How to Appeal Your Miami-Dade Property Tax Assessment (2026)

Last updated: July 2026

If you own property in Miami-Dade and believe your assessment is too high, the appeal path runs on a fixed calendar. In the last week of August the property appraiser mails your TRIM notice, the Notice of Proposed Property Taxes. From the date that notice is mailed you have 25 days to file a petition with the Value Adjustment Board (VAB), and the county clerk charges $15 per parcel to file [1]. Before you file, you can call the property appraiser's office for an informal review, which sometimes resolves the number without a hearing. A Miami-Dade property tax appeal challenges the market value the appraiser assigned to your parcel, not the millage rate the taxing authorities set and not your exemptions. If you prevail, the assessed and taxable values drop, and your carrying cost for that year falls with them. The rest of this post walks the process in order: reading the notice, the informal review, the petition and its deadline, the evidence exchange and special-magistrate hearing, and how the Save Our Homes cap changes the math.

Start with the TRIM notice in August

TRIM stands for Truth in Millage. The notice is not a bill. It is an estimate that combines your property's value, the exemptions on file, and the proposed tax rates from each taxing authority. It also prints the dates of the public budget hearings and, critically, the deadline to challenge your value. Read it the day it arrives. The 25-day window is short, and the VAB counts from the mailing date, not the day you happened to open the envelope.

Reading assessed, market, and taxable value

Three numbers on the notice do different jobs, and an appeal only reaches one of them.

Market value, also called just value, is the appraiser's estimate of what a willing buyer would pay a willing seller. This is the number a Miami-Dade property tax appeal actually contests.
Assessed value is market value after any assessment cap is applied. On a homesteaded property the Save Our Homes cap can hold this well below market value.
Taxable value is assessed value minus exemptions, such as the homestead exemption. Your tax is calculated on this figure.

The practical test is simple. If the market value on the notice is higher than what your property would realistically sell for, you have a factual basis to appeal. If market value already looks fair, an appeal will not lower your bill, and the cap or exemptions are doing the work instead.

Step one: the informal review with the property appraiser

Before filing anything with the VAB, the property appraiser's office encourages you to call or visit first [3]. This informal review is free and often faster than a hearing. You explain why the market value looks high, and you bring support: a recent appraisal, a closing statement if you bought recently, photographs of condition issues, or sales of comparable properties. If the appraiser agrees the value is off, the office can correct it directly, and you avoid the petition entirely.

The informal review does not pause the 25-day clock. If the conversation is still open as the deadline approaches, file the VAB petition anyway to preserve your rights. You can always withdraw it later if the appraiser resolves the value on their own.

Step two: file a VAB petition within 25 days

If the informal route does not settle the number, you file a petition with the Value Adjustment Board through the Miami-Dade Clerk. The petition must be received, not merely postmarked, no later than 25 days after the TRIM notice is mailed [1]. In a typical year that lands in mid-September. Miss it and you generally wait until the next tax year.

The filing fee is $15 per parcel, identified by folio number [1]. Condominium and cooperative associations filing a joint petition on behalf of multiple units pay a reduced fee per folio. You can file online through the clerk's VAB portal or on paper. A licensed agent or attorney may file on your behalf, but for a single homesteaded property many owners handle it themselves.

The evidence exchange and special-magistrate hearing

A VAB petition is decided at a hearing before a special magistrate, an appraiser or attorney the board retains to weigh value disputes. Both sides present, and the process is structured around an evidence exchange.

At least 15 days before your hearing you must give the property appraiser a list and summary of the evidence you intend to present, with copies of your documentation [3]. In Miami-Dade, evidence is uploaded into the clerk's VAB system by the morning before the scheduled hearing. If you request the appraiser's evidence in writing, the office must provide it, which lets you see how they built the value before you walk in.

Build your case the way an underwriter would defend a number. The strongest evidence is closed sales of genuinely comparable parcels near the valuation date, adjusted for differences in size, condition, and location. A recent arm's-length purchase of the subject property itself is persuasive. Condition problems that a mass-appraisal model would miss, such as deferred maintenance or a functional issue, belong in the file with photos. The magistrate issues a recommended decision, the full board adopts it, and if the value is reduced the taxable value and your bill follow.

