Florida Keys Vacation-Rental Guide: Rules, Regulations, and Local Sights

Executive Summary. Florida law classifies most short-term rentals as "public lodging" requiring a state license and compliance with health/safety rules. Under FS 509, vacation-home rentals must obtain a DBPR lodging license (unless exempt), comply with safety standards (locks on doors, railing, CO detectors, etc.), and display the license. Florida also requires collection of 6% sales tax (plus local discretionary surtax) on short-term leases, and county Tourist Development Tax. In Monroe County (Florida Keys), an extra 5% "bed tax" is levied on all stays under 6 months. Locally, each island or municipality adds its own rules. In Key West, for example, every rental must have a city Business Tax Receipt for transient rentals (≤28 days). In unincorporated Monroe County (e.g. Key Largo, Big Pine, Lower Keys), only certain zones permit vacation rentals, and each unit must obtain the county's Special Vacation Rental Permit (annual fee $490, renewal $100) with a required fire inspection. We provide a step-by-step compliance checklist and timeline (with a visual chart), compare rules across islands in a table, and summarize taxes (sales + local taxes) with collection rules. Finally, for each island (Key West, Marathon, Islamorada, Key Largo/Big Pine/Lower Keys) we highlight 6–8 top attractions, neighborhood tips and a 3-day itinerary. Sources: Florida statutes/rules (DBPR, FS 509), Monroe County official code and Planning Dept guides, Key West city materials, Monroe Tax Collector, etc.

State-Level Florida Laws & Rules

Florida Statutes and DBPR rules define lodging rentals:

• Licensing: FS 509.241 mandates a state lodging license for any "public lodging establishment" (generally any rental offered <30 days). Vacation homes (single-family or ≤4-unit dwellings) must obtain a "vacation rental" license (DBPR classifies these under single-family or 2–4 unit license types). Owners must secure the DBPR license before operating (each day without it is a new misdemeanor offense). A Florida license must be in place before any local (city/county) business tax receipt is issued. Renewal and fees follow DBPR schedules (e.g. ~$150 base + $10/unit per year).
• Safety & Building: Lodging laws (FS 509.211) require approved locks on all bedroom doors, secure balcony/stair railings, and carbon-monoxide detectors for fuel-burning appliances. Owners also must comply with standard Florida building and fire codes (smoke detectors, etc.) and local building/occupancy inspections. Health/sanitation rules (e.g. potable water, septic) are enforced by state/local health departments.
• Taxes: State sales tax (6%) applies to all short-term rentals; Monroe County adds a 1.5% discretionary surtax for total 7.5% state/local sales tax. On top of that, Monroe levies a 5% Tourist Development Tax on rentals <6 months. (Other municipalities in Monroe may impose additional "tourism taxes," but Keys rentals fall under the county rule.) Owners must collect these taxes at checkout and remit them to the Florida Dept. of Revenue (for sales tax) and Monroe County Tax Collector (for the 5% bed tax) on their regular schedules.
• Anti-Discrimination & ADA: Federal ADA Title III generally classifies rentals as public accommodations. VRBO/Airbnb hosts are usually subject to ADA (unless the home is owner-occupied with ≤5 rooms, which has an exemption). Even so, Florida has no separate ADA law; owners should follow federal rules (e.g. allowing service animals, reasonable access).
• Insurance & Liability: While not statutorily required, owners should carry commercial liability or short-term rental insurance. Standard homeowners' policies often exclude STR use. Adequate liability coverage is critical given guest-safety risks.

