Seminole County property taxes
Seminole County — Sanford, Altamonte Springs, Oviedo and Orlando's northern suburbs — sits almost exactly mid-pack among Florida's 67 counties on average total millage. The Property Appraiser publishes directly linkable parcel pages and its own official tax estimator, so a second opinion with district-exact millage is one click away.
The 2025 numbers
Seminole County's average total millage on the 2025 certified roll is 15.348 mills — about $15.35 for every $1,000 of taxable value — the 35th-highest countywide average of Florida's 67 counties. It splits like this:
| Levy group | Mills | What it funds |
|---|---|---|
| School district | 5.249 | School board operating and debt levies — the portion the additional homestead exemption does not reduce |
| Non-school | 10.099 | County commission, municipal, water management, independent and special districts |
| Average total | 15.348 | Taxable-value-weighted countywide average, Florida DOR "Millage and Taxes Levied Report," 2025 roll |
This is a countywide average — a planning number, not your bill. Actual millage depends on the taxing districts covering the parcel (city, MSTU, special districts), and real bills add non-ad-valorem assessments (fire, solid waste, CDD) that no millage math captures.
What that means in dollars
Engine-computed examples at Seminole County's average millage, using the school/non-school split above:
| Scenario | Estimated annual tax |
|---|---|
| $300,000 assessed value, homestead (both exemptions) | ≈ $3,953.98 |
| $500,000 assessed value, homestead (both exemptions) | ≈ $7,023.58 |
| $300,000 assessed value, no homestead (investment or second home) | ≈ $4,604.40 |
The homestead rows apply the first $25,000 exemption (§196.031(1)(a), all levies) and the additional exemption up to $26,411 (§196.031(1)(b), non-school levies only, 2026 CPI-indexed) — nothing else. Widow/widower, disability, veteran, senior and other programs stack on top: the buyer estimator models all eleven.
Buying in Seminole County? The listing's bill is not your bill
Florida assessed values reset to market at sale (§193.155) — the seller's Save Our Homes cap dies at closing, and your first full bill is computed from what you paid, not what they paid. Non-homestead property carries its own 10 percent assessment cap (§193.1554), which also does not transfer. Run the buyer estimator with Seminole County pre-selected, and if you're moving a Florida homestead, the portability calculator computes what you can carry with you.
At closing, local custom in Seminole County puts the owner's title-insurance premium on the seller's side (custom, not law — the contract controls). The title calculator and seller net sheet both carry the county custom.
Look up an actual Seminole County record
The property-tax lookup resolves any Seminole County address to its parcel — values, homestead status, last sale, an estimated annual tax at the county average — plus the county's official links for the certified record and the current bill:
- Property Appraiser: www.scpafl.org
- Tax Collector: seminolecounty.tax
- Official county tax estimator: scpafl.org
Estimates on this page are planning figures from official DOR millage data — never a bill, never tax advice. The county's TRIM notice and tax bill control.