Section 125 Plan in Mississippi: The 2026 Employer Guide

• Mississippi employers recapture $91 to $136 per enrolled employee per month in FICA taxes, based on typical benefit elections between $400 and $600 per month (IRS FICA rate: 7.65% employer-side).
• Mississippi's individual income tax rate has declined from a prior 5% top rate to approximately 4.0% in 2026 under the Mississippi Tax Freedom Act (HB 531, 2022) and subsequent legislation, with the rate scheduled to continue declining under Miss. Code Ann. §27-7-5.
• Ingalls Shipbuilding, a Huntington Ingalls Industries (HII) division, employs approximately 11,500 workers in Pascagoula, making it the largest private employer in Mississippi.
• Nissan Motor Manufacturing Mississippi LLC in Canton employs approximately 4,600 workers, and Toyota Motor Manufacturing Mississippi in Blue Springs employs approximately 2,000 workers, together representing one of the largest automotive manufacturing concentrations in the Southeast.
• Mississippi employees in the 22% federal bracket electing $520 per month pre-tax take home roughly $175 more per month after federal income tax, Mississippi state income tax, and FICA savings combine.

Before an Ingalls Shipbuilding Marine Systems engineer in Pascagoula takes home $188 more a month on the same salary, he does one thing: he elects $560 in benefits pre-tax through his employer's Section 125 cafeteria plan. Federal income tax at 22%, Mississippi state income tax at approximately 4.0% under the Tax Freedom Act, and FICA at 7.65% all come off that $560 before his W-2 is calculated. His employer recaptures $560 x 12 x 7.65% = $514 in FICA savings on him alone, before the first renewal. Mississippi levies no city or county income tax in Pascagoula, Jackson, Biloxi, or anywhere else in the state, so the savings model never requires a fourth calculation.

How much does a Mississippi employer actually save on payroll with a §125 plan?

A Mississippi employer with 60 employees each electing $520 per month in pre-tax benefits saves $28,699 per year in employer FICA taxes alone (60 x $520 x 12 x 7.65%). That calculation uses only the employer's 7.65% FICA share on pre-tax elections. It does not count the federal income tax savings employees receive, the Mississippi state income tax savings employees receive, or any reduction in state unemployment insurance premiums on lower reported taxable wages. For an employer paying a Benecor admin fee of $35 per enrolled employee per month, the FICA recapture on a $520 election outpaces the fee when monthly elections exceed $458 per employee ($35 divided by 0.0765 = $458), which describes most Mississippi defense, automotive, and healthcare elections above the individual-only tier.

The paycheck comparison below uses an Ingalls Shipbuilding Marine Systems engineer earning $88,000 annual salary with a $560 monthly pre-tax election. Numbers are calculated using the 22% federal bracket, approximately 4.0% Mississippi income tax rate for 2026, and 7.65% FICA on each biweekly paycheck before and after the election.

"Our welders and pipefitters earn solid trade wages but were paying full taxes on every dollar of their health premium. The §125 enrollment took less than a week. The savings showed up on the next paycheck."

How does Mississippi's income tax structure affect a §125 plan?

Mississippi's individual income tax is on a legislated phasedown under the Mississippi Tax Freedom Act (HB 531, 2022). The prior 5% top rate has been reduced in annual steps, reaching approximately 4.0% for income above $10,000 in 2026, with further reductions scheduled based on state revenue performance under Miss. Code Ann. §27-7-5. Most Ingalls Shipbuilding engineers, Nissan Canton production supervisors, and UMMC nursing staff earning above the top bracket threshold face the current applicable rate on the portion of their wages subject to it. Workers in food processing and Gulf Coast hospitality roles at lower wage levels face proportionally smaller state income tax savings through §125, making the FICA layer even more prominent for those employers. In all cases, a §125 election reduces Mississippi taxable wages by the elected amount, delivering a proportional state income tax benefit at each employee's applicable bracket.