Monroe County & Municipal Rules by Area

Florida Keys cities/counties each impose local rules beyond state law. Key points by area:

Key West (City of Key West)

• Licensing: Key West distinguishes transient (≤28 days) vs. non-transient rentals. Every transient rental must obtain a City Business Tax Receipt. (This is an annual city license; no other short-term rental permit is currently required by Key West.) All transient-rental ads should display the city-issued license number (citizens can verify license validity). Florida law (FS 509.271) forbids the city from licensing such businesses until the state lodging license is obtained.
• Zoning & Caps: Most residential zones in Key West allow vacation rentals. Key West does not impose a cap on the number of STR licenses (unlike taxis or pedicabs, which are capped). However, rentals in designated historical/heritage zones or special overlay zones may face restrictions (owners should consult the zoning code).
• Inspections & Enforcement: Key West requires the state fire inspector to certify rentals in multi-unit buildings, but single-family homes mostly self-certify by owners under oath on the license application (per FS 509's framework). The City enforces noise, parking, and occupancy rules via local code (e.g. maximum occupancy limits by bedroom). Operating without the proper licenses (state + city) can result in citations and misdemeanor charges.
• Taxes: Key West rentals pay state 7.5% sales tax and Monroe's 5% bed tax. The city itself imposes no additional lodging tax beyond these (the bed tax is countywide).

Marathon (City of Marathon)

• Licensing: Marathon requires all vacation-rental businesses to obtain a city Business Tax Receipt, as part of its occupational licensing. Operators must also hold the Florida lodging license and Monroe bed-tax registration. Marathon has historically limited the number of vacation rental units an owner may hold (e.g. max 4 units per owner), but currently it appears to allow renewals with no new caps announced. (Owners should check Marathon City Code or contact the city clerk for any special limits.)
• Zoning: Vacation rentals are generally permitted in Marathon's mixed-use and waterfront neighborhoods. No city ban on STRs is in place. Owners must ensure the property is zoned for residential use and complies with any site plan restrictions.
• Inspections & Enforcement: Marathon's code requires compliance with all building and fire codes. Unlike Key West, Marathon conducts explicit inspections for rentals through its Code Enforcement/Fire Dept (often at the time of issuing the business license or certificate of use). Violations (e.g. unlicensed rentals, noise complaints) can result in municipal code fines or criminal charges under state law.
• Taxes: Rentals in Marathon pay the same Florida and Monroe taxes as above. Marathon does not charge a separate "hotel tax."

[No specific local cap or special permit found; owners should consult the City of Marathon for current requirements.]

Islamorada (Village of Islamorada)

• Licensing: The Village requires a Business Tax Receipt (annual license) for any rental operation. Since 2017 Islamorada has tightened STR regulations: only certain residential zones allow rentals, and owners must register each dwelling as a vacation rental unit with the Village. The Village also mandates that any VR must have a local authorized agent (a contact person) available 24/7 for guests. (Exact fees and forms are on the Village website/forms.)
• Zoning: Islamorada permits rentals only in designated areas (mixed-use or resort districts). Rentals are disallowed in pure residential-only zones. There are no announced numerical caps on units, but each unit needs a permit.
• Inspections & Enforcement: Like other Keys towns, Islamorada enforces Florida's lodging safety standards. The Village building department inspects or audits properties when issuing licenses. Noncompliance (unlicensed listing, false occupancy, etc.) can lead to fines.
• Taxes: Islamorada rentals pay state 7.5% plus Monroe 5%. Islamorada itself imposes no additional lodging tax beyond these.

[If regulations are unclear, owners should request Islamorada's vacation rental application packet and zoning guide for the most current rules.]

Key Largo (Unincorporated Monroe County)

