There's more to it than that.  Since it involves investing, you need to determine whether or not you're a professional investor or are buying assets occassionally with the hope of making a profit when you sell.  What else you do to produce income, the amount of time you spend in the activity, how many assets you purchase and sell, etc. all come into play.  If you are determined to be a professional investor your profits (less allowable business deductions) will be subject to ordinary income and self employment taxes.  If you are an occasional investor buying on speculation, your profits (or losses) would be subject to capital gains rules instead.  I would recommend talking to a professional before you do too much more with this to see if what you make on it is going to be worth the extra bookkeeping and taxes.