Besides being the last day for individuals to file (or extend) their 2022 personal returns and pay any tax due, first-quarter 2023 estimated tax payments for individuals, trusts, and calendar-year corporations are due today (the states of Maine and Massachusetts have an April 19th federal deadline). Also due are 2022 returns for trusts and calendar-year estates and C corporations, FinCEN Form 114 (“Report of Foreign Bank and Financial Accounts” [but an automatic extension applies to October 16]), plus any final contributions that individuals plan to make to IRAs or education savings accounts for 2022. SEP and profit-sharing plan contributions are also due today if the return is not being extended.