An IRS CP2000 notice proposes changes when third party tax information does not match a filed return. Before agreeing or paying, determine whether the IRS correctly accounted for basis, expenses, prior reporting, corrected information, penalties, and the actual tax treatment of the transaction.

A late Form 1099 does not automatically mean additional tax is due. Learn what to review after receiving a Form 1099 after filing, how IRC Section 6201(d) applies to disputed information returns, and what changes if the IRS sends a CP2000 notice.