Interest rates charged by the IRS on underpaid taxes and applied by the IRS on tax overpayments will increase for the second quarter of 2018 (April 1 through June 30). Here are the new rates:

 

For Individuals

• 5 percent charged on underpayments
• 5 percent paid on overpayments

For Corporations:

• 5 percent charged on underpayments
• 4 percent paid on overpayments
• 7 percent charged on large corporate underpayments
• 2.5 percent paid on the portion of a corporate overpayment exceeding $10,000