If it was an option in your country, would you pay your taxes with Bitcoin?
Or would that not make any sense to you at all, especially if you hold BTC as an asset whose value you hope to see increasing over time...?
I personally pay my taxes with EUR and will probably continue to do so even if I can pay with BTC
I would not pay my taxes in any currency that was not the official currency of the government entity I owed taxes to.
Sales tax, well there I would pay in bitcoin if I was buying in bitcoin.
But I mean tax on my income that I am required to pay at the federal, state, and local level. That I will always pay in the currency officially used by that government entity for business.