[triggercut]

You might be interested in the OECD's way to make blatant tax avoidance like the original comment a little harder.

[https://www.oecd.org/tax/beps/]

Groups where the ultimate parent is responsible for roughly over 1Bn in revenue are required to submit Country By Country Reports covering all cross border transactions their details and their transfer pricing methodology, and, in many cases, the underlying documentation of those transactions (contracts, loan agreements etc.). These are digitally submitted via your local jurisdictions Tax authority and shared with all member countries. Companies as part of that group are required to lodge more detailed information at a local level on just their cross border transactions with others in the group. This allows for some level of check that information being reported is globally consistent between tax authorities, who are then able to identify and place controls on unwanted behaviours.

[toyg]

It should be noted this is framework is all very new. IIRC Country By Country reporting became compulsory in the UK only last year.