The interest rates on overpayments and underpayments for the second quarter of 2020 are unchanged from the first quarter rates (Rev Rul. 2020-7). The rates are:
The 5% rate is used to figure estimated tax penalties for individuals for the first 15 days of April.
A tax technique of applying a loss or credit from a current year to a later year. For example, a business net operating loss may be carried forward 20 years instead of being carried back.