Second Quarter of 2012 Underpayment and Overpayment Interest Rates
On February 23, 2012, the IRS announced that the underpayment and overpayment interest rates will remain the same for the calendar quarter beginning April 1, 2012. The rates will be:
- three (3) percent for overpayments (two (2) percent in the case of a corporation)
- three (3) percent for underpayments
- five (5) percent for large corporate underpayments
- one-half (0.5) percent for the portion of a corporate overpayment exceeding $10,000
Under the Internal Revenue Code, the rate of interest is determined on a quarterly basis. For taxpayers other than corporations, the overpayment and underpayment rate is the federal short-term rate plus 3 percentage points. Generally, in the case of a corporation, the underpayment rate is the federal short-term rate plus 3 percentage points and the overpayment rate is the federal short-term rate plus 2 percentage points.
The rate for large corporate underpayments is the federal short-term rate plus 5 percentage points. The rate on the portion of a corporate overpayment of tax exceeding $10,000 for a taxable period is the federal short-term rate plus one-half (0.5) of a percentage point.
Notice 88-59, 1988-1 C.B. 546, announced that, in determining the quarterly interest rates to be used for overpayments and underpayments of tax under section 6621, the Internal Revenue Service will use the federal short-term rate based on daily compounding because that rate is most consistent with section 6621 which, pursuant to section 6622, is subject to daily compounding.
Interest factors for daily compound interest for annual rates of 0.5 percent are published in Appendix A of Revenue Ruling 2011-32. Interest factors for daily compound interest for annual rates of 2 percent, 3 percent and 5 percent are published in Tables 7, 9, 11, and 15 of Rev. Proc. 95-17, 1995-1 C.B. 561, 563, 565, and 569.