The due date for filing Mississippi state taxes typically aligns with the federal tax deadline, which is usually April 15. When this date falls on a weekend or holiday, the deadline may be extended to the next business day. Taxpayers should be aware that for individuals, the Mississippi state tax return can be filed by this date to avoid penalties or interest on unpaid taxes. In some cases, if an extension is filed, taxpayers may have additional time to submit their returns. It is important to check the Mississippi Department of Revenue website for any updates or changes to deadlines, as well as for specific instructions regarding forms and payment options. Keeping informed through official channels is essential to ensure compliance.