Property Taxes and the True Cost of Owning on Siesta Key
Dave Giampietri, Dave Giampietri Group | eXp Realty, eXp Realty, (941) 313-7022
Quick Answer: Sarasota County's combined millage rate is approximately 11.47 mills for unincorporated areas. On an $850,000 home (current median), that's roughly $9,750 in annual property taxes before homestead exemption. Florida's $50,000 homestead exemption saves about $575 annually for primary residences. Insurance, HOA, and maintenance typically add $15,000–$30,000+ per year on a barrier island.
Property Taxes
Siesta Key properties fall under Sarasota County jurisdiction. The millage rate includes county, school district, and special district levies. Florida's homestead exemption reduces taxable value by $50,000 for primary residences — a roughly $575/year savings. Non-homesteaded properties (investment or seasonal homes) do not receive this exemption and pay the full assessed value.
Insurance Adds Up Fast
Flood insurance runs $2,500–$6,000+ per year for most island properties. Windstorm insurance adds $3,000–$10,000+ annually for waterfront homes. Condo owners face HOA fees of $400–$1,200+ per month, which typically include the building's share of windstorm and hazard coverage.
Maintenance: The Coastal Premium
Maintenance costs on a barrier island run higher than mainland equivalents due to salt air corrosion, humidity, and storm exposure. Exterior paint, metal fixtures, HVAC systems, and roofing all have shorter useful lives.
The Total Picture
For a typical $850,000 Siesta Key condo as a primary residence: property taxes around $9,175 after homestead, HOA $7,200–$14,400, flood $3,000–$5,000, HO-6 $800–$1,500, plus miscellaneous maintenance and assessments. Annual carrying costs excluding mortgage routinely land in the $20,000–$30,000+ range. If you're underwriting as a rental, run the numbers in the vacation rental investing guide and verify HOA risk in the condo HOA & SB 4-D guide.
Florida's Tax Advantages
Florida has no state income tax, no estate tax, and no inheritance tax. For high earners or retirees with substantial investment income, state income tax savings can partially or fully offset the higher insurance and property tax costs of barrier island living. Compare specific areas in the Siesta Key neighborhood guides, review current market reports, or read the full buyer's guide.
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