The directories, which are released annually, are key resources for helping tax executives locate specialist advice. Each edition rates the tax expertise offered in more than 50 jurisdictions globally, giving companies the most comprehensive information about the market for tax advice.

As companies grapple with the shifting global tax landscape, with fresh challenges such as the BEPS Project, increases in transparency and the upcoming US tax reform to negotiate, tax advice is more important than ever.

World Tax and World Transfer Pricing are unique in that they classify professional services, law firms, boutiques and other tax advice providers together, rather than looking at them separately, because they undoubtedly compete for work.

A change from last year is that there will be a separate questionnaire for each country. The questionnaires, downloadable below, should be returned by Friday, May 12. If you have any problems or questions, please contact Joe Stanley-Smith,

Researchers conduct interviews with several firms in each jurisdiction, as well as with clients and International Tax Review’s own database of corporate contacts. For details on ranking methodology, and to see the results of last year’s research,