The IRS and Treasury have extended the deadlines for filing and paying your federal taxes to July 15th. Here’s a handy link to check your state’s tax filing and payment deadlines: https://www.taxadmin.org/state-tax-agencies
You also now have until July 15th to make your 2019 IRA or HSA contributions. It also applies for Archer MSAs.
If you make quarterly estimated payments, your Q1 2020 payment, normally due on April 15th, and your Q2 2020 payment, normally due on June 15th, are now both due on July 15th.
Hope this helps to clarify any confusion!