How Property Taxes Work in Stuart, FL
A Stuart property owner pays two separate tax bills -- City of Stuart and Martin County -- calculated against the same county-assessed value but set by two different governing bodies, with Florida's own statewide rules layered on top, including a homestead exemption most out-of-state buyers have never dealt with before.
Two Governments, One Assessed Value, Two Rates
Every property owner within Stuart city limits pays a municipal tax bill to the City of Stuart and a separate county tax bill to Martin County, both calculated against the same underlying assessed value determined by the Martin County Property Appraiser. Florida counties administer property assessment and tax collection at the county level even for parcels inside a municipality, but each municipality sets its own millage rate on top of the county's rate -- a structure that will look familiar to anyone who has owned property in another state with combined city-and-county billing, and unfamiliar to anyone moving from a market with a single consolidated bill.
For fiscal year 2025-26 (October 2025 through September 2026), the Stuart City Commission voted 4-1 to cut the city's millage rate from 5.0 to 4.9 mills, part of a $47.9 million adopted budget -- a reduction the city partly funded by eliminating up to 12 staff positions, according to its own reporting. Martin County's general fund millage runs roughly 6.56 mills for the same period. Those two figures alone don't add up to a complete bill: the county-wide combined average millage, including school district and any applicable special districts, runs near 15.47 mills, of which roughly 6.50 mills funds Martin County schools specifically.
What a Mill Actually Means, and Why This Differs From a Percentage-Based System
Florida taxes property in mills -- one mill equals $1 of tax per $1,000 of assessed value -- rather than the cents-per-$100 convention some other states use. A property assessed at $400,000 facing a combined city-plus-county-plus-school rate near 15 mills would owe roughly $6,000 a year before any exemptions, though the exact figure depends entirely on which specific taxing districts apply to that parcel and what exemptions the owner has filed for. In-city Stuart parcels generally don't carry the same unincorporated-area fire, parks, and stormwater special-district millages that apply outside city limits, since the City of Stuart provides those services directly and bundles their cost into its own 4.9-mill rate -- meaning a simple 'county average plus city rate' addition can overstate an in-city bill if it double-counts services the city already covers.
This page does not have a confirmed, current combined millage figure specific to an in-city Stuart parcel (as distinct from the countywide average, which includes unincorporated areas with different service structures) and won't manufacture one. Get the exact current combined rate for a specific parcel from the Martin County Property Appraiser's office.
Florida's Homestead Exemption: A Real Benefit Most Relocating Buyers Haven't Used Before
Florida offers a homestead exemption that reduces a primary residence's taxable value, available to owners who both own and occupy the property as their permanent residence as of January 1 of the tax year -- the application deadline is March 1. This is a genuinely valuable, widely used Florida-specific benefit, and it's paired with the Save Our Homes assessment cap, which limits how much a homesteaded property's assessed value can increase year over year regardless of how much market value rises -- a protection that can create a real, sometimes substantial gap between a long-time owner's assessed value and a new buyer's purchase price.
That gap matters directly for a Stuart buyer: a home's current owner may be paying tax on an assessed value far below the home's actual sale price, because Save Our Homes has capped their assessment increases for years or decades. A buyer should not assume the seller's current tax bill is a reliable estimate of what they'll pay after closing -- the property will be reassessed at something closer to the new purchase price the year after the sale, and the buyer's own homestead exemption (if applicable) and Save Our Homes protection only begin accruing from their own ownership date forward. Confirm the realistic post-sale tax estimate directly with the Martin County Property Appraiser rather than trusting a current listing's stated tax figure.
Non-Homestead and Investment Property: A Different Set of Rules
A second home, investment property, or vacation rental in Stuart doesn't qualify for the homestead exemption or the full Save Our Homes protection, and non-homestead property assessment increases are capped differently under Florida law (generally at a higher percentage than the homestead cap) -- a distinction that matters directly for anyone specifically evaluating a Stuart property as a vacation rental or investment rather than a primary residence, covered in more depth on this site's Vacation Rental Investment page.
This page does not have a confirmed, current figure for the non-homestead assessment cap percentage and recommends confirming current Florida Department of Revenue rules directly, since exemption and cap rules are set at the state level and occasionally adjusted.
