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Key Largo FL Short Term Rental Regulations: Essential 28-Day Minimum Guide For Vacation Rental Investors

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Disclaimer: This article is for informational purposes only and not legal advice. Regulations may have changed since publication. Always check with local authorities and consult a legal professional before making investment decisions.

Last updated: October 2025

Introduction to Short-Term Rentals in Key Largo

Key Largo, the northernmost island in the Florida Keys chain and self-proclaimed “Diving Capital of the World,” presents a unique and often misunderstood opportunity for vacation rental investors. Located just 60 miles south of Miami, this tropical paradise attracts divers, snorkelers, fishermen, and beach enthusiasts year-round—creating seemingly perfect conditions for short-term rentals.

However, there’s a critical fact every prospective investor must understand before purchasing property in Key Largo: most residential properties require a 28-day minimum rental period. Unlike Key West or Marathon further down the Keys, Key Largo operates under Monroe County’s strict vacation rental restrictions that prohibit traditional weekly or nightly Airbnb-style rentals in most residential zones.

This fundamental reality shapes the entire investment landscape in Key Largo. While the 28-day minimum eliminates the high-turnover, nightly rental model that many associate with vacation properties, it creates a different opportunity: serving the extended-stay market of snowbirds, remote workers, traveling professionals, and long-term vacationers seeking monthly accommodations in paradise.

The island offers world-class attractions including John Pennekamp Coral Reef State Park (America’s first undersea park), the African Queen Canal Cruise, Dagny Johnson Key Largo Hammock Botanical State Park, and countless diving and fishing charters. With a permanent population of approximately 10,000 that swells with visitors throughout the year, Key Largo maintains strong rental demand—but primarily for stays of 28 days or longer.

This comprehensive guide breaks down everything you need to know about navigating Key Largo’s complex vacation rental regulations, understanding where short-term rentals ARE permitted (yes, some exceptions exist), and determining whether the 28-day minimum model aligns with your investment goals.

Current Short-Term Rental Permit Requirements in Key Largo

Key Largo falls under unincorporated Monroe County jurisdiction, which means all vacation rental regulations are set and enforced by Monroe County—not a municipal government. The regulatory framework is comprehensive and strictly enforced:

Special Vacation Rental Permit (Annual)

Properties that qualify for vacation rental use must obtain an annual Special Vacation Rental Permit:

  • Initial application fee: $490
  • Annual renewal fee: $100
  • Issued by: Monroe County Planning & Environmental Resources Department
  • Processing time: 4-8 weeks (allow significant time for inspections and documentation)

Vacation Rental Manager License

Every vacation rental unit must have a designated manager with a Special Vacation Rental Manager License:

  • Application fee: $110
  • Issued by: Monroe County Planning & Environmental Resources Department
  • Required for: Each individual or property management company serving as the designated manager
  • Responsibility: 24/7 availability for issues, guest complaints, and emergency responses

Business Tax Receipt (License)

All rental properties require a business tax receipt from Monroe County:

  • Fee: Based on business classification and gross receipts
  • Issued by: Monroe County Tax Collector
  • Renewal: Annual
  • Required even for long-term rentals: Not specific to vacation rentals

Florida Department of Business and Professional Regulation (DBPR) License

State-level licensing is mandatory:

  • Resort Dwelling/Condominium License: Required under Florida Statute Chapter 509
  • Application: Through Florida DBPR website
  • Fee: Varies by property type and size
  • Renewal: Biennial

Florida Sales Tax Certificate

Required for tax collection:

  • Certificate: From Florida Department of Revenue
  • No fee: Certificate itself is free
  • Purpose: Enables collection and remittance of state sales tax

Tourist Development Tax Account

Registration with Monroe County Tax Collector:

  • Purpose: Collection and remittance of 5% Tourist Development Tax
  • Filing: Monthly returns required
  • Deadline: 20th of month following reporting period

Fire and Life Safety Inspection

Both initial and renewal permits require inspection:

  • Inspection fee: Implemented October 2021; fees vary by property size (typically $100-$300)
  • Scheduling: Through Monroe County Fire Rescue online portal
  • Required for: Both new permits and annual renewals
  • Standards: Must meet Florida Fire Code and Life Safety Code

Application Process Timeline

Expect the following sequence:

  1. Obtain Florida Sales Tax Certificate (1-2 weeks)
  2. Apply for DBPR License (2-4 weeks)
  3. Secure Business Tax Receipt (1-2 weeks)
  4. Register for Tourist Development Tax (immediate)
  5. Apply for Vacation Rental Manager License (2-3 weeks)
  6. Submit Special Vacation Rental Permit Application (review process begins)
  7. Schedule and pass Fire and Life Safety Inspection (1-2 weeks after application approval)
  8. Receive permit (upon successful inspection)

Total timeline: Plan for 8-12 weeks from start to final permit approval.

