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The Fennec Lab

Phase 3 — Florida-statutory transactions

Florida Real Estate Calculators

Doc stamps, Save Our Homes portability, closing costs, property-tax by county. Anchored to the Florida-specific transactional layer national publishers miss.

Anchored to: F.S. §§ 193, 196, 197, 201; county millage data

54 calculators live. Reviewed against current statute and regulation. Last updated 2026-05-15.

Most-used calculators

F.S. § 201.02

Florida Mortgage Calculator

Compute the real cost of a Florida home — not just the principal-and-interest payment. Layers in property tax under F.S. § 200.001, hurricane-loaded homeowners insurance under F.S. § 627.4133, HOA dues, and the Florida-specific closing-cost stack other mortgage calculators miss: deed documentary stamps (F.S. § 201.02), mortgage documentary stamps (F.S. § 201.08), the non-recurring intangible tax (F.S. § 199.133), and OIR-promulgated title insurance (F.S. § 627.7825). Surfaces cash to close, monthly all-in (PITI + HOA), affordability against the 28/36 rule, and total cost of ownership over the full loan term.

F.S. § 201.02

Florida Seller Net Sheet Calculator

Compute a Florida seller's net at closing — sale price minus mortgage payoff, F.S. § 201.02 deed documentary stamps, F.S. § 627.7825 OIR-promulgated owner's-title-insurance premium (where customarily seller-paid), F.S. § 475.42 real-estate commission, F.S. § 197.0734 prorated property taxes, prorated HOA / condo dues, and the seller's share of closing fees. Surfaces gap vs expected proceeds.

F.S. § 196.031

Florida Property Tax Calculator

Estimate your annual Florida ad valorem property tax bill under the homestead-exemption framework of F.S. § 196.031, the Save Our Homes assessment cap of F.S. § 193.155, and the millage-certification framework of F.S. § 200.001. Florida is unusual in computing a separate school taxable value and non-school taxable value — the second $25,000 homestead exemption is excluded from school taxes under Florida Constitution Art. VII § 6(d). This calculator handles the split, stacks additional senior (F.S. § 196.075), disability / widow (§ 196.202), veteran (§ 196.081), and full-exemption (§ 196.082 / § 196.102) provisions, and surfaces the homestead-vs-no-homestead savings at a county-typical 2025-2026 millage rate.

Find your calculator

Grouped by who tends to use each tool. Many calculators serve more than one audience.

For unit owners

Verify a notice, check a fine, or understand the lien exposure on a delinquent account before acting.

For buyers, agents & lenders

Affordability and transaction-cost calculators that surface the jurisdiction-specific line items most cost estimators miss.

For attorneys

Statutory citation-level analysis suitable for client memoranda and procedural verification.

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All 54 calculators in this cluster, organized by what they compute. Use the chips to narrow to a specific area.

100+

Calculators live

Across statute, regulation, and policy

100%

Statute-cited

Every formula links its source

4,000+

Unit tests

Every formula has a regression suite

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Formula transparency

Deterministic math, no hidden weights

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How these calculators are maintained

Every YMYL calculator is reviewed quarterly and after every legislative session in the jurisdiction it covers. Citations are link-validated monthly against the relevant statute and regulation websites. The methodology page documents the discipline.

Read the editorial methodology →

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