mining and income taxes

At this point I have invested all my mining profits into GPUs/pc gear and silver. Never really invested as much as this year so never had to think about taxes on it. Im sure I will have to talk to an accountant to sort everything out. But my question is for those who have been mining for a few years with substantial profits. Is it considered a capital gain if you reinvest into GPUs? Im sure the silver is considered a capital gain, but if the GPUs have to be included would that fall under deductions as well or instead?

I should add I bought all this stuff with bitcoin and never converted to USD. I started with a 290x from a friend and a 7950 off craigslist.