The Critical 28-Day Minimum Requirement

This is the most important section for any Key Largo investor to understand:

The Rule

In most residential land use districts in Monroe County (including most of Key Largo), it is unlawful to rent or advertise a dwelling unit for periods of less than 28 consecutive days to the same tenant.

Where the 28-Day Minimum Applies

The following land use districts in Key Largo generally require 28-day minimum stays:

  • Single-family residential neighborhoods: The vast majority of residential areas
  • Standard subdivisions: Most traditional home developments
  • Many residential areas: Unless specifically zoned for vacation rental use

Where Short-Term Rentals MAY Be Permitted

Vacation rentals (less than 28 days) are allowed in specific land use districts with proper permits:

  • SR (Suburban Residential): Some areas may qualify
  • MU (Mixed Use): Limited locations
  • UR (Urban Residential): Select zones
  • IS-V (Improved Subdivision Vacation Rental): Properties specifically zoned for vacation rental
  • OS (Offshore Islands): Certain island properties

Special Exception: Gated Communities

Some gated communities with controlled access and approved property management associations may permit short-term vacation rentals with proper county permits. Examples include:

  • Mariner’s Club: Known to allow nightly rentals
  • Ocean Pointe: Permits short-term stays including one-night bookings
  • Kawama Yacht Club: Allows nightly and weekly rentals

These communities are governed by their association rules in addition to county regulations, creating a hybrid regulatory environment.

How to Verify Your Property

CRITICAL: Before purchasing any Key Largo property for rental income, you MUST:

  1. Check the Official Vacation Rental Map: Monroe County maintains maps showing where vacation rentals are prohibited, where they’re permitted with annual permits, and where they’re only allowed in gated communities
  2. Contact Monroe County Planning Department: Verify the specific land use designation of your property
  3. Review HOA/Condo Association Rules: Many communities have additional restrictions beyond county requirements
  4. Get verification in writing: Never rely on verbal assurances from sellers or real estate agents

Advertising Requirements

All rental advertising must comply with the 28-day rule:

  • Minimum stay: Must advertise and reflect 28-day minimum in all listings
  • Monthly rates: Pricing should show monthly rates, not nightly or weekly
  • Prohibited: Advertising weekly or nightly stays in restricted zones
  • Consequences: Advertising short-term stays in restricted areas violates county code even if no rental occurs

What This Means for Investors

The 28-day minimum fundamentally changes the investment model:

  • Higher quality tenants: Monthly renters tend to be professionals, snowbirds, or serious vacationers
  • Lower turnover: Fewer cleanings, check-ins, and guest management
  • More stable income: Predictable monthly revenue rather than fluctuating nightly rates
  • Different marketing: Focus on monthly rental platforms, snowbird sites, and corporate housing
  • Longer booking windows: Guests book 1-3 months in advance rather than days or weeks
  • Fewer guests annually: Potentially 6-12 tenants per year vs. 50+ with nightly rentals

Zoning Regulations for STRs in Key Largo

Understanding Key Largo’s complex zoning is essential for investment success:

Prohibited Zones

Vacation rentals (less than 28 days) are completely prohibited in:

  • Most single-family residential subdivisions
  • Neighborhoods zoned for permanent residential use
  • Areas without specific vacation rental designation
  • Properties without grandfather status or special zoning

Permitted Zones (With Annual Permit)

Vacation rentals may be allowed in:

  • IS-V (Improved Subdivision Vacation Rental): Specifically designated for vacation rental use
  • SR (Suburban Residential): Select areas only
  • MU (Mixed Use): Limited commercial/residential zones
  • UR (Urban Residential): Certain higher-density areas
  • OS (Offshore Islands): Some island properties

Gated Community Exception

Properties in gated communities with:

  • Controlled access points
  • Active property management association
  • Association-approved vacation rental management
  • May operate with appropriate permits despite surrounding restrictions

Map Verification Required

Monroe County provides vacation rental restriction maps showing:

  • Red zones: Prohibited areas (most common)
  • Yellow zones: Permitted with annual county permit
  • Green zones: Permitted in gated communities only

Access maps at: Monroe County Planning & Environmental Resources Department website or in-person at county offices

