Commercial Databases

BNA Online
We subscribe to the "BNA-ALL" plan, which provides us with access to most all of BNA's online publications.
HeinOnline Treaties and Agreements Library
(Hein Online Treaties and Agreements Library)
Access: IP Address
IBFD Tax News Service
Yale does not subscribe. Access 5,000+ tax and social security treaty documents including protocols, supplementary agreements, and exchanges of notes to these treaties; daily feed of tax treaty news.
IBFD Tax Treaty Case Law
Yale does not subscribe. This database provides a global overview of court decisions on the interpretation and application of treaties for the avoidance of double taxation.
Lexis and Westlaw on International Tax Materials
Lexis and Westlaw offer a comprehensive selection of primary and secondary international tax materials and some foreign tax materials. To access the foreign and international materials in both databases, selection your "TAX" tab, then select the "International" link. Westlaw and Lexis passwords are available to the Yale Law School community only.
NatLaw World
(National Law Center for Inter-American Free Trade)

Provides access to full text of laws and regulations from many Latin American countries, organized by country, and then by subject. Also offers access to many Latin American treaties and agreements, an English/Spanish list of legal terms and phrases, and links to free external sources of related information for Latin American countries and Canada. The entire database, or information on individual countries, may be searched by keywords.

Access: IP Address
RIA Checkpoint
Comprehensive databases of regional tax information from around the world. Checkpoint provides U.S. tax laws and analysis, along with both translated and primary source tax laws from major countries and authoritative commentary and guidance from leading international tax information providers such as IBFD and WTE.
Windstar Technologies, Inc.
Yale does not subscribe. Software geared for tax and immigration compliance for foreign nationals living, working, and going to school in the United States.
WorldTrade Executive
Yale does not subscribe. WTE provides business, legal (tax), and financial advice for operating in international markets.