The Internal Revenue Service on 9 June 2017 announced that interest rates for tax underpayments and overpayments will remain the same for the calendar quarter beginning July 1, 2017.
The rates will be:
- four percent for overpayments (three percent in the case of a corporation);
- one and one-half percent for the portion of a corporate overpayment exceeding $10,000;
- four percent for underpayments; and
- six percent for large corporate underpayments.
Under the Internal Revenue Code, the rate of interest on tax underpayments and overpayments 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 of a percentage point.
The interest rates are computed from the federal short-term rate determined during April 2017 to take effect May 1, 2017, based on daily compounding. Revenue Ruling 2017-13, announcing the rates of interest, will appear in Internal Revenue Bulletin 2017-26, dated June 26, 2017.
The IRS has announced on 7 March 2017 that the interest rates for the second quarter beginning 1 April 2017, will bet 4 percent for overpayments i.e. tax refunds (3 percent in the case of a corporation), 4 percent for underpayments i.e. tax assessments and late tax payments and 6 percent for large corporate underpayments. The interest rate for the portion of a corporate overpayment exceeding $10,000 is 1.5 percent.
The interest rates on overpayments and underpayments for the second quarter of 2017 are unchanged from the rates announced for the first quarter of 2017.