My original thought was something like: if you make tax rates uniform and easily understandable (e.g. 10% flat rate for everything and everyone) and remove all deductions, exceptions, etc. then you would get less tax avoidance/minimization and ultimately more tax revenues. But I’m not a tax accountant or economist and I haven’t done the math on this. At the very least, the entire infrastructure would be far more transparent and efficient.
One of the hidden issues of complex tax is the millions spent on pay clever people to either account for it, minimise it, or check it. I'd love to know how much is spent on that that could be otherwise spent on all of that!
Well, it would certainly simplify some of it! Plenty of non-government uses for accounting; it's just we would have some of those clever people working to produce instead of to account to government.