There appears to be a bad side effect to not being able to deposit USD into Bittrex. Since every coin-to-coin purchase is IRS reportable for capital gains, this means that if you move BTC (or other coin) into Bittrex, then use it to buy another coin, you will have to track the USD equivalent of the BTC that you use to buy it, and use FIFO, LIFO, etc. to track and report the capital gains on the BTC as you dispose of it to obtain the other coin.

I want to use Bittrex, but at this time, I'm only buying coin in USD and hodl'ing. So far, I've bought a bunch but haven't had any reportable transactions since I'm only buying and not selling.

I have done the research to know that many crypto traders are using like/kind transactions, but this is highly speculative and subject to back taxes, interest, and penalties if the IRS eventually decides that not every crypto currency is similar enough to allow for like/kind transactions.

Thoughts?