A Truth in Millage (TRIM) notice is the Notice of Proposed Property Taxes that every Florida county property appraiser mails each August under Chapter 200 of the Florida Statutes. Most homeowners glance at the bottom number and set the page aside. That works fine in an ordinary year. It works badly in a year when the property is changing hands, because the notice carries a dispute deadline that closes in under a month, and because the valuation figures printed on it will not follow the property to its next owner. For anyone under contract in Hillsborough, Pinellas, Pasco, or Hernando County, this is the closest thing available to a preview of what the house actually costs to own.
Highlights
- The TRIM notice is not a bill.
- The Hillsborough County Tax Collector and its counterparts in Pinellas, Pasco, and Hernando send the actual bill in November, discounted 4 percent for payment that month.
- Just value, assessed value, and taxable value appear on the same page and mean three different things. The gaps between them account for most of the confusion homeowners bring to the county property appraiser’s office in August.
- Petitions to the Value Adjustment Board (VAB) are filed on Florida Department of Revenue Form DR-486, within 25 days of the mailing date printed on the notice.
- Buyers: the taxes shown belong to the seller’s exemptions and the seller’s capped assessment.
- Non-ad valorem assessments occupy their own section, including Community Development District (CDD) debt service, stormwater, fire, and solid waste charges.
Is a TRIM notice a bill?
No. The county tax collector sends bills, and those arrive in November. The county property appraiser sends the Notice of Proposed Property Taxes in August, and nothing on it asks for payment. What it asks for is attention within a short window.
The page sets last year’s taxes beside two projections for the coming year. One shows what you would owe if every taxing authority held its budget flat. The other shows what you would owe under the budgets those authorities have actually proposed. Printed alongside are the hearing dates and locations where those budgets get adopted, which is the only point at which a proposed rate can still be argued down in public.
Why are there three different values on the page?
Just value is market value as of January 1, set by the county property appraiser. Assessed value is just value after statutory caps have been applied. On homestead property, the Save Our Homes cap under Florida Statute 193.155 holds the annual increase to 3 percent or the change in the Consumer Price Index, whichever comes in lower. Non-homestead property carries a 10 percent cap, and that one does not apply to school district millage.
Subtract exemptions from assessed value and what remains is taxable value. That is the only figure the millage rate ever touches. Millage is quoted per $1,000, so a rate of 6.5 mills against $300,000 in taxable value produces $1,950 owed to that one authority. Your notice lists several of them: county, school board, municipality, water management district, and whatever independent districts apply where you live.
Why does a buyer’s tax bill climb after the first year?
Because the notice the buyer read during the showing was describing the seller’s tax situation. Florida Statute 193.155 requires homestead property to be reassessed at full just value on the January 1 following a change of ownership. A seller who purchased fifteen years ago may be sitting on an assessed value well below what the house would sell for today, protected by Save Our Homes and reduced again by the Homestead Exemption.
None of that protection travels with the deed. The buyer takes the property at market value, with no accumulated cap benefit. Until the new owner files Form DR-501 with the county property appraiser by March 1, there is no exemption either. Buyers moving from another Florida homestead can transfer up to $500,000 of accrued Save Our Homes benefit using Form DR-501T, but only by claiming it on that same filing.
We put those numbers in front of buyers before an offer gets written. Pulling the property appraiser record and running a projected taxable value takes a few minutes and often reshapes what a monthly payment looks like. The Florida Realtors and The Florida Bar (FAR/BAR) contract prorates taxes at closing using whatever figures exist that day, and those still reflect the seller’s exemptions, so the closing statement predicts almost nothing about year two.
What should a seller do when the notice arrives mid-listing?
Read the just value against your asking price. When the property appraiser’s number sits noticeably above what comparable sales support, buyers will bring it up, and their lender’s underwriting will absorb it as an assumption. When the number sits below your price, expect a different conversation, usually about why.
Sellers who believe the valuation is wrong can request an informal conference with the county property appraiser’s office. Many disputes end there. The formal route runs through Chapter 194 of the Florida Statutes: Form DR-486 filed with the Clerk of the Value Adjustment Board, a filing fee, and a hearing before a special magistrate. Both paths depend on the same 25-day clock.
Which charges are not based on value?
Non-ad valorem assessments are levied by unit rather than by valuation, which means they do not shrink when an assessment gets reduced. Community Development District debt service in a master-planned community can add several thousand dollars a year and continues until the bonds are retired. Solid waste, fire, and stormwater assessments land in the same section.
Two houses listed at identical prices in different communities can carry meaningfully different annual costs, and the difference is usually sitting in this part of the notice rather than in the millage rates above it.
Where does a real estate agent fit in?
Property tax in Florida runs on fixed dates. The VAB petition window closes 25 days after the notice is mailed. Homestead and portability filings are due March 1. A missed date is not a matter of judgment or negotiation, and the usual remedy is waiting until the following year to try again.
The decisions here belong to you. Whether to petition, how to price against an assessment you disagree with, whether a CDD community still fits the budget once the debt service is added: those are yours, and a certified public accountant or attorney may belong in the conversation when a formal petition is on the table. What we handle is the discipline of getting the information to you while the dates are still open. We pull the county property appraiser record during the search. Before an offer goes out, the exemption reset goes in writing. After closing, the March 1 filing sits on a calendar someone is actually watching. One dedicated agent from your first showing to your closing, working the same file the whole way.
The version of this that goes wrong looks like a buyer who budgeted around a seller’s $2,800 tax bill, opened a $6,400 bill fourteen months later, and had already blown past the March 1 deadline that would have softened it. Every piece of that was visible in August on a document that arrived in the mail.
Synergistic Real Estate is a certified woman-owned business based in Tampa, with deep roots across Tampa Bay and a Midwestern work ethic that shows up in every step of the buying and selling process. We are committed to timely and responsive communication, available by phone, text, and email. When you call, we answer.
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