Mississippi Remote Employee Tax Withholding: Flat 3% Tax

Mississippi is a low-tax state in the South, having moved to a flat 3.00% individual income tax for 2025 — down from 4.40% in 2024 and 5.00% in 2023 — with plans to eliminate the income tax entirely by 2030 if annual revenue triggers are met. Mississippi has no reciprocity agreements with neighboring states, no state minimum wage above the federal $7.25, and a low SUI wage base of $7,000 with a low new-employer rate of approximately 1.0%. The state's tax structure is designed to attract business investment and remote workers, and the planned income tax elimination is among the most aggressive tax-cut trajectories in the country. This guide walks through the Mississippi tax landscape, residency rules, withholding for residents and non-residents, the absence of reciprocity, SUI through the Mississippi Department of Employment Security (MDES), out-of-state employer obligations, the credit for taxes paid to other states, Mississippi-specific wage laws, recent developments including the tax elimination trajectory, and common payroll mistakes.

The Mississippi Tax Landscape

Mississippi levies a flat individual income tax at 3.00% on taxable income for 2025, under the Mississippi Income Tax Law (Mississippi Code Chapter 7, Title 27). The 3.00% rate is the product of the 2022 Mississippi Tax Elimination Act, which reduced the rate from 4.00% (2022) to 4.40% (2023) — actually a rate increase due to bracket consolidation — then to 4.40% (2024) and 3.00% (2025). The Tax Elimination Act provides for further annual reductions of 0.50 percentage points each year that annual revenue triggers are met, with the goal of eliminating the income tax entirely by 2030. The flat rate applies regardless of filing status or income level, and Mississippi does not have graduated brackets, having eliminated them in 2022. The Mississippi Department of Revenue (MS DOR) administers the income tax and publishes annual guidance on rates.

For payroll purposes, Mississippi imposes two employer-side obligations: state income tax withholding at 3.00% on wages, and State Unemployment Insurance (SUI) paid by the employer on the first $7,000 of wages per employee per year. Mississippi does not have a state disability insurance program, no state paid family leave program, no local income tax, and no payroll tax outside the standard SUI. The MS DOR administers income tax withholding, and the MDES administers SUI. Mississippi's tax structure is among the simplest in the country, with low rates, low wage bases, and minimal employer payroll costs, making the state attractive for out-of-state employers hiring remote workers. The combined top marginal rate of 3.00% is among the lowest in the country for states that levy an income tax, exceeded in lowness only by states such as North Dakota (top 2.50%) and Pennsylvania (flat 3.07%).

Mississippi Residency Rules

Mississippi residency is determined under two tests: domicile and statutory residency, both codified in the Mississippi Income Tax Law. Domicile is the place where an individual has their true, fixed, and permanent home and to which they intend to return whenever absent. Once established, domicile persists until the individual establishes a new domicile through physical presence in a new jurisdiction combined with intent to remain there indefinitely. The MS DOR applies a multi-factor domicile test that examines family location, business activities, time spent inside and outside Mississippi, real and tangible property holdings, and persistence of Mississippi ties such as voter registration, driver's license, vehicle registration, and banking relationships. Mississippi residents are taxed on worldwide income regardless of where it is earned.

Mississippi statutory residency applies when an individual maintains a permanent place of abode in Mississippi and spends 183 or more days of the tax year inside Mississippi. The 183-day threshold is the standard bright-line test, and Mississippi counts any part of a day as a full day except for transit days. A part-year resident who established or abandoned Mississippi domicile during the tax year files Form 80-105 and reports income as a resident for the resident period and as a non-resident for the non-resident period using Schedule N. Mississippi does not have a special safe-harbor rule like New York's 30-day rule or California's 549-day rule, so any individual with significant Mississippi presence should track day counts carefully. The MS DOR is generally less aggressive on residency audits than higher-tax states like New York or California, but residency audits do occur and the burden of proof is on the taxpayer. Mississippi's low tax rate also reduces the financial stakes of residency disputes compared to high-tax states.

Mississippi Withholding for Residents

Mississippi residents are subject to Mississippi income tax on all income regardless of source, and employers must withhold Mississippi income tax from wages paid to Mississippi residents. The withholding calculation uses Form 83-100, the Mississippi Employee's Withholding Exemption Certificate, which is separate from the federal Form W-4. The 83-100 collects the employee's withholding exemptions and additional withholding amounts. For 2025 the Mississippi standard deduction is $10,000 for single filers and $12,000 for married filing jointly, indexed for inflation, which reduces the taxable wage base before the 3.00% rate applies. Mississippi also offers personal exemptions of $6,000 for single filers and $12,000 for married filing jointly, which further reduce taxable income, and dependents add $1,500 per dependent.