How Save Our Homes and homestead caps interact with an appeal

This is where many Miami-Dade owners talk themselves out of an appeal that would not have helped anyway, and it is worth understanding before you spend the time.

On a homesteaded property, the Save Our Homes benefit caps the annual increase in assessed value at the lower of 3 percent or the change in the Consumer Price Index. The Florida Department of Revenue set the 2026 CPI adjustment at 2.7 percent [2]. Non-homestead property, including second homes, rentals, and commercial parcels, is held to a separate 10 percent annual cap on assessed value [2].

If you have owned a homesteaded property for years, the cap may already hold your assessed value far below market value. In that situation, even a successful challenge to market value may not move your assessed or taxable value at all, because the cap, not market value, is setting your assessment. An appeal helps most when market value has fallen to or below your capped assessed value, or when the cap has not built up much cushion yet, which is common right after a purchase when assessed value resets to the sale price. Non-homestead owners, whose cap is looser at 10 percent, more often see the market-value number driving their assessment directly, so an appeal reaches the bill more reliably.

The underwriting lens: when an appeal is worth pursuing

Treat the decision as a small underwriting exercise rather than a matter of principle. The cost side is modest: a $15 filing fee plus your time, or a contingency fee if you hire a representative. The benefit side is the tax you would save, which is the value reduction multiplied by the combined millage rate, repeated only for that tax year unless the over-assessment persists.

Run the numbers. If your market value looks 10 to 15 percent high on a property where market value actually drives the assessment, the annual saving can be meaningful and the filing fee is trivial by comparison. If the overstatement is small, or if Save Our Homes already caps you well below market, the expected saving may not justify the hearing. Over-assessment is not just a tax question either. It inflates the carrying cost that a buyer underwrites when they evaluate your property, so correcting an inflated value can matter at resale as well as on this year's bill. If you are weighing a sale and want a defensible read on where your value actually sits, a current home valuation gives you the market anchor the appraiser's number should be measured against.

Frequently asked questions

What is the deadline to appeal my Miami-Dade property taxes?

The VAB must receive your petition no later than 25 days after the property appraiser mails the TRIM notice, which usually goes out in the last week of August [1]. The board counts receipt, not postmark, so file with time to spare rather than mailing on the final day.

How much does it cost to file a VAB petition?

The Miami-Dade Clerk charges $15 per parcel, identified by folio number, with a reduced per-folio fee for qualifying joint condominium and cooperative petitions [1]. The fee is nonrefundable, but it is small relative to the potential tax saving on an over-assessed property.

Can I appeal if I have a homestead exemption and Save Our Homes cap?

Yes, but check whether it will help first. If Save Our Homes already holds your assessed value below market value, lowering market value may not change your taxable value, since the cap is setting your assessment [2]. An appeal moves the bill mainly when market value, not the cap, is driving your number.

Do I have to hire someone to appeal?

No. Many owners of a single property handle the informal review and the VAB petition themselves. Tax representatives and attorneys, often on contingency, are common for portfolios or complex commercial parcels where the stakes justify the fee. You can start with the free informal review at the property appraiser's office and decide from there.

What evidence works best at the hearing?

Closed sales of comparable properties near the valuation date, a recent arm's-length purchase of the property itself, and documented condition problems the mass-appraisal model would miss. Submit your evidence list to the property appraiser at least 15 days before the hearing [3], and request their evidence so you know how the value was built.

If you want to talk through whether a challenge pencils out on your specific parcel, that is a conversation I am glad to have. You can also browse more Miami market explainers on the blog or start with the FAQ.

Gabriel

Sources

Gabriel A. Moyers, PA. eXp Realty. Florida License #3407280. Equal Housing Opportunity. This article is general information as of July 2026 and is not legal, tax, or financial advice. Verify current figures against authoritative sources before acting.