For years, the IRS has had the ability to identify the gross sales of taxpayers from broker transactions, including security (reported on a 1099-B) and property sales (reported on 1099-S forms). However, these identified only the sales price, quantity sold (for securities), and dates of the transactions. To determine the profit or loss, you must also know the tax basis of the property that was sold. Without confirmation of the basis, which up to now has been obtainable only from the taxpayer via an audit, the IRS has no way to verify the reported...