The Mississippi withholding formula is straightforward: subtract the standard deduction and personal exemptions (multiplied by the number of claimed exemptions) from gross wages, then multiply the result by 3.00%. For an employee claiming one exemption on $50,000 annual wages, withholding is approximately $930 per year ($50,000 minus $10,000 standard deduction minus $6,000 personal exemption, times 3.00%). Supplemental wages (bonuses, commissions, and similar payments) are subject to Mississippi supplemental withholding at 3.00% with no exemption adjustment, per the MS DOR withholding guide. Employees who have non-wage income or who expect to owe more than their withholding can request additional withholding on Form 83-100. Employees can also claim exemption from Mississippi withholding on Form 83-100 if they had no Mississippi income tax liability in the prior year and expect none in the current year, which is rare for wage earners but more common in Mississippi than in high-tax states given the high exemption thresholds.

Mississippi Withholding for Non-Residents

Mississippi non-residents are subject to Mississippi income tax only on Mississippi-source income. For employees, Mississippi-source income means wages earned while physically performing services in Mississippi. A non-resident employee who works entirely outside Mississippi for a Mississippi employer has no Mississippi-source wages and no Mississippi withholding obligation. Non-resident withholding is computed by allocating the employee's annual wages across states based on days worked in each state, then applying Mississippi withholding to the Mississippi-allocated portion. Mississippi does not enforce a convenience rule for non-resident employees of Mississippi employers who work remotely outside Mississippi, so a non-resident working remotely from another state has no Mississippi-source wages.

Non-resident employees file Form 80-205, the Mississippi Nonresident Income Tax Return, and Schedule N to report Mississippi-source income and compute the non-resident tax. The non-resident tax is calculated by taking the Mississippi tax on total income (as if the employee were a resident) and multiplying by the ratio of Mississippi-source income to total income. Non-resident employees who expect to owe less Mississippi tax than the withholding amount can file Form 89-350 with the employer to request an exemption certificate, which reduces or eliminates Mississippi withholding based on projected Mississippi liability. Mississippi also requires withholding on certain non-wage payments to non-residents, including gambling winnings over $5,000 and certain lottery winnings, per the MS DOR non-resident withholding rules. Because Mississippi has no reciprocity agreements, non-residents who work in Mississippi always face Mississippi withholding on Mississippi-source wages unless they qualify for the Form 89-350 exemption certificate.

No Mississippi Reciprocity

Mississippi has no income tax reciprocity agreements with any other state, per the Mississippi Department of Revenue. This means residents of neighboring states who commute to Mississippi for work are subject to Mississippi income tax on their Mississippi-source wages, and Mississippi residents who work in neighboring states are subject to the work state's tax with a credit claimed on the Mississippi return. Tennessee has no wage income tax, so Tennessee residents who work in Mississippi are subject to Mississippi income tax on their Mississippi wages with no Tennessee offset. Louisiana (top 3.00% flat for 2025), Arkansas (top 3.90% for 2025), and Alabama (top 5.00% for 2025) all tax their residents on worldwide income and provide credits for taxes paid to Mississippi, producing the standard dual-state tax friction.

Because Mississippi has no reciprocity, cross-border commuters face the burden of filing two state tax returns each year. A Mississippi resident who commutes to Louisiana for work, for example, must file a Louisiana non-resident return reporting Louisiana wages and a Mississippi resident return reporting worldwide income, claiming a credit on Schedule N for the Louisiana tax paid. The credit is limited to the Mississippi tax attributable to the same wages, so the Mississippi resident does not bear the full Louisiana rate but does bear any rate differential. For Tennessee residents who work in Mississippi, there is no offset because Tennessee does not tax wages, so the employee bears the full 3.00% Mississippi rate. SUI is paid to the state where the work is performed, so a Louisiana resident working in Mississippi has Mississippi SUI paid by the Mississippi employer.

Mississippi SUI (MDES)

Mississippi State Unemployment Insurance is administered by the Mississippi Department of Employment Security (MDES) under the Mississippi Employment Security Law (Mississippi Code Chapter 351). The new employer SUI rate is approximately 1.0% for most non-construction industries, plus a 0.20% contingency assessment, producing an effective rate of approximately 1.20% for new employers. The SUI wage base is $7,000 per employee per year for 2025, which is the federal minimum and unchanged for many years. The maximum new-employer per-employee contribution is approximately $84 (1.20% × $7,000), which is among the lowest per-employee SUI costs in the country. After the initial period (typically three years), the rate becomes experience-rated based on the employer's benefit charge ratio and taxable payroll, with rates ranging from 0.20% to 5.40% under the standard tax schedule, plus the 0.20% contingency assessment.

