Tax avoidance in all BBC programmes
Michael Robinson reveals loopholes which let big businesses slash their UK tax bills.
As big business is asked to pay its dues, are some charities being used for tax avoidance.
An investigation into international offshore finance.
As the Treasury reviews tax avoidance, Fran Abrams asks - how widespread is the problem?
Corporate tax: Who writes the rules? Fran Abrams investigates.
A major investigation reveals how the world's most notorious regimes get around sanctions