So it seems safe to say you must report earnings if you had funds from trading on exchanges deposited in your account to the IRS. If you are mining at home can you write off a portion of your electrical bill?
https://en.bitcoin.it/wiki/Tax_complianceQuote:
What expenses can I deduct/expense/itemize if I set up a Bitcoin mining operation?
That depends on your situation. Generally speaking, though, you can deduct business expenses that are ordinary and necessary. Buying video cards would be both of these, buying a big screen TV to watch while mining would be neither.Yes, but there are a lot of rules you need to follow if you are operating a business out of your home. If you are attempting to write off electricity you probable need to have a separate meter on your mining equipment so you can say exactly how much electricity it is using and write off that portion.
Also note that you are writing it off against your mining income. So you need to declare every satoshi you mine and the exchange rate it was at the time you mined it and declare it as income.