Frequency shouldn't matter. The reason a head tax is the most efficient tax is because it doesn't distort behavior since it's the same amount regardless of how much you make or what you buy or how you invest. Whether it's an annual or monthly head tax doesn't matter. 



That is a fun fact! Does it make how frequently it’s paid or is it paid once?

k00b

AskSN

What will governments look like when the world is on a Bitcoin standard?

The forms of revenue they extract will likely change, but that's always happening as technology changes what's easiest to milk. There will still be physical stuff in physical places, so jackboots can always go around extorting people.

I would expect we'll see less taxation on financial transactions and more fees for doing stuff or just for existing. Fun fact: according to conventional econ models, the least distortionary tax is just a simple "head tax" where everyone pays the same amount.