Mississippi Small Business Tax Guide — 2026
Income Tax Rate
4.7% flat rate (as of 2026)
Sales Tax Rate
7%
Filing Deadline
April 15 (matches federal deadline)
Mississippi Income Tax
Mississippi imposes a state income tax with rates of 4.7% flat rate (as of 2026). Self-employed individuals, freelancers, and sole proprietors pay this tax on their net business income in addition to federal income tax and federal self-employment tax (15.3%).
Self-Employment in Mississippi
Mississippi is transitioning to a flat 4.7% rate (previously progressive). Self-employment income is taxed at this standard rate. No separate state SE tax.
Estimated Tax Requirements
Quarterly estimated payments required if you expect to owe $200 or more. Standard federal due dates apply.
Mississippi Deductions & Credits
- Mississippi standard deduction: $2,300 (single) / $4,600 (married filing jointly)
- Mississippi does not conform to many federal deductions
- Credit for taxes paid to other states
Business Filing Fees
LLC: $50 formation + $0 annual fee. Corporation: $50 formation + annual franchise tax.
Key Facts About Mississippi Taxes
- Mississippi is transitioning to a flat tax — previously had rates up to 5%
- Very low estimated payment threshold at $200
- 7% sales tax is one of the highest flat state rates
- No annual LLC fee — one of the cheapest states for LLC maintenance
The Part Mississippi Does Not Do For You
Whatever Mississippi takes, it takes on your net profit — and net profit is just what you earned minus what you can prove you spent. The proving is on you, and it is where most of the money leaks out.
TaxTidy is where the proof lives. Photograph a receipt and it reads the vendor, the amount and the date in about three seconds, then files the expense on its Schedule C line. Nothing gets typed in twice, and nothing depends on you remembering a purchase from eight months ago.
Because Mississippi wants its own return alongside the federal one, the same organized record does double duty — one set of receipts, sorted once, ready for whichever deadline comes first. Your Audit Readiness Score shows you how solid that record is before anyone else asks.
Frequently Asked Questions
What is Mississippi's income tax rate?
Mississippi has transitioned to a 4.7% flat income tax rate as of 2026. The first $10,000 of income is exempt.
How much does a Mississippi LLC cost?
Mississippi LLCs cost $50 to form with no annual fee — among the cheapest in the nation.
When are Mississippi estimated taxes due?
Quarterly on April 15, June 15, September 15, and January 15. Required if you expect to owe just $200 or more.
Official source: Mississippi Department of Revenue
TaxTidy provides expense organization tools based on the most current US tax law available to it. TaxTidy is not a CPA, Enrolled Agent, or licensed tax professional. All categorizations, deductions, and tax calculations are estimates. Please verify all data for accuracy and consult a certified tax professional before filing.
Start Tracking Your Mississippi Business Expenses
Your first 25 scans are on us — free for life, no card required. Enough to sort this quarter's receipts by Schedule C line and see your Audit Readiness Score for the first time.
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