The IRS has
received a copy of a form 1099-B, in your name and social security number, for
the sale of stock or mutual funds. The gross amount was $13,000. The $13,000 is not taxable income. Only the capital gain, or loss, (the difference between what your sold the stock for and what you paid for it) is reportable income. However, until you report the sale on form 8949 and schedule D, showing your gain or loss; the IRS will treat the whole $13K as income.
