Warren Buffett or was it the GE guy that pays 8%. Has to do with your tax bracket mostly. Can offset with $3000 in losses, I'm sure there's more tucked in there to make it zero. Not a tax expert, just know that is what it is, have friend in APDN, asked me that very question this morning about difference between short term taxes and long term, copied it from from tax expert site, shortened it a hair before I e-mailed him: The long-term holding period is more than one year. Long-term capital gains are taxed at discounted , and will be either zero percent or 15%, depending on your marginal tax bracket.