An offer in compromise (OIC) is an agreement between a taxpayer and the Internal Revenue Service that settles a taxpayer's tax liabilities for less than the full amount owed. That's the good news. The bad news is that not everyone is eligible to use this option to settle tax debt. In fact, nearly 60 percent of taxpayer requested offers in compromise were rejected by the IRS. If you owe money to the IRS and are wondering if an IRS offer in compromise is the answer, here's what you need to know.