Buying a Key West Rental in 2026: Underwrite This Year

Jacob Mishalanie
5 days ago
10 min read

Fort Zachary Taylor Beach from the west, Key West, Florida

Buying a Key West short-term rental is an underwrite of this specific year's range, not a blended corridor pulled from a regional roundup or a neighbor town's spreadsheet. AirROI's town page puts the typical year at $88,799 across 1,221 active listings, occupancy 44.7%, ADR $678, RevPAR $311, for the window ending July 2026. A separate source, StaySTRA, has flagged a meaningfully higher range of roughly $128,000–$143,000 — worth knowing, worth presenting, and worth treating as a WATCH figure rather than the number a buyer builds a purchase decision around.

Every underwrite built on the more flattering of those two numbers, without acknowledging the gap or checking which one actually matches comparable listings, is an underwrite built on hope rather than data. This post walks through what an honest Key West purchase evaluation actually looks like in 2026: the revenue range, the entry cost question, the licensing layer, and the buyer this market is genuinely wrong for.

None of what follows replaces a lender's own underwriting process or a real estate attorney's review of a specific transaction. It's the marketing-and-market-sizing lens a buyer should bring into those conversations already informed, rather than arriving with a single borrowed number and no sense of where it came from. This is not legal advice.

Start With the Range, Not a Single Number

AirROI's $88,799 typical year is the more conservative, more broadly sampled figure and the one worth using as a baseline underwrite. StaySTRA's higher range should sit alongside it as a best-case scenario, not a starting assumption — a purchase that only works financially if the higher figure holds true is a purchase with less margin for error than the seller's pitch might suggest.

A buyer's own diligence should include pulling comparable listings' actual performance where possible, rather than relying entirely on either aggregator. Neither AirROI nor StaySTRA can see a specific unit's condition, location within Old Town, or management quality — all of which move real performance more than any market-wide average.

The 20%-plus gap between the two figures is also worth asking a seller or listing agent about directly. If they're quoting the higher number without acknowledging the more conservative one exists, that's worth noting as part of the overall diligence picture, not a reason to walk away outright.

A seller genuinely confident in a property's performance should be able to produce actual trailing operating data rather than relying solely on either market-wide aggregator figure to make the case.

Gross Yield Can Look Thin at a High ADR — Say So

A $678 average daily rate sounds impressive in isolation, but occupancy sitting at 44.7% means a meaningful number of nights go unbooked, and Key West's entry prices are not low. Gross yield calculated against actual purchase price can look thinner than the headline ADR implies, and a buyer who doesn't run that full calculation — purchase price against realistic annual revenue, not against a best-case StaySTRA figure — risks overpaying relative to what the property will actually generate.

This isn't a reason to avoid the market. It's a reason to be honest about the math before closing, rather than discovering the real yield after the first year of ownership.

It's also a reason to weigh a property's specific competitive position within the 1,221-listing pool, not just the town-wide average. A well-located, well-marketed unit can outperform the average; a generic, poorly differentiated one can underperform it — and the gap between those two outcomes is often larger than the gap between the AirROI and StaySTRA figures.

That competitive-position question is ultimately a marketing question as much as a financial one, and it's worth asking before closing rather than after.

Entry Cost: Verify It, Don't Assume It

Current home values and recent comparable sales should be verified directly at the time of a specific purchase decision — this post doesn't guess a median price, and neither should a buyer rely on an outdated figure pulled from an old listing or a general market report. Entry cost moves, and a stale number plugged into a yield calculation produces a stale, potentially misleading answer.

The right sources for this are current local real estate data and a comparable-sales pull specific to the property type and neighborhood being considered, not a statewide or regional average that blends Key West with towns that have a fundamentally different price point.

Old Town, in particular, carries its own premium relative to other parts of the island, and a comparable-sales pull should be specific enough to reflect that — a median price for "Key West" broadly can obscure meaningful differences between neighborhoods within the same small city.

