Property tax calculator Miami-Dade: how to estimate what you owe

Last updated 2026-07-09

How does Miami-Dade's property tax system actually work?

Miami-Dade runs a millage-rate system. The Property Appraiser sets your assessed value, Florida's Save Our Homes cap limits how fast that value can climb, and you subtract your exemptions to reach a taxable value. That taxable value gets multiplied by every millage rate that applies to your address. Those rates come from separate taxing authorities stacked one on top of another.

The main layers are the Miami-Dade County general fund, the Miami-Dade School Board, your municipality if you live in one (Miami, Hialeah, Coral Gables, and so on), and a set of special districts like the South Florida Water Management District and the Children's Trust. Each layer sets its own millage on its own schedule in August and September.

One mill equals $1 of tax per $1,000 of taxable value. Taxable value of $300,000 at a combined 20 mills is a $6,000 bill. The math is easy. Getting the two inputs right is the part most homeowners miss.

The Property Appraiser and the Tax Collector are two different offices. The Appraiser (Pedro J. Garcia's office) sets value and grants exemptions ^[1]. The Tax Collector prints bills and takes payments. Fighting your assessment means dealing with the Appraiser, not the Collector.

What is the Miami-Dade millage rate for 2024?

Miami-Dade sets its rates every fall for the tax year that began January 1. For 2024 the county general operating millage was 4.6669 mills ^[2]. That is the countywide base. It is one slice of your total bill, not the whole thing.

The table below breaks out the major millage components a typical homeowner in unincorporated Miami-Dade pays. Live inside a city and you add that city's rate on top.

Taxing Authority	2024 Millage (per $1,000)
Miami-Dade County General	4.6669
Miami-Dade School Board (operating)	3.9480
Miami-Dade School Board (debt)	0.2480
South Florida Water Mgmt District	0.1289
Children's Trust	0.5000
Okeechobee Basin (SFWMD)	0.0811
Florida Inland Navigation District	0.0320
Library District	0.2840
Fire Rescue (unincorporated)	2.4200
Unincorporated MSTU	1.9450
Approximate unincorporated total	~14.3 mills

These figures come from the 2024 Miami-Dade Notice of Proposed Property Taxes (the TRIM notice) schedules ^[2]. City of Miami residents add roughly 7.5 to 8.5 mills for the city rate. Coral Gables runs around 5.6 mills. Hialeah lands near 8.0 mills. Your exact total depends entirely on your address.

The county posts a searchable millage file every year. The surest way to find your own combination is to enter your folio number into the Property Appraiser's online search, which shows last year's breakdown by district ^[1].

How do you calculate your Miami-Dade property tax bill step by step?

Here is the actual calculation, in order.

Step 1: Find your assessed value. The Property Appraiser sets this as of January 1 each year. Look it up for free at the MDPA site by entering your address or folio number ^[1].

Step 2: Apply the Save Our Homes cap. Florida law caps the yearly increase in assessed value for a homesteaded property at 3% or the change in the Consumer Price Index, whichever is lower ^[3]. For 2024 assessments the cap hit the 3.0% ceiling because CPI ran above 3%. If you bought recently, your assessed value probably equals market value. The cap only kicks in after your first full year of homestead.

Step 3: Subtract your exemptions. The standard homestead exemption is $25,000 off assessed value. A second $25,000 exemption (the "additional homestead") covers the value band between $50,000 and $75,000 and applies to everything except school taxes ^[3]. A homesteaded property worth more than $75,000 can remove up to $50,000, but only $25,000 counts against school millage.

Step 4: Multiply by your millage rate. Take the taxable value, divide by 1,000, multiply by your combined millage.

Example calculation:

• Market value: $500,000
• Assessed value (after Save Our Homes cap): $420,000
• Minus homestead exemptions: $420,000 - $50,000 = $370,000 taxable (county, city, special districts)
• School taxable value: $420,000 - $25,000 = $395,000
• County/city/special district taxes: $370,000 / 1,000 x 14.3 mills = $5,291
• School taxes: $395,000 / 1,000 x 4.196 mills = $1,657
• Estimated total: ~$6,948

That is a rough estimate. For a precise number tied to your folio, use the county's own Tax Estimator ^[4].

Where is the official Miami-Dade property tax estimator tool?

