Mississippi Tax Guide (2026)
Comprehensive statutory analysis of Mississippi individual income tax rates, Department of Revenue filing forms, extension guidelines, telecommuting sourcing rules, and pass-through entity tax provisions.
Key Statutory Tax Parameters (Mississippi, 2026)
2026 Legislative & Statutory Highlights
Mississippi has restructured its income tax into a flat 4.0% rate, exempting the first $10,000 of taxable income for single filers ($20,000 for married couples) under the Mississippi Tax Freedom Act.
Mississippi operates a flat personal income tax schedule with a statutory flat rate of 4.0%. Tax parameters are indexed annually or enacted through state legislative sessions. Taxpayers should ensure that adjustments for federal bonus depreciation, Section 179 expensing, and Net Operating Loss (NOL) carryforwards follow Mississippi's specific rolling or static Internal Revenue Code conformity date.
Filing Forms, Deadlines & Extension Guidelines
Multi-State Workers & Telecommuting Sourcing Rules
Mississippi taxes residents on all income. Nonresidents working physically in Mississippi are taxed on income earned within the state.
Pass-Through Entity (PTE) Tax & Small Business Rules
Mississippi enacted an elective Pass-Through Entity Tax (HB 1691) allowing partnerships and S-corps to pay tax at the 4.0% flat rate at the entity level.
Estate & Inheritance Tax
Mississippi imposes no state estate tax and no inheritance tax.
Local & County Taxes
Mississippi cities and counties do not levy local personal income taxes.
Worked Tax Example: $120,000 W-2 Earner in Mississippi
A single taxpayer in Mississippi earning $120,000 pays approximately $4,120 in Mississippi state income tax under the 4.0% flat framework, an effective state rate of 3.43%.
Calculate Your 2026 Mississippi Tax Liability
Enter your taxable income, filing status, and municipal details below to calculate your customized state tax liability and print your executive summary.
Flat rate 4.00% per Tax Foundation 2026; on a statutory glide path toward 3.5% by 2030 (some sources show 4.4%/4.0%). Verify the exact 2026 rate against MS DOR.
⚠ Some figures for this state are not yet fully verified — confirm with the state Department of Revenue before relying on them.
2026 Executive Mississippi State Tax Audit Summary
Not tax, legal, or financial advice
FiscTalk provides general educational information from public sources. Your tax results depend on the full set of facts, your filing history, and the jurisdiction-specific rules that shift yearly. Before filing or making decisions, consult a licensed CPA, EA, or attorney. FiscTalk is not a fiduciary and is not affiliated with the IRS or any state agency.
Sources & methodology
Frequently Asked Questions: Mississippi Taxes
Source-verified — not professional advice
Every figure on this page is checked in-house against its primary source — IRS revenue procedures and publications, state Departments of Revenue, and the text of the underlying statute — before publication. Last reviewed 2026-10-20. The full source list is at the bottom of this page. If you spot an error, see our corrections & standards policy.
Not tax, legal, or financial advice
FiscTalk provides general educational information from public sources. Your tax results depend on the full set of facts, your filing history, and the jurisdiction-specific rules that shift yearly. Before filing or making decisions, consult a licensed CPA, EA, or attorney. FiscTalk is not a fiduciary and is not affiliated with the IRS or any state agency.
Sources & methodology