IRS to Hike Interest Rates for Q4

A 6% overpayment and underpayment rate will apply to most taxpayers starting Oct. 1.

The Internal Revenue Service said late Monday that it would raise its interest rates for the fourth quarter of 2022,  with the rate for individuals’ overpayments and underpayments to be 6% per year, compounded daily, up from 5% for the quarter that began on July 1.

The new rates for overpayment and underpayment, explained in Revenue Ruling 2022-15, are as follows:

Under the Internal Revenue Code, the rate of interest 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, the IRS said.

“Generally, for 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 IRS states.

“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 (0.5) of a percentage point,” the IRS said.

The interest rates announced Monday are computed from the federal short-term rate determined during July 2022, the agency explained.

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