• Zoning: Key Largo is in unincorporated Monroe County, so it follows the county's Land Development Code (LDC). The county prohibits rentals <28 days in "Improved Subdivision" or mobile-home zones. Vacations rentals are allowed only in specific land-use categories: Suburban Residential (SR), Mixed-Use (MU), Urban Residential (UR), Improved Subdivision-Vacation (IS-V), Offshore (OS). (Property owners must confirm their lot's designation on Monroe's zoning maps.)
• County Permit: Every permitted vacation rental must obtain a Special Vacation Rental Permit from Monroe's Planning Dept. The initial permit fee is $490; renewals are $100 annually. The permit is non-transferable (new owners must reapply). The application triggers a Fire/Life Safety Inspection by Monroe Fire Rescue, fees are $125–$400 based on unit size. Only after passing inspection will the county issue the permit. If a property falls outside allowable zones, a permit cannot be issued (the owner may apply for a zoning variance, but few are granted for STR use).
• Manager License: Monroe also requires each rental to have a licensed local manager. This person (often the owner or a hired manager) must live in the Keys and be responsible for 24/7 guest issues. The manager license fee is $110 annually.
• Enforcement: Monroe Code compliance officers patrol and investigate complaints. Any advertisement of a rental in prohibited zones, or unpermitted rental activity, is unlawful. Violators can be fined or required to cease operations.
• Taxes: As elsewhere in Monroe, Key Largo rentals pay 6% + 1.5% sales tax and the 5% bed tax.

Big Pine Key (Unincorporated Monroe County)

Big Pine Key and nearby Lower Keys (e.g. Cudjoe, Sugarloaf, Summerland) follow the same Monroe rules as Key Largo: zone restrictions, special permits, inspections, and manager license. In practice, rentals are common in the Big Pine/Summerland areas, but owners must still obtain the county's annual permit before leasing. Big Pine's zoning (often SR or OS) typically allows rentals; however, owners near sensitive areas (like the Key Deer Refuge) must avoid disturbing wildlife.

[No separate municipal ordinances – Big Pine is fully under county jurisdiction.]

Summary Table of Local Differences

Permit/Process Checklist & Timeline

Step-by-step checklist: Property owners should follow these steps to legally operate an STR in the Keys:

1. Verify Zoning: Confirm that your property's zoning/land-use district permits STRs. (For unincorporated Keys, see Monroe's zoning maps: rentals are not allowed in IS/URM/IS-M zones.)
2. State Lodging License: Apply for a Florida DBPR lodging license (vacation rental license) if you will rent to transients (shorter than 30 days). Use the DBPR online portal; fees ~$150+.
3. Local Business License: Obtain a local business tax receipt (occupational license) from the city or county:
   • If in Key West, apply for a Transient Rentals Business Tax Receipt.
   • If in Marathon or Islamorada, secure the city/village license for rentals.
   • If in unincorporated Monroe (Key Largo, Big Pine, Lower Keys), obtain a Monroe County business tax receipt as well.
4. Monroe Special Permit (if unincorporated): If the property is in unincorporated Monroe and in an allowed zone, apply for the Special Vacation Rental Permit from Monroe Planning. Include proof of ownership, site plan, IDs, and the $490 fee (renewals are $100).
5. Designate Manager (Monroe): For unincorporated rentals, identify a local manager and apply for the manager license ($110).
6. Safety Inspection: Schedule the mandatory Fire/Life Safety inspection:
   • In cities (Key West, Marathon, Islamorada) this usually occurs through the local fire marshal as part of licensing.
   • In unincorporated areas, Monroe Fire Rescue will inspect after you apply. Pay the inspection fee ($125–$400 depending on size) and ensure all alarms/exits meet code.
7. Receive Permits: Once inspections pass, the city or county will issue the final permits or license certificates. Display these as required (e.g. City may require number on premises, advertising).
8. Post-License: After licenses are obtained, list the property legally (some platforms now verify license numbers).
9. Ongoing: Renew all licenses annually; pay lodging and bed taxes monthly/quarterly.

Typical Timeline (Mermaid Gantt chart): The permit process often spans 1–2 months. The chart below illustrates a sample schedule for Monroe County permits. (Timeline may differ for city-only rentals; e.g., Key West's city permit can be faster once state license is done.)

Tax Obligations

Florida sales tax: All short-term rentals must charge 6% Florida sales tax on rent (this includes a 1.5% local discretionary portion in Monroe, for 7.5% total statewide). File and remit sales tax to the Florida Dept. of Revenue (Form DR-15 or via online e-Services) by the 20th of each month/quarter.

