Estimate your Mississippi state income tax plus combined federal and MS state tax for 2026. 4.7% flat rate.
Mississippi is transitioning to a flat income tax rate of 4.7% in 2026 with further reductions planned. Mississippi exempts the first $10,000 of income from state tax. Mississippi does not tax Social Security benefits or retirement income for most residents. Use the calculator above to estimate your combined federal and Mississippi state income tax for 2026. State tax figures use a simplified rate — for precise Mississippi state tax calculations, consult the Mississippi Department of Revenue or a licensed tax professional.
Mississippi uses a 4.7% flat rate state income tax structure. Like most states, Mississippi starts its calculation from your federal Adjusted Gross Income (AGI), then applies state-specific adjustments — subtracting income Mississippi excludes from taxation (such as certain pension or Social Security income) and adding back any income Mississippi taxes that the federal government does not. After adjustments, the Mississippi standard deduction is applied, then the 4.7% flat rate is applied to arrive at state taxable income.
Mississippi income tax is collected through employer paycheck withholding for W-2 employees and through quarterly estimated payments for self-employed residents and those with significant non-wage income. The Mississippi state return is generally due April 15, aligned with federal returns. Part-year residents and nonresidents who earn income sourced in Mississippi must also file a Mississippi return for that income portion.
Your Mississippi state income taxes are deductible on your federal Schedule A as part of the SALT (State and Local Tax) deduction, capped at $40,400 in 2026 under OBBBA. At the 22% federal bracket, paying $2,784 in Mississippi state income tax generates approximately $612 in federal tax savings, reducing the true net cost of your Mississippi taxes to about $2,172 for itemizing taxpayers.
Jordan is a single filer earning $75,000 in Mississippi. This shows how federal and Mississippi state income tax are calculated together.
Moving to a no-income-tax state (Texas, Florida, Nevada, or Wyoming) would save Jordan approximately $2,784/year ($232/month) in state income taxes. However, no-income-tax states often fund services through higher property taxes, sales taxes, or other fees, so a complete comparison requires evaluating all taxes together, not just income tax.
Mississippi Tax Rate and Annual Filing
Mississippi residents earning above the state filing threshold must file a Mississippi income tax return annually, typically due April 15. The 4.7% flat rate applies after Mississippi-specific deductions and any state tax credits. Employers withhold Mississippi state income tax from employee paychecks throughout the year using Mississippi withholding tables, and any balance owed or refund due is settled when the annual state return is filed. Self-employed Mississippi residents make quarterly estimated payments to the state in addition to their federal quarterly estimated tax payments.
Federal SALT Deduction Reduces Net State Tax Cost
State income taxes paid in Mississippi reduce your federal taxable income through the SALT deduction (capped at $40,400 in 2026 under OBBBA). For a Mississippi resident in the 22% federal bracket paying $2,784 in state income tax, the SALT deduction recovers approximately $612 in federal taxes, so the true after-federal-benefit cost of Mississippi state income tax is about $2,172. This offset only benefits taxpayers who itemize deductions on federal Schedule A rather than taking the standard deduction.
Total Tax Burden: State Income Tax Is One Piece
State income tax is one component of your total tax burden in Mississippi. Property taxes, local income taxes (in some Mississippi cities and counties), and state and local sales taxes also contribute to your overall cost of living. When comparing Mississippi to other states, evaluate all tax types together rather than income tax in isolation. Use the calculator above to see your combined federal and Mississippi state effective rate at your specific income level.
Sponsored
E-file.com offers the same features as TurboTax and H&R Block at half the price. Free federal filing available if you qualify. 40% cheaper than the big names.
File Your Taxes Now →We earn a commission if you file through this link at no extra cost to you.
Mississippi has a 4.7% flat rate state income tax for 2026. Mississippi is transitioning to a flat income tax rate of 4.7% in 2026 with further reductions planned. Mississippi exempts the first $10,000 of income from state tax. Mississippi does not tax Social Security benefits or retirement income for most residents. The state income tax is calculated separately from federal income tax and is paid through payroll withholding or quarterly estimated payments.
Mississippi has its own state standard deduction separate from the federal standard deduction ($15,750 single, $31,500 MFJ in 2026). For precise Mississippi state deduction amounts, consult the Mississippi Department of Revenue or a state tax professional.
Mississippi's 4.7% flat rate state income tax can be compared to other states using our state tax calculator above. The U.S. average top marginal state income tax rate is approximately 5-6%. Nine states have no income tax at all (Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, Wyoming), while California has the highest at 13.3%.
Mississippi offers state tax credits and deductions that may reduce your state tax liability. Common state credits include earned income credits, child tax credits, and credits for the elderly. Consult the Mississippi Department of Revenue website or a licensed tax professional for credits specific to your situation and income level.
Use the calculator above. Enter your income and MS is pre-selected as your state. The calculator computes your 2026 federal income tax using the One Big Beautiful Bill Act brackets (10%-37%), adds your estimated Mississippi state income tax (4.7% flat rate simplified), and displays your total tax burden, combined effective rate, and annual take-home pay. All calculations happen instantly in your browser.