2021-03-31 Deadline for businesses to e-file Forms 1099 and 1096 to the IRS, except Form 1099-NEC Deadline for businesses to e-file Forms 1099 and 1096 to the IRS, except Form 1099-NEC March 31, 2021 Deadline for businesses to e-file Forms 1099 and 1096 to the IRS, except Form 1099-NEC
2021-04-15 Last Day to make 2020 HSA Contributions Last Day to make 2020 HSA Contributions April 15, 2021 Last Day to make 2020 HSA Contributions
2021-04-15 1st Quarter 2021 Estimated Tax Payment Due 1st Quarter 2021 Estimated Tax Payment Due April 15, 2021 1st Quarter 2021 Estimated Tax Payment Due
2021-04-15 Last Day to make 2020 IRA Contributions Last Day to make 2020 IRA Contributions April 15, 2021 Last Day to make 2020 IRA Contributions
2021-04-15 2020 Individual Federal and CT Income Tax Returns or Extensions Due 2020 Individual Federal and CT Income Tax Returns or Extensions Due April 15, 2021 2020 Individual Federal and CT Income Tax Returns or Extensions Due