Property Taxes in Biloxi: City, County, School District, and the Casino Wildcard
Biloxi property owners pay into three separately-set tax bodies -- the City of Biloxi, Harrison County, and the Harrison County School District -- and, unusually for a market this site covers, the city's own budget leans heavily on casino gaming taxes and fees rather than property tax alone, which changes how a Biloxi tax bill should be understood relative to almost any other beach town on this site.
Three Bills, One Parcel
Every property in Biloxi is taxed by three separate governing bodies: the City of Biloxi (a municipal millage), Harrison County (a countywide millage funding county government and services), and the Harrison County School District (a millage dedicated to public education). Each is set independently by its own elected body -- the Biloxi City Council, the Harrison County Board of Supervisors, and the school board -- though they're typically combined into a single tax bill for a property owner's convenience.
This three-body structure is standard for an incorporated Mississippi city inside a county, but Biloxi's situation has a real wrinkle most markets on this site don't share: the city's own operating budget draws close to 40% of its revenue from casino gaming taxes and license fees rather than property tax, according to reporting on the city's finances. That matters directly for a property owner, because it means Biloxi's fiscal health -- and by extension its ability to hold property tax rates flat -- is tied more tightly to the health of the Gulf Coast gaming industry than a typical municipality's budget would be.
The City's Rate: Around 30.10 Mills, With a 2025 Increase Proposal Pending
The City of Biloxi's millage rate has run around 30.10 mills in recent reporting. In August 2025, Biloxi's mayor proposed raising that rate by three mills specifically to close a $2 million budget shortfall -- an increase estimated to add roughly $60 a year to the tax bill on a home assessed at $200,000. This page did not independently confirm whether that proposed increase was formally adopted by the City Council for the current fiscal year, so treat 30.10 mills as the recently reported baseline rather than a confirmed current figure, and verify the city's actual adopted rate directly with the City of Biloxi or Harrison County Tax Assessor before budgeting.
Whatever the final number, it's worth understanding why a mid-2020s Gulf Coast city government would face a property-tax shortfall in the first place: with casino gaming taxes and fees supplying close to 40% of city revenue, a soft gaming-revenue year, a new competing casino opening elsewhere on the coast, or a slowdown in visitor spending can pressure the city budget in a way that has no real parallel in a market funded primarily by property tax. That's a structural fact about how Biloxi is financed, not a prediction about any specific future budget cycle.
Harrison County's Rate and the School District's Modest Cut
The Harrison County School District millage was set to decrease 0.92 mills -- from 49.11 to 48.19 mills -- for fiscal year 2025, per the Harrison County Board of Supervisors, a real, if modest, reduction that offsets some of the pressure from the city's proposed increase. This page did not independently confirm the standalone Harrison County general-government millage as a separate figure from the school-district rate; county tax bills in Mississippi typically bundle county general-fund, school-district, and any special-district levies into one combined county-level rate alongside the separately billed city rate for incorporated residents.
Third-party effective-rate estimates put Harrison County's overall effective property tax rate around 0.62-0.65% of a home's assessed value, with one cited example showing roughly $1,370 a year in total property tax on a home valued around $212,200. Estimated average annual tax bills also varied meaningfully by ZIP code in one estimate -- roughly $1,007 in 39530 versus roughly $1,382 in 39532 -- reflecting differences in school-district and special-assessment overlaps across different parts of the city and county. These are directional estimates from third-party aggregators, not official assessor figures for any specific parcel.
How Mississippi Property Assessment Actually Works
Mississippi, like most states, taxes property against an assessed value rather than full market value, with the county tax assessor responsible for periodic reassessment. This page did not independently confirm Mississippi's current statewide residential assessment ratio or Harrison County's specific reassessment cycle and most recent reassessment date at a level of confidence it's willing to state as fact -- rather than guess at a percentage or a cycle length, this page directs you to the Harrison County Tax Assessor's office directly for the exact assessed value, assessment ratio, and reassessment history applied to any specific parcel you're evaluating.
