthly tasks a law firm conducts. The prebill is the draft invoice circulated to attorneys for review, markup, and approval before the final bill goes to the client. Get the prebill process right, and cash flow, write-downs, and client relationships all benefit. Get it wrong, and invoices stall, fees leak, and partners spend more time hunting paper than practicing law. Orion’s inaugural Prebill Survey took a hard look at how firms actually run their prebill cycles today, and the results are difficult to ignore.
Why the Prebill Process Still Matters
Despite an industry-wide push toward efficiency and technology, the prebill remains a stubbornly manual exercise at most firms. It is the last quality-control step before an invoice is sent: timekeepers confirm narratives, partners adjust fees, and the billing department reconciles edits. Anything that slows the prebill slows the entire revenue cycle.
For midsize and large firms, the prebill is also where margin shows up. Edits made (or not made) at the prebill stage drive realization, write-downs, and the speed at which clients ultimately pay.
Survey Findings: Paper Still Runs the Prebill Cycle
The Orion Prebill Survey found that prebilling is still an exceedingly manual, paper-heavy, and antiquated process. Among the headline numbers:
- More than 71 percent of law firm accounting and billing departments were still circulating paper printouts and collecting handwritten annotations to capture lawyers’ input before finalizing invoices, while only about 12 percent were using electronic PDF prebills.
- 82 percent of respondents said their prebills are marked up with lawyers’ handwritten notes that are frequently illegible, forcing billing staff to chase clarifications.
- 84.4 percent of respondents reported the No. 1 cause of delay in prebill generation is a “lack of contemporaneous timekeeping habits,” meaning time is not entered as the work is done.
Together, these data points describe a prebill process that is paper-driven, error-prone, and dependent on timekeeper habits that are themselves a known weak spot.
The Real Cost of a Manual Prebill
A manual prebill is not just an inconvenience. Every illegible note, missing receipt, or late time entry pushes the invoice further out. Bills that should go in the first week of the month land in the third or fourth, and clients pay later than they otherwise would. Multiply that across hundreds of matters, and the prebill becomes a measurable drag on cash flow.
There is also a risk dimension. Handwritten edits make audit trails difficult, write-down limits hard to monitor, and partner accountability uneven. When a client questions an invoice, the firm’s ability to reconstruct the prebill review is only as good as the paper trail it kept.
Modernizing the Prebill with ePrebill Manager
This is the gap Orion built ePrebill Manager to close. ePrebill replaces paper prebill packets with an electronic workflow that mirrors the firm’s traditional prebill layout, so attorneys see something familiar but work entirely on screen. Edits are captured in red text or strike-throughs, the system records a detailed audit trail showing who edited each prebill and when, and write-downs and fee adjustments are tracked, with red-flag notifications when limits are crossed.
The benefits compound: faster prebill cycles, cleaner edits, fewer billing-department clarifications, better visibility into write-downs, and ultimately quicker invoice delivery. Firms that move from a paper prebill to an electronic prebill consistently report that bills go out sooner and cash comes in sooner.
What Firms Should Do Next with Their Prebill Process
If your firm is still moving paper prebills around the floor, the survey results are a clear signal. The first step is to map your current prebill process end-to-end, from time entry through partner review to final invoicing, and identify where paper, illegible notes, or stalled approvals are costing days. From there, an electronic prebill solution like Orion ePrebill Manager can compress that cycle without changing the way your partners actually review work. The prebill is too important, and too tied to firm performance, to leave on paper.