Pre-Existing/Grandfathered Properties

Some properties established as vacation rentals before ordinance implementation may have grandfather status:

  • Must have been operating legally with all permits prior to September 15, 1986, or under previous code provisions
  • Grandfather status is rare and property-specific
  • Cannot be assumed without documentary evidence
  • Not automatically transferable to new owners

Zoning Changes and Updates

Monroe County periodically reviews vacation rental zones:

  • New vacation rental permits are difficult to obtain in restricted areas
  • Existing permits are scrutinized carefully at renewal
  • Zoning can become more restrictive over time
  • No guarantee of permit renewal despite prior approval

Required Documentation for Key Largo Short-Term Rentals

To operate legally and maintain compliance, organize and maintain these documents:

  1. Special Vacation Rental Permit: Current annual permit from Monroe County
  2. Vacation Rental Manager License: Current license for designated manager
  3. Business Tax Receipt: Monroe County business license
  4. Florida DBPR License: State resort dwelling or condominium license
  5. Florida Sales Tax Certificate: From Florida Department of Revenue
  6. Tourist Development Tax Account Documentation: Confirmation of TDT registration
  7. Fire and Life Safety Inspection Certificate: Current passing inspection report
  8. Proof of Ownership: Deed or title documentation
  9. Septic/Wastewater Documentation: DEP or DOH approval if applicable
  10. Property Insurance Policy: Comprehensive coverage including liability (minimum $1 million recommended)
  11. Rental Agreement Templates: Compliant 28-day minimum lease agreements
  12. Guest Registry: Records of all rentals including tenant names, dates, and duration
  13. Posted Information:
    • Vacation rental permit number visible from front property line
    • Manager name, address, and phone number posted at property
    • County code enforcement contact: (305) 453-8800 (Key Largo office)
    • Rules of conduct for tenants posted conspicuously inside
  14. Neighbor Notification Receipts: Proof of required notification to property owners within 300 feet
  15. HOA/Condo Association Approval: If applicable, written permission for rental use
  16. Parking Plan Sketch: Diagram showing available guest parking spaces
  17. Complaint Log: Record of any complaints and responses (maintain for 3 months minimum)

Successful Key Largo operators maintain both physical and digital files with all permits prominently displayed as required by Monroe County Code.

Key Largo Short-Term Rental Taxes

The tax structure for vacation rentals in Key Largo involves multiple layers at state, county, and local levels:

State Taxes

Florida Sales Tax: 7.5% (comprised of 6% state + 1.5% county surtax)

  • Applied to gross rental amount
  • Collected from guests
  • Remitted to Florida Department of Revenue

Local Taxes

Monroe County Tourist Development Tax (TDT): 5% of gross rental receipts

  • Applied to rentals of 6 months or less
  • Separate from sales tax
  • Remitted directly to Monroe County Tax Collector
  • Monthly filing required

Total Tax Burden

Combined rate: 12.5% (7.5% sales tax + 5% TDT)

Example on $3,000 monthly rental:

  • Sales Tax: $225 (7.5%)
  • Tourist Development Tax: $150 (5%)
  • Total taxes: $375
  • Total charge to guest: $3,375

Platform Collection

Airbnb: Collects and remits Florida Sales Tax (7.5%) automatically but does NOT collect Monroe County TDT

VRBO: Does NOT collect either tax automatically; host responsible for both

Your Responsibility: Regardless of platform, you must:

  1. Register for Tourist Development Tax with Monroe County
  2. Collect 5% TDT from guests (add to rental price or include as separate “resort fee”)
  3. File monthly TDT returns even if no rentals occurred
  4. Keep records for at least 3 years

Tax Filing Requirements

Filing Frequency: Monthly

Due Date: Returns and payments due by the 20th of the month following the reporting period

Late Penalties:

  • Returns become delinquent if not filed/paid by the 20th
  • Penalties and interest accrue on late payments
  • Enforcement action for repeated failures

Discount Available: Property owners who file and pay through TouristExpress online system by the 20th can deduct 2.5% of the first $1,200 of tax due (maximum $30 discount)

Registration Process

Florida Sales Tax:

  1. Register at Florida Department of Revenue website
  2. Receive sales tax certificate
  3. File returns monthly or quarterly based on revenue

Tourist Development Tax:

  1. Register with Monroe County Tax Collector
  2. Can be done online or in-person
  3. Begin filing monthly returns upon first rental

Business Tax Receipt:

  • Register annually with Monroe County Tax Collector
  • Fee based on business classification