Monroe bed-tax: In addition, Monroe County imposes a 5% Tourist Development Tax on all lodging stays under 6 months. Monroe code (Chapter 23, Art. VI) authorizes this 5% levy. Owners/operators collect this tax from guests and pay it to the Monroe County Tax Collector on a monthly basis (Form DR-15 is used; the Tax Collector's website has guidelines). Tour companies and vacation-rental platforms may collect/remit these taxes as required by law (guests often see combined tax on invoices).

Local taxes: There is no additional city lodging tax in Key West, Marathon or Islamorada beyond these; only Monroe's tax applies. (All three are in Monroe County, so the 5% TDT covers all Keys rentals.)

Note: Failure to register or pay these taxes can result in heavy fines and interest. Monroe's Tax Collector also investigates "transient rental fraud," i.e. unlicensed properties advertising STRs.

Common Pitfalls & Enforcement

Owners often slip up by skipping registrations. Common pitfalls include: operating without the state lodging license or local business license, renting in a banned zone, or failing to pay the required taxes. Monroe County maintains a Transient Rental Fraud Hotline and will investigate unlicensed ads. Under FS 509.281, the DBPR or law enforcement can take action: state inspectors will file complaints and initiate arrests for unlawful operation, and each day of violation is a separate misdemeanor. Similarly, a city can revoke a business license or impose municipal fines for non-compliance.

For example, Key West periodically cracks down on rentals that lack the proper license, unlicensed properties can be posted and shut down. Marathon and Islamorada have fined owners advertising without a license. Owners have also been penalized for over-occupancy (violating fire-code guest limits) and excessive noise/parking violations, with citations by city or county code enforcement. Always check the latest local ordinances, as rules do evolve (e.g. Islamorada tightened regs in recent years, Key West has periodic rental-workshops).

Island Attractions & Neighborhood Guides

Key West. (Old Town) Vibrant "Conch Republic" capital of the Keys. Top sights: Duval Street (bars, shops), Mallory Square Sunset Celebration, Ernest Hemingway Home & Museum, Harry S. Truman Little White House, Fort Zachary Taylor Historic State Park (beach+Civil War fort), Southernmost Point buoy, Key West Lighthouse & Keeper's Quarters, Audubon House, Shipwreck Museum, and Dry Tortugas National Park (take a day ferry/tour to Fort Jefferson). Neighborhood tips: The Historic Seaport/Old Town are best for bars/restaurants; the quieter Bahama Village (north of Truman Ave) has local eateries and community vibe. New Town (east of US1) is more residential, fewer rentals here. Itinerary (3 days): Day1: Explore Duval St & Mallory Square; sunset at the Harbor. Day2: Morning at Fort Zachary beach, afternoon Hemingway House & Lighthouse, evening southside snorkeling cruise. Day3: Bicycle the city streets/museums, or boat to Dry Tortugas.

Marathon. (Middle Keys) Family-friendly hub with gulf and bay access. Top sights: Sombrero Beach (free white-sand beach), Florida Keys Aquarium Encounters (sea turtles, rays), Dolphin Research Center (interactive swim with dolphins), Crane Point Hammock (museum/walk), Curry Hammock State Park (kayaking), Marathon Marina, Pigeon Key, and the historic 7-Mile Bridge (bike portion). Nightlife is low-key (Scenic Gulf Drive has beach bars, e.g. Keys Fisheries for seafood). Neighborhood tips: Sites are spread out along 7-Mile Bridge (US1 mile markers 48–62). Staying near the Seven Mile Bridge (Sombrero area) is ideal for beach access; Boot Key Harbor area (downtown) is good for marinas and shops. Itinerary: Day1: Morning swim at Sombrero Beach, lunch at keys seafood joint, afternoon Turtle Hospital tour. Day2: Visit Dolphin Center, walk Old Seven Mile Bridge, evening sunset at Marathon Moose Lodge. Day3: Day-trip snorkeling at nearby coral reef, or biking Curry Hammock State Park.

