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Legal research

Westlaw Precision support

Discover the power of Westlaw Precision

Learn how to leverage the new capabilities and best-in-class content of Westlaw Precision to research more efficiently and with greater confidence.

Research support

1-800-REF-ATTY (1-800-733-2889)

Technical support

1-800-WESTLAW (1-800-937-8529)

Account support


Westlaw Precision frequently asked questions

  • You will receive a registration key via email that can be used to activate your account. From the email, click the Activate Now link and follow the subsequent steps.

  • OnePass is an online account that allows you to log in to multiple Thomson Reuters® products with one username and password. Once you have created your OnePass account, you can register any products to which you subscribe, including Westlaw Precision.

    Learn more about OnePass

  • To sign on to Westlaw Precision, go to www.westlaw.com and enter your OnePass username and password.

  • A Client ID is required to sign on to Westlaw Precision and is used to identify your Westlaw Precision sessions. You may find it useful to enter a Client ID that relates to your research.

    You can change the Client ID anytime during a research session. Click the current client ID at the top of any page, then type a new client ID or select a recently used one from the options displayed in the drop down. Then click Change.

  • To access a comprehensive list of content included in your organization's Westlaw Precision subscription, select Subscription under the Profile icon in the top right corner of the Westlaw Precision homepage. Or, contact customer service at 1-800-328-4880, open from 7 a.m. – 7 p.m. (CT).

  • Contact your Westlaw representative or client manager, or contact customer service at 1-800-328-4880.

  • Use the My Account portal to review West Account balances and invoices, make payments, check order status, and request a reshipment or return. You can also manage users' access to Westlaw, Business Law Solutions, Thomson Reuters CLEAR, Practical Law and more.

  • If there is additional content you are interested in adding to your Westlaw Precision plan, contact your sales rep or client manager.

  • Yes. Sign into the award-winning Westlaw app for iOS using your OnePass username and password, and you can access most Westlaw Precision features right from your iPhone or iPad – anytime, anywhere.

    Download Westlaw for iOS

  • Supported operating systems

    • Windows 8.1, and Windows 10
    • Mac® OS 10.15 or later

    Internet browser

    • Chrome current version
    • Safari current version
    • Mozilla Firefox current version or Extended Support Release version
    • Microsoft Edge current version

    Mobile apps

    • iPhone (iOS 15.4 or later, iPhone 6s or later)
    • iPad (iOS 15.4 or later, iPad 5th generation or later)
    • Android (10 or higher, devices maintaining Android version 10 or higher)

    Other requirements

    • 1024x768 or higher screen resolution recommended
    • Adobe Acrobat Reader® 9.0 or later (some print functionality is lost with older versions)