CoCounsel Tax

Most AI research tools pull from publicly available sources and leave the practitioner to verify against primary authority. CoCounsel Tax works differently: it queries the full Thomson Reuters Checkpoint library directly, covering the Internal Revenue Code, Treasury regulations, IRS rulings and notices, federal case law, and expert-written commentary, and serves small and mid-sized accounting firms through a conversational interface. Each answer is sourced and links back to the primary authority so the reasoning is traceable and defensible.

Typical research tasks include checking the current rules on a deduction, summarizing recent IRS guidance, or comparing treatment across states. The assistant handles follow-up questions in context, so a multi-step research path does not require restarting from scratch. Drafting support covers memo outlines and client-communication summaries built from the sources it retrieves.

CoCounsel Tax is sold in three plans: Tax Essentials for everyday tax work, which runs standalone without a Checkpoint subscription; Tax Research, which includes Checkpoint Edge access; and Audit & Accounting for assurance teams. It is most useful for small to mid-sized accounting firms that rely on Checkpoint for primary source research and want to reduce the time spent reading through dense regulatory text.

For firms already in the Thomson Reuters stack, CoCounsel Tax sits naturally alongside existing Checkpoint workflows. Cited answers link directly to the source pages your team already knows. The Essentials plan runs without a Checkpoint subscription, though it caps citation-backed answers at 20 per user each week and leaves out deep research tools such as eForms and state comparison charts.

The closest alternative is Blue J, which covers similar jurisdictions but operates independently with its own source library. The choice usually comes down to whether your firm is committed to the Thomson Reuters ecosystem or prefers a standalone tool.

Thomson Reuters publishes per-user pricing for the Tax Essentials plan on its store; the Tax Research and Audit & Accounting plans are quoted by sales, with costs depending on the number of users and the content each plan includes.