Although in the past eight years or so, various UK Governments have introduced legislation which has withdrawn some of the previously available tax advantages of such structures, they remain valuable tax planning vehicles in the right circumstances.
Typically, most offshore structures will comprise of either an offshore trust, an offshore company or an offshore trust which holds underlying offshore companies.
In most cases, the person that creates the offshore structure (i.e. the settlor) will wish to be included in the class of beneficiaries and, where relevant, will also want his/her own immediate family as beneficiaries.