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The state tax filing deadline is April 20, 2021, and will not be postponed, according to Hawaii's Department of Taxation. The state tax filing and payment deadline has been moved to May 17, 2021. While the state will automatically waive late-payment penalties for payments remitted by May 17, 2021, interest will still accrue from April 15, 2021, through the actual payment date. Hawaii Alaska Florida South Carolina Georgia Alabama North Carolina Tennessee RI Rhode Island CT Connecticut MA Massachusetts Maine NH New Hampshire VT Vermont New York NJ New Jersey DE Delaware MD Maryland West Virginia Ohio Michigan Arizona Nevada Utah Colorado New Mexico South Dakota Iowa Indiana Illinois Minnesota Wisconsin Missouri Louisiana Virginia DC Washington DC Idaho California North Dakota Washington Oregon Montana Wyoming Nebraska Kansas Oklahoma Pennsylvania Kentucky Mississippi Arkansas Texas File Your 2021 Taxes Today! Alabama