MS
Mississippi Small Business Tax Guide
Understand MS taxes, common filings, and recordkeeping—educational overview, not tax advice.
Disclaimer: This page is educational content only. Tax laws change, and your situation may differ. It is not legal, tax, or financial advice. Consult a qualified professional licensed in Mississippi before making filing or planning decisions.
Tax landscape for small businesses
Mississippi small business taxes feature a simplified income tax structure that is phasing toward eliminating tax on the first $10,000 of earnings, with a flat 5% rate applying to income above that threshold. This phase-in is making Mississippi increasingly competitive for small business owners with modest pass-through income. The state sales tax rate is 7% — one of the highest base rates in the country — which is a significant consideration for retail businesses and pricing strategies.
C corporations pay a flat 5% income tax on all net income. Mississippi's overall cost of living and business operating costs remain among the lowest nationally, which helps offset the higher sales tax rate for many businesses.
Property taxes in Mississippi are relatively low, with assessed values set at 10%–15% of true value depending on property class. This below-average property tax burden reduces ongoing costs for businesses that own real estate. Manufacturing machinery purchases qualify for a reduced sales tax rate of just 1.5%, providing significant savings for manufacturers.
The Mississippi Department of Revenue administers all state taxes. The state provides economic development incentives through the Mississippi Development Authority (MDA), including the Advantage Jobs Program for payroll-based tax rebates, the Growth and Prosperity (GAP) program for businesses in distressed areas, tax-exempt bond financing, and industry-specific credits for manufacturing, technology, data centers, and renewable energy projects. Mississippi's low cost of doing business, combined with these incentive programs, makes the state particularly attractive for manufacturing, distribution, and back-office operations. This guide is for educational purposes only and does not constitute tax advice.
Tax overview
Approximate categories many small businesses review with an advisor. Rates and rules vary by year, industry, and entity—verify with official sources.
| Tax type | Typical rate / basis | Notes |
|---|---|---|
| Income Tax | 0%–5% | First $10,000 exempt (being phased in); 5% rate on income above that threshold. |
| Sales Tax | 7% | One of the highest base state sales tax rates; reduced rate of 1.5% on manufacturing machinery. |
| Property Tax | Varies by county | Relatively low; assessed at 10%–15% of true value depending on property class. |
| Corporate Tax | 5% | Flat corporate income tax rate on all net income. |
Filing requirements
Common themes—not a complete checklist for your business.
Mississippi income tax return (Form 80-105)
File with the Mississippi Department of Revenue by April 15. The return accounts for the phased-in exemption on the first $10,000 of income and applies the flat 5% rate above the exemption threshold. Mississippi starts with federal gross income and makes state-specific adjustments.
Sales tax registration and filing
Register for a Mississippi sales tax permit before making taxable sales. File monthly with the Department of Revenue. The standard rate is 7%, with reduced rates for specific categories including 1.5% on manufacturing machinery and 1% on certain farm equipment. Verify your product category for the correct rate.
Estimated tax payments
Required if you expect to owe $200 or more in Mississippi income tax after credits. Quarterly installments are due April 15, June 15, September 15, and January 15. Underpayment penalties apply if you pay less than 80% of your current-year liability.
Corporate income tax
C corporations file annually with the Department of Revenue at the flat 5% rate on Mississippi-apportioned net income. S corporations file informational returns passing income through to individual shareholders. Both entity types file by the 15th day of the third month after the tax year ends.
Withholding tax filing
Employers must register for Mississippi withholding and file returns monthly, quarterly, or annually depending on the amount withheld. Mississippi withholding reflects the state's income tax structure. Annual reconciliation is required on Form 89-140.
Business privilege tax (if applicable)
Certain businesses in Mississippi may be subject to a privilege tax based on the type of business activity conducted. Banks, insurance companies, and other financial institutions have separate tax obligations. Verify whether your industry has specific privilege tax requirements.
Common deductions & write-offs
Often discussed at the federal level; state conformity differs.
- Home office expenses per IRS qualification rules for exclusive and regular business use
- Business equipment under Section 179 — Mississippi generally conforms to federal immediate expensing limits
- Self-employed health insurance premiums deducted on the federal return and reflected in Mississippi income
- Retirement plan contributions to qualified plans including SEP-IRA, SIMPLE IRA, and solo 401(k) within federal limits
- Mississippi jobs tax credits for businesses creating positions through the Advantage Jobs Program
- Vehicle expenses for business travel using the IRS standard mileage rate or actual cost method
- Professional services, accounting, and legal fees directly related to Mississippi business operations
- Reduced 1.5% sales tax rate on manufacturing machinery purchases — a significant savings compared to the standard 7%
Practical tips
- Mississippi's 7% sales tax is among the highest base rates nationally — factor this into your pricing strategy and communicate it clearly on invoices.
- The income tax exemption on the first $10,000 is being phased in — verify the current exemption threshold when filing your return to ensure accurate calculations.
- Manufacturing machinery purchases qualify for a reduced 1.5% sales tax rate instead of the standard 7% — significant savings for businesses investing in equipment.
- Mississippi's low cost of living and business operating costs can offset the higher sales tax rate when compared to states with higher overall cost structures.
- Explore the Advantage Jobs Program for payroll-based tax rebates if your business is creating qualifying full-time positions meeting minimum wage thresholds.
- Property taxes in Mississippi are below the national average — this can make real estate ownership more affordable than in neighboring states.
- The Growth and Prosperity (GAP) program provides additional incentives for businesses locating in Mississippi's most economically distressed areas.
- Consider Mississippi's data center incentive program if you operate technology infrastructure — the state offers competitive tax exemptions for qualifying facilities.
Related Resources
Frequently asked questions
Explore More State Tax Guides
Get Started with Billed in Mississippi
Invoicing and expense tracking help you stay organized for Mississippi and federal obligations. Start free—then talk to your CPA about filings.
No credit card required. Cancel anytime.