mine 1 BTC at $400 - logged as income
Cost to mine that same 1 BTC - $490 logged as expense
net loss - $90
sold same 1 BTC at $500
do you pay capital gains on $100 or $10?
You mined the bitcoin for a value of $400, it's the same as if your boss (for a typical job) paid you $400 that day. So you add the $400 to your regular income.
You can then deduct the $490 (as a business expense expense if you're running your bitcoin mining as a business, or as a hobby expense if you're not a business but itemize your deductions). Either way, you'd net out with zero income, so no extra tax there. That said, consult with an accountant on whether you can deduct the extra $90 loss from your other income. Also, you can't deduct at all if you mine as a hobby, and you take the standard (non-itemized) deduction.
Next, you sold your bitcoin for $500. This means a capital gain of $500 - $400 = $100. So you pay capital gains on $100.
i was told as a miner with the IRS guidelines...that state that bitcoin is "property" ie land...(my CPA laughed said i was a farmer) that i had to keep track of when/how much btc was when it hit my address *used the little chart on coinbase for my 16 transactions*...and thus that was my 'gross income" taxed at 25%
IF>>>> I sold any bitcoin before 1 year and 1 day (like land) I would have an additional 46% capital gains tax...if i just bought coin (did not mine it) and or sold my mined coin that i already paid taxes on to IRS after 1year and 1 day then the capital gains tax on the increase is 20 %
yeah sucks
on the other hand being a *farmer" equip/home business..etc etc ...did the short form of home business checked the box on form version etc* ....CPA went to town and on 16k of 'gross income" mining...i straight out owed 4K i paid 550 usd
so know I know how farmers do this stuff..borrow like hell ..hope next years crop comes in 'great' or in my case BTC is high next nov/dec when i can cash out some coin IRS target free
so it goes (should link a farming song here)
http://www.youtube.com/watch?v=umS3XM3xAPk
seems appropriate I'm about that clueless
Searing