The Miami-Dade Property Appraiser runs a free Tax Estimator at https://www.miamidade.gov/pa ^[1]. Search your address or folio number, then look for the "Tax Estimator" link on your property detail page. The tool lets you adjust exemptions and shows a running estimate by taxing authority.

The Miami-Dade Tax Collector has a separate payment and record lookup at https://www.miamidade.gov/taxcollector ^[4]. That site shows your actual billed amount after the Appraiser's values are certified, plus your payment history. It does not let you model different exemption scenarios the way the Appraiser's estimator does.

New buyers should use the Appraiser's estimator. It shows the gap between the seller's tax bill, which may reflect years of Save Our Homes savings, and what you owe in year one, when the cap resets to market value and your bill can jump hard.

What exemptions reduce your Miami-Dade property tax bill?

Florida stacks up more property tax exemptions than most states. Claiming all the ones you qualify for is the fastest legal way to cut your bill without an appeal.

Homestead exemption. The base exemption is $25,000 off assessed value for your primary residence ^[3]. The additional $25,000 (covering the $50,000 to $75,000 band) brings the total to $50,000 for most taxes. File by March 1 of the tax year. Miss that date and you lose the exemption for the entire year.

Senior exemption. Florida lets counties adopt an extra homestead exemption of up to $50,000 for owners 65 or older whose household income falls below a set threshold (adjusted yearly; $36,196 for 2024) ^[3]. Miami-Dade has adopted it. A qualifying senior can carry up to $100,000 in combined homestead exemptions.

Disability and veteran exemptions. A total and permanent disability exemption can wipe out the full assessed value. Honorably discharged veterans with a service-connected disability of 10% or more get an added $5,000 exemption. A 100% disabled veteran can receive a complete exemption ^[3].

Widow/widower exemption. $500 off assessed value. Tiny, but free.

Agricultural classification. Property in bona fide agricultural use can be assessed at agricultural value instead of market value, which can be far lower. This is a classification, not an exemption, and it needs its own application.

Every exemption requires an application filed with the Property Appraiser. None apply automatically. The deadline for most is March 1 ^[1]. For how exemptions fit into your broader bill, the piece on miami dade property taxes covers the wider picture.

What is the Save Our Homes cap and how does it affect your calculation?

Save Our Homes is probably the biggest single driver of tax inequality in Miami-Dade. Article VII, Section 4 of the Florida Constitution, put into practice through Section 193.155 of the Florida Statutes, caps the yearly increase in a homesteaded property's assessed value at 3% or the CPI change, whichever is lower ^[3].

In a market that climbs like Miami's, a longtime owner might sit at a $900,000 market value with a Save Our Homes assessed value of $400,000 because they bought 20 years ago. The neighbor who bought the identical house last year pays on full market value. When the longtime owner sells and moves, the accumulated gap becomes a "portability benefit" they can carry to the next house.

Portability lets you move up to $500,000 of your accumulated Save Our Homes benefit to a new Florida homestead ^[3]. Apply for it when you apply for homestead on the new property, and file within three years of January 1 of the year you left your old homestead. Model this carefully. A $300,000 portability benefit on a new home assessed at $700,000 drops taxable value to $400,000 before exemptions, worth roughly $3,000 to $6,000 a year depending on your millage.

Non-homestead properties (rentals, second homes, commercial) get a 10% annual cap under Amendment 1. No portability applies, and the cap resets to full market value every time the property changes hands ^[3].

How does Miami-Dade's effective tax rate compare to other large counties?

Context matters when you read your bill. Florida has no state income tax, so local governments lean harder on property taxes to make up the difference.

The Tax Foundation's state and local property tax data and the Lincoln Institute of Land Policy's 50-state comparison both put Florida's effective property tax rate on owner-occupied homes below the national average, largely because of homestead exemptions and Save Our Homes ^[5][6]. The Lincoln Institute reported Florida's average effective rate on owner-occupied housing at roughly 0.86% in recent years, below the national average near 1.10%.

Miami-Dade's combined millage sits high within Florida because of its city layers and special districts. A non-homesteaded property in Miami can face an effective rate closer to 1.5 to 2.0%.

County/City	Approx. effective rate (owner-occupied)
Miami-Dade (homesteaded, longtime owner)	0.4 to 0.7%
Miami-Dade (new purchase, no cap)	1.2 to 1.8%
LA County	~0.7%
NYC (Class 1)	~0.9%
Cook County (Chicago)	~1.8%
National average	~1.1%

The wide Miami-Dade range is all Save Our Homes. See how la county property tax and nyc property tax stack up if you are benchmarking across markets.

