IRS News Release  
September 03, 1991

IRS Announces the Quarterly Interest Rates

WASHINGTON - The Internal Revenue Service today announced that interest rates for the calendar quarter beginning October 1, 1991, will remain at nine percent for overpayments, ten percent for underpayments, and twelve percent for large corporate underpayments.

Under the Internal Revenue Code, the rate of interest is determined on a quarterly basis, the rate on underpayments is one percent higher than the rate on overpayments, and the rate for large corporate underpayments is two percent higher than the rate on underpayments. The rate announced today is computes from the federal short-term rate based on daily compounding determined during July 1991.

Rev. Rul. 91-50, announcing the new rates of interest will appear in Internal Revenue Bulletin No. 1991-37, dated September 16, 1991.

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