Casetext CoCounsel vs TaxGPT
A detailed comparison to help you choose between Casetext CoCounsel and TaxGPT.
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Verdict: TaxGPT wins
TaxGPT scores 4.0/5, edging out Casetext CoCounsel at 3.1/5. CPAs, enrolled agents and tax firms that want citation-backed research, drafting and agentic prep wired into the tax software they already run.
Casetext CoCounsel AI legal research and drafting | TaxGPT AI-powered tax guidance and document organization for individuals | |
|---|---|---|
| Rating | 3.1 (1 review) | 4.0 (1 review) |
| Pricing Model | paid | freemium |
| Starting Price | From $225/mo | Free tier available |
| Best For | US law firms of five or more attorneys already invested in Westlaw or Practical Law that want AI research and drafting inside that ecosystem. | CPAs, enrolled agents and tax firms that want citation-backed research, drafting and agentic prep wired into the tax software they already run. |
| Free Tier | ||
| API Access | ||
| Team Features | ||
| Open Source | ||
| Tags | team features | free tier |
| Visit Casetext CoCounsel → | Visit TaxGPT → |
Casetext CoCounsel
Pros
- + Citations in my checks resolved to real documents in the account library, with KeyCite treatment signals attached
- + Task-shaped outputs (research memos, obligation logs, timelines) rather than raw chat
- + Word drafting anchored to Practical Law precedent cut my NDA first-draft time to about 15 minutes
- + Document review reliably handles first-pass summarisation and clause extraction
- + Bundled Westlaw and Practical Law access removes the tab-switching that slows legal research
Cons
- - Standalone Casetext was retired on 2025-04-01; you cannot buy the old product at any price
- - No self-serve trial or published list price — everything routes through a configurator or sales call
- - Estimated $293/seat/month floor for the entry tier (Spellbook's configurator read, June 2026), roughly 30% above the old $225 standalone price
- - US law is the centre of gravity; most of the value evaporates for non-US practice
- - Missed a cross-reference in a lease amendment during my document review test — human review still required
TaxGPT
Pros
- + Research answers are citation-backed against a verified corpus of statutes, publications and case law, per the vendor FAQ
- + Cowork agents work inside Drake, ProConnect, UltraTax and CCH Axcess — output lands in the firm's existing software
- + Client Intelligence gives every question persistent context: entities, filing history, prior-year positions
- + Security package is specific: SOC 2 Type II, PII redaction, US-based AWS/Azure processing, audit trails, never trained on client data
- + Agent Andrew reviews 1040/1041/1065/1120/1120-S returns before sign-off, adding a documented second pass
Cons
- - No published pricing at all — demo required, plan scoped per firm, and third-party price claims ($17–$49/month) conflict with each other and the vendor
- - No third-party accuracy benchmark published; the 90% time-savings and 10x productivity figures are vendor claims
- - US and Canadian tax law only — no coverage for other jurisdictions
- - Not a consumer product despite the name; individual filers get nothing here
- - Agentic tax prep and Cowork are gated to Pro Plus and above, so the advertised end-to-end automation costs the top-tier price
Frequently Asked Questions
Which is better, Casetext CoCounsel or TaxGPT?▼
TaxGPT scores higher at 4.0/5 vs 3.1/5 for Casetext CoCounsel, making it the better-rated option in our comparison.
What is the difference between Casetext CoCounsel and TaxGPT?▼
Casetext CoCounsel: CoCounsel Legal is Thomson Reuters' AI assistant for lawyers, used for legal research, reviewing and summarising documents, and drafting. Formerly Casetext; sold per user. TaxGPT: TaxGPT is an AI assistant for tax professionals that researches tax questions with citations, drafts memos and analyses client documents.
Is Casetext CoCounsel or TaxGPT more affordable?▼
Casetext CoCounsel starts at €225/mo, TaxGPT starts at €0/mo. Check the comparison table above for current pricing.
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