When are Miami-Dade property tax bills sent out and when are they due?

The timeline repeats every year in Florida under Chapter 197 of the Florida Statutes ^[7].

• August, September: TRIM notices mailed. This is your proposed assessment and tax estimate, not the final bill. You get 25 days from the mailing date to file a petition with the Value Adjustment Board (VAB) if you want to appeal ^[7].
• November 1: Tax bills mailed by the Tax Collector.
• November 30: Last day to pay for the 4% early payment discount.
• December: 3% discount.
• January: 2% discount.
• February: 1% discount.
• March 31: Final deadline. Taxes go delinquent April 1 ^[7].

Delinquent taxes accrue interest at 18% a year (1.5% per month) under Florida law, and the county can eventually sell a tax certificate against the property ^[7]. Never let a bill go delinquent while you wait on an appeal. Pay the uncontested portion and collect a refund if you win.

For payment logistics, including online options, the guide on online tax payment for property walks through the process county by county.

How do you appeal your Miami-Dade property assessment if it seems too high?

Your appeal starts with the TRIM notice. You get 25 days from the mailing date to file a petition with the Miami-Dade Value Adjustment Board ^[8]. The TRIM notice prints your exact deadline. Miss it and your only path left is a circuit court lawsuit, which is expensive and rarely worth it for a homeowner.

Before you file a formal petition, call or visit the Property Appraiser for an informal conference. The office handles a heavy volume of informal reviews each fall and sometimes corrects errors on the spot, no hearing required. Bring evidence. Comparable sales from the prior six months, any appraisal you already have, photos of condition problems, anything that shows the Appraiser got the number wrong.

If the informal review does not settle it, file with the VAB. The filing fee is $15 per parcel, residential or tangible personal property ^[8]. You then get a hearing before a special magistrate, usually a licensed appraiser or attorney. The burden is on you to show the assessment exceeds just value. If the Appraiser's value tops market by more than 15%, Florida law shifts the burden to the county.

The evidence that wins VAB hearings is recent arm's length sales of genuinely comparable properties (the "comps") and, for condition problems, contractor estimates or inspection reports. Build that case yourself and you skip paying a contingency firm 30 to 40% of your savings. TaxFightBack's DIY appeal kit spells out exactly what to gather and how to present it at a hearing.

For how the process unfolds after you file, the overview on miami dade property taxes covers timelines and typical outcomes.

Does buying a home in Miami-Dade reset your property taxes?

Yes, and hard. When a property sells, the Save Our Homes cap resets to zero. The Property Appraiser reassesses at full market value as of January 1 following the sale ^[3]. If the previous owner banked 15 years of cap savings, their taxable value might have been half the market value. Your first-year bill tracks roughly what you paid, not what they paid.

This blindsides buyers of Miami condos and single-family homes who used the seller's tax bill in their affordability math. Agents are supposed to disclose it, but the gap can run $4,000 to $10,000 a year on a typical deal in a neighborhood like Coconut Grove or Brickell.

The fix is simple. Before you close, open the Property Appraiser's Tax Estimator, enter the purchase price as the new assessed value, subtract your expected exemptions, and multiply by the current millage for that address. That gives you a realistic first-year number. Planning to bring portability from a prior Florida homestead? Enter the expected benefit too.

One rule of thumb worth remembering: every $100,000 of taxable value in a mid-millage Miami-Dade zone (around 19 mills) costs roughly $1,900 a year in property taxes.

What are the most common mistakes homeowners make with Miami-Dade property taxes?

Missing the March 1 homestead deadline is the single most expensive mistake. Move into a new home in 2024, forget to file by March 1, 2025, and you lose the homestead exemption for all of 2025. That costs most owners $1,000 to $3,000 in one year, and it delays your Save Our Homes cap by a full year on top ^[1][3].

The second mistake is skipping portability. Thousands of Florida owners who move within the state never file Form DR-501T and walk away from a large benefit. The Property Appraiser cannot apply it for you.

Third: accepting the TRIM notice without checking the comps. The Appraiser's mass appraisal models sometimes spit out outlier values, especially on unusual properties or in fast-changing neighborhoods. The notice looks official, but it is a proposal, not a final number, and you have the right to contest it. Research on mass appraisal accuracy in large Florida counties (Lincoln Institute ^[6]) finds error rates above 10% are common for individual properties even when the model calibrates well in aggregate.

