2013 4th Quarter Underpayment and Overpayment Interest Rates
The underpayment and overpayment interest rates will remain the same for the calendar quarter beginning October 1, 2013. 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; and one-half (0.5) percent for the portion […]