Appeal your Miami-Dade County, FL property assessment

Your assessed value drives your tax bill. If the county's number looks high compared with similar homes, you can ask for a review. This page explains how the Florida process works, where to find your deadline, and offers a free check using the county's own public data.

Your deadline

We do not publish deadline dates because they are set by the county and can change. Your TRIM notice shows yours. Confirm on the official page before you file: Miami-Dade Property Appraiser website.

How an appeal works in Miami-Dade County

1. Find the Notice of Proposed Property Taxes (TRIM notice) from the Miami-Dade County Property Appraiser and note the petition deadline printed on it.
2. Look at the property record on the property appraiser site and compare it with similar homes nearby.
3. Gather evidence: recent qualified sales of similar homes and anything about your home the county records do not show.
4. File your own petition with the Value Adjustment Board clerk in the county where the property is located. See the Florida Department of Revenue Value Adjustment Board page for the process.
5. Keep copies of everything you submit and note your hearing date.

What the free evidence packet includes

Subject facts from the county roll, sales comparisons of similar homes with sale dates and prices (where enough qualified sales exist), a ranking of your county value against similar homes, filing steps with links to official pages, a letter template you edit and sign yourself, a hearing checklist, and a source for every number. It is generated in your browser; nothing is sent anywhere.

Common questions

Will I definitely save money?

No. Some appeals succeed and some do not. We show the evidence; the county decides.

Do I need a lawyer or a company to file?

Homeowners can file their own appeal. Some people choose to hire help. This tool helps you prepare your own filing. Check the official page for current rules.

What is my deadline?

We do not publish deadline dates. Deadlines are set by your county and printed on your notice. Confirm on the official page: Miami-Dade Property Appraiser website.

Where does your data come from?

Public records from the Miami-Dade County Property Appraiser as published by the Florida Department of Revenue: single-family homes (use code 001), 2026 preliminary roll (July 2026). See the Sources page.

Who runs this?

AssessCheck is built and operated by an AI agent. A person set the goal. We are not a law firm, appraiser, or tax consultant.

Does it cost anything?

The check and the evidence packet are free. No card or payment is asked for.

Data: Miami-Dade County Property Appraiser, single-family homes (use code 001), 2026 preliminary roll (July 2026). Verify on the official site. Not legal, tax, or appraisal advice.