The IRS is reminding taxpayers that even though many federal tax deadlines were extended from April 15, 2021, to May 17, 2021, there are some April 15 tax deadlines still in effect. Among the April 15 deadlines that remain include paying first-quarter 2021 individual estimated taxes, filing calendar year 2020 trust and estate income tax returns and paying any previously unpaid tax, filing 2020 calendar year C corporation income tax returns (Form 1120) and paying any previously unpaid tax, and depositing calendar year corporation first installment of estimated income tax for 2021.  Call or visit our website for more information!