Last updated: June 2026

A 1031 exchange on commercial property in South Florida lets you sell an investment or business-use property and roll the proceeds into a like-kind replacement property while deferring federal capital gains tax, as long as you follow the timing and structure rules in the tax code. The mechanics are the same statewide, but two things make the math sharper here: Florida has no state income tax and therefore no state-level capital gains tax, so the only gain at stake is federal [1]. And Miami-Dade industrial pricing has held firm, with countywide vacancy at 6.8% and average asking rent of $16.84 per square foot as of Q1 2026 [2], which keeps net-lease assets in demand as exchange targets.

The rules you cannot bend: you have 45 days from the sale of your relinquished property to identify replacement property in writing, and 180 days to close on it, running concurrently from the same start date [3]. You cannot take actual or constructive receipt of the sale proceeds, which is why a qualified intermediary holds the funds [3]. And any cash or non-like-kind value you pull out (called boot) is taxable to that extent [3]. This guide walks through each of those rules with an underwriting lens, plus how South Florida's commercial sectors fit into a replacement-property pipeline.

What a 1031 exchange is, in plain terms

A 1031 exchange (named for Section 1031 of the Internal Revenue Code) is a like-kind exchange. You sell real property held for investment or for productive use in a trade or business, and you reinvest into other real property of a like kind, deferring the capital gains tax you would otherwise owe on the sale [3].

"Like-kind" for real estate is broad. Properties qualify if they are of the same nature or character, even if they differ in grade or quality [3]. In practice that means you can exchange a multifamily building for a medical office, an industrial lot for a net-lease retail property, or raw land for a warehouse. Two limits matter: the property cannot be held primarily for sale (so flips and dealer inventory do not qualify), and real property inside the United States is not like-kind to real property outside it [3].

The tax is deferred, not erased. The deferred gain carries into the basis of the replacement property and comes due if you later sell without exchanging again.

The timelines you cannot miss

The IRS treats the two deadlines as hard dates. They begin on the same day, the day you transfer your relinquished property, and run concurrently [3].

The 45-day identification period

Within 45 days of the sale, you must identify your replacement property in writing, signed and delivered to a party in the exchange such as the qualified intermediary [3]. There is no grace period if day 45 lands on a weekend or holiday.

The 180-day exchange period

You must receive the replacement property by the earlier of the 180th day after the sale, or the due date (including extensions) of that year's tax return [3]. Because the clock starts at the same time as the 45-day window, you have roughly 135 days left to close once identification is locked.

The practical takeaway from an underwriting standpoint: build your replacement pipeline before you list the asset you are selling. The 45-day window is short, and a thin pipeline is where most exchanges go taxable.

The qualified intermediary and constructive receipt

One of the more common ways an exchange fails is the investor touching the money. To qualify, you cannot have actual or constructive receipt of the sale proceeds. A qualified intermediary (QI) receives the funds and the property on your behalf, so the transfer is treated as a like-kind exchange rather than a sale followed by a purchase [3].

The QI cannot be a disqualified person, which the IRS defines to include your agent at the time of the transaction or a person related to you, such as a spouse, child, parent, or related entity [3]. That rules out using your own attorney, accountant, or family member as the intermediary if they have acted as your agent.

Boot and the same-taxpayer rule

Two structural points decide whether your deferral is full or partial.

Boot. If you also receive cash or other non-like-kind property as part of the exchange, gain is recognized to the extent of that cash and the fair market value of the non-like-kind property received [3]. Boot also shows up when the replacement property costs less than the relinquished one, or when you reduce debt without replacing it with new cash or financing. To defer the full gain, the general rule of thumb is to reinvest all the equity and replace the debt.

Same taxpayer. The taxpayer that sells the relinquished property must be the taxpayer that acquires the replacement property. This is a same-taxpayer rule, not a literal same-name rule. A disregarded entity, such as a single-member LLC, is treated as its owner for these purposes, so titling can flex within that structure. Confirm the exact titling with your QI and tax advisor before closing, because getting the taxpayer wrong is one of the few mistakes you cannot fix after the fact.

Why South Florida changes the math: no state capital gains tax

Florida does not impose a personal income tax, and therefore does not tax capital gains for individuals [1]. That is not a temporary policy. Article VII, Section 5 of the Florida Constitution prohibits the legislature from levying an income tax on natural persons, which would require a statewide referendum to change [1].

What that means for an exchange decision: the gain you are deferring through a 1031 is the federal gain only. Federal long-term capital gains are taxed at 0%, 15%, or 20% depending on income, and high-income investors may also owe the 3.8% Net Investment Income Tax under IRC Section 1411 [1]. There is no Florida layer stacked on top. For an investor weighing whether to exchange or simply sell and pay the tax, the absence of a state capital gains bill narrows the gap, but for larger gains the federal deferral still does the heavy lifting.

South Florida commercial sectors as replacement targets

If you are building a 45-day pipeline, these are the sectors drawing exchange capital in the current market. Treat the categories as where supply and tenant demand are concentrated, not as a forecast.

