No Change to Quarterly IRS Interest Rates Relating to Customs Duties

U.S. Customs and Border Protection has updated its list of the quarterly Internal Revenue Service interest rates used to calculate interest on overdue accounts (underpayments) and refunds (overpayments) of customs duties. For the quarter July 1 through Sept. 30, 2018, the interest rates for overpayments are four percent for corporations and five percent for non-corporations, and the interest rate for underpayments is five percent. These rates were last changed effective April 1, 2018.