If your refund check was received later than usual and you did file by July 15, 2020, or if you have not yet received your refund check, IRS will pay you interest. The interest will be sent by check or directly deposited into your bank account, depending on the method chosen on your tax return for your refund.
The average interest payment is $18.00. Please note, this interest is considered taxable income. Therefore, in January of 2021 you will receive a form 1099-Int indicating the exact amount of interest that you received.
Please send this form with your other tax documents for inclusion on your tax return.