Florida Property Tax Cycle Explained: What is a TRIM Notice and Why Does It Matter?

Florida’s property tax season is fast approaching—and with it comes one of the most critical documents your clients will receive all year: the TRIM notice. These notices, along with approaching appeal deadlines and shifting tax policy discussions, will shape how you advise clients heading into 2025.

Whether your clients own commercial properties, residential portfolios, or manage large real estate holdings, this is the time to proactively review valuations, assess risk, and prepare for appeals. Below is an advisor’s guide to the Florida property tax cycle, trends shaping the 2025 landscape, and where CPAs can provide the most value.

Key Dates in the Florida Property Tax Calendar

Missing a property tax deadline can result in missed savings and limited appeal options. Here’s what CPAs and advisors need to track:

• Assessment Date (January 1): Property value is based on its condition and market value as of January 1. Any new construction, renovations, or significant changes to the property up to this date are factored into the assessment.
• TRIM Notices (mid- to late-August): The Truth in Millage (TRIM) notice provides a preview of the client’s tax liability: assessed value, exemptions, and proposed millage rates. This is not a bill-but it is the only formal notice before appeals are due.
• Appeal Deadline (September): Clients typically have 25 days after the TRIM mailing date to appeal with the Value Adjustment Board (VAB). Miss this window, and the assessment stands for the year.
• Tax Bills (November): Final tax bills go out around November 1. Final bills are mailed. Clients receive a 4% discount if paid in November, decreasing each month through February.

What Is a TRIM Notice and Why Does It Matter?

In 1980, Florida passed the Truth in Millage (TRIM) Act to increase transparency around property taxes. Under this law, every county must issue TRIM notices in the same format to all property owners each year.

The TRIM notice breaks down:

• The client’s current and previous assessed values
• A breakdown of property tax obligations by jurisdiction
• Comparisons of last year’s and current proposed tax rates
• All exemptions applied (or not applied)

These notices are mailed in mid-to-late August. For CPAs, these notices are an early intervention point. If the value looks inflated or an exemption is missing, your client may need to file an appeal with the local Value Adjustment Board (VAB).

Missing that window closes your ability to challenge the value for the entire tax year.

Once you file, a formal review process begins:

• 25 days before the hearing: The taxpayer is notified of the date.
• 15 days before the hearing: Taxpayer must provide evidence to the assessor.
• 7 days before the hearing: The assessor must share their evidence.
• In most counties, a special master (usually a certified general appraiser) hears the case and issues a written judgment.

Advisors can also work informally with assessors prior to hearings, especially when supported by strong data (e.g., comps, market studies, appraisals). Even small reductions in assessed value can significantly impact cash flow.

Given that Florida has some of the highest property tax rates in the country, even a modest reduction in assessed value can significantly improve cash flow.

Recent Florida Property Tax Trends

Florida’s property tax environment has been anything but static over the last five years. Here’s what’s shaping the market in 2025:

1. Rapid Growth, Then a Slowdown
   Florida’s population boom, fueled by pandemic migration and investor demand, drove property taxes up nearly 60% in five years. However, counties like Miami-Dade are seeing slower growth (8.5% this year vs. 10.7% last year).
2. Rising Rates and Mounting Pressure in Tallahassee
   Instead of meaningful relief, Florida property owners are staring down higher property tax burdens in 2025. Counties are pushing millage rates higher to cover school funding, public safety, and storm recovery, even as property values remain elevated.
3. Affordability Shock
   Some homeowners are learning the hard way how easily property taxes can skyrocket. One case in Pompano Beach saw taxes jump from $15,000 to $90,000 a year after a major renovation reset the assessment.

Target Audiences for Property Tax Education

TRIM season is more than a compliance window—it’s a prime opportunity to demonstrate value through education and proactive planning. Key client audiences include:

• Real Estate Professionals – Help them model affordability and deal timing
• Developers & Builders – Flag reassessment risk for new builds and renovations
• Senior/Low-Income Clients – Review eligibility for underutilized exemptions
• Commercial & Industrial Property Owners – Identify appeal opportunities

What’s Coming Up in 2025: Your Action Plan

• Late August: Review all client TRIM notices for appeal potential
• Mid-September: File appeals by the deadline (about 25 days after TRIM notices)
• November 1: Confirm early payment of tax bills to maximize discounts
• Ongoing: Monitor legislative proposals as rebates, exemptions, and reforms could change the tax landscape

TRIM Notices Are Your First Chance to Act

Florida’s property tax cycle is predictable, but far from simple. TRIM notices are a call to action for CPAs and clients. CPAs and advisors who engage early, reviewing TRIM notices, educating clients, and initiating appeals where warranted, can significantly improve outcomes.

With new tax proposals on the horizon and a cooling market in some areas, 2025 could be a pivotal year for homeowners, investors, and industry professionals alike. Our Property Tax Services team partners with CPAs across the country to provide valuation reviews, appeal support, and compliance guidance. Let us help you protect your clients’ bottom lines this property tax season.