How Much Florida Doc Stamps Add to a Miami-Dade Rental HELOC

The Quick Read: A recorded Florida mortgage carries two state taxes, documentary stamp tax at 0.35% and nonrecurring intangible tax at 0.20%, which stack to about 0.55% of the amount the mortgage secures, and because a HELOC mortgage names a maximum line, the taxed base can be the full line rather than your first draw.

• Miami-Dade’s higher deed levy and its surtax apply to deeds. A line of credit on a property you already own records no deed.
• Per $100,000 of taxed amount, expect $350 in doc stamps plus $200 in intangible tax, or $550 combined.
• The $2,450 doc stamp cap applies to unsecured notes. A recorded mortgage is not capped.
• These are state taxes, not lender fees. The closing or title agent collects them.
• On an investment property, lines in Lendmire’s wholesale network top out at 70% combined loan-to-value and $500,000, subject to lender guidelines.

What Two Taxes Hit a Rental HELOC at Recording?

Two separate state taxes attach to the mortgage that secures a Florida HELOC. One is documentary stamp tax. The other is nonrecurring intangible tax. They come from different tax chapters, round differently, and treat later draws differently.

Doc stamps run 35 cents per $100 of indebtedness, or any portion of $100, according to Starfield & Smith, a Florida law firm that advises lenders. That is 0.35%, rounded up to the next $100.

The intangible tax is 2 mills, or $0.002 per dollar. That is 0.20%, calculated on the exact dollar amount with no rounding. The Florida Department of Revenue’s nonrecurring intangible tax page explains that the lender is the legal taxpayer. The lender may pass the cost to the borrower, and on a HELOC it usually does.

Combined, the two taxes come to about 0.55%. Everything else here is about what that 0.55% gets multiplied by.

Does Miami-Dade’s Special Rate Apply to a HELOC?

No. Miami-Dade’s higher figures apply to deeds, not to mortgages. The county’s deed levy is $0.60 per $100, with a $0.45 per $100 discretionary surtax on top. The Florida Department of Revenue’s documentary stamp page lists both, and it notes the surtax is not due on a document that transfers only a single-family dwelling.

A HELOC borrows against a property you already own. No deed is recorded, so neither deed figure applies. Mortgage and note stamps stay at the statewide 0.35%.

That last row matters to investors. A condo owner or a small multifamily owner in Miami-Dade pays the same mortgage doc stamp as a single-family owner. Surtax exposure arises on a sale or deed transfer, not on a line of credit.

This is the most common confusion on the topic. Investors see Miami-Dade’s deed numbers in a closing-cost article and assume they carry over to every recorded document. They don’t. Still, ask the title agent to confirm which documents are being recorded on your file.

How Does the Taxed Amount Get Set?

The taxed amount depends on how the mortgage is drafted, and the stated maximum on a HELOC mortgage usually drives it. The steps below show how underwriting and closing treat the number.

Step 1: The line is recorded as an open-end mortgage. Florida law lets a mortgage secure future advances, provided the instrument states a maximum principal amount. The balance at any moment cannot exceed that stated maximum. That stated maximum is the number tax authorities look at.

Step 2: Doc stamps follow the drafting. The department’s long-standing position has two branches:

• A mortgage that secures an undetermined sum up to a stated cap is taxed on the full cap at recording, whether or not anything is advanced.
• A mortgage with a future-advance clause is taxed as each advance is made, on the amount of that advance.

Much of the guidance behind these positions dates back decades. Treat it as settled practice, and have the title agent confirm the base for the instrument actually being recorded.

Step 3: The unsecured-note cap does not rescue you. Florida caps doc stamps at $2,450 on unsecured notes. The PassFloridaRealEstate calculator states that recorded mortgages are not capped. Starfield & Smith’s earlier explainer says the cap applies where no Florida real property secures the loan. A HELOC on a Miami-Dade rental is secured by Florida real property, so the cap is off the table.

