The IRS interest rates on underpayments and overpayments had remained unchanged since the first quarter of 2021. Starting April 1, 2022, the IRS interest rates increase by one percentage rate (Rev. Rul. 2022-5). The rates are:
Rules that limit the deduction of losses from passive activities to income from other passive activities. Passive activities include investment rental operations or businesses in which you do not materially participate.