Here is the information, directly from the IRS web site.
For more information visit their site (www.IRS.gov) and type in
"barter".
Trade Dollars
Barter exchanges have their own unit of exchange, usually known as barter
or trade dollars. Trade dollars or barter dollars are valued in U.S.
currency for the purposes of information returns. Trade dollars
allow barter to take place between parties when one party may not have a
simultaneous need or desire for the goods or services of the other members.
Barter exchanges act as the bookkeeper for keeping track of trade dollars that
participants accumulate. Earning trade or barter dollars through a barter
exchange is considered taxable income, just as if your product or service was
sold for cash.
Requirement for Barter Exchanges to File Information Returns
Barter exchanges are required to issue Form
1099-B Proceeds from Broker and Barter Exchange Transactions,
annually to their clients or members and to the Internal Revenue Service."
