Unless and until if the respective country accepts bitcoin, yes we can pay tax. But still should it be done as bitcoin is earned from another source where the government doesn't have to do anything from their side? I wish to pay tax to the crypto community and it's development rather than to the government. I don't know how you guys would take it. But I feel the gratitude paid as tax should reach the concern who are behind it.
I think we are paying taxes to our government, you know why? when are you going to cash out your fiat and when you converted bitcoin to fiat which mostly does your claim at? Me, at remittance center every time I cash my money I paid them his a little so, nothing to worry here.
So, we pay tax but not directly to our government and it served that in BTC.