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CoCounsel by Thomson Reuters costs $104 to $639 per user/month as of June 2026, with 4 plans available. Plan: Westlaw Advantage with CoCounsel Essentials at $639/user/month. Enterprise pricing is available on request. Pricing depends on your chosen tier, contract length, and negotiated discounts.

Use the interactive pricing calculator to estimate your exact cost based on team size and requirements.

  • Free tier: No free tier available

CoCounsel by Thomson Reuters offers 4 pricing tiers: CoCounsel Essentials, Westlaw Advantage with CoCounsel Essentials, Practical Law Dynamic Tool Set with CoCounsel Essentials, CoCounsel Legal. Paid plans include Westlaw Advantage with CoCounsel Essentials at $639/user/month. The Westlaw Advantage with CoCounsel Essentials plan is litigators who need westlaw primary-law research plus cocounsel ai.

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+70% above list price
Know Before You Buy — See CoCounsel by Thomson Reuters Plans

CoCounsel by Thomson Reuters true cost runs 70% above the listed $104-$639/user/month price as of June 2026. For a 25-person team, expect ~$264,690 in year-one costs vs the $155,700 base license. Key hidden costs: westlaw research is a separate cost driver: cocounsel essentials is the ai assistant alone. getting westlaw primary-law research with it requires the westlaw advantage with cocounsel essentials plan, which for a solo attorney runs $519.35–$639.20/user/month depending on term — materially more than the ai-only tier., jurisdiction scope inflates the price: the westlaw advantage and cocounsel legal plans price primary-law coverage by the circuits you select. 'all states & federal' is the most expensive option; a single-circuit practice pays less, while multi-jurisdiction practices pay more., term length lock-in: the advertised per-month rates assume multi-year commitments (12% off for 2 years, 18% off for 3 years). a 1-year term costs more per month, and the discounted solo rate ($519.35/mo) is only available if you commit for three years.. Verified from 1 sources by CostBench.

Hidden Costs Breakdown

1

Westlaw research is a separate cost driver: CoCounsel Essentials is the AI assistant alone. Getting Westlaw primary-law research with it requires the Westlaw Advantage with CoCounsel Essentials plan, which for a solo attorney runs $519.35–$639.20/user/month depending on term — materially more than the AI-only tier.

2

Jurisdiction scope inflates the price: the Westlaw Advantage and CoCounsel Legal plans price primary-law coverage by the circuits you select. 'All States & Federal' is the most expensive option; a single-circuit practice pays less, while multi-jurisdiction practices pay more.

3

Term length lock-in: the advertised per-month rates assume multi-year commitments (12% off for 2 years, 18% off for 3 years). A 1-year term costs more per month, and the discounted solo rate ($519.35/mo) is only available if you commit for three years.

4

Firms over 10 attorneys lose self-serve pricing: above 10 attorneys you cannot use the online configurator and must negotiate with a sales rep, where pricing is bundled with existing Westlaw/Practical Law contracts and is not publicly listed.

5

Practical Law is another line item: the Practical Law Dynamic Tool Set with CoCounsel Essentials plan adds Practical Law's content as a separate bundle. Firms wanting both Westlaw research and Practical Law guidance generally need CoCounsel Legal (complete access), the highest tier.

Example: True Cost for 25 Users

License (25 × $519 × 12) $155,700/yr
Implementation (one-time) +$15,000–$50,000
Premium Support (20%) +$31,140/yr
Training (25 × $500) +$12,500
Admin (part-time) +$15,000–$25,000/yr
Estimated Year 1 Total ~$264,690
That's roughly 1.7× the advertised license price.
Now You Know the Real Cost — See CoCounsel by Thomson Reuters Plans