This article was published by the IRS. In April, the IRS sent CP2100 and CP2100A notices to banks, credit unions, businesses, or payers who filed returns that don't match IRS records. These information returns include: Form 1099-B, Proceeds from Broker and Barter Exchange Transactions Form 1099-DIV, Dividends and Distributions Form 1099-G, Certain Government Payments Form 1099-INT, [...]