Please consult a tax consultant to do some fact finding with you. A recent tax case in Malaysia: A doctor is convicted for tax evasion and fined for few millions. He assumed himself as making non taxable capital gain and his tax advisor also took it for granted too lightly. However the IRB challeged his case up to the court and the judge is in favour to the IRB. FYI The doctor was trading shares back to more than 20 years ago. How was your case?