The Appeal Process: A Real Option, With a Real Deadline
A property owner who believes the Martin County Property Appraiser's assessed value overstates actual market value has a formal appeal path through the county's Value Adjustment Board, generally requiring the owner to file within a defined window after the annual Truth in Millage (TRIM) notice is mailed -- typically in August, with a limited window to file a petition afterward. An appeal generally requires comparable sales evidence or other documentation showing the assessed value is out of line with market value; simply disagreeing with the number isn't sufficient grounds on its own.
This page does not have a confirmed, current filing deadline or fee for a Martin County Value Adjustment Board petition for the current tax year and recommends confirming the exact window directly with the Martin County Property Appraiser's office, since these are procedural deadlines that don't reopen once missed for that tax year.
How Stuart and Martin County Compare Regionally
Martin County's combined millage picture -- a roughly 6.56-mill county general fund rate and a countywide average near 15.47 mills including schools and special districts -- sits within a broad, unremarkable range for Florida's Treasure Coast and Atlantic Coast counties generally; this page did not find a rigorous, current ranked comparison against every neighboring county's effective combined rate and won't invent one. What is confirmed: the City of Stuart's own decision to cut its municipal rate for FY2025-26, even while absorbing staffing reductions to do so, reflects a real, local political choice about the tradeoff between tax relief and city services, not simply following a regional trend.
A buyer weighing Stuart specifically against a neighboring Martin County municipality (Sewall's Point, Jensen Beach's unincorporated area, Palm City) should compare the actual combined millage for each specific address, not just headline county or city rates in isolation, since special-district layers can meaningfully change the real bill.
Payment Timing and Practical Logistics
Florida property tax bills are generally mailed in November for the calendar tax year, with early-payment discounts available on a sliding scale (commonly up to 4% for payment in November, declining each month through March) and the full amount due by March 31 before delinquency -- standard statewide practice, though exact discount schedules and deadlines should be confirmed with the Martin County Tax Collector for the current year. Most mortgage lenders escrow property tax payments as part of the monthly mortgage payment, in which case the lender receives and pays the bill directly; an owner without an escrow arrangement is responsible for paying the combined bill directly.
A practical note for anyone closing on a Stuart property: because Save Our Homes assessment caps can create a large gap between a seller's current tax bill and what a new owner will actually pay, always ask for a realistic post-sale tax estimate from the Property Appraiser's office or a local closing attorney, not the seller's current tax bill, when budgeting for a specific property.
What This Page Does Not Know
This page does not have a confirmed, current combined millage figure specific to an in-city Stuart parcel as distinct from the countywide average, a confirmed current Value Adjustment Board filing deadline or fee for the current tax year, or a confirmed current non-homestead assessment cap percentage. It also does not have a confirmed figure for any special district levy (drainage district, community development district) that might apply to a specific Stuart parcel beyond the base city and county rates.
Confirm the full, current combined tax bill -- including any special district levies, homestead exemption eligibility, and a realistic post-sale reassessment estimate -- for a specific parcel directly with the Martin County Property Appraiser's office before making a purchase decision.
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Get a Free Agent Referral →Independent research. No ads. No sponsored listings. Data sourced from: the Martin County Property Appraiser's own website (pamartinfl.gov) for 2025 millage codes and rates; the City of Stuart's own budget materials and reporting via hometownnewstc.com and WQCS for the FY2025-26 4.9-mill city tax rate cut and $47.9 million budget; the Martin County Taxpayer Association for general millage-structure and tax-bill explanation; and general, widely documented Florida Department of Revenue statewide policy on the homestead exemption, Save Our Homes assessment cap, and non-homestead assessment caps. Facts not independently confirmed and not invented here include: a combined millage figure specific to an in-city Stuart parcel as distinct from the countywide average; current Value Adjustment Board filing deadlines and fees; the current non-homestead assessment cap percentage; and any special district levies specific to individual Stuart parcels. Confirm the full current combined tax bill for a specific parcel directly with the Martin County Property Appraiser before making a purchase decision. Nothing on this page is legal or tax advice.