You forget that taxes first were non-monetary, and only now money because it's way easier to transport and store a piece of paper (or a number in an bank account) then a few tons of wheat.
Also inflation.
But you are not so wrong as it may seem. Historically the money creation was by loaning - and then, every century or so, there was a loan forgiveness. Since the king was the biggest loan taker...
That was also a tax, just more efficient - the rich got less rich but were still wealthy, and the ultra poor suddenly were still poor but free to try to get rich themselves.
While you might be correct that the first taxes were non-monetary, they were imposed upon subjects of the ruler/king. Not on an equal sovereign. I think to this day that is still true. Exercising sovereignty is the challenge us Americans currently have before us.
Additionally from my research, historically, money has been gold and silver coin. In recent history the practice of fiat paper currency has been to loan it into existence, at interest I might add. Also note that when gold and silver are used as a country's money, there is minimal inflation and more often than not, deflation. That deflation helps the general population rise in their standard of living.
Thanks for your comments.