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:
A mutual-fund distribution allocated to gains realized on the sale of fund portfolio assets. You report the distribution as long-term capital gain even if you held the fund shares short term.