A local real estate professional familiar specifically with short-term-rental-eligible properties in Key West is a more useful resource here than a generic regional agent, since license eligibility itself can affect which comparable sales are actually relevant.

Confirm License Status Before Underwriting Revenue

A property's ability to generate the revenue this report describes depends entirely on whether it holds, or can obtain, a valid transient rental license from the City of Key West. This is not legal advice. Before running any revenue projection, confirm the property's current license status directly with the city's Licensing Department, and confirm whether a license transfer is required and available under the current Transfer of Transient Unit License process — don't assume a seller's claim about license status is accurate without independent verification.

This step matters more in Key West than in an unregulated market, because the license itself — not just the property — is part of what a buyer is actually purchasing when the goal is short-term rental income.

A property without a currently valid, transferable license is a different asset than one with a confirmed license in hand, even if the physical building is identical. That distinction should show up in how the purchase is priced and negotiated, not discovered as a surprise after closing.

A real estate agent unfamiliar with the specific mechanics of Key West's transient licensing system may not flag this distinction clearly on their own, which makes independent verification with the city's Licensing Department a step a buyer should take personally rather than delegate entirely.

Don't Underwrite This Property on a Neighbor's Year

Marathon, Islamorada, and Stock Island each run their own separate AirROI figures, their own calendars, and their own license desks. Stock Island in particular prices out higher — $135,missing page a year on just 99 active listings — but that's a smaller, different listing stock pool, not a Key West comp. A buyer who runs a purchase model using a neighboring town's numbers, whether by mistake or because those numbers were simply more flattering, is filing the wrong year's data onto the wrong address.

This gets more confusing, not less, when a listing agent markets a property loosely as "Key West area" without specifying which town or unincorporated zone it actually sits in. Confirming the exact jurisdiction — and pulling that jurisdiction's own specific data — is a basic diligence step that protects against exactly this mistake.

The Wrong Buyer for This Market Right Now

This market is a poor fit for a buyer who's skipping the City of Key West / Monroe County licensing verification step, who's underwriting purely on the higher StaySTRA figure without a margin of safety, or who's assuming Key West behaves like a lower-cost, less regulated coastal market elsewhere in Florida. Active supply here grew 17.7% over the past year against only 1.8% revenue growth — a buyer entering with unrealistic occupancy assumptions is entering a market that's getting more competitive, not less.

A buyer comfortable with a licensed, mature, seasonally distinct market — one who's done the diligence on license status, entry cost, and realistic revenue — is in a much stronger position than one hoping the higher aggregator figure simply holds.

This isn't a market for a buyer looking for a quick, low-diligence flip into short-term rental income either. The licensing layer alone adds a step most unregulated markets don't require, and skipping it in the name of speed is exactly how a buyer ends up with a property they can't legally operate as intended.

By contrast, a buyer who treats the licensing check, the entry-cost verification, and the seasonal-revenue model as standard steps — not extra hurdles — tends to make a more defensible decision, whether the answer ends up being a purchase or a pass.

What the Calendar Means for a Buyer's First Year

March is the peak revenue month and September the low point, with the softest stretch running July through September. A buyer modeling their first year of ownership should build that seasonal shape into the projection rather than assuming flat monthly revenue — an underwrite that spreads $88,799 evenly across twelve months will be wrong in both directions, overestimating the trough and underestimating the peak.

This matters most for cash-flow planning in the first twelve months, when a new owner has the least cushion to absorb a slower-than-expected trough. Building the July-through-September dip into the plan from day one avoids a stressful surprise mid-year.

It also affects how a new owner should think about timing the purchase and the launch itself — closing with enough runway before the March peak, rather than mid-trough with a listing that isn't yet dialed in, gives the first year a better shot at hitting the underwritten numbers.

Putting the Underwrite Together

A conservative revenue baseline from AirROI, a noted but not relied-upon higher StaySTRA range, a verified current entry cost, a confirmed license path, and a seasonal revenue model rather than a flat one — that's what an honest 2026 Key West underwrite looks like. None of it guarantees a good deal; it just makes sure the decision is based on this island's actual numbers rather than a borrowed or wishful figure.