Important Tax Considerations

Gross Rental Amount: Taxes apply to the full rental charge including:

  • Base rent
  • Cleaning fees
  • Any additional charges
  • Credit card fees cannot be deducted from gross rentals

Exemptions: Limited exemptions include:

  • Federal government employees (with proper documentation)
  • Active duty military (with orders)
  • Rentals to 501(c)(3) organizations (with tax-exempt number)
  • Tenants with 6+ month continuous leases (become exempt in month 7)

Record Keeping: Maintain detailed records including:

  • All rental agreements
  • Payment receipts
  • Tax collection documentation
  • Guest information
  • Monthly reconciliation reports

Many Key Largo property owners work with accountants specializing in Florida vacation rental taxes or hire property management companies that handle tax compliance as part of their services.

Safety Requirements and Inspections

Monroe County enforces comprehensive fire and life safety standards for all vacation rental properties:

Required Safety Equipment

All vacation rental units must have:

Fire Safety:

  • Smoke detectors in every bedroom and on all habitable floors
  • Carbon monoxide detectors on each level with sleeping areas
  • Portable fire extinguishers on each floor in open areas or with location markings
  • Fire extinguishers properly maintained and within inspection dates
  • Clear exit routes and unobstructed egress

Pool Safety (if applicable):

  • Compliance with Residential Swimming Pool Safety Act
  • Proper fencing and gates with self-closing/self-latching mechanisms
  • Pool safety equipment readily accessible
  • Posted pool rules and emergency procedures

Life Safety Features:

  • Address clearly visible from street for emergency services
  • Emergency contact information posted inside property
  • Adequate lighting for nighttime visibility
  • Handrails on stairs and decks as required by code

Inspection Process

Initial Fire and Life Safety Inspection:

  • Required before Special Vacation Rental Permit issuance
  • Scheduled through Monroe County Fire Rescue online portal
  • Inspector reviews all safety equipment and building code compliance
  • Property must pass before permit approval

Annual Renewal Inspection:

  • Required for permit renewal every year
  • Same comprehensive review as initial inspection
  • Schedule early to avoid permit expiration
  • Fees implemented October 2021 (typically $100-$300 depending on property size)

Inspection Scheduling:

  • Request through: monroecounty-fl.gov/FormCenter/Fire-Rescue-21/Vacation-Rental-Inspection-Request-75
  • Allow 1-2 weeks for scheduling
  • Property must be ready for full inspection
  • Have all documentation available on-site

Pre-Inspection Self-Checklist

Before scheduling official inspection, verify:

  • All smoke detectors functional with fresh batteries
  • Carbon monoxide detectors installed and operational
  • Fire extinguishers charged and within inspection dates
  • All exits clear and accessible
  • Pool equipment compliant (if applicable)
  • Address numbers visible from street
  • Electrical outlets and fixtures safe and code-compliant
  • Septic system functional and approved
  • Hot water heater properly installed
  • HVAC systems operational

Florida Keys-Specific Considerations

Hurricane Preparedness:

  • Post evacuation routes and procedures
  • Provide information on Monroe County emergency notifications
  • Include hurricane supply recommendations in guest materials
  • Ensure property can be secured for storms

Tropical Environment:

  • Proper ventilation to prevent mold
  • Regular pest control (especially in vacant periods)
  • Moisture management systems
  • Weather-resistant exterior maintenance

Marine/Coastal Hazards:

  • Post information about marine life safety
  • Coral reef protection guidelines (Key Largo is heart of reef area)
  • Sun safety and heat warnings
  • Information about tides, currents, and weather conditions

Failed Inspections

If property fails inspection:

  • Inspector provides detailed report of deficiencies
  • Correct all issues promptly
  • Schedule re-inspection
  • Permit will not be issued or renewed until passing inspection
  • Operating without valid permit subjects owner to fines and legal action

Maintaining rigorous safety standards not only ensures compliance but also protects guests and reduces liability for property owners.

