How Florida TRIM notices work, and the 25 days that matter

What TRIM stands for

TRIM means Truth in Millage. Florida law requires every county to send owners a Notice of Proposed Property Taxes before local governments set their tax rates. The idea is simple: you see your value and what each taxing authority plans to charge, while there’s still time to push back.

The problem is that it looks like a bill, so a lot of people set it aside. That’s the expensive mistake, because the window to challenge your value opens and closes off this notice.

How to read it

• Market value: what the property appraiser says your property was worth on January 1. This is the number you can challenge.
• Assessed value: market value after caps. Increases are limited to 3% a year for homesteads and 10% for most non-homestead property.
• Exemptions: every exemption applied, such as homestead.
• Taxable value: assessed value minus exemptions. Your taxes are calculated from this.
• Proposed millage and taxes: each taxing authority’s proposed rate and what you’d pay.
• Budget hearings: the dates where you can speak up about the proposed rates.
• Non-ad valorem assessments: flat charges such as fire, trash or stormwater.

Two different fights

The TRIM notice gives you two places to act, and they’re not the same:

• The rate is set by local governments. You can speak at their budget hearings, but you can’t appeal it.
• The value is set by the property appraiser, and you can challenge it. That’s where the money is for most commercial owners.

The 25-day deadline

To challenge your value, you file a petition with the county’s Value Adjustment Board within 25 days of the date the TRIM notice was mailed. Not received. Mailed. Many owners first ask the property appraiser for an informal review, which can fix a problem without a hearing, but it doesn’t extend the deadline. Once the roll is certified, the appraiser’s ability to correct your value is limited.

Then the real bill arrives

Tax bills go out on or around November 1. Florida rewards early payment: 4% off in November, 3% in December, 2% in January and 1% in February. Pay by March 31 with no discount. After that, taxes are delinquent. Here’s what happens if you miss a payment.

Don’t forget personal property

If you own a business in Florida, you also file a tangible personal property return each spring. Old equipment on that return shows up on the TRIM notice for your business account too. That’s where ghost assets hide.

How Reserve handles TRIM season

When TRIM notices land, Levy, our agentic AI, reads every one for your portfolio, compares each value with market evidence and flags the ones worth petitioning. Reserve Tax Group files the petitions inside the 25 days and handles the hearings.

Sources

• Sarasota County Property Appraiser, TRIM notice
• Florida Department of Revenue, tax collection calendar

This article is general information, not tax or legal advice. Rules and deadlines change and vary by county. Check with the appraisal district or assessor, or ask us, before you file.