That sounds very complex.
How about this: you have absolute freedom of movement between all nation states. That broadly gives you a very wide choice of how much tax you would be happy to pay.
Were this the case, I would pack my bags right now and move to Mauritius with its 10% income tax.
Would solve the problem of taxation once and for all. However it would eliminate the welfare state completely because the poor will flood the countries with high taxes and welfare, whilst the rich would flee to countries that have low taxes.
Personally I am against the establishment of any form of government, however, should one "have to" have a government (as seems 'popular' the past few millennia), then people might wish to keep in mind...
Taxation is implemented through threat of violence. Threats of violence can never be justified in any civilised society and therefore same ought to be removed.
Whatever mental gymnastics one finds to justify ‘taxation’ and to willingly accept it upon oneself and one's neighbour, as it stands, still equates to one nothing more than being a head of cattle on a tax farm. Choices, choices.