Governor Parson Announces Individual Tax Filing and Payment Deadline Extended to May 17, 2021

Today, Governor Mike Parson announced that the Missouri Department of Revenue is extending the state individual tax filing and payment deadline for the 2020 tax year from April 15, 2021, to May 17, 2021. This decision mirrors Wednesday’s announcement by the U.S. Treasury Department and the Internal Revenue Service (IRS) that individual taxpayers would receive automatic extensions to file and pay federal income tax for the 2020 tax year. The IRS has said it will issue formal guidance in the coming days.

The Department of Revenue will automatically provide this filing and payment relief, so filers do not need to take any action to qualify.

Guidance on extension to file and pay individual income tax:

  • Filing deadline extended: The deadline to file individual income tax returns has been extended from April 15, 2021, to May 17, 2021.
  • Payment relief for individuals: The deadline to pay taxes owed on individual income tax returns with a due date of April 15, 2021, has been extended until May 17, 2021.
  • This relief applies to individual taxpayers, including those who pay self-employment tax. However, it does not apply to estimated tax payments that are due on April 15, 2021; that deadline has not changed.
  • Penalties and interest will begin to accrue on any remaining unpaid balances as of May 17, 2021. Individuals that file their return and pay their balance by May 17, 2021, will automatically avoid interest and penalties on the tax paid by May 17.
  • Customers may still ask for an extension of time to file their individual income taxes. With that extension, the return will not be due until October 15, 2021. However, any payments must still be made by May 17, 2021.

Earlier this year, the IRS announced that the nation’s 2021 electronic tax filing season would begin on February 12. On that date, the IRS began accepting and processing e-filed 2020 tax year returns. Since e-filed state returns are first sent to the IRS, the Department also began accepting and processing e-filed returns for the 2020 tax year on February 12.

Department of Revenue online services and resources:

  • The Department’s Tax Return Status Tracker allows customers to enroll in automatic text and email alerts that are sent each time the status of their return is updated. Customers need their Social Security number, filing status, and anticipated refund or balance due to enroll and must re-enroll each year.
  • Get answers 24/7 by reviewing the Personal Tax FAQs or with the help of the Department’s chatbot, DORA, a virtual assistant programmed to respond to common taxation, motor vehicle, and driver licensing questions.
  • Email questions to


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