Employers register for an MDES unemployment tax account through the MDES online system, which is separate from the MS DOR income tax withholding registration. Quarterly wage reports are due April 30, July 31, October 31, and January 31, with both wage detail and tax payment submitted on the same form. Late or missing returns generate penalties, and MDES actively audits employers who fail to register or file. Mississippi also requires new-hire reporting to the Mississippi State Directory of New Hires within 15 calendar days of hire, which is used for child support enforcement and other state purposes. Mississippi's low SUI cost is one factor that makes the state attractive for employers considering hiring remote workers from the state, and the low per-employee SUI cost should be factored into multi-state workforce planning.

Out-of-State Employer With a Mississippi Remote Employee

An out-of-state employer that hires a Mississippi remote employee creates Mississippi payroll tax nexus and must register with both the Mississippi Department of Revenue for an income tax withholding account and the MDES for an SUI account. The two registrations are separate and produce separate account account numbers. The MS DOR withholding registration is completed online through the Mississippi Taxpayer Access Point (TAP) system, and the MDES SUI registration is completed through the MDES online system. Both registrations typically take five to ten business days to process. Foreign-entity registration with the Mississippi Secretary of State may also be required for corporations and LLCs transacting business in Mississippi, although Mississippi has relatively permissive foreign-entity rules.

Once registered, the out-of-state employer must withhold Mississippi income tax at the 3.00% flat rate from the remote employee's wages, file quarterly withholding returns through TAP, and file annual Form 89-140 reconciliation with the MS DOR by January 31. The employer must also pay SUI on the first $7,000 of the Mississippi employee's wages, file quarterly wage reports through the MDES system, and report new hires to the Mississippi State Directory of New Hires. The employee must complete Form 83-100 for state withholding calculations. The employer must also secure Mississippi workers' compensation coverage, comply with the Mississippi Wage Payment Law, and comply with Mississippi equal pay laws. Mississippi does not have a state paid sick leave requirement, but the federal Family and Medical Leave Act (FMLA) applies to covered employers.

Mississippi Resident Working for an Out-of-State Employer

A Mississippi resident who works remotely for an out-of-state employer is still subject to Mississippi income tax on all wages, regardless of where the employer is located. Mississippi taxes its residents on worldwide income. The out-of-state employer should register with the MS DOR and withhold Mississippi income tax from the resident employee's wages, although many out-of-state employers fail to do this initially and the resident must make estimated tax payments to cover the Mississippi liability. If the work state also taxes the resident (because the work state does not have reciprocity with Mississippi — and no state has reciprocity with Mississippi — and sources wages to the employer's state), Mississippi provides a credit for taxes paid to other states on Form 80-108, Schedule N.

The credit is calculated as the lesser of the tax paid to the other state on the out-of-state wages or the Mississippi tax attributable to those same wages. Because Mississippi applies a flat 3.00% rate, the credit calculation is straightforward, but the credit cannot exceed the Mississippi tax on the out-of-state income. For high-tax work states like California (13.3% top rate) or New York (10.9% top rate), the Mississippi credit is capped at 3.00% of the out-of-state wages, and the Mississippi resident bears the rate differential. For low-tax work states like Tennessee (no wage income tax), the Mississippi resident bears the full Mississippi rate. Mississippi does not enforce a convenience-of-the-employer rule, so a Mississippi resident who works remotely from Mississippi for a New York or Connecticut convenience-rule state will be taxed by Mississippi on the wages and may also be taxed by the work state, with the credit mechanism applying. The low Mississippi rate means the credit will typically offset a substantial portion of the work-state tax, but the resident may still bear significant double-tax exposure for high-tax convenience-rule states.

Mississippi-Specific Wage Laws

The Mississippi Wage Payment Law (Mississippi Code Chapter 3, Title 25) governs the timing and method of wage payment for Mississippi employees, although the law is relatively sparse compared to the wage payment laws of more employee-friendly states. Mississippi does not have a state minimum wage and follows the federal Fair Labor Standards Act (FLSA) minimum wage of $7.25 per hour for 2025, per the U.S. Department of Labor. Mississippi is one of five states without a state minimum wage statute, and there are no local minimum wage ordinances in the state because Mississippi law preempts local wage ordinances. The federal overtime requirement of 1.5 times the regular rate for hours over 40 in a workweek applies under the FLSA.