Mississippi Tax Freedom Act: the state income tax phasedown

The Mississippi Tax Freedom Act, enacted as HB 531 and signed by Governor Tate Reeves in 2022, eliminated the 4% income tax bracket and set Mississippi on a path to reduce and eventually eliminate its income tax under Miss. Code Ann. §27-7-5. The top rate applicable to most working Mississippians has declined each year from the prior 5% maximum. For employers evaluating §125 today, the declining state income tax rate does not reduce the value of a §125 plan. Instead, it shifts the ROI composition: as the state income tax layer shrinks, the FICA recapture layer at 7.65% becomes the larger share of the combined three-layer benefit. An Ingalls Shipbuilding engineer electing $560 per month saves approximately $22.40 per month from Mississippi state income tax at the 4.0% rate, while saving approximately $42.84 per month from FICA and approximately $123.20 per month from federal income tax. The FICA and federal income tax layers together account for more than 87% of the total monthly tax saving regardless of where Mississippi's state rate lands.

No city or county income tax anywhere in Mississippi

Mississippi levies no local income tax on wages in any city or county in the state. Jackson, Gulfport, Biloxi, Hattiesburg, Meridian, Tupelo, Southaven, Columbus, Pascagoula, and every other Mississippi municipality impose zero local income tax on employee wages. This makes Mississippi one of the simplest §125 compliance environments in the Southeast. Employers in Kentucky must resolve occupational license tax rates in Louisville, Lexington, and dozens of smaller cities. Employers in Missouri must confirm Kansas City and St. Louis wage tax treatment for each employee. In Mississippi, the savings model is three layers and three layers only: federal income tax, Mississippi state income tax under Miss. Code Ann. §27-7-5, and FICA. There is no fourth local layer to configure, document, or reconcile at year-end, from the Ingalls Shipbuilding complex in Pascagoula to the Nissan Canton assembly plant to the casino floors of Biloxi.

FICA recapture: the §125 ROI for every Mississippi employer

The employer-side FICA calculation is straightforward. A Pascagoula employer with 80 Ingalls Shipbuilding subcontract employees each electing $560 per month saves 80 x $560 x 12 x 7.65% = $41,126 per year in employer FICA. That employer pays Benecor 80 x $35 x 12 = $33,600 per year in admin fees, for a net FICA recapture after fees of $7,526 per year. This calculation does not include the federal income tax benefit delivered to the 80 employees or the Mississippi state income tax savings. The combined employee and employer tax benefit is substantially larger than the FICA recapture line alone.

What Mississippi employees actually get with a §125 plan

Every Benecor Health §125 plan includes a benefit stack of supplemental health services at $0 employee cost. Mississippi employees enrolled in the plan receive unlimited virtual urgent care, unlimited primary care visits, unlimited mental health counseling, access to more than 800 generic medications, and dental, vision, lab, and prescription discount networks at no additional charge. The market value of these supplemental benefits is roughly $5,630 per enrolled employee per year based on average healthcare utilization. For a Nissan Canton production associate paying $440 per month in pre-tax health premiums, the combination of $148 per month in tax savings and $5,630 per year in supplemental benefit value represents a material improvement in total compensation without a wage increase.

Mississippi industries with the highest §125 ROI

Mississippi's economy is concentrated in defense manufacturing and shipbuilding, automotive assembly, food processing, healthcare, gaming and hospitality, energy, and agriculture. Each sector has distinct wage distributions, benefit election patterns, and turnover dynamics that affect §125 plan design. The highest FICA recapture per employer dollar occurs in sectors where average wages exceed $60,000 and elections consistently exceed the $458 monthly breakeven. Defense, automotive, and senior healthcare roles meet this threshold. Food processing and hospitality generate high headcount with moderate per-employee FICA recapture but still deliver meaningful employee income tax benefits, especially for workforces with high benefit utilization needs.