Mississippi does offer homestead exemption programs for owner-occupied primary residences, and additional relief programs for elderly or disabled homeowners are common across Southern states generally -- but this page did not independently verify Mississippi's current homestead exemption dollar amount, eligibility rules, or application deadlines this research pass, and does not want to state a stale or approximate figure as if it were current. Ask the Harrison County Tax Assessor directly about any homestead or elderly/disabled exemption you might qualify for; the deadline to apply is typically early in the calendar year in most Mississippi counties, so a buyer closing mid-year should ask specifically about the timeline for the following tax year.
What the Casino Concentration Means for a Buyer, Practically
The practical implication of Biloxi funding nearly 40% of its city budget through casino gaming rather than property tax is genuinely a mixed picture for a property owner. On one hand, it has historically meant Biloxi's municipal property tax rate can run lower than it might otherwise need to be for a city providing a comparable level of services, since gaming tax revenue substitutes for some of what would otherwise be raised through property tax. On the other hand, it means the city's fiscal stability -- and therefore the pressure on future property tax rates -- is tied to an industry that competes regionally against expanding casino markets elsewhere in the Southeast and that showed at least one real, recent budget-shortfall event (the August 2025 proposal) serious enough to prompt a mayor to propose a rate increase.
This isn't a reason to avoid Biloxi -- Gulf Coast gaming revenue has grown, not shrunk, in the most recent reporting available (combined Gulf Coast casino revenue was reported around $1.59 billion in 2025, up slightly year over year) -- but it is a structural fact about the city's finances that a buyer evaluating long-term property tax stability here should understand and factor in, in a way that simply doesn't apply to most other beach towns on this site.
What a Buyer Should Actually Do
Before making an offer on a Biloxi property, pull the parcel's current assessed value and most recent tax bill directly from the Harrison County Tax Assessor's office (not from a real estate listing site, which may show a stale figure), confirm the current adopted City of Biloxi millage rate given the pending 2025 increase proposal, ask specifically about any homestead or elderly/disabled exemption you might qualify for and its application deadline, and ask a local agent or the city directly whether any further tax changes are under active discussion -- a city drawing close to 40% of its budget from a single industry is worth checking in on periodically, not just at the point of purchase.
This page does not state a specific dollar figure for a proration calculation at closing, since Mississippi's proration convention for a mid-year sale should be confirmed with a local closing attorney or title company, and property tax dates and delinquency deadlines are set by state law and should also be confirmed directly with the Harrison County Tax Collector rather than assumed from general knowledge of another state's system.
Ready to talk to a local Biloxi agent?
Get a Free Agent Referral →Independent research. No ads. No sponsored listings. Data sourced from: Ownwell's Harrison County and Biloxi property-tax trend pages; the Harrison County Board of Supervisors' own reporting on the FY2025 school-district millage reduction from 49.11 to 48.19 mills; WLOX's reporting on the Biloxi mayor's August 2025 proposed three-mill increase to close a $2 million budget shortfall and its estimated impact on a $200,000 home; tax-rates.org and SmartAsset for Harrison County effective property-tax-rate and ZIP-code-level estimates; and the American Gaming Association's 2026 Mississippi State of the States report and Mississippi Department of Revenue gaming-tax figures for Gulf Coast casino revenue and the casino industry's reported share of Biloxi's city budget. Facts not independently confirmed and not invented here include: the City of Biloxi's final adopted millage rate for the current fiscal year following the 2025 increase proposal; Mississippi's current statewide residential property assessment ratio; Harrison County's specific reassessment cycle and most recent reassessment date; and current homestead or elderly/disabled property tax exemption eligibility and dollar amounts. Confirm all current figures and eligibility directly with the Harrison County Tax Assessor and the City of Biloxi before making a purchase decision. Nothing on this page is tax or legal advice.