March 11, 2026 – Tax season would not be complete without access to the latest tax resources. This year, that includes the full text and related analysis of the One Big Beautiful Bill Act (OBBBA), its key provisions and changes to tax law.
The changes include making temporary deductions from the 2017 Tax Cuts and Jobs Act (TCJA) permanent, lowering tax rate brackets, changes to the child tax credit, providing tax relief on tips, auto loan interest, and a Social Security bonus.
Using AI for Tax Law Research
If you have access to one of the popular AI platforms like Claude, ChatGPT, OpenAI, or Gemini, or the closed platforms available on Lexis+ and Westlaw Precision, you can upload the text of the Act and ask questions or develop a tax strategy regarding a section of the law.
Genevieve Zook is the reference & instructional services librarian at the U.W. Law Library. She is currently chair of the Public Relations Committee and past president of the
Law Librarians Association of Wisconsin, a chapter of the American Association of Law Libraries.
A copy of the Act, its related documents, or analysis, are available through government agencies, Congress, legal publishers, and accounting organizations, which offer copies of primary law, regulations, reports, tax calculators, and analysis of the 2025 Act.
Many of the OBBBA-related documents and tax resources listed here are freely available online. However, for in-depth analysis of tax law, drafting tools and legal forms as well as closed system AI assistance programs, you may have to subscribe to a service.
When possible, I list subscription-based material that is available to the community at a law library terminal. If you visit the
University of Wisconsin Law Library or the
Wisconsin State Law Library, you will have access to a reference librarian as well. See the hours of operation of these libraries posted on their homepage for more information.
Free Tax Sites and Resources
Government Sites
Associations and Organizations
National associations impacted by the legislation provide resources. For example, the
American Medical Association (AMA) and the
American Hospital Association list key provisions to their membership and provide a fact sheet of the Act’s impact on Medicaid recipients on their websites.
Implications of the OBBBA for the States
For a report on state impact on the OBBBA,
see Multistate’s report.
If you are interested in the bill’s impact at the local level, the National Association of Counties (NACO) provides resources and a full analysis of the bill for their members.
Tax Foundation Research Publications – The
Tax Foundation provides tax resources for free including an
FAQ on the new law. The Tax Foundation also provides
a calculator for the One Big Beautiful Bill Act.
Subscription-based Legal Databases
State Bar of Wisconsin members get
access to Fastcase as a member benefit. You'll have broad access to cases, statutes and laws, congressional and administrative materials, executive orders, and more.
Bloomberg Law has a robust general tax collection, including the BNA tax portfolios. The database covers key provisions of the Act and offers a watch,
One Big Beautiful Bill Act Watch. The watch has webinars, latest news items on the OBBBA and a road map of the law.
Another large collection of tax material is available in
Lexis+. Lexis has primary law, analysis, treatises, tax journals, drafting tools and their AI platform, Protégé. The database provides a
chapter-by-chapter analysis of the OBBBA.
Proquest Legislative Insight has a collections of federal legislative histories for public laws. Here you will find full text of the law, related bills and amendments, committee reports, hearings, and reports on the P.L. 119-21. Proquest features a
search by citation menu where you can enter the public law number to quickly pull up all documents related to the Act.
Proquest Regulatory Insight, the sister to Legislative Insights, provides agency rules and regulations on public laws, including the latest rules covering the OBBBA. If you do not subscribe to the Proquest databases, you can access these databases at the University of Wisconsin Law Library terminals on the fifth floor of the law library.
Thomson Reuters (Westlaw) offers two products: Thomson Reuter’s Checkpoint Edge and Westlaw Precision.
Checkpoint Edge, a Thomson Reuters tax database, has primary and secondary tax resources, including the RIA tax treatise, the
Federal Tax Coordinator 2d. For the text of the Act or a summary of provisions see,
Checkpoint One Big Beautiful Bill Act and
One Big Beautiful Bill Act Enacted Into Law: Initial Observations on Business and International Tax Provisions. Checkpoint Edge is available at the University of Wisconsin Law Library terminals or by subscription.
Westlaw Overview of the OBBBA. From the treatise, McGaffey Legal Forms with Tax Analysis, provides analysis of business provisions of the Act. You will need a subscription to Westlaw Precision to review this resource. Westlaw Precision AI services is called CoCounsel. You can also use their classic tools, and Keycite the law to retrieve all documents related to the OBBBA. See
P.L. 119-21 keycite & related documents on Westlaw.
If you don’t have access to Westlaw Precision, the Thomson Reuter’s tax blog posts are freely available, including:
Wolters Kluwer’s VitalLaw – Another legal tax database that provides primary and secondary resources on the OBBBA is Wolters Kluwer's Vitallaw database. VitalLaw is available by subscription and is another legal database that can be accessed from the UW Law Library terminals. The law library does not subscribe to the full suite of tax material, VitalLaw’s Omnitax but does subscribe to the online version of the Standard Federal Tax Reports, a classic tax treatise that specializes in tax. It collects current federal and state case law, statutes and regulations as well as providing tax analysis. The material on the OBBBA can be viewed at,
One Big Beautiful Bill Act Resource Center. Wolters Kluwer also has
Tax briefings: One Big Beautiful Bill Act by CCH AnswerConnect Editorial.
State Bar of Wisconsin Resources
The State Bar of Wisconsin PINNACLE® offers an extensive collection of books and CLE on tax law, in addition to access to Fastcase for members. The best place to search is on WisBar's Marketplace, and
choose the practice area "Tax Law" as a category of search.
Tax Journals and Newsletter Services
TaxNotes by Tax Analysts. This service provides news, alerts, and trends in tax law. The material offered is for subscribers only, but the service does provide a text of the Act. To locate, search under the sidebar,
Legislative Timeline, on the right-hand side of the page. See
TaxNotes - One Big Beautiful Bill Act Single Resource for News, Analysis, Guidance, and Legislative Background.
General Tax Resources and State Resources
HeinOnline Resources
Law Journal Library – If you have a
Wisconsin State Law Library card you can search law review articles on the
HeinOnline database and obtain full-text law journal articles. The University of Wisconsin Law Library also provides access to HeinOnline at the law library terminals on the fifth floor.
For tax law researchers: If you are interested in the reform history of tax law, HeinOnline has a collection called
Taxation & Economic Reform in America Parts I & II. The collection includes the history of major tax legislation, legislative history of tax conventions, CRS reports, reform law legislative histories, and more. This collection is available on HeinOnline at UW Library Terminals. It does not include the OBBBA, but does provide the history of the Tax Cuts and Jobs Act, P.L. 115-97 as well as other major tax laws.
General State Resources
For federal and state tax law resources, the Wisconsin State Law Library
Tax Law Guide is a great starting point; and Carol Hassler’s 2022
InsideTrack article, “Legal Research 101: Finding Tax Law Resources” provides resources as well.
Subscribe to the
Wisconsin Department of Revenue Bulletin, published quarterly, to stay current on changes to state tax law and litigation.
The January issue is out now.
Many of the websites listed in this article are from an article by Susan B. Anders, “One Big Beautiful Bill Act Resources,”
CPA Journal, September/October 2025, p. 76. I did not include every resource she listed.
Need Help? Ask a Law Librarian
Got questions about researching public records? Don’t hesitate to reach out to a friendly law librarian – we’re experts at navigating the ins and outs of legal research and are happy to help! You can find law librarians ready to assist you at these Wisconsin libraries:
