AI Billing & Time Tracking for Law Firms

The Billing Leakage Problem

Law firms lose an estimated 10–30% of billable time to inadequate time capture. The math is sobering: an attorney billing at $400 per hour who fails to record just 30 minutes per day loses over $50,000 in annual revenue. Across a 10-attorney firm, that's half a million dollars walking out the door every year — not because the work wasn't done, but because it wasn't tracked.

The problem isn't laziness. It's friction. Attorneys switch between tasks dozens of times per day. Stopping to open a timekeeping app, find the right matter, describe the activity, and enter the duration breaks flow state and feels like overhead. So entries get batched, details get vague, and time gets lost.

How Lexi Tracks Time in Slack & Teams

Lexi captures billable time passively as you work, then gives you full control over what gets billed:

1. Activity monitoring. When you interact with Lexi on a matter — whether you're conducting research, drafting a document, reviewing an intake, or asking a question — Lexi automatically logs the start time, duration, matter, and activity type.
2. Smart descriptions. Instead of generic entries like “legal research,” Lexi generates specific, narrative descriptions: “Research re: applicable statute of limitations for breach of fiduciary duty claims in Delaware; identified three controlling authorities.”
3. Daily time summaries. At the end of each day (or at a time you configure), Lexi sends you a summary of all captured time entries for review. Approve, edit, or dismiss entries with a single click.
4. Manual entry support. For work done outside of Slack or Teams, tell Lexi about it in natural language — “I spent 45 minutes on the phone with the client in the Smith matter discussing settlement strategy” — and Lexi creates a properly formatted time entry.
5. Clio synchronization. All approved time entries sync directly to Clio Manage, appearing in the correct matter, with the correct billing code, ready for invoicing.

Invoice Drafting and Review

Beyond time capture, Lexi streamlines the entire billing cycle:

• Pre-bill generation. Lexi compiles all unbilled time and expenses for a matter into a draft pre-bill, applying your firm's billing guidelines, rate tables, and any client-specific billing requirements.
• LEDES compliance. For clients that require LEDES-format billing (common with insurance companies and corporate legal departments), Lexi automatically maps time entries to the correct UTBMS task and activity codes.
• Description optimization. Lexi reviews time entry descriptions for block billing issues, vague language, and other common reasons for bill reductions, suggesting improvements before the invoice goes out.
• Trust accounting integration. For matters funded by retainer, Lexi tracks trust balances, alerts you when a retainer is running low, and applies payments from trust accounts according to your jurisdiction's IOLTA rules.

Revenue Impact

Firms using Lexi for time tracking consistently report measurable improvements in billing metrics:

• 15–25% increase in captured billable hours
• 40% reduction in time spent on monthly billing
• Fewer bill reductions due to more detailed, specific time descriptions
• Faster collections due to timelier invoice delivery
• Improved realization rates from better time narratives

Integrations

Lexi's billing engine integrates deeply with Clio Manage for matter data, time entries, and invoicing, as well as QuickBooks and Xero for accounting and trust reconciliation. Time captured during legal research, document drafting, and client intake flows automatically into your billing records — no double entry, no missed activities.

Built for Ethical Compliance

Accurate timekeeping isn't just a business concern — it's an ethical obligation. ABA Model Rule 1.5 requires that fees be reasonable, and detailed contemporaneous time records are the primary evidence of reasonableness. Lexi helps your firm meet this standard by capturing time as it occurs rather than relying on after-the-fact reconstruction.

All billing data is handled with the same enterprise-grade security that protects all information in Lexi. Financial data is encrypted, access is permission-controlled, and complete audit logs are maintained for every billing action.

Start Capturing Lost Revenue

Book a free demo to see how Lexi tracks time and generates invoices for your practice. We'll show you a side-by-side comparison of manual timekeeping versus Lexi's automated capture, using realistic scenarios from your practice area. Most firms recover the cost of Lexi within the first month through improved time capture alone.