Since so many people ask about the tax issues around bitcoins thought I would share my experience with bitcoin profits and taxes in Canada.
Basically I purchase equipment to build a dedicated bitcoin machine, total cost around $900 mostly for graphics cards. In all I made about 600 bitcoins over three months and was on average able to cash them out for about $10 per bitcoin shortly after the crash of the price from $30 on the way down to $5. As a Canadian during the $30 spike, the ability to liquidate fast enough to take advantage of those prices while limited due to the risk I was willing to take about putting my bitcoin in different online exchange accounts.
In all I gross about $6k and come tax time spoke with my accountant and was able to claim it as business income. That means I was able to write off a portion of space in my house (limited by local by-laws), mortgage payments, power, utilities, etc... as well as write off portions of the $900 PC purchase each year as capital investment. After all was said in done on the $6k I took in, I ended up having to pay back $1.5k for a net of $4.5k plus a still have a great new PC.
For the three months I toyed with Bitcoin it was certainly worth it.