I disagree, but I may not have expressed myself clearly. I have no doubt that an attempt to make the tax system air-tight would result in an even greater degre

I disagree, but I may not have expressed myself clearly. I have no doubt that an attempt to make the tax system air-tight would result in an even greater degree of loopholes and bureaucracy. But laws are not air-tight. Case law and "common-sense" should prevail. Shutting down the most egregious tax-avoiders (i.e. those companies who rely on untested laws) would quickly clarify the situation for all other accountants. Loopholes would be exploited once - accountants would not sign off the audits of companies using them in the future. In this vision of the future the exploiting companies need not be punished harshly - exploring and testing the tax system could be looked on in the same way as white-hat penetration testing. "Thank you for bringing the loophole to our attention. You may not use it. Return any profit you made from it. However, anyone caught using it in the future will be face a much greater punishment."