Islamorada. (Upper Keys) Sport-fishing and resort "Village of Islands." Top sights: Robbie's Marina (feed tarpon off the dock), Lorelei Restaurant dockside bar (sunset views), Anne's Beach (shore access, winding boardwalk), History of Diving Museum, Windley Key Fossil Reef Geological State Park, Islamorada Brewery (tours), Founders Park (family recreation). Water activities abound: snorkeling at Indian Key (canoe), kayaking Florida Bay, or sport fishing charters. Neighborhood tips: Islamorada stretches from MM 72 to 82 on US1. Miami side (upper end) is quieter; the heart is the Morada Bay/Lorelei area with nightlife. Itinerary: Day1: Morning kayak to Indian Key, lunch at Lagoon Bar, evening tarpon feeding at Robbie's. Day2: Visit History of Diving, picnic at Anne's Beach, dinner at Blond Giraffe (ice cream shack). Day3: Charter a fishing or snorkeling trip, wrap up with sunset cocktails on Islamorada Bay.

Key Largo. (Uppermost Key) Known for John Pennekamp Coral Reef State Park. Top sights: Pennekamp Park (snorkel/diving tours of coral reefs, glass-bottom boat), African Queen® Steam Boat (historic tour), Florida Keys Wild Bird Rehabilitation Center, Crocodile Lake National Wildlife Refuge, lagoon snorkeling (John Pennekamp) and small local beaches (Harry Harris Park). The 9-11 Memorial lighthouse near Mile Marker 90 is a poignant stop. Stay areas: Tavernier or Key Largo Village (around MM 98–100) has most hotels/shops. Itinerary: Day1: Half-day snorkel tour in Pennekamp, afternoon visit African Queen & Park aquarium. Day2: Drive the Keys Historic Highway north, stop at wildlife centers, snorkel Munyon Island in Biscayne Bay. Day3: Relax at a bayfront restaurant, afternoon boat charter (dolphin watch or fishing).

Big Pine Key. (Lower Keys) Quiet, natural vibe and home of the Key deer. Top sights: National Key Deer Refuge (biking/walking Blue Hole, a freshwater lake), No Name Pub (tiki bar famous for quirky décor), Bahia Honda State Park (great beaches, island hop across bridges), Looe Key Reef (snorkel at marine sanctuary just south of Big Pine). This is a fishing/canoeing area; kayak Deep Creek or enjoy the offseason peacefulness. Stay areas: Lodging is mostly guesthouses and B&Bs along Big Pine, Cudjoe Key, or Marathon. Itinerary: Day1: Explore Key Deer refuge by bike (early to avoid wildlife jams), picnic at Bahia Honda beach. Day2: Morning snorkel at Looe Key, afternoon stroll at historic Blue Hole. Day3: Breakfast at No Name Pub, then drive to explore neighboring Lower Keys islands (Ramrod Key, Summerland) and enjoy the sunset on the ocean side.

Lower Keys (excl. Key West/Big Pine). This loosely refers to islands south of Big Pine (Summerland, Cudjoe, Sugarloaf, etc.). Points of interest include the coral reefs (Sombrero Reef, Sand Key), local diving shops (for 4th-largest Looe Key reef), and "backcountry" fishing spots. These islands are very residential; most visitors stay in Marathon or Key West. If staying here: Day trips include Dry Tortugas ferry (from Key West), kayaking Whitewater Bay, and off-road biking on Cudjoe offshoot beaches.

Regulatory Comparison & Owner Checklist

Owner's Pre-Leasing Checklist: (From research to rental day)

By following these steps (timeline chart above), owners can avoid violations. Skipping any step risks citations or forced closure under state FS 509 enforcement.