can anyone share an example of a nation which has abolished income taxes and successfully used a flat tax?
Honestly? Before the worldwide economic meltdown one could say it was the Eastern Bloc nations. Of course, they kept spending like they had a "progressive" tax system and were leveraged to the hilt from mad borrowing from W. European nations.
It almost isn't totally about just having the Flat Tax (I don't agree with it 100% either) it is about having some sort of easier and more efficient tax code, eliminating deductions and cutting the IRS and other such garbage to the bone. In my dream world, the govt. would have to apportion the incoming "revenue" from the taxpayers and we, as a nation/govt, would have to look into the abyss and really make the choice about wanting to pay for all the programs and huge govt etc etc.
In the case of the last 50 years, well, we haven't made that choice.....and now here we are.