As an Accountant ( now retired) I was often by my clients what was the difference between tax avoidance and tax evasion and the answer was very simple… the thickness of the prison wallsI'm no expert but I am told by an expert that there is a big difference between Tax Avoidance and Tax Evasion - avoidance is acceptable, evasion isn't. Not that that stops me from doing 'deals for cash' with local tradesmen when I can save a packet! ;-)