IR-2008-139, Dec. 10, 2008
WASHINGTON – The Internal Revenue Service today announced in Revenue Ruling 2008-54 that interest rates for the calendar quarter beginning Jan. 1, 2009 will drop by one percentage point. The new rates will be:
- Five (5) percent for overpayments [four (4) percent in the case of a corporation];
- Five (5) percent for underpayments;
- Seven (7) percent for large corporate underpayments; and
- Two and one-half (2.5) percent for the portion of a corporate overpayment exceeding $10,000.