Step 4: The intangible tax follows the line. The department says a line of credit is taxed to the extent a Florida mortgage secures it, and that once tax is paid on the full line, no more is due. Florida’s administrative rule on intangible tax describes a different timing pattern. Tax is paid on the initial debt, then again on each future advance under a future-advance mortgage. Neither approach taxes the same dollar twice. The only practical question is whether the tax is paid up front on the full line or advance by advance.

Step 5: Collection. The closing or title agent collects both taxes and remits them when the mortgage is recorded. That is why they show up as separate government charges on the settlement statement. A lender cannot waive a state tax.

What Does It Cost Per $100,000?

Both taxes scale in a straight line with the taxed amount. Here is the arithmetic per $100,000.

Double the taxed amount and you double both taxes. Each extra $100,000 adds the same $550. There is no discount for a bigger line.

To estimate your own number, multiply the stated maximum of the line by 0.0055. Then confirm the figure against the settlement statement. Treat the result as an illustrative estimate, because the actual base depends on the drafting described above.

One more limit applies. The department says the intangible tax is never computed on more than the fair market value of the Florida collateral. That rarely binds on a line sized within normal leverage, but it exists.

How Should an Investor Size the Line?

Size the line to the capital you will actually deploy, because the tax follows the line and the line does not shrink when you leave it unused. A line that is $100,000 larger costs about $550 more in state taxes at recording, whether or not you borrow all of it.

On this network, the structure narrows the question. Investment lines are subject to lender guidelines, with a typical profile like this:

• The ceiling is 70% combined loan-to-value on an investment property, and the line tops out at $500,000. There is no tier above that for investment property.
• A 700 credit score is the floor for investment lines. Credit above 700 buys eligibility, not extra leverage.
• At least 75% of the line is drawn at closing. That limits the “huge line, tiny first draw” scenario.
• The draw period runs five years, followed by a 25-year repayment period. Investment lines use this structure only.
• Title must sit with the individual borrower or a revocable living trust. LLCs, corporations, and land trusts cannot hold title on these lines, per program guidelines. Every figure here varies by lender and program — guidelines, property type, leverage, and credit profile all apply.

The 75%-drawn rule changes the usual advice. Elsewhere, investors worry about paying tax on unused capacity. Here, the unused slice is at most a quarter of the line at closing, so the tax is largely paid on money you borrow on day one. The sizing decision becomes simpler: borrow what you can deploy at a return that clears the carry plus the roughly 0.55% upfront tax.

The LLC point deserves attention. Many Miami-Dade investors hold rentals in an LLC. A property already deeded to an LLC would need a vesting change before it fits a HELOC. Moving title can have its own cost and consequences, so ask your attorney first. For entity-held property, a DSCR cash-out refinance is the more common path.

HELOC or Cash-Out: Which Tax Bill Is Smaller?

It depends on the equity you need. A cash-out refinance is a closed-end loan, so both taxes apply to the entire new note, not only to the new cash. A HELOC taxes the line.

If you need a modest amount of equity on a property with a large existing first mortgage, a standalone HELOC can leave the first lien untouched. The taxed base is only the line. If you need a large amount, or you would rather refinance everything, the closed-end route may make more sense.

Leverage differs too. On a cash-out refinance of a standard rental, the network generally tops out around 75% LTV, versus 70% CLTV on an investment HELOC. Rental coverage matters on the DSCR side, where qualification runs primarily on property-level rental income covering the payment, subject to lender guidelines. Clearing a coverage test is not the same as positive cash flow, since repairs, vacancy, and capital costs sit outside the calculation. The complete DSCR loans guide walks through that math.

Where the Rule Bends

The 0.55% figure is the center of the distribution. These edge cases move it.

