Florida Post-Purchase Property Tax Estimate
Estimate Florida post-purchase ad valorem tax with separate school-tax rates, declared homestead, approved portability and optional quoted assessments.
What This Calculator Does
Build a one-year Florida property-tax budget after purchase, with separate taxable bases for school taxes and non-school taxes. Enter the parcel's rates and declared assumptions rather than using a countywide default. 2026 uses the verified additional homestead cap; 2027 is an assumed projection. This is not an appraiser's assessment, eligibility approval or complete collector bill.
Who Is This For
Florida buyers, owners and real-estate professionals comparing a proposed tax budget with parcel documents. Confirm just value, homestead, portability and applicable dates with the appraiser; confirm rates and billed assessments through the relevant official sources.
How It Works
Choose the county (used only to link the official lookup), then enter the estimated just value and both millage rates for the parcel. Choose the year and where the rates come from; 2027 accepts assumed rates only and, with homestead, needs your assumed cap of at least $26,411. Mark a qualifying homestead and enter only portability that's already approved. Include non-ad valorem charges only with a yearly quote (0 if confirmed); otherwise the combined totals aren't calculated. Optionally enter the seller's comparable ad valorem tax before the payment discount, not the whole bill. Tick the confirmation and review the separate tax bases, the budgets and the comparison (+ or −).
Frequently Asked Questions
Can I use the price or the seller's assessed value for my post-purchase estimate?
Purchase price may be a starting proxy for just value, but the appraiser can determine a different value. Do not substitute the seller's assessed or taxable value or a value already reduced by portability/exemptions. A transfer ordinarily brings reassessment at the following January 1; confirm which year applies. The model uses estimated just value less an already approved portability amount. It does not preserve the seller's assessment or compute a continuing owner's multi-year Save Our Homes cap.
Why must millage for school taxes and non-school taxes be separate?
For declared qualifying homestead, the first exemption is up to $25,000 and reduces both ad valorem bases. The additional exemption applies to assessed value above $50,000 for non-school taxes only, up to the cap: $26,411 for 2026, fully reached at assessed value $76,411. It cannot reduce school taxes or non-ad valorem assessments. With hypothetical rates of 6 mills for school taxes and 14 mills for non-school taxes, just value $500,000, homestead and no portability, the component-rounded annual ad valorem estimate is $9,130.25. Those are illustrative rates, not county quotes.
Does choosing a county supply an official tax rate?
No. County selection provides official lookup references only. Enter millages for school taxes and non-school taxes for the actual parcel, year and taxing authorities; one mill is $1 per $1,000 of taxable value. School-tax totals include applicable operating, voted and debt levies. For 2026, declare adopted/proposed/assumed provenance; the tool does not verify it. The reviewed 2026 county publications were proposed, not a verified adopted parcel table. That does not mean no authority has adopted a budget. TRIM is proposed, not the final bill; old municipal/code rates are not universal county rates.
Can the calculator determine my portable Save Our Homes benefit?
No. Enter only the transferable amount already approved, or 0, up to $500,000 and no more than the just value you entered. The old home's advertised benefit isn't automatically what you can transfer, especially when the new home's value is different. The calculator doesn't work out upsizing or downsizing, decide eligibility or approve a filing. Confirm the application, approval and deadlines with the property appraiser; timing depends on January 1 of the year you left the old homestead, not on a set period after closing. Portability is used only with homestead.
Is the 2027 cap or rate official in this model?
No. 2027 accepts only assumed rates for school taxes and non-school taxes. With homestead, enter your assumed cap for the additional exemption from non-school taxes of at least $26,411; a blank or hidden future default isn't accepted. The published 2026 cap doesn't confirm 2027. All 2027 results are projections, not official assessments, adopted rates or a forecast of future CPI. Check future published figures separately. The $2 billion and 100-mill limits are form limits, not legal tax limits.
Is the total a full bill, and can I compare it with the seller's bill?
Only if you include an explicit annual non-ad valorem quote does the model combine that amount with ad valorem; even then it remains a modeled budget, not a certified full bill. An included confirmed 0 is different from excluded or unknown charges, whose combined totals are not modeled. The seller comparison accepts pre-discount ad valorem only, not a bill with additional assessments; blank is not zero and the difference keeps its sign. Monthly amounts are annual/12 budgeting averages, not escrow or collector installments. Effective rate uses annual ad valorem/entered just value, displayed to at most four decimal percent places—not the exact ratio.