Quick Answer
Longboat Key property taxes depend on which county your property is in. Sarasota County properties carry roughly 13 to 16 mills total. Manatee County properties run approximately 14 to 18 mills. A $1M home with Florida homestead exemption pays approximately $9,500 to $14,000 per year. Investment properties and seasonal homes pay more because the $50,000 homestead exemption does not apply.
Longboat Key FL Property Taxes: Complete Guide
By Barrett Henry, Broker Associate, REMAX Collective • Updated September 23, 2026
Longboat Key spans two Florida counties, which means property taxes work differently depending on where exactly your property sits. North key properties are assessed by the Manatee County Property Appraiser. South key properties are assessed by the Sarasota County Property Appraiser. Both counties offer Florida's homestead exemption and Save Our Homes protections to primary residents. This guide breaks down how the tax system works on Longboat Key and what you should expect to pay.
Longboat Key Resources
How Are Longboat Key Property Taxes Calculated?
Florida property taxes are calculated by multiplying the taxable assessed value of your property by the combined millage rate for your taxing district. One mill equals $1 of tax per $1,000 of assessed value. Your taxable assessed value is your market value minus any applicable exemptions (homestead, senior, disability, etc.).
Formula: Taxable Value x (Total Millage / 1,000) = Annual Property Tax
Sarasota County Millage Breakdown (South Key Properties)
| Taxing Authority | Approximate Millage | Notes |
|---|---|---|
| Sarasota County General | ~3.70 mills | General county operations |
| School Board (operating) | ~4.10 mills | Required by state, no homestead exemption on second $25K |
| School Board (capital) | ~1.50 mills | Capital improvements |
| Town of Longboat Key | ~1.90 mills | Municipal services, police, roads |
| Sarasota County Library | ~0.50 mills | |
| Mosquito Control District | ~0.10 mills | |
| SWFWMD (water management) | ~0.25 mills | |
| Emergency Medical Services | ~0.50 mills | Varies by district |
| Total Approximate | ~12.5 to 14.0 mills | Varies by precise location and year |
Manatee County Millage Breakdown (North Key Properties)
| Taxing Authority | Approximate Millage | Notes |
|---|---|---|
| Manatee County General | ~5.25 mills | General county operations |
| School Board (operating) | ~4.30 mills | Required by state |
| School Board (capital) | ~1.50 mills | |
| Town of Longboat Key | ~1.90 mills | Same town; same municipal rate |
| Southwest Florida Water Mgmt | ~0.25 mills | SWFWMD |
| Fire/EMS District | ~1.50 mills | Varies by district |
| Other Special Districts | ~0.30 to 0.80 mills | |
| Total Approximate | ~14.0 to 16.5 mills | Typically higher than Sarasota side |
Sample Property Tax Calculations
| Property Value | County | Exemption | Taxable Value | Mills Used | Est. Annual Tax |
|---|---|---|---|---|---|
| $600,000 | Sarasota | Homestead ($50K) | $550,000 | 13.5 | ~$7,425 |
| $600,000 | Sarasota | None (investment) | $600,000 | 13.5 | ~$8,100 |
| $1,000,000 | Sarasota | Homestead ($50K) | $950,000 | 13.5 | ~$12,825 |
| $1,000,000 | Manatee | Homestead ($50K) | $950,000 | 15.5 | ~$14,725 |
| $1,000,000 | Sarasota | None (investment) | $1,000,000 | 13.5 | ~$13,500 |
| $2,500,000 | Sarasota | Homestead ($50K) | $2,450,000 | 13.5 | ~$33,075 |
| $2,500,000 | Manatee | Homestead ($50K) | $2,450,000 | 15.5 | ~$37,975 |
How Does the Florida Homestead Exemption Work on Longboat Key?
Florida's homestead exemption is available to any property owner who uses the property as their primary residence as of January 1 of the tax year. The exemption works as follows:
- First $25,000 of assessed value: Exempt from all property taxes including school taxes.
- Second $25,000 of assessed value (between $50,000 and $75,000): Exempt from all taxes except school district taxes.
- Net effect: Up to $50,000 reduction in assessed value, with the school tax saving applying only to the first $25,000 reduction.
The filing deadline is March 1 of the tax year for which you want the exemption. You cannot file retroactively. If you close on a Longboat Key property in January, you must file by March 1 of that same year to get the exemption for that year's taxes. File with the applicable county:
- Sarasota County Property Appraiser: sc-pa.com | 2001 Adams Lane, Sarasota, FL 34237 | (941) 861-8200
- Manatee County Property Appraiser: mcpafl.org | 915 4th Ave W, Bradenton, FL 34205 | (941) 748-8208
Save Our Homes Cap
Once you have homestead status, Florida's Save Our Homes provision limits the annual increase in your property's assessed value to 3% or the rate of inflation (CPI), whichever is less. In a rising real estate market, this protection is extremely valuable. A homestead property bought in 2015 at $500,000 that is now worth $1.2M may still be assessed at $650,000 or $700,000 if the owner has held it with homestead continuously. This creates a significant tax advantage for long-term primary residents vs. recent buyers at current market prices.