• Drafting drives the base. A maximum-principal mortgage and a future-advance mortgage can be taxed at different times and on different bases. Ask how your instrument is drafted before assuming a number.
• Draws after closing. If intangible tax was paid on the full line, later draws add none. Under a future-advance structure, each advance can trigger tax.
• Lien limitation. If the mortgage limits recoverability below the note’s face amount, doc stamps are measured on that lower lien limit.
• Adjustable pricing. Increases from adjustable pricing count as taxable future advances only to the extent they are a computable sum certain when the document is signed.
• Mixed collateral. If a lender also takes non-Florida collateral, intangible tax can be prorated by the Florida property’s share of value. That is rare on a single-property HELOC.
• Unrecorded instruments. Intangible tax is due even when the mortgage is never recorded, payable directly to the state.
• Non-payment. Failing to pay does not break lien priority, but it can carry penalties.

For investors, the first bullet is the one that matters. Two lenders offering the same line size can produce different tax bills if their mortgages are drafted differently. Ask for the drafting approach before you compare costs.

Who Pays What at Closing?

Taxes are fixed by law, and so are recording fees, which the county clerk sets. Nearly everything else on the settlement statement is set by someone you can question.

No sourced figure exists here for a typical total Miami-Dade closing cost on a line of credit, so budget the taxes as a fixed percentage and ask each provider for its own charges in writing. On an investment line of $500,000 or less, a traditional appraisal is commonly not needed, since automated valuation is the ordinary route. That removes one third-party cost from many files.

One more distinction: seller-pays customs cover deed stamps on a sale. Note and intangible taxes customarily fall on the borrower. That is a market custom, not a statute.

Myths vs. Facts

• Myth: Miami-Dade charges extra doc stamps on mortgages. Fact: the county’s higher figures apply to deeds.
• Myth: Doc stamps are capped at $2,450. Fact: the cap applies to unsecured notes, not recorded mortgages.
• Myth: I only pay tax on what I draw. Fact: the intangible tax, and depending on drafting the doc stamps, can attach to the full line.
• Myth: These are lender fees I can negotiate. Fact: they are state taxes. The lender is the intangible taxpayer but may pass the cost on.
• Myth: The two taxes are the same thing. Fact: they differ in source, rounding, and treatment of draws.

Key Terms Defined

Documentary stamp tax: A Florida tax on documents such as deeds, notes, and mortgages, measured per $100 of value or debt.

Nonrecurring intangible tax: A one-time Florida tax on obligations secured by a mortgage on Florida real property, charged at 2 mills.

Open-end mortgage: A mortgage that secures a revolving line and states a maximum principal amount.

Future advance: Money borrowed after the mortgage is recorded, under the same instrument.

Combined loan-to-value (CLTV): All liens on the property divided by its value, expressed as a percentage.

Surtax: An added county levy on certain deeds. Miami-Dade’s is $0.45 per $100 and does not apply to a mortgage.

If you are considering a home equity line and want to see how the numbers work, Lendmire can help you compare HELOC options based on the property, the equity available, credit profile, combined leverage, and your goals. Lendmire is a broker that arranges financing through select lenders in its wholesale network and is not a commitment to lend. Lendmire’s piece How Much Doc Stamps and Intangible Fees Add to a Florida Rental HELOC covers the statewide picture beyond Miami-Dade.

Miami-Dade’s headline surtax draws attention at a sale, but for an owner pulling equity, the 0.55% mortgage-tax stack is the number that sets the real cost of line size.

About Lendmire

Lendmire, NMLS# 2371349, is a mortgage brokerage that arranges home equity lines of credit through wholesale lending partners in its 16 full-service states. Lines on primary residences, second homes and investment properties are each reviewed individually by the lender under the program’s occupancy, credit and combined-loan-to-value guidelines. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.

References

1. Starfield & Smith – Documentary Stamp and Nonrecurring Intangible Tax Refresher

2. Florida Department of Revenue – Nonrecurring Intangible Tax

3. Florida Department of Revenue – Documentary Stamp Tax

4. PassFloridaRealEstate – Documentary Stamp Tax Calculator

5. Starfield & Smith – 2020 explainer

6. Florida Administrative Code Rule 12C-2.005