Record Keeping
Because the barter exchange is the bookkeeper for transactions, members don't have to keep up with each transaction's paperwork and records. The exchange also serves as the bank and keeps the money (trade dollars) for businesses that don't immediately need to spend it.
Tax Reporting
At the end of each calendar year, the barter service will provide you with a record of the fair market value of all income you received from exchanges on an IRS Form 1099-B.
However, it is up to you to keep track of expenses related to your bartering transactions if you intend to use them in your business tax return to offset the income you received from bartering.