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Mississippi's Flat 4% Income Tax in 2026

For the 2026 tax year Mississippi applies a single flat rate of 4% to taxable income above $10,000, a drop from the 4.4% rate that applied in 2025, per a Bloomberg Tax Payroll bulletin and the state Department of Revenue. The first $10,000 of taxable income is fully exempt, so the structure behaves like a two-bracket system: 0% on the first $10,000, 4% on the remainder.

Brackets, Deductions, and the First $10,000

Mississippi pairs the flat rate with a standard deduction of $2,300 for single filers ($4,600 for joint filers) and a personal exemption of $6,000 single / $12,000 joint. A single worker therefore pays zero state tax on roughly the first $18,300 of gross wages. The combined result is one of the lowest effective income-tax burdens among states that still levy the tax.

Because there is only one positive bracket, withholding math is simple: subtract deductions and exemptions from gross, subtract the $10,000 exemption, multiply by 4%. For a single filer at $59,127 — the state median household income per the Census 2024 ACS 1-year estimate — taxable income lands near $50,827 after deductions. Subtracting the $10,000 exemption leaves $40,827 taxed at 4%, or approximately $1,633 in annual Mississippi state tax.

The HB 1 Timeline: 4% Today, 3% by 2030

Governor Tate Reeves signed HB 1 in March 2025. The bill sets a glide path: 3.75% in 2027, 3.5% in 2028, 3.25% in 2029, and 3% in 2030. After 2030 further cuts are conditional on the Rainy Day Fund remaining fully funded and revenue triggers being met, with reductions of 0.2%-0.3% per year possible toward full elimination. An ITEP distributional analysis estimates that roughly 77% of the tax cut accrues to the top 20% of households, a figure worth keeping in mind when budgeting year over year.

Retirement Income Is Fully Exempt in Mississippi

Mississippi is among the most retirement-friendly tax regimes in the country. Qualified retirement distributions are not taxed at all at the state level — no matter the dollar amount, filing status, or age (once the plan retirement requirement is met).

What Mississippi Excludes from Taxation

Social Security benefits, pension payments (public and private), 401(k) and 403(b) distributions, traditional and Roth IRA withdrawals, SEP-IRAs, 457(b) plans, and qualified annuity payments are fully exempt from Mississippi income tax. Only early distributions taken before satisfying plan retirement terms are taxable, and wages earned by working retirees remain subject to the normal 4% rate above $10,000. If you are modeling a retirement income stream, our Retirement Calculator pairs well with these assumptions, since Mississippi's treatment means the federal tax number is usually your entire tax bill on pension and 401(k) withdrawals.

The HB 1 Trade-Offs: Grocery Tax Cut, Gas Tax Hike

HB 1 pays for the income-tax reduction partly by shifting revenue to transaction taxes. The grocery sales tax drops from 7% to 5%, a direct benefit for low- and middle-income families who spend a larger share of income on food at home. The state general sales tax remains 7%, among the higher rates in the South since Mississippi has no local sales tax add-ons above a small handful of tourism and municipal surcharges.

Gasoline excise rises from 18.4 cents to 27.5 cents per gallon, phased in during the HB 1 implementation window according to the Tax Foundation 2026 state tax changes report. For a commuter driving 15,000 miles annually at 25 mpg, the added 9.1 cents per gallon costs roughly $55 more per year — small, but it offsets some of the income-tax savings for households that do not own property and spend modestly.

Median Wages and Top Employers in Mississippi

Mississippi's median household income of $59,127 in 2024 is the lowest in the nation, alongside Arkansas, Louisiana, and West Virginia, versus a U.S. median of $83,730 according to the Census ACS 2024 1-year brief. Those lower nominal wages are partly offset by the cost-of-living gap discussed below, and the private-sector employment mix remains surprisingly concentrated in durable-goods manufacturing and defense.

Ingalls Shipbuilding and the Gulf Coast Economy

Ingalls Shipbuilding in Pascagoula is the single largest industrial employer in the state, building Arleigh Burke-class destroyers, San Antonio-class amphibious transports, and Legend-class Coast Guard cutters for the U.S. Navy and Coast Guard. Combined with Keesler Air Force Base in Biloxi, Stennis Space Center in Hancock County, and the gaming corridor from Biloxi to Bay St. Louis, the Gulf Coast provides the highest concentration of skilled trades and engineering roles in Mississippi.

Nissan Canton and Central Mississippi Manufacturing

Nissan's Canton assembly plant anchors central Mississippi's manufacturing base, producing Altima sedans, Frontier trucks, and Titan pickups, with a supplier network stretching across Madison, Rankin, and Hinds counties. Toyota Mississippi in Blue Springs (Corolla production) and the University of Mississippi Medical Center in Jackson — which employs roughly 10,000 people and ranks 67th nationally — round out the central-Mississippi private-sector landscape.