Mississippi does not have a state paid sick leave requirement, no state paid family leave requirement, and no state-mandated meal or rest breaks. Employers must comply with federal requirements under the FLSA and the Family and Medical Leave Act (FMLA), which provides up to 12 weeks of unpaid leave for covered employers with 50 or more employees. Mississippi final paycheck rules require payment by the next regular payday for both voluntary and involuntary separations, and accrued unused vacation must be paid out if the employer's policy provides for vacation. Mississippi is an at-will employment state, and the employer-friendly legal environment is one factor that makes the state attractive for out-of-state employers. The Mississippi Department of Employment Security and the Mississippi Department of Labor do not actively enforce wage-and-hour laws beyond federal requirements, and wage-and-hour litigation in Mississippi is less common than in more employee-friendly states.

Recent Mississippi Tax Developments

The most significant recent Mississippi tax development is the ongoing implementation of the 2022 Mississippi Tax Elimination Act, which reduced the income tax rate from 5.00% (2022) to 4.40% (2024) to 3.00% (2025). The act provides for further annual reductions of 0.50 percentage points each year that annual revenue triggers are met, with the goal of eliminating the income tax entirely by 2030. The revenue trigger requires that state general fund revenue for the prior fiscal year exceeds the prior year's revenue by at least 3%, with the trigger evaluated annually by the Mississippi Department of Revenue and the Legislative Budget Office. The 2025 reduction to 3.00% was triggered by 2024 revenue exceeding the threshold, and future reductions will depend on continued revenue growth.

The second major development is the 2024 elimination of the Mississippi investment income tax, which previously taxed investment income (interest, dividends, and capital gains) at a separate rate of 4.00%. The investment income tax was eliminated entirely beginning in 2024, producing significant tax savings for retirees and investors with substantial investment income. The Mississippi standard deduction was also increased to $10,000 for single filers and $12,000 for married filing jointly for 2025, indexed for inflation. The Mississippi SUI wage base remains at $7,000, the federal minimum, and the new employer rate of approximately 1.0% (plus the 0.20% contingency assessment) is stable for 2025. Mississippi has not enacted a paid family and medical leave program, and there are no plans for one as of 2025. Out-of-state employers with Mississippi remote employees should monitor the annual income tax rate reduction trajectory and update payroll systems each January to reflect the new rate.

Common Mississippi Payroll Mistakes

The most common Mississippi payroll mistake is failing to update the income tax rate each January as the Tax Elimination Act reduces the rate. Mississippi reduced the rate from 4.40% (2024) to 3.00% (2025), and failure to update payroll systems produces over-withholding of Mississippi income tax and refund claims by employees at year-end. The second common mistake is failing to register for both the MS DOR withholding account and the MDES SUI account — these are separate registrations, and missing one of them produces back-tax exposure with the corresponding agency.

The third common mistake is mishandling the Mississippi standard deduction and personal exemptions in the withholding calculation, particularly the substantial exemptions ($6,000 for single filers and $12,000 for married filing jointly) that significantly reduce taxable wages. Using the wrong exemption amount produces incorrect withholding. The fourth common mistake is failing to file quarterly withholding returns even in zero-wage quarters, which generates penalties. The fifth common mistake is mishandling supplemental wages — Mississippi supplemental withholding is 3.00% with no exemption adjustment, and applying the standard formula to bonuses produces incorrect withholding.

The sixth common mistake is failing to file annual Form 89-140 reconciliation with the MS DOR by January 31, which generates per-form penalties. The seventh common mistake is mishandling non-resident withholding for employees who split time between Mississippi and neighboring states, particularly the allocation of wages based on days worked in each state. The eighth common mistake is failing to claim the credit for taxes paid to other states on Schedule N for Mississippi residents who work in neighboring states, which can result in significant double taxation. The ninth common mistake is failing to apply the federal $7.25 minimum wage for non-exempt Mississippi employees, particularly for employers accustomed to higher state minimum wages in their home states.

What to Do Next

Audit your Mississippi payroll compliance using the nine common mistakes above. Verify that your MS DOR withholding account and MDES SUI account are both active and that quarterly withholding returns and SUI wage reports are filed on time, including zero returns for no-wage quarters. Confirm that SUI contributions stop at the $7,000 wage base per employee and that the new employer rate of approximately 1.20% (including the contingency assessment) is correctly applied in your payroll system. Verify that the current 3.00% Mississippi income tax rate is applied in your payroll system and that Form 83-100 is on file for every Mississippi employee. Verify that the Mississippi standard deduction and personal exemptions are correctly applied in the withholding calculation. If you have a Mississippi resident working for an out-of-state employer, confirm that the credit for taxes paid to other states is being claimed on Form 80-108, Schedule N. Monitor the annual Mississippi income tax rate reduction trajectory and update payroll systems each January to reflect the new rate. Run our multi-state withholding calculator for each Mississippi employee to verify the full federal and state payroll picture.