PCLaw is a legacy desktop application being sunset by Thomson Reuters. If you're planning your PCLaw exit, Atticus offers everything PCLaw does — trust accounting, billing, matter management — plus AI, a modern cloud interface, and flat pricing for the whole firm.
Start Free TrialPCLaw is a Canadian legal practice management and accounting application developed by LexisNexis and later acquired by Thomson Reuters. For decades, it was the dominant accounting platform for small to mid-size Canadian law firms, offering trust accounting, billing, time tracking, and general ledger in a desktop application designed for Canadian law society compliance.
Thomson Reuters has been steering PCLaw users toward its HighQ and 3E platforms (targeted at large firms) or encouraging migration to cloud alternatives. PCLaw's desktop codebase has limited ongoing development, no AI capabilities, and the cloud version runs on US infrastructure — creating data residency concerns for Ontario firms subject to PIPEDA.
For Ontario solo and small firms, Atticus is the natural PCLaw replacement: modern cloud architecture, LSO By-Law 9 trust accounting, AI document analysis and assistant, flat pricing, and active product development — without migrating to an enterprise platform sized for 100+ lawyers.
| Feature | PCLaw | Atticus |
|---|---|---|
| LSO By-Law 9 Trust Accounting | Yes — legacy Canadian trust accounting | Native — receipt, disbursement, reconciliation |
| Deployment | Legacy desktop + limited cloud; sunset by Thomson Reuters | Modern cloud-native, browser-based, always current |
| AI Document Analysis | No | Every document summarized and entity-extracted |
| AI Practice Assistant | No | Atticus Chat with 7 action tools |
| Matter Management | Basic file/matter management | Full matter records with documents and AI search |
| Canadian Data Residency | Desktop: local; cloud version: Thomson Reuters US infrastructure | Yes — Canadian data residency, PIPEDA compliant |
| Product Roadmap | Being sunsetted — Thomson Reuters steering firms to alternatives | Active development — new AI and practice features monthly |
| Pricing | $100–$180+ CAD/user/month or perpetual license | $149 CAD/month — per lawyer |
| Target Market | Canadian law firms — legacy desktop | Ontario solo and small law firms exclusively |
Thomson Reuters has stopped active investment in PCLaw. If you're on PCLaw, migrating is a question of when, not if. Atticus gives you a modern cloud platform with a committed Ontario practice management roadmap.
Atticus AI processes every document, extracts key information, and answers questions about your practice from chat. PCLaw has no AI capabilities and no roadmap for them.
PCLaw users know trust accounting inside and out. Atticus mirrors the same core flow — receipts, disbursements, reconciliation — in a modern interface with LSO By-Law 9 compliance built in.
PCLaw charges per user — costs that scale steeply as you add staff, articling students, or associates. Atticus is $149 CAD/month per lawyer, always.
PCLaw desktop stores data locally; the cloud version runs on US Thomson Reuters infrastructure. Atticus is cloud-native with Canadian data centres and PIPEDA compliance — essential for Ontario firm data security.
Legacy desktop legal accounting
Modern Ontario practice management
Per lawyer per month
Migrate to a modern platform before Thomson Reuters forces the decision. Atticus brings trust accounting, AI, and flat pricing to Ontario small firms — purpose-built for the transition.
Start Free TrialNo credit card required · $149 CAD/month after trial