The IRS has announced that the interest rates applicable to overpayments and underpayments of federal taxes are much lower in the third quarter of 2020 compared with the rates in the second quarter of the year (Rev. Rul. 2020-13). The rates are:
Note: The IRS also announced the blended rate for 2020, which is used to figure imputed interest on below market demand loans outstanding for the entire year (Rev. Rul. 2020-14). The blended rate is 0.89% (in contrast to last year’s rate of 2.42%).
Advance payment of current tax liability based either on wage withholdings or installment payments of your estimated tax liability. To avoid penalties, you generally must pay to the IRS either 90% of your final tax liability, or either 100% or 110% of the prior year’s tax liability, depending on your adjusted gross income.