rr-18-18, quarterly interest rates

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IRS GuideWire June 8, 2018

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Issue Number:    rr-18-18

Inside This Issue


Revenue Ruling 2018-18 provides interest rates: underpayments and overpayments. The rates for interest determined under Section 6621 of the code for the calendar quarter beginning July 1, 2018, will be 5 percent for overpayments (4 percent in the case of a corporation), 5 percent for underpayments, and 7 percent for large corporate underpayments. The rate of interest paid on the portion of a corporate overpayment exceeding $10,000 will be 2.5 percent. 

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