Defense and shipbuilding: Ingalls Shipbuilding and defense contractors

Ingalls Shipbuilding, a division of Huntington Ingalls Industries (HII), operates its primary shipbuilding and ship repair facility in Pascagoula, Mississippi, the largest shipyard on the U.S. Gulf Coast. The Pascagoula facility employs approximately 11,500 workers, making Ingalls Shipbuilding the single largest private employer in Mississippi. The workforce spans naval architects, marine systems engineers, structural engineers, welders, pipefitters, electricians, painters, riggers, and administrative staff. An Ingalls Marine Systems engineer at $88,000 electing $560 per month saves approximately $188 per month, and a skilled trades pipefitter at $72,000 electing $500 per month saves approximately $168 per month. The Pascagoula defense corridor also includes Raytheon Technologies, L3Harris, and dozens of HII subcontractors employing additional thousands of W-2 workers in electronics, systems integration, and logistics roles. All are fully eligible for §125 and benefit from the same three-layer Mississippi savings model.

Automotive manufacturing: Nissan Canton and Toyota Blue Springs

Nissan Motor Manufacturing Mississippi LLC, located in Canton approximately 20 miles north of Jackson, operates one of Nissan's largest North American assembly plants. The Canton facility employs approximately 4,600 W-2 workers producing Nissan Frontier, Nissan Titan, and other models, including production associates, skilled trades workers, manufacturing engineers, quality assurance technicians, and logistics staff. Toyota Motor Manufacturing Mississippi, Inc., located in Blue Springs in Lee County near Corinth in Northeast Mississippi, employs approximately 2,000 W-2 workers producing the Toyota Corolla and has undergone significant capacity investments. A Nissan Canton production supervisor at $68,000 electing $490 per month saves approximately $164 per month in combined taxes, and a Toyota Blue Springs assembly technician at $56,000 electing $440 per month saves roughly $148 per month. Both facilities draw supplier networks employing additional thousands of W-2 workers in the Canton and Lee County areas, extending the §125 opportunity well beyond the primary employers.

Food processing: Sanderson Farms, Tyson Foods, and Cal-Maine

Sanderson Farms, one of the largest poultry processing companies in the United States, was headquartered in Laurel, Mississippi, and operates processing facilities throughout the state with thousands of W-2 employees in processing, logistics, and corporate roles. Cal-Maine Foods, headquartered in Ridgeland near Jackson, is the largest shell egg producer in the United States and employs several thousand W-2 workers at its Mississippi facilities and regional farm operations. Tyson Foods operates processing facilities in Mississippi, including locations in the central and southern part of the state. Food processing employers typically combine corporate staff earning above $70,000 with production workers earning $38,000 to $52,000, creating a two-tier §125 opportunity. A Sanderson Farms food scientist at $78,000 electing $530 per month saves approximately $178 per month, while a production line supervisor at $48,000 electing $390 per month saves roughly $131 per month. Bilingual enrollment materials in English and Spanish are standard for Mississippi poultry and food processing employers given the significant Spanish-speaking component of processing workforces in Laurel, Forest, Hazlehurst, and surrounding communities.

Healthcare: UMMC, Memorial Gulfport, and Forrest General

The University of Mississippi Medical Center (UMMC) in Jackson is Mississippi's only academic medical center and the state's largest tertiary care hospital. UMMC employs approximately 10,000 faculty, staff, clinical workers, residents, and support personnel, making it one of the largest employers in Central Mississippi alongside state government. Memorial Hospital at Gulfport is the largest hospital on the Gulf Coast and employs several thousand healthcare workers in nursing, allied health, and administrative roles. Forrest General Hospital in Hattiesburg serves as the regional hospital for South Mississippi and employs thousands of additional W-2 healthcare workers. Together, Mississippi's major health systems represent tens of thousands of W-2 employees in high-benefit-utilization roles with elections typically ranging from $450 to $550 per month. A UMMC registered nurse at $72,000 electing $500 per month saves approximately $168 per month, and the employer recaptures $500 × 12 × 7.65% = $459 per year per enrolled nurse.

