State of Mississippi
Personal Income Tax Extensions
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Mississippi Filing Due Date: MS individual income tax returns are due by April 15 — or by the 15th day of the 4th month following the end of the taxable year (for fiscal year filers).
Extended Deadline with Mississippi Tax Extension: Mississippi offers a 6-month extension, which moves the individual filing deadline from April 15 to October 15.
Mississippi Tax Extension Form: To request a Mississippi extension, file Form 80-106 by the original due date of your return and pay any income tax due.
If you have an approved Federal tax extension (IRS Form 4868), you will automatically receive a Mississippi tax extension. In this case, you do not need to file Form 80-106 unless you’re making a state tax payment.
Mississippi Extension Payment Requirement: A tax extension gives you extra time to file. It does not give you more time to pay your Mississippi income tax. All state tax payments are due by the original deadline of the return. Any tax that isn’t paid on time will be subject to interest and penalties. You can make an extension payment for your Mississippi income tax with Form 80-106, or pay electronically through Mississippi’s Taxpayer Access Point: tap.dor.ms.gov