About ParcelMath

ParcelMath is an independent, ad-supported project with one job: turn Florida's public property numbers — assessment rolls, statutory tax rates, promulgated title premiums, federal closing-timing rules — into free calculators anyone can use, with the primary source linked behind every figure so you can check our work.

Our standard: every number traces to a primary source

Florida property math is unusually well-documented in public law and public data, and we hold the site to it. A figure earns a place in a tool here only when it can be traced to a source of record:

• The statutes themselves. Documentary-stamp tax on deeds (Fla. Stat. §201.02), the nonrecurring intangible tax on new mortgages (Fla. Stat. §199.133), recording fees (Fla. Stat. §28.24), the Save Our Homes assessment cap (Fla. Stat. §193.155), the homestead exemption (Fla. Stat. §196.031), and the TRIM notice and rolled-back-rate process (Fla. Stat. §200.065 and Fla. Stat. §200.069). Title insurance premiums are different — Florida sets them by state rule rather than leaving them to the market — and we cite that rule on the title page.
• State and county data of record. The Florida Department of Revenue's statewide cadastral (name-address-legal) tax roll and the county property appraisers' published millage and certified rolls for the property lookup and the county pages; the DOR's county millage tables for the estimators.
• Federal sources where they govern: the U.S. Census Bureau geocoder for address matching, FEMA's National Flood Hazard Layer for flood-zone status, and the federal TRID timing rules for the closing-timeline tool.

When two sources could disagree, the controlling legal source wins, and the page says which one it is.

How we keep the figures current

Every content page carries a visible "verified as of" date, and that date is not automatic — it moves only when a person actually re-checks that page's figures against the source. We re-verify when the law changes (a new session's statutes, a rule amendment), when the annual data refreshes (DOR certified rolls, county millage), and around date-certain events: Florida's August TRIM-notice season and the November 2026 property-tax ballot measure are both tracked as they move. A date that quietly advanced on every rebuild would tell you nothing; ours means someone looked.

How the tools work — and what we never see

Every tool runs entirely in your browser. The property lookup queries the Florida DOR data layers and the Census geocoder directly from your device; the calculators use the statutory rates and published millage above. ParcelMath has no accounts, no sign-ups, and no server that receives what you type — the addresses, prices, and dates you enter stay on your device and go only to the public government services each tool queries. There is nothing here to log in to, and nothing for us to sell.

Corrections — and why we want them

Accuracy is the whole product, so a wrong or stale figure is a bug we want to hear about. If a number looks off, or a county's data has moved, tell us and we'll re-check it against the source and fix it — usually the same week. Email corrections@parcelmath.com — corrections that check out are applied with a visible verified-as-of date.

What this site is not

ParcelMath is not a government agency, and not a lender, broker, title agent, or appraiser; nothing here is legal, tax, or lending advice. The calculators are planning estimates. Your county's Property Appraiser, Tax Collector, Value Adjustment Board, and closing agent hold the official numbers, and the source links on each page go straight to them.

How the site is funded

ParcelMath is free and supported by display advertising. Advertising never influences which sources we cite or what a calculator returns — the math is set by statute and public data, not by any advertiser. Our privacy page explains exactly how ads work here and what data they do and don't use.