Casetext (CoCounsel)
AI legal research assistant with accounting applications.
About Casetext (CoCounsel)
CoCounsel is a legal research assistant built by Casetext and trained on case law, statutes, and regulatory text. Tax attorneys and CPAs handling complex compliance work use it to research IRC provisions, trace regulatory history, and review contracts or agreements for tax exposure. A typical session might involve querying a specific code section across conflicting circuit court interpretations or pulling together a summary of recent IRS guidance on a narrow issue. It fits firms where a tax attorney and CPA work together on the same client matter, or solo tax practitioners who bill enough complex advisory work to justify legal-grade research tooling. A 10-person general accounting practice doing mostly compilations and 1040s will not recoup the cost. The weak points are real: CoCounsel is a legal tool that tax practitioners use, not accounting software with legal features bolted on. It does not connect to QuickBooks, Xero, or any general ledger. Workflow stops at the research memo stage — output goes into your document editor manually. Thomson Reuters Checkpoint and Bloomberg Tax cover similar ground for tax-specific research at comparable or higher cost, and both have deeper integration into existing tax prep workflows.
Best for
Tax attorneys and CPAs needing AI-powered legal and tax research capabilities
Key Features
- AI-powered tax law research and analysis
- Automated document review for compliance
- Regulatory change tracking and alerts
- Legal precedent analysis for tax cases
Pros & Cons
Pros
- Searches full-text case law, IRS rulings, and regulatory history in a single query rather than requiring separate database lookups
- Handles multi-part tax research questions with cited summaries, reducing manual case-pulling across Westlaw or Lexis
- Document review function flags tax-relevant clauses in contracts and partnership agreements against current IRC provisions
- Regulatory change tracking sends alerts when specific code sections or agency rules are updated
- Output quality on complex federal tax questions is strong enough to use as a first-draft research memo rather than a starting point for manual research
- Useful for CPAs who need to brief a tax attorney quickly — produces structured legal summaries without requiring Westlaw access
Cons
- No free trial as of current pricing — evaluation requires a paid commitment before you know if the output quality fits your practice
- Pricing is quote-based and skews toward law firm budgets, not small CPA firm budgets
- Zero integration with accounting platforms — no QuickBooks, Xero, or tax prep software connections, so research output is always a manual handoff
- Thomson Reuters Checkpoint and Bloomberg Tax have deeper state and local tax coverage and sit inside workflows tax practitioners already use
- Not useful for bookkeeping, audit, or any compliance work below the level of complex tax research — most accounting firm staff will never touch it
- AI output on niche state tax questions can miss recent administrative rulings that are not well-indexed in the training corpus
Ledger Brief Take
Built specifically for legal professionals, this positions itself as a legal research tool that happens to serve tax practitioners rather than accounting software with legal features. The AI research capabilities are legitimately sophisticated for complex tax law queries, but most day-to-day accounting work won't justify the legal-grade tooling and associated cost structure.
Frequently Asked Questions
Common questions accountants ask about Casetext (CoCounsel).
What does CoCounsel cost?
Pricing is quote-based and not published on the website. It is structured for law firms and larger tax advisory practices. Expect pricing at or above Bloomberg Tax or Westlaw tiers. No free tier or trial period is currently available, so you are committing before you can test output quality on your actual research questions.
Does CoCounsel integrate with QuickBooks, Xero, or tax prep software?
No. CoCounsel has no integrations with accounting platforms, tax prep software, or document management tools common in CPA firms. Research output is copied out manually. If your firm needs research results to flow into a connected workflow, this is a significant gap.
How does CoCounsel compare to Bloomberg Tax or Thomson Reuters Checkpoint?
Bloomberg Tax and Checkpoint have broader state and local tax coverage, integrate into existing tax prep workflows, and are built specifically for tax practitioners. CoCounsel's AI handles complex multi-part queries well but sits inside a legal research frame. For pure tax research volume, Checkpoint or Bloomberg Tax are the more established choices.
Which firm types actually get value from CoCounsel?
Tax attorneys, dually-licensed attorney-CPAs, and CPA firms that handle complex federal tax controversy or transactional work with significant research load. General accounting practices doing tax compliance, bookkeeping, or audit work at standard small-business complexity will not justify the cost.
Is client data secure when using CoCounsel for document review?
Casetext publishes enterprise data security documentation including SOC 2 compliance. Documents uploaded for review are not used to train the model. For client-specific engagements, review their data processing agreement before uploading sensitive client materials, as you would with any third-party AI tool.
Can CoCounsel replace a legal research subscription like Westlaw for a CPA firm?
Only if your firm's legal research needs are narrow and federal-focused. CoCounsel covers case law and regulatory text well for federal tax issues. It does not replace Westlaw for broad legal research, and it does not cover state tax administrative guidance as thoroughly as dedicated tax research platforms.