Gaming and hospitality: Gulf Coast casino resorts

Mississippi's Gulf Coast gaming corridor stretches from Bay St. Louis through Biloxi to Pascagoula, housing one of the most concentrated casino resort markets in the southeastern United States. Beau Rivage Resort and Casino, operated by MGM Resorts International in Biloxi, is one of the largest casino resorts in the Southeast with thousands of W-2 employees. Golden Nugget Biloxi, Hard Rock Hotel and Casino Biloxi, Island View Casino Resort, Scarlet Pearl Casino Resort, and Treasure Bay Casino are among the major Gulf Coast gaming employers. The river boat and land-based casino market extends inland with additional operations in Tunica in Northwest Mississippi, historically one of the nation's largest gaming markets. Gulf Coast casino employers have large hourly workforces of dealers, hotel and food service staff, security personnel, and entertainment workers with elections typically ranging from $330 to $420 per month. A Gulf Coast casino dealer at $44,000 electing $360 per month saves approximately $121 per month in combined taxes, and the employer recaptures $360 × 12 × 7.65% = $330 per year per enrolled worker.

Jackson, Pascagoula, Gulf Coast, and secondary Mississippi markets

Mississippi's employer base is distributed across four primary geographic zones. The Jackson metro and Central Mississippi house state government, UMMC, Nissan Canton, Baptist Health System of Mississippi, and corporate employers. The Gulf Coast corridor from Gulfport to Pascagoula anchors Ingalls Shipbuilding, the casino resort industry, Memorial Hospital, and oil and gas support operations. Northeast Mississippi, centered on Tupelo and Corinth, serves Toyota Blue Springs, furniture manufacturing, and regional healthcare employers. The Mississippi Delta and the Southwest corridor serve agriculture, poultry processing, and distribution. All Mississippi markets share the same state income tax treatment under Miss. Code Ann. §27-7-5 and the same absence of local income tax, so §125 plan documents and payroll configurations are identical across the state.

Jackson metro and Central Mississippi

Jackson is Mississippi's state capital and largest city, home to state government, UMMC, Baptist Health System, Nissan Canton (20 miles north), Entergy Mississippi, Ergon Inc., and dozens of corporate headquarters and regional offices. State government employs tens of thousands of W-2 workers across Jackson and Rankin County agencies. Entergy Mississippi, the electric utility subsidiary of Entergy Corporation, employs several thousand W-2 workers in Jackson and throughout the state. Viking Range Corporation, the premium kitchen appliance manufacturer headquartered in Greenwood in the Delta, employs manufacturing and corporate workers eligible for §125. The Jackson metro's wage distribution spans state employees earning $40,000 to $65,000, UMMC clinical staff earning $55,000 to $95,000, and Nissan Corporate staff earning $70,000 to $120,000. Elections in the Jackson metro average $420 to $540 per month depending on industry.

Gulf Coast: Gulfport, Biloxi, and Pascagoula

The Mississippi Gulf Coast is the state's most economically diverse region, combining defense manufacturing, gaming, oil and gas support services, healthcare, and tourism in a 60-mile coastal corridor. Pascagoula, anchored by the Ingalls Shipbuilding complex, is Mississippi's most concentrated industrial employer market. Gulfport is home to the Port of Gulfport, Memorial Hospital, and major logistics operations for national retailers. Biloxi anchors the Gulf Coast casino resort market with MGM Resorts, Golden Nugget, Hard Rock, and additional casino properties. The Gulf Coast has a high concentration of skilled trades workers in shipbuilding and construction earning $60,000 to $90,000 and hospitality workers earning $35,000 to $55,000, creating a broad election range from $350 to $580 per month across the same geographic market.

Tupelo, Hattiesburg, Columbus, and secondary markets

Tupelo in Northeast Mississippi serves as the regional commercial and healthcare center for Lee County and is home to Toyota Blue Springs' supplier network, CREATE, North Mississippi Health Services, and a significant furniture manufacturing cluster. Hattiesburg serves South Mississippi with Forrest General Hospital, the University of Southern Mississippi (approximately 3,000 employees), and regional distribution and logistics operations. Columbus Air Force Base is the second-largest employer in Lowndes County and brings thousands of military and DoD civilian W-2 employees to the East Mississippi market. Elections in Tupelo and Columbus average $400 to $480 per month, reflecting the mix of manufacturing and healthcare wages. Even at $400 per month, a Mississippi employer recaptures $400 × 12 × 7.65% = $367 per year per enrolled worker, and the employee gains $134 per month in combined tax savings on the first post-enrollment paycheck.

