I immediately sold everything online via eBay. Thanks for the advice, I'll start doing some homework.

Huh? What are you talking about? What did you just sell in ebay to remove your already existing tax obligation? Didn't you just sold all the miners in 2017 that's why you have a tax obligation now? You wouldn't even have local sales and compensating tax if you didn't sell anything coming from abroad. Or you are talking about some of the miners you are still selling now? If that's what you are talking about you just made your tax obligation bigger because you have sold another miner online, it doesn't really mitigate anything at all.