Florida Documentary Stamp Tax Calculator | Accurate Real Estate Transfer Tax


Florida Documentary Stamp Tax Calculator

Estimate the Florida transfer tax for real estate transactions.

Documentary Stamp Tax Calculator



Enter the total purchase price or consideration for the property.


Enter the amount of any new mortgage or loan secured by the property.



Check if the property is a single-family home, condo, or townhome.

Visual breakdown of tax components.

What is the Documentary Stamp Tax Florida Calculator?

A documentary stamp tax florida calculator is a specialized financial tool designed to estimate the excise tax levied on certain documents in Florida. This tax primarily applies to documents that transfer an interest in real property (like deeds) and written obligations to pay money (like mortgages and promissory notes). The tax is often referred to as a transfer tax. When you buy or sell a home, or refinance a mortgage, this tax is a mandatory part of your closing costs. Our calculator helps buyers, sellers, and real estate professionals accurately budget for this expense.

This is not a generic tax; the rates are specific to Florida state law and have a notable exception for Miami-Dade County, which has its own rate structure. The purpose of our documentary stamp tax florida calculator is to provide a precise estimate based on your specific transaction details, ensuring you’re not surprised at the closing table.


Documentary Stamp Tax Formula and Explanation

The calculation depends on the document type and location. The core principle is a rate applied per $100, or any fraction thereof, of the total value.

Formulas Used:

  • Deed Stamp Tax (Standard): Tax = CEILING(Sale Price / 100) * $0.70
  • Deed Stamp Tax (Miami-Dade): Tax = CEILING(Sale Price / 100) * $0.60
  • Mortgage Stamp Tax: Tax = CEILING(Mortgage Amount / 100) * $0.35
  • Miami-Dade Surtax (Non-Single-Family): Surtax = CEILING(Sale Price / 100) * $0.45

The “CEILING” function signifies that even a small fraction of a $100 increment is rounded up to the next full $100 unit for tax purposes. For example, a $100.01 consideration is taxed as if it were $200.

Calculation Variables
Variable Meaning Unit Typical Range
Sale Price The total consideration paid for the real property. USD ($) $50,000 – $10,000,000+
Mortgage Amount The principal amount of a new loan secured by the property. USD ($) $40,000 – $8,000,000+
Location Whether the property is within Miami-Dade County. Boolean N/A
Property Type In Miami-Dade, whether it is a single-family residence. Boolean N/A

Practical Examples

Example 1: Standard Home Sale in Orlando (Orange County)

Imagine buying a home for $400,000 with a new mortgage of $320,000.

  • Inputs:
    • Sale Price: $400,000
    • Mortgage Amount: $320,000
    • Location: Not Miami-Dade
  • Results:
    • Deed Tax: CEILING(400000/100) * $0.70 = 4000 * $0.70 = $2,800
    • Mortgage Tax: CEILING(320000/100) * $0.35 = 3200 * $0.35 = $1,120
    • Total Tax: $3,920

Example 2: Commercial Property Sale in Miami-Dade County

A commercial building is sold for $1,500,000 with a new mortgage of $1,000,000.

  • Inputs:
    • Sale Price: $1,500,000
    • Mortgage Amount: $1,000,000
    • Location: Miami-Dade, Not a single-family residence
  • Results:
    • Deed Tax: CEILING(1500000/100) * $0.60 = 15000 * $0.60 = $9,000
    • Miami-Dade Surtax: CEILING(1500000/100) * $0.45 = 15000 * $0.45 = $6,750
    • Mortgage Tax: CEILING(1000000/100) * $0.35 = 10000 * $0.35 = $3,500
    • Total Tax: $19,250

How to Use This Documentary Stamp Tax Florida Calculator

  1. Enter Sale Price: Input the full purchase price of the property in the first field. This is the primary value used for the deed tax.
  2. Enter Mortgage Amount: If a new loan is being taken out, enter the full loan amount in the second field. If there’s no new mortgage, you can leave this as 0.
  3. Select Location: Check the “Is the property in Miami-Dade County?” box if the property is located there. This is critical as it changes the tax rates.
  4. Specify Property Type (if in Miami-Dade): If you checked the Miami-Dade box, another option will appear. Check “Is this a single-family residence?” if the property is a house, condo, or townhome. This determines if the surtax applies.
  5. Review Results: The calculator instantly updates, showing a total estimated tax and a detailed breakdown of the deed tax, mortgage tax, and any applicable surtax.

For more insights on property valuation, you might want to use a {related_keywords}.


Key Factors That Affect Florida Documentary Stamp Tax

  • Consideration/Sale Price: The single most important factor. The higher the price, the higher the deed tax.
  • Loan Amount: The size of the new mortgage directly determines the mortgage portion of the stamp tax. Refinancing an existing mortgage also triggers this tax on the new loan amount.
  • Property Location: The calculation changes significantly if the property is in Miami-Dade County versus any other Florida county. This is the only county with a different base rate and a potential surtax.
  • Property Type in Miami-Dade: A single-family residence in Miami-Dade is exempt from the surtax, making it considerably cheaper in taxes than a commercial property or duplex of the same value.
  • Assumed Mortgages: If a buyer assumes an existing mortgage, its value is included in the “consideration” for calculating the deed tax.
  • Exemptions: Transfers between spouses due to divorce, transfers to governmental agencies, and certain other specific transfers may be exempt from the tax. Always consult with a legal professional about exemptions. Understanding your {related_keywords} can be helpful here.

Frequently Asked Questions (FAQ)

Who pays the documentary stamp tax in Florida?

Typically, the seller pays the stamp tax on the deed, and the borrower (buyer) pays the stamp tax on the new mortgage. However, this is negotiable and can be assigned differently in the purchase agreement.

Is the tax rate the same in all Florida counties?

No. All counties except one use the standard rate of $0.70 per $100 for deeds. Miami-Dade County is the exception, with a rate of $0.60 per $100 plus a potential surtax of $0.45 per $100. Our documentary stamp tax florida calculator handles this automatically.

What is the “fraction thereof” rule?

It means any portion of a $100 increment is taxed as a full $100. For instance, a sale price of $250,001 is divided into three taxable units ($100, $100, and $100), not 2.5001 units.

Is stamp tax due on a refinance?

Yes. When you refinance, you are creating a new written obligation to pay money (a new mortgage). Therefore, stamp tax is due on the amount of the new mortgage at the rate of $0.35 per $100.

What’s the difference between stamp tax and intangible tax?

Documentary stamp tax is on the document itself (deed or mortgage). Intangible tax is a separate tax on the value of the new loan itself, calculated at a rate of 0.2% (or $2 per $1000) of the loan amount. Our calculator focuses only on the documentary stamp tax.

Does this calculator work for commercial property?

Yes. The rates for deeds and mortgages apply to both residential and commercial property. Simply uncheck the “Is this a single-family residence?” box if calculating for a commercial property in Miami-Dade to ensure the surtax is correctly applied.

Why is the Miami-Dade rate lower for single-family homes?

The surtax of $0.45 per $100 in Miami-Dade County does not apply to transfers of single-family residences. This effectively makes the total deed tax rate lower for homes compared to other types of real estate in that county. For other financial planning, see our {related_keywords}.

Is there a maximum stamp tax amount?

For mortgages, no, there is no cap on the documentary stamp tax due. For certain other unsecured notes, there is a cap, but it does not apply to mortgages recorded in Florida.


© 2026. This calculator is for informational purposes only and should not be considered financial advice. Consult with a qualified professional for financial guidance.



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