Quick Answer
Siesta Key is in unincorporated Sarasota County with a combined millage rate of approximately 13.0-14.0 mills. A $1M home without homestead exemption pays approximately $13,000-$14,000/year in property taxes. Most Siesta Key owners do not qualify for homestead exemption since the majority of properties are second homes or investment properties. Call Barrett at (813) 733-7907 to discuss tax implications.
How Are Property Taxes Calculated on Siesta Key?
Florida property taxes are calculated by multiplying the assessed value by the applicable millage rate, then subtracting any exemptions. Siesta Key is unincorporated Sarasota County, so you pay the county millage rate (there is no additional city millage). The Sarasota County Property Appraiser determines the assessed value of your property based on market data. The Value Adjustment Board hears appeals.
Sarasota County Millage Breakdown (Unincorporated, Approximate)
| Taxing Authority | Approx. Millage | Annual Cost on $1M Home |
|---|---|---|
| Sarasota County General | ~3.0-3.5 mills | $3,000-$3,500 |
| Sarasota County School District | ~4.8-5.2 mills | $4,800-$5,200 |
| Sarasota County Fire District | ~2.0-2.5 mills | $2,000-$2,500 |
| Mosquito Control District | ~0.2-0.3 mills | $200-$300 |
| Other Special Districts | ~0.5-1.0 mill | $500-$1,000 |
| Total (Approximate) | ~13.0-14.0 mills | $13,000-$14,000 |
Note: Millage rates are set annually by each taxing authority and can change. The figures above are approximate based on recent years. Verify current rates with the Sarasota County Property Appraiser's office before closing. Taxing authorities set new millage each fall for the following year.
Property Tax Estimates by Purchase Price (Non-Homesteaded)
| Purchase Price | Assessed Value (est.) | Annual Tax at 13.5 mills | Monthly Tax Equivalent |
|---|---|---|---|
| $500,000 | ~$500,000 | ~$6,750 | ~$563/mo |
| $750,000 | ~$750,000 | ~$10,125 | ~$844/mo |
| $1,000,000 | ~$1,000,000 | ~$13,500 | ~$1,125/mo |
| $1,500,000 | ~$1,500,000 | ~$20,250 | ~$1,688/mo |
| $2,000,000 | ~$2,000,000 | ~$27,000 | ~$2,250/mo |
| $3,000,000 | ~$3,000,000 | ~$40,500 | ~$3,375/mo |
| $5,000,000 | ~$5,000,000 | ~$67,500 | ~$5,625/mo |
Note: Florida's assessment value is typically set close to market value for non-homesteaded properties. The first-year assessment after purchase often reflects the sale price. These are estimates only.
Does the Homestead Exemption Apply on Siesta Key?
Most Siesta Key property owners do not qualify for Florida's homestead exemption because the property is not their primary residence. Homestead requires that the property be your permanent residence as of January 1 of the tax year, supported by Florida driver's license, voter registration (if registered), and a Declaration of Domicile filed with the Clerk of Courts.
If you do establish Siesta Key as your primary residence, the homestead exemption provides a $50,000 reduction in assessed value (first $25,000 applies to all tax rates; second $25,000 applies to non-school millage). At a combined rate of approximately 13.5 mills, this saves approximately $550-$600 per year (because the full exemption does not reduce school district taxes). The more significant benefit is the Save Our Homes cap.
Save Our Homes Cap and How It Works
Once you establish homestead, the Florida Save Our Homes (SOH) amendment limits your annual property tax assessment increase to 3% or the rate of CPI inflation, whichever is lower. Over 10-15 years in a rising market, this creates a substantial gap between your assessed value and market value, significantly reducing your tax bill relative to a new buyer.
Example: If you buy a Siesta Key home for $2M as your primary residence and establish homestead, your assessment is capped at 3% growth per year. After 10 years in a market where values grew 5-7% annually, your assessed value might be $2.5M while market value is $3.5M, saving you $13,500+ per year in taxes versus a new buyer assessed at market.
When you sell, the new buyer loses the SOH cap and is assessed at the new market value. SOH savings are transferable to a new Florida homestead via portability within three years.