Portability
Florida's portability provision allows homestead property owners to transfer their accumulated Save Our Homes benefit (the difference between market value and assessed value) to a new homestead property in Florida. This is significant for buyers who are selling a long-held Florida primary residence and purchasing on Longboat Key. The transferred benefit can reduce the new property's assessed value by up to $500,000. Portability must be applied for when you file your homestead exemption on the new property. Do not miss this filing deadline.
| Scenario | Prior Home | LBK Purchase | Portable Benefit | New Assessed Value |
|---|---|---|---|---|
| Selling Sarasota home, buying LBK | Market $800K, Assessed $500K | $1.5M | Up to $300K | ~$1.2M |
| Selling Tampa home, buying LBK | Market $600K, Assessed $300K | $900K | Up to $300K | ~$600K |
| Buying LBK as first FL homestead | N/A | $1.5M | $0 (no prior homestead) | ~$1.45M (after $50K exemption) |
How Do I Look Up Property Taxes for a Specific Longboat Key Property?
The fastest way to see what a specific property is currently paying in taxes:
- Sarasota County: Go to sarasotataxcollector.com, click Property Taxes, and search by address or parcel number. The current and prior year tax bills are available online.
- Manatee County: Go to taxcollector.com, search by address or parcel number. Tax bills and payment history are available online.
Important: the current owner's tax bill reflects their exemption status and their assessed value (which may be significantly below market due to Save Our Homes). Your tax bill as a new buyer will be based on a new assessment close to your purchase price, not the prior owner's assessed value. Always calculate what you will pay, not what the seller pays.
Ready to Buy or Sell on Longboat Key?
Barrett Henry — Broker Associate, REMAX Collective. 23+ years of real estate experience.
Contact BarrettCall (813) 733-7907Frequently Asked Questions About Longboat Key Property Taxes
When are Longboat Key property taxes due?
Florida property tax bills are mailed in November and are due in full by March 31 of the following year. Florida offers early payment discounts: 4% if paid in November, 3% in December, 2% in January, and 1% in February. Taxes become delinquent after April 1. If you have a mortgage, your lender typically collects monthly escrow and pays the annual bill on your behalf, usually in November to capture the 4% discount.
Is there a senior exemption on Longboat Key?
Yes. Both Sarasota and Manatee counties offer additional senior exemptions for homestead property owners age 65 or older who meet income requirements. The senior exemption can provide an additional $25,000 to $50,000 reduction in assessed value on top of the standard homestead exemption. Income limits and specific amounts vary by county and are adjusted periodically. Contact the applicable county property appraiser's office for current income thresholds and application requirements.
How much will my taxes increase after I buy?
When a property is sold in Florida, the county property appraiser reassesses it to just value (market value) in the year after the sale. If the prior owner held the property with homestead for many years and Save Our Homes capped their assessed value well below market, your first-year tax bill can be significantly higher than the prior owner's. On a $1.5M purchase where the prior owner's assessed value was $700,000, your first-year bill could be 70% to 100% higher than theirs. Budget for your actual cost, not the prior bill on the listing sheet.
Are there any tax advantages to buying on Longboat Key vs. nearby mainland?
Not specifically from a millage rate perspective. Town of Longboat Key millage adds to the county rate for all properties on the island. In some cases, properties in the unincorporated Sarasota or Manatee county areas adjacent to the island carry lower total millage because they are not in a municipality. The homestead exemption, Save Our Homes cap, and portability protections apply equally across the island and the mainland, so the long-term tax advantages are the same for primary residents wherever they buy in Florida.
Does a condo HOA fee include property taxes?
No. HOA or condo association fees cover operating costs, reserves, and common area maintenance, but they do not include your individual property tax liability. You pay property taxes separately, either through your mortgage escrow account or directly to the county tax collector. Some residents confuse the association fee with an all-in payment, but taxes are always billed individually to each property owner.
About Barrett Henry: Barrett Henry is a licensed Broker Associate with REMAX Collective serving the greater Tampa Bay, Sarasota, and Manatee County areas. With 23+ years of real estate experience, Barrett specializes in luxury coastal properties, waterfront homes, and barrier island real estate including Longboat Key. Learn more about Barrett or schedule a consultation.