Healthcare, Retail, and the Public Sector

Walmart is the largest single employer in Mississippi with approximately 25,200 workers across stores and distribution centers, per the Largest Employer by State 2026 ranking. McKesson and McLane operate major distribution operations, and the state itself (education, corrections, and health services) remains a top-three employer alongside the federal government presence at military and NASA facilities.

Sample Paycheck: $59,127 Median Single Filer

Consider a single Mississippi worker earning the state median of $59,127 annually, paid biweekly ($2,274.12 per period). Federal income tax after the 2026 standard deduction of $16,100 consumes roughly $4,730 annually, FICA (Social Security 6.2% plus Medicare 1.45%) takes $4,523, and Mississippi state tax at the flat 4% rate on taxable income above $10,000 removes about $1,633. Total annual deductions land near $10,886, producing approximately $48,241 in annual take-home pay — roughly 81.6% of gross, one of the highest retention ratios in the South.

Biweekly the math works out to about $1,856 net per paycheck before 401(k), health premium, or HSA contributions. A $300 biweekly pre-tax 401(k) contribution would reduce federal tax by roughly $36 and Mississippi tax by $12, producing a net paycheck reduction of $252 rather than the full $300 — a modest in-state contribution boost compared to high-tax states. For the federal side of the FICA calculation, our national Paycheck Calculator shows the full breakdown of Social Security, Medicare, and federal withholding mechanics.

Cost of Living Advantage: Jackson, Gulfport, and Beyond

Mississippi posts the lowest composite cost-of-living index in the United States at approximately 84.8, roughly 15% below the national average, driven primarily by housing. Rent, groceries outside the tax treatment, utilities, and healthcare services are all measurably cheaper than in neighboring southern metros.

Housing and Rent by Metro

Jackson's median home sale price recently sat near $108,000, per Redfin Jackson market data, well below the state average because Jackson's inventory skews older. Madison, Brandon, and Flowood in the outer Jackson metro sit around $250,000-$280,000 for newer construction. Gulf Coast communities trade at $200,000-$220,000 medians, Oxford (home to Ole Miss) sits near $250,000 on university demand, and rural counties frequently feature sub-$120,000 median sale prices.

Average rent in Jackson is $1,100 across apartment types, with one-bedroom units around $1,000 and two-bedrooms at $1,137 according to RentCafe Jackson rent data. The Mississippi Home Corporation Smart Solution program offers up to 3% of the purchase price as down-payment assistance for borrowers with household income under $95,000 and a minimum 640 credit score, financed through Mortgage Revenue Bonds. If you are modeling a purchase, our Mississippi Mortgage Calculator and Mississippi Affordability Calculator handle property tax (0.79% statewide effective rate) and insurance costs typical of coastal vs. inland counties.

Daily Expenses and Sales Tax

Groceries dropped to a 5% sales tax in 2026 under HB 1, one of the few remaining states that taxes food at all but with a meaningful discount from the 7% general rate. Restaurant meals, clothing, and non-food retail still carry the full 7% sales tax. Utilities average 10-15% below national norms except on the Gulf Coast, where summer cooling loads and coastal insurance push combined housing costs above the state median. A single adult covering rent, groceries, transportation, and healthcare in Jackson can meet a monthly budget near $1,954.

How Mississippi Compares to Its Neighbors

Tennessee has no state income tax, saving a Mississippi worker earning $59,127 roughly $1,633 annually — real but usually offset by Tennessee's higher combined sales tax averaging 9.5%-10%. Alabama's top rate of 5% with narrower exemption thresholds produces a slightly higher burden on median earners despite the lower income floor. Louisiana's top 4.25% with federal-tax deductibility produces similar effective rates once the federal offset is applied. Arkansas at a 4.9% top rate sits just above Mississippi.

Where Mississippi clearly wins is total tax plus cost of living: no state taxes any retirement income, the flat 4% is among the lowest active income-tax rates nationally, grocery tax is cheaper than at any point in the last half century, and housing is the most affordable in the country. For cross-border commuters, Mississippi grants a credit for taxes paid to other states — critical if you work in Memphis or New Orleans but live in DeSoto or Hancock counties.

Working Smart in Mississippi in 2026

Three planning moves matter most for Mississippi workers under the new tax regime. First, maximize pre-tax contributions to 401(k), 403(b), and HSA accounts while the state rate is still 4%; the in-state tax savings per contribution will shrink as HB 1 steps the rate down to 3% by 2030, so front-loaded savings are worth more today. Second, use the Mississippi Affordable College Savings (MACS) 529 plan — deductions up to $10,000 per beneficiary ($20,000 joint) are among the most generous in the nation, saving $400 in state tax per $10,000 at the 2026 rate.

Third, for workers approaching retirement, keep in mind that converting traditional IRA to Roth while still in Mississippi does not trigger state tax on the conversion amount itself if structured as a qualified distribution — a significant advantage over states that tax the conversion. Whether you are calculating withholding, planning a move between Jackson and the Gulf Coast, or comparing a remote offer against a Tennessee or Alabama alternative, the Mississippi financial calculators hub bundles the state-specific tools for a full picture of your take-home, housing, and retirement math.