Key Largo vs. Other Florida Keys: Regulation Comparison

Understanding how Key Largo compares to other Keys communities is crucial for investment decisions:

Key West (50 miles south)

Advantages:

  • True short-term rentals allowed (nightly permitted)
  • Largest tourism market in Keys
  • International airport
  • Year-round high demand

Disadvantages:

  • Extremely limited licenses (special licenses capped and no longer issued)
  • Existing licenses trade at $50,000-$150,000+ premiums
  • Higher property costs
  • More competition
  • More restrictive regulations

Marathon (30 miles south)

Advantages:

  • 7-day minimum rental (weekly permitted)
  • Central Keys location
  • Municipal airport
  • Growing tourism market
  • More accessible licensing than Key West

Disadvantages:

  • Still more restrictive than traditional vacation rental markets
  • Moderate property costs
  • Limited compared to Key West attractions

Islamorada (15 miles south)

Regulatory Status:

  • Generally 28-day minimum like Key Largo
  • Some properties grandfathered for 7-day rentals
  • Selective vacation rental licensing available
  • Must apply to Village for rental license

Market:

  • Strong fishing tourism
  • Wedding and event venue demand
  • Higher-end market segment

Key Largo’s Position

Advantages of Key Largo:

  • Most affordable Florida Keys entry point
  • Closest to Miami (60 miles)
  • World-class diving and snorkeling
  • John Pennekamp State Park draws visitors
  • 28-day minimum creates less management intensity
  • Professional, longer-term tenant base

Disadvantages of Key Largo:

  • 28-day minimum eliminates traditional STR model
  • Strict zoning limits eligible properties
  • Must compete with longer-term rental market
  • Fewer attractions than Key West
  • Limited dining/nightlife compared to other Keys

Investment Strategy Comparison

Key West: Best for investors seeking traditional nightly rentals with maximum revenue potential, who can afford license premiums

Marathon: Sweet spot for weekly rental model with moderate investment and management requirements

Key Largo: Optimal for investors seeking monthly rental model with lower turnover, professional tenants, and affordable entry

Regulatory Stability

Key West: Frequent regulatory changes, active enforcement, political pressure on STRs

Marathon: Moderate stability, established licensing program, growing oversight

Key Largo (Monroe County): Established regulations, strict enforcement, unlikely to become more permissive

The 28-day minimum in Key Largo isn’t a bug—it’s a feature for investors who prefer stable monthly income over high-turnover nightly rentals.

Enforcement of STR Rules in Key Largo

Monroe County takes vacation rental compliance seriously with multi-layered enforcement:

Enforcement Mechanisms

Code Compliance Department:

  • Primary enforcement authority
  • Responds to complaints
  • Conducts proactive inspections
  • Monitors online listings for illegal operations
  • Key Largo Office: (305) 453-8800

Online Listing Surveillance:

  • County monitors platforms for unpermitted properties
  • Tracks properties advertising less than 28-day stays in restricted zones
  • Cross-references listings with permit database
  • Automated systems flag potential violations

Neighbor Complaints:

  • Most common enforcement trigger
  • Neighbors can report illegal short-term rentals
  • County investigates all complaints
  • Neighbor notification requirement during permitting reduces complaints

Fire Marshal Inspections:

  • Required annually for permit renewal
  • Inspectors report code violations
  • Failed inspections prevent permit renewal

Common Violations

High-Risk Violations (immediate action):

  • Operating without Special Vacation Rental Permit
  • Advertising/renting for less than 28 days in restricted zones
  • No Fire and Life Safety inspection
  • Missing required manager license
  • Unpaid taxes

Moderate Violations:

  • Expired permit operating
  • Missing posted information
  • Occupancy limit exceedances
  • Parking violations
  • Noise complaints

Minor Violations:

  • Incomplete documentation
  • Improper advertising (wrong permit number)
  • Late tax filings
  • Missing guest registry records

Enforcement Actions

First-Time Violations:

  • Warning notice and opportunity to cure
  • Compliance deadline (typically 15-30 days)
  • Follow-up inspection scheduled

Continued Non-Compliance:

  • Fines: Start at $500 and escalate quickly
  • Daily penalties: Additional fines for each day of continued violation
  • Permit suspension: Temporary revocation of rental privileges
  • Permit revocation: Permanent loss of vacation rental permit
  • Court proceedings: Legal action for egregious violations

Illegal Operations (no permit):

  • Immediate cease and desist order
  • Substantial fines ($500-$1,000 initial)
  • Daily penalties until operation stops
  • Criminal misdemeanor charges possible for continued violations
  • Property owners AND property managers both liable

Consequences Beyond Fines

Platform Removal:

  • Monroe County can report violations to Airbnb/VRBO
  • Platforms may remove non-compliant listings
  • Difficult to relist after removal

Guest Disruptions:

  • If forced to cease operations mid-rental, owner must refund guests
  • Legal liability to displaced guests
  • Reputation damage and negative reviews

Future Permit Applications:

  • Violation history considered in future applications
  • May prevent approval of new permits
  • Can affect other properties owned

Property Liens:

  • Unