RTG Bills suits sole practitioners and small to medium-sized law firms that need timekeeping, expense tracking, and billing.
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Best Legal Billing Software 2026
Legal billing software helps firms manage billing models, legal time tracking, expenses, and client payments. Compare those capabilities with trust accounting and client portal availability to see how each option aligns with your firm’s billing and client-account workflows. Client payments and expense tracking offer further points of comparison, while free-plan availability and paid-from pricing can help you assess cost. CaseFox, Bill4Time, and CosmoLex are among the products covered, along with Orion ePay, Bilr, BQE CORE, LeanLaw, and RTG Bills. Weigh the listed features against the billing tasks your firm handles and the ways clients need to review or pay their bills.
Sage Timeslips
AndroidiPhone & iPadWeb+3TimeSolv
AndroidiPhone & iPadWeb+4Bill4Time
Bill4Time suits professionals or teams who need to track projects and billable time across desktop and mobile platforms.
AndroidiPhone & iPadWeb+2Bilr
Bilr is aimed at solo attorneys, boutique or corporate firms, and multi-office legal teams, as well as accounting teams and consultants.
AndroidiPhone & iPadWeb+1CaseFox suits legal professionals and related consultants who need case, time, billing, and trust-account tools.
LeanLaw is designed for modern, mid-sized law firms seeking connected financial workflows.
CosmoLex is aimed at small and mid-sized law firms that want matter management, accounting, billing, and related practice tools in one application.
TimeNet Law is aimed at solo, small, and medium law firms, including multi-attorney offices.
LegalTime is aimed at Dutch law firms, including firms with 3–20 fee earners.
Orion ePay suits law firms already using Orion software that want to collect client payments and trust deposits.
CORE suits architecture and engineering firms that need project, time, billing, and business functions in one platform.
LawPay suits U.S. legal professionals who need client payments, trust-account separation, billing tools, and legal-software integrations.
Expert Sierra is for law firms seeking connected practice, financial, billing, time, and expense management.
It suits law firms and legal professionals seeking matter management, billing, and legal accounting in one system.
It suits corporate legal departments managing European outside counsel spend, cross-border billing, and matter information.
CaseConnect suits small, boutique and growing UK law firms, including high-street and specialist practices.
It suits organizations that need a repeatable process for issuing, monitoring, and documenting legal holds.