Once a purchase closes, the same discipline that went into the underwrite should carry into the listing itself — pricing and marketing built around this same real seasonal shape and this same real comp set, not a fresh set of assumptions that ignores everything learned during diligence.

Once You Own It: The Marketing Question Starts Immediately

A newly purchased property doesn't inherit strong bookings automatically just because the underwrite penciled out — a new owner still has to build or refresh the listing, and that work benefits from starting before closing rather than after. A listing that goes live with generic copy and stock photos in its first season is leaving some of the very revenue the underwrite assumed on the table.

This is a natural extension of the diligence work already done for the purchase: the same seasonal data, the same neighborhood specifics, the same license confirmation feed directly into what the listing itself should say and how it should be priced from day one.

Buyers who plan for this from the outset — budgeting time or resources for a proper listing launch alongside the closing itself — tend to reach a stabilized, market-matching booking pace faster than those who treat the listing as an afterthought once the paperwork is done.

Frequently Asked Questions

Should I buy an Airbnb in Key West in 2026?

That depends on the specific property and price, but any evaluation should start with AirROI's $88,799 typical-year baseline, verified current entry cost, and confirmed license status — not a blended regional figure or the higher StaySTRA range treated as guaranteed.

What's the difference between AirROI's and StaySTRA's Key West revenue figures?

AirROI's tracked figure is $88,799 for a typical year on 1,221 active listings; StaySTRA has separately flagged a higher range of roughly $128,000–$143,000. The two use different methodologies and shouldn't be averaged — a buyer should treat the AirROI figure as the more conservative planning baseline.

Do I need a license to operate a short-term rental in a Key West property I buy?

Yes — the City of Key West requires a valid transient rental license. This is not legal advice. Confirm current status and any transfer requirements directly with the city's Licensing Department before underwriting projected revenue.

Is Stock Island the same market as Key West for investment purposes?

No — Stock Island is a separate, smaller geography with its own AirROI figures ($135,missing page/year on 99 listings) and its own listing stock character. It should never be used as a Key West comp.

How is Key West's short-term rental supply changing?

AirROI's data shows active listing supply grew 17.7% over the past year, while revenue grew only 1.8% — meaning more listings are competing for a nearly flat occupancy rate, a factor worth weighing in any purchase decision.

What's the biggest mistake buyers make when evaluating a Key West rental?

Underwriting the purchase using the higher of two available revenue figures without a margin of safety, or using a neighboring town's numbers instead of Key West's own tracked data.

Should I assume a flat monthly revenue when modeling my first year?

No — March is the peak revenue month and September the low point, with July through September running softest overall. A realistic model should reflect that seasonal shape rather than dividing annual revenue evenly across twelve months.

How do I verify current home prices in Key West?

Through current local real estate data and comparable sales specific to the property type and neighborhood — a statewide or regional average will not accurately reflect Key West's specific entry cost.

Does an existing transient license automatically transfer when I buy a property?

Not automatically — the City of Key West has a specific Transfer of Transient Unit License process. Confirm this directly with the city before assuming a seller's license conveys with the sale.

Is gross yield strong in Key West given the high ADR?

Not necessarily — a $678 average daily rate paired with 44.7% occupancy and Key West's entry prices can produce a thinner gross yield than the ADR alone suggests. Run the full calculation against actual purchase price before assuming strong returns.

Work with Crest & Cove Creative

A buyer who underwrites a Key West purchase off the higher of two headline figures, without checking license status or entry cost, often finds out the real numbers only after the closing is done. Name the failure mode the guest.

Sizing a Key West purchase against real marketing potential is different from lender underwriting — it's about whether this listing can actually compete once it's live. We help buyers evaluate that marketing reality before and after closing.

Reach out at crestcove.co or (256) 998-7502.