If you're investing in exchange-traded stock funds, you shouldn't have too many shocks this tax season. But if you've got big gains from ETFs that invest in commodities, like corn, you could be shucking out some extra dollars to the tax man.
Short-term gains on securities – gains realized in less than a year – are taxed at your ordinary income rate. Maximum rate this year: 39.6% for single filers with $406,751 or more in taxable income. For joint filers, the top rate starts at $457,601.