Fourth: paying a contingency firm 30 to 40% of recovered taxes when the VAB itself costs $15 to file and the evidence rules favor a prepared owner. The process is built to work without professional help for most residential cases.

To see how other large counties handle similar issues, comparing your experience to hennepin-county-property-tax or the broader explainer at property-tax-taxation puts Miami-Dade's quirks in perspective.

What happens if you disagree with the VAB decision?

If the Value Adjustment Board's special magistrate rules against you, you can appeal to the circuit court under Florida Rule of Civil Procedure 1.630 ^[9]. The court asks whether the Appraiser's value is supported by competent substantial evidence, a fairly deferential standard. Most homeowners stop at the VAB.

Circuit court makes economic sense mainly for high-value commercial properties, where even a 5% reduction is tens of thousands of dollars. On a $500,000 house, attorney fees and court costs usually swallow the potential savings.

One option people overlook: if you find a factual error (wrong square footage, wrong property class, a feature that does not exist) after the appeal window closes, you can file for a correction under Section 197.122 of the Florida Statutes. Factual errors are not time-barred the way value disputes are. Call the Property Appraiser directly and document the discrepancy in writing.

Frequently asked questions

What is the current property tax rate in Miami-Dade County?

There is no single rate. Miami-Dade's 2024 countywide general millage is 4.6669 mills, but your total bill combines county, school board, city, and special district millage. In unincorporated areas the combined rate runs around 14 to 16 mills. Add a city layer and you reach 18 to 23 mills depending on the municipality. One mill equals $1 per $1,000 of taxable value.

How do I find my Miami-Dade property folio number?

Go to the Miami-Dade Property Appraiser's website at miamidade.gov/pa and use the property search tool. Enter your street address and the folio number appears on your property detail page. The folio number also prints on your TRIM notice and your annual tax bill. You need it to use the Tax Estimator and to file a VAB petition.

How much is the homestead exemption worth in Miami-Dade?

The standard homestead exemption removes $25,000 from assessed value for all taxes, plus an additional $25,000 for the value between $50,000 and $75,000 for all taxes except school board millage. That second $25,000 saves roughly $100 a year on school taxes relative to a full $50,000 across all millage. On a combined 20-mill rate, the full $50,000 exemption saves about $1,000 a year.

When is the deadline to file for homestead exemption in Miami-Dade?

March 1 of the tax year is the deadline under Florida law. To get the exemption on your 2026 tax bill, file by March 1, 2026. Miss it and you can apply late in limited situations (a good-faith clerical error, for example), but the Property Appraiser can deny late applications. File early, ideally within weeks of closing on your home.

What is Save Our Homes and how does it lower my Miami-Dade tax bill?

Save Our Homes is a Florida constitutional amendment (Article VII, Section 4) that caps annual increases in a homesteaded property's assessed value at 3% or the CPI change, whichever is lower. In a rising market, your assessed value can fall far below market value over time. This saves longtime owners thousands a year but hits new buyers with a sharp increase in year one, because the cap resets at purchase.

Can I transfer my Save Our Homes benefit if I move within Florida?

Yes. Florida's portability provision lets you transfer up to $500,000 of accumulated Save Our Homes benefit to a new Florida homestead. File Form DR-501T within three years of January 1 of the year you abandoned your previous homestead. Apply at the same time as your new homestead exemption. The Miami-Dade Property Appraiser can calculate your benefit before you file.

How do I appeal my Miami-Dade property assessment?

File a petition with the Miami-Dade Value Adjustment Board within 25 days of your TRIM notice mailing date (usually late August). The filing fee is $15. Before filing, try an informal review with the Property Appraiser. Bring comparable sales, inspection reports, or any evidence the assessed value exceeds market value. A special magistrate hears your case, usually in fall or winter. You can represent yourself.

What is the TRIM notice and what should I do when I get one?

TRIM stands for Truth in Millage. It is a proposed assessment and tax estimate mailed by late August each year. Check the assessed value against recent comparable sales in your neighborhood. If it looks high, you have 25 days from the mailing date to file a VAB petition. Also confirm your exemptions are listed correctly. The TRIM notice is not your tax bill; the actual bill arrives November 1.

Do Miami-Dade seniors get a property tax break?

Yes. Homeowners 65 or older who meet a household income threshold (adjusted yearly; roughly $36,196 for 2024) may qualify for an additional homestead exemption of up to $50,000 beyond the standard exemption. Miami-Dade has adopted this option under Section 196.075 of the Florida Statutes. Apply at the Property Appraiser by March 1. Some municipalities offer their own senior exemptions separately.

What happens to my tax bill when I buy a home in Miami-Dade?

The Save Our Homes cap resets to zero at sale. Your assessed value for your first full tax year reflects the purchase price, not the prior owner's capped value. This can double or triple the prior bill. Use the Property Appraiser's Tax Estimator before you close, input the purchase price as the new assessed value, subtract your expected exemptions, and multiply by the address-specific millage to get a realistic year-one estimate.

How are Miami-Dade commercial property taxes different from residential?

Commercial and non-homestead properties get no homestead exemption and no Save Our Homes cap. Florida's non-homestead cap limits annual increases to 10% (Amendment 1), but it resets at every sale. Effective rates on commercial properties in Miami often run 1.5 to 2.0% of market value. The same millage rates apply, but without exemptions the taxable value equals or closely tracks market value.

When is the Miami-Dade property tax bill due?

Tax bills are mailed November 1. Pay by November 30 for a 4% discount, December for 3%, January for 2%, February for 1%. The final deadline is March 31. Taxes go delinquent on April 1 and accrue interest at 18% annually (1.5% per month) under Chapter 197 of the Florida Statutes. The county can sell tax certificates on delinquent parcels starting in May.

Can I pay my Miami-Dade property taxes online?

Yes. The Miami-Dade Tax Collector's website accepts online payments by e-check and credit card. Credit card payments carry a convenience fee (typically around 2.5%). E-check payments are usually free. The Tax Collector's site also lets you set up installment payments if you meet the application deadline, which is April 30 of the current tax year for bills starting the following November.

What is the Miami-Dade Value Adjustment Board and how does it work?

The VAB is a quasi-judicial board that hears property assessment appeals. It includes county commissioners, school board members, and citizen members. In practice, hearings are conducted by special magistrates who are licensed appraisers or attorneys. Magistrates make recommendations; the board votes to approve them. The $15 filing fee covers one parcel. Hearings are informal, and you can present evidence and testimony without a lawyer.

Sources

1. Miami-Dade County Property Appraiser, official property search and exemption information: Property Appraiser sets assessed value and grants exemptions; Tax Estimator and folio search available on this site
2. Miami-Dade County Office of Management and Budget, 2024 Millage Rates: Miami-Dade County 2024 general operating millage set at 4.6669 mills; school board and special district millage rates for TRIM notice schedules
3. Florida Statutes, Chapter 196 (Exemptions) and Chapter 193 (Assessments), including s.193.155 Save Our Homes and s.196.075 Senior Exemption: Save Our Homes cap limited to 3% or CPI; standard and additional homestead exemptions up to $50,000; portability up to $500,000; senior exemption income threshold; 10% non-homestead cap; disability and veteran exemptions
4. Miami-Dade County Tax Collector, official payment and records site: Tax Collector issues bills November 1; early payment discounts; online payment options; installment plan deadline April 30
5. Tax Foundation, State and Local Property Tax Burdens by State: Florida effective property tax rates on owner-occupied housing run below the national average due to homestead exemptions and Save Our Homes
6. Lincoln Institute of Land Policy, 50-State Property Tax Comparison Study: Florida average effective rate on owner-occupied housing approximately 0.86% in recent years; mass appraisal error rates above 10% common for individual properties in large Florida counties
7. Florida Statutes, Chapter 197 (Tax Collections, Sales, and Liens): Tax bills mailed November 1; final deadline March 31; delinquency as of April 1; 18% annual interest on delinquent taxes; tax certificate sales in May
8. Florida Department of Revenue, Property Tax Oversight, Value Adjustment Board process: VAB petition filed within 25 days of TRIM notice mailing; $15 filing fee per parcel; special magistrate hearings; burden shifts to county when value exceeds market by more than 15%
9. Florida Rules of Civil Procedure, Rule 1.630, Review of Final Administrative Orders: Circuit court appeal of VAB decision is available; standard of review is whether Appraiser's value is supported by competent substantial evidence
10. Florida Department of Revenue, Property Tax Oversight, Ad Valorem Tax Process: Florida property tax oversight; confirmation of millage rate-setting process; TRIM notice requirements; VAB process guidelines