State of Delaware
Personal Income Tax Extensions
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Delaware has announced that the tax filing deadline for individual returns is May 17th.
Delaware Filing Due Date: Individual income tax returns are due by April 30 — or by the last day of the 4th month following the end of the taxable year (for fiscal year filers).
Extended Deadline with Delaware Tax Extension: Delaware offers a 5 ½-month extension, which moves the filing deadline to October 15 (for calendar year filers).
Delaware Tax Extension Form: To request a Delaware extension, file Form 1027 by the original due date of your return. You can print and mail Form 1027, or file your extension request electronically through Delaware’s Online Services system: dorweb.revenue.delaware.gov/pitext
Delaware Extension Payment Requirement: An extension of time to file is not an extension of time to pay your Delaware income tax. All state tax payments are due by the original deadline of the return. Any Delaware tax not paid by the proper due date will be subject to interest and penalties. You can make a state extension payment with Form 1027, or pay electronically using Delaware's Online Services system: revenue.delaware.gov/onlineservices
Delaware Tax Extension Tip: If you have an approved Federal tax extension (IRS Form 4868) and you owe zero Delaware income tax, you will automatically be granted a Delaware extension. In this case, you do not need to submit a separate state extension request in order to get more time to file.