Do I need to pay taxes if I sell an alt coin for bitcoin then rebuy a different alt coin. I never took out actual USD so I am unsure how that would work. Or am I only taxes on actual USD made when I cash out?
The platform we are using is already paying taxes depends on the country they are operating that is the reason why other platform has a high transaction fee than the other platform. If you convert your cryptocurrency into fiat they will automatically deduct it together with tax depends on the country you are residing. That is why buying and selling bitcoin has a wide gap.