Flat, wealth tax performed in the manner of a lottery. Basically, the government draws a bunch of names from a hat. Then, the government raids the properties of the hapless victims whose names it drew from the hat and takes X% of all the wealth they can find. No penalties for tax evasion, so it would be catch-as-catch-can.
Most citizens would not have to pay taxes most of the time. This would be a massive boost to the economy since the economic distortions created by taxation are probably more costly to the economy than the actual revenues lost. If the government starts getting too greedy, people will take more pains to hide their wealth better, reducing the government’s effective revenues.
It’s not a pretty system, but it’s at least honest about what taxation is and it would manage to free most economic activity from taxation most of the time. Because of the random nature of taxation, there would be no systematic effect on the economy so being a victim of taxation would be more like suffering a natural disaster or random criminal violence than central-planning.
Clayton -