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?
There are the exchange taxes so if you converted any altcoin in bitcoin i believe you paid the tax. If we talk about governmental tax, if it is not converted in fiat coins then you don;t have to.