State Income Tax
Mississippi imposes a state income tax using a flat rate of 4% on all taxable income regardless of income level. The filing deadline is 2026-04-15. Social Security benefits are exempt from Mississippi state income tax. Retirement income is generally exempt from state tax. Social Security and qualified retirement/pension income are completely tax-exempt.
Retirement Income Details
Social Security and qualified retirement/pension income are completely tax-exempt.
Does Mississippi have a state income tax?
Yes. Mississippi has a state income tax with a flat rate of 4%.
What is the Mississippi income tax rate?
Mississippi uses a flat tax rate of 4% on all taxable income. This means all taxpayers pay the same rate regardless of how much they earn.
Is Social Security taxed in Mississippi?
No. Mississippi does not tax Social Security benefits, which can be significant for retirees living on fixed incomes.
Is retirement income taxed in Mississippi?
Mississippi generally exempts retirement income from state tax. Social Security and qualified retirement/pension income are completely tax-exempt.
When is the Mississippi income tax filing deadline?
The Mississippi state income tax filing deadline is 2026-04-15. You can file and pay through the official Mississippi Department of Revenue portal.
What is the standard deduction in Mississippi?
Mississippi's standard deduction is $2,300 for single filers and $4,600 for married filing jointly. A personal exemption of $6,000 (single) may also apply.
How does Mississippi income tax compare to neighboring states?
Mississippi's top rate of 4% is relatively low compared to most states. Use the comparison table above to see how neighboring states compare.
Official Payment Portal
Mississippi Department of Revenue
Last verified: 2026-03-31 · Always consult a tax professional before making financial decisions.