The IRS has granted a tax deadline extension to June 15, 2021 for the states of Texas, Oklahoma, and Louisiana.

The deadlines that were extended include:

Individual and Business tax returns
2020 IRA contributions
Quarterly estimated income taxes normally due on April 15
Payroll tax returns normally due on April 30

For more detailed information, please see the IRS News Releases for each state:
Texas: https://www.irs.gov/newsroom/victims-of-texas-winter-storms-get-deadline-extensions-and-other-tax-relief

Oklahoma: https://www.irs.gov/newsroom/irs-announces-tax-relief-for-oklahoma-severe-winter-storm-victims

Louisiana: https://www.irs.gov/newsroom/irs-announces-tax-relief-for-louisiana-severe-winter-storm-victims