World Tax 2021 is live: A guide to the world's leading tax firms

Produced in association with ITR (International Tax Review), World Tax provides rankings and profiles of the most effective tax practitioners in the world, covering almost 90 jurisdictions located on every continent.

Tax is a multi-faceted enterprise covering a range of disciplines. The rankings seek to reflect this by having law firms, consultancies and advisory groups all included in the mix. It also looks to split the rankings into multiple tables, where appropriate, to recognise the varied expertise of different practices within each market.

The World Tax guide is produced using three foundational pillars of research:

The research teams combine these three sources – along with independent research – to produce the finished World Tax guide.

As part of the World Tax research process, researchers provide individual coverage of all participating firms. These reviews of the firms will be published in October, along with the publishing of the print version of the guide.

You can also find the practitioner profiles online. These are the leading individuals and rising stars, determined as part of the research process, in their various jurisdictions. Those individuals can be found online at itrworldtax.com.