IRS Announces Lower Interest Rates for Fourth Quarter of 2011

The IRS, in Rev. Rul. 2011-18, announced that interest rates would decrease for the fourth quarter of 2011.For the fourth quarter, interest rates are as follows:1) 3% for overpayments (2% for a corporation), as opposed to 4% (for a corporation) last quarter;2) 3% for underpayments, as opposed to 4% last quarter;3) 5% for large corporate underpayments, as opposed to 6% last quarter; and4) .5% for corporate overpayments exceeding $10,000, as opposed to 1.5% last quarter.