Re: Just change the current tax laws.
I'd have thought a single market would have a single tax rate.
And a single tax-collection agency, funneling the money into a single central government. It's the Federal end-game model for the EU, but one that none of the EU members, not even France and Germany, will ever accept. Hence the current model of fudge-on-fudge-on-fudge, with an ever-growing pile of loopholes to make accountants rich.
Maybe they should just try 99% tax on all accountants' income? The French would be willing, I'm sure...