Mississippi compliance: tax conformity, plan documents, and ERISA

Mississippi §125 compliance involves three primary requirements: a written plan document and summary plan description meeting IRS and ERISA standards, payroll deduction codes that correctly reduce W-2 Boxes 1, 3, and 5, and underlying benefit products issued by carriers licensed in Mississippi. Mississippi itself imposes no state-specific plan document requirements, no separate plan registration with the Mississippi Department of Revenue (DOR), and no annual state-level filing obligations for the §125 plan wrapper. Mississippi employers subject to ERISA file IRS Form 5500 at the plan level when applicable under standard federal thresholds, without additional Mississippi state filings.

Mississippi Department of Revenue and §125 conformity

Mississippi conforms to federal adjusted gross income as the starting point for individual income tax computation under Miss. Code Ann. §27-7-17. Amounts excluded from federal wages through a §125 cafeteria plan election are automatically excluded from Mississippi taxable wages. Mississippi employers do not need to make a separate adjustment on payroll tax forms for the Mississippi state income tax savings associated with §125 elections. As Mississippi's income tax rate continues to decline under the Tax Freedom Act, the conformity mechanism continues to apply: the same single deduction code that reduces W-2 Box 1 wages for the federal election simultaneously reduces Mississippi taxable wages. The Mississippi DOR has not issued guidance specific to §125 plans beyond its general federal conformity rule. For Mississippi employers from the Ingalls Shipbuilding complex to Toyota Blue Springs to the Gulf Coast casino resorts, the compliance structure is straightforward and requires no state-specific customization.

The non-compliant §125 market: Mississippi employers must verify their plan

A significant portion of Mississippi employers operating pre-tax payroll deductions do so without a written plan document, without an adoption agreement, or with plan documents that have not been updated since original enrollment. A §125 plan without a current written plan document fails to meet the requirements of IRS Treas. Reg. §1.125-1(c), which requires the plan to be in writing before any elections take effect. Mississippi employers operating informal pre-tax deductions expose themselves to IRS reclassification of all pre-tax elections as after-tax compensation, resulting in FICA and income tax liability plus penalties for all open tax years. Defense subcontractors in Pascagoula, automotive suppliers near Canton, and food processing employers in the poultry corridor are particularly common in the Mississippi non-compliant market due to long-standing but undocumented pre-tax arrangements. Benecor confirms plan document compliance as part of every Mississippi implementation.

ACA employer mandate in Mississippi

Mississippi employers with 50 or more full-time equivalent employees are subject to the ACA employer mandate under IRS Code §4980H, requiring them to offer minimum essential coverage to full-time employees or face potential excise tax penalties. A §125 cafeteria plan does not substitute for ACA-compliant minimum essential coverage but works in combination with it: employers use the §125 plan to make ACA-compliant premiums pre-tax for employees, reducing both the employer's FICA obligation and the employee's net cost of required coverage. Mississippi did not expand Medicaid under the ACA and remains one of the few non-expansion states. Mississippi's non-expansion status means more lower-income employees depend on employer-sponsored coverage, making §125 elections more common and more valuable for hourly workers who might otherwise face the full after-tax cost of individual insurance.

Launching a §125 plan in Mississippi: the 5-week timeline

A Mississippi §125 plan goes from signed engagement to first pre-tax payroll in five weeks. Week one covers plan design and document drafting, including the adoption agreement, summary plan description, and election change event policy. Week two covers employee enrollment communications in English and Spanish for employers with bilingual workforces in Sanderson Farms, Tyson Foods, and poultry processing plants statewide. Week three covers payroll deduction code setup and test payroll confirmation across all Mississippi employee locations. Weeks four and five cover final enrollment, payroll go-live, and the first compliance report comparing actual FICA recapture against the signed savings estimate. Mississippi's absence of local income tax means payroll configuration does not require a city-by-city rate lookup for Jackson, Pascagoula, Gulfport, Biloxi, and Tupelo employees, which eliminates one common source of implementation delay seen in Ohio, Kentucky, and Pennsylvania.