This notice provides relief for certain taxpayers from certain failure to file penalties and certain international information return (IIR) penalties with respect to tax returns for taxable years 2019 and 2020 that are filed on or before September 30, 2022. This notice also provides relief from certain information return penalties with respect to taxable year 2019 returns that were filed on or before August 1, 2020, and with respect to taxable year 2020 returns that were filed on or before August 1, 2021. The relevant penalties will be waived or, to the extent previously assessed, abated, refunded, or credited, as described in section 3.A of this notice. Situations where penalty relief does not apply are described in section 3.B of this notice.