State Tax Deadline Updates (Last Update: 3/19/21)

Many state tax deadlines will likely also change to May 17th. Get the latest on tax deadlines and guidance for your state below.

Alabama – May 17

Alabama has announced that the tax filing deadline for individual returns will be May 17, 2021. The state will waive late-payment penalties for payments made by May 17th. However, interest will accrue on any payments paid after April 15, 2021. This extension does not apply to estimated tax payments due on April 15, 2021.

Alaska – June 16

Alaska corporate income tax returns are due within 30 days of the federal due date. With the IRS extending the federal deadline to May 17th, corporate tax returns would then be due by June 16, 2021.

Alaska does not have individual state taxes. 

California – May 17

California has extended the state filing and payment deadline for individuals to May 17, 2021. This extension does not apply to estimated tax payments due on April 15, 2021 or business tax returns.

Colorado – May 17

Colorado has extended its individual state income tax payment and filing deadline to May 17, 2021. Individuals will have the option to pay any 2020 income tax payments by May 17, 2021 without penalty or interest. This extension does not apply to estimated payments for the 2021 income tax year due for individuals and corporations on April 15, 2021.  This extension does not apply to business tax returns. 

Connecticut – May 17

Connecticut has extended the filing and payment deadline for Connecticut individual income tax returns to Monday, May 17th, 2021. This extension does not apply to estimated tax payments or business tax returns.

Delaware – May 17

Delaware has extended the filing and payment deadline for Delaware individual income tax returns to May 17, 2021. This extension does not apply to estimated tax payments or business tax returns.

Illinois – May 17 

Illinois has extended the individual income tax filing and payment deadline to May 17, 2021. The filing extension does not apply to estimated tax payments that are due on April 15, 2021. This extension does not apply to business tax returns.

Kentucky – May 17

Kentucky has extended the deadline for individual income tax filing and payments to May 17, 2021. Penalties, interest and additions to tax will begin to accrue on any remaining unpaid balances as of May 17, 2021. This extension only applies to individual taxpayers and does not apply to estimated tax payments or business returns.

Louisiana – June 15

The Louisiana state tax deadline has been extended to June 15. This extended due date is for individual income, corporation income and franchise, fiduciary income, partnership and partnership composite tax returns and payments with original or extended due dates on or after February 11, 2021 and before June 14, 2021. For excise, sales, severance and withholding tax returns and payments due on or after February 11, 2021 and on or before February 28, 2021 have a due date of March 31, 2021. The IRS has extended the federal tax deadline for Louisiana residents to June 15 due to the severe winter storms.

Maine – May 17 

Maine has moved the deadline for Maine individual income tax return and individual tax payments to May 17, 2021. This extension does not apply to corporate tax returns and payments and does not apply to individual and corporate estimated tax payments. These estimated payments will remain due on April 15, 2021. 

Maryland  – July 15

The new tax deadline for Maryland state residents is now July 15, 2021. The extension applies to 2020 individual, corporate, pass-through entity, and fiduciary tax returns. It also includes 1st and 2nd quarter estimated payments that are typically due one April 15, 2021 and 2nd quarter estimated payments that are typically due on June 15, 2021 now have a deadline of July 15, 2021.

Montana – May 17

Montana has announced that the deadline to file 2020 Montana individual income tax returns is May 17, 2021. Montana taxpayers who file by May 17 will not have to worry about interest or penalties. This extension does not apply to quarterly estimated payments.

Nebraska – May 17

Nebraska has extended the deadline for individual income tax returns. This extension for filing and postponement of payment does not include estimated payments or business tax returns.

New Mexico – May 17

New Mexico has extended the deadline for filing and paying 2020 New Mexico Personal Income taxes to May 17, 2021. This extension does not apply to business tax returns or estimated payments.

North Carolina – May 17

North Carolina has extended the time for filing North Carolin individual income tax to May 17, 2021. The state will not charge penalties for those filing and paying their taxes by May 17, 2021. However, tax payments received after April 15 will be charged interest accruing from April 15 until the date of payment. This extension does not apply to trust taxes, sales and use, or withholdings taxes or estimated payments due on April 15, 2021. This extension also does not apply to business tax returns.

North Dakota – May 17 

The deadline for North Dakota individual tax return filing and payments has been extended to May 17, 2021 without penalty and interest. This extension does not apply to estimated tax payments due on April 15, 2021. This extension also does not apply to business tax returns.

Oklahoma – June 15 (Individual and Business Payments deadline)

The individual and business payments tax deadline for Oklahoma has been extended to June 15 to provide relief to those affected by the severe winter storms. This includes first quarter estimated tax payments.

The IRS has extended the federal tax deadline for Oklahoma residents to June 15 due to the severe winter storms. 

Oregon – May 17 

Oregon will follow the IRS and extended the tax filing and payment deadline for individuals to May 17. This extension does not apply to estimated tax payments or business returns.

Pennsylvania – May 17 

Pennsylvania has extended the deadline for individual income tax return filings and payments to May 17, 2021. This extension does not apply to estimated tax payments due on April 15, 2021. This extension does not apply to business returns.

South Carolina – May 17 

South Carolina has extended the deadline for individual income tax return filings and payments for the 2020 tax year to May 17, 2021. This extension is only for individual tax returns and does not apply to estimated tax payments due April 15, 2021.

Texas – June 15 (franchise tax deadline)

Texas has extended the franchise tax deadline from May 15 to June 15, to provide relief to those affected by the severe winter storms. This is in line with the federal extension for Texas residents.  

Texas does not have individual state taxes.

Vermont – May 17 

Vermont has extended the deadline for taxpayers to file their 2020 personal income tax return and pay any tax owed to May 17, 2021 without any penalties or interest. This extension also applies to Homestead Declarations and Property Tax Credit Claims allowing taxpayers to file these with their personal income tax return by May 17 without penalty or interest. This extension does not apply to any estimated payments due on April 15, 2021. This extension also does not apply to business tax returns. 

Washington D.C. – May 17

The District of Columbia has extended the state filing and payment deadline for individuals to May 17, 2021. This extension does not apply to estimated tax payments or business tax returns.

West Virginia – May 17 

West Virginia extended the state filing and payment deadline for individuals to May 17, 2021. This extension does not apply to estimated tax payments or business tax returns. 

Wisconsin – May 17 

Wisconsin has extended the individual income tax return filing and payment deadline to May 17, 2021. This extension does not apply to 2021 estimated tax payments for individuals due April 15, 2021 and does not apply to any other return or tax payments due.