Industrial and logistics

Proximity to PortMiami and Miami International Airport keeps the Doral, Medley, and Hialeah industrial corridor in demand. Countywide industrial vacancy sat at 6.8% with average asking rent of $16.84 per square foot as of Q1 2026, up 2.4% year-over-year [2]. Net-lease (NNN) industrial assets appeal to investors leaving hands-on residential management for a more passive income profile, where the tenant carries taxes, insurance, and maintenance.

Retail and mixed-use

Established commercial districts continue to draw national and flagship tenants. Exchanging older retail into higher-quality, well-located mixed-use can upgrade tenant credit and lease term, though pricing and cap rates vary by submarket and should be underwritten deal by deal.

Medical office

Medical office buildings tend to carry long leases and specialized tenants, which is why conservative investors often weight them in a replacement search. Income stability depends on the specific lease, tenant, and location, not the category label.

Reverse exchanges, when you buy first

In a competitive market you may find the replacement property before your current asset sells. A reverse exchange handles that order. Under the IRS safe harbor in Revenue Procedure 2000-37, an exchange accommodation titleholder (EAT) takes and "parks" title to one of the properties, usually in a single-member LLC, while you complete the sale [4].

The same 45-day and 180-day clocks apply, measured from when the EAT acquires the parked property [4]. Reverse exchanges are more complex and carry higher costs than a standard forward exchange because of the parking entity and financing, so they reward planning the structure with your QI well before you bid.

How I help on the real estate side

My role is the property and underwriting side, alongside your qualified intermediary and tax advisor, who handle the legal and tax execution. That starts with a clear read on your equity position through a listing valuation before the clock starts. From there, a buyer consultation maps your replacement criteria (sector, location, lease profile, debt) so the 45-day search is targeted rather than reactive. If you are exploring trophy or income assets, you can also browse current Miami luxury homes and properties as a starting point.

Frequently asked questions

Can I exchange a residential rental for a commercial property?

Yes. Section 1031 covers real property held for investment or for productive use in a trade or business, exchanged for other real property of a like kind, and like-kind is read broadly for real estate [3]. A rental held for investment can be exchanged for a commercial asset held for investment. Property held primarily for sale does not qualify [3].

What happens if I miss the 45-day identification deadline?

The exchange is disqualified. The deadlines are strict and are not extended for weekends or holidays [3]. A failed identification means the sale is treated as an ordinary taxable disposition, and the deferred gain (plus any depreciation recapture) becomes due.

Does Florida have a state capital gains tax on a 1031 exchange?

No. Florida has no personal income tax and therefore no state capital gains tax for individuals, a limit embedded in Article VII, Section 5 of the Florida Constitution [1]. The gain a 1031 defers in Florida is the federal gain only [1].

What is boot, and will it make my exchange taxable?

Boot is cash or non-like-kind property you receive in the exchange. Gain is recognized to the extent of that cash and the fair market value of the non-like-kind property received [3]. Receiving boot does not disqualify the whole exchange; it makes that portion taxable while the rest stays deferred.

What is a reverse 1031 exchange?

A reverse exchange is when you acquire the replacement property before selling your current one. Under Revenue Procedure 2000-37, an exchange accommodation titleholder parks title to a property, typically in a single-member LLC, and the standard 45-day and 180-day deadlines apply from the parking date [4]. It is more involved and more costly than a forward exchange.

Working through your own exchange

If you are weighing a 1031 on a South Florida commercial asset, the value of an early conversation is in the sequencing: knowing your equity, lining up a qualified intermediary, and having replacement candidates in view before day one of the 45-day window. I am glad to walk through the property side with you and coordinate with your tax and legal advisors. You can reach me through the contact options on the site whenever the timing is right.

Gabriel

Sources

Florida Department of Revenue / AARP Florida State Tax Guide, Florida has no state income or capital gains tax (Fla. Const. Art. VII, Sec. 5) — https://floridarevenue.com/faq/Pages/FAQDetails.aspx?FAQID=1307&IsDlg=1 ; https://www.aarp.org/states/florida/state-taxes-guide/
CBRE, Miami Industrial Figures, Q1 2026 (vacancy 6.8%, asking rent $16.84 PSF, up 2.4% YoY) — https://www.cbre.com/insights/figures/miami-industrial-figures-q1-2026
Internal Revenue Service, Instructions for Form 8824 (Like-Kind Exchanges) — https://www.irs.gov/instructions/i8824
Internal Revenue Service, Revenue Procedure 2000-37 (reverse exchange safe harbor and exchange accommodation titleholder) — https://www.irs.gov/pub/irs-drop/rp-00-37.pdf

Gabriel A. Moyers, PA. eXp Realty. Florida License #3407280. Equal Housing Opportunity. This article is general information as of June 2026 and is not legal, tax, or financial advice. Verify current figures against the IRS Instructions for Form 8824 and a qualified intermediary or tax advisor before acting.

1031 Exchange on Commercial Property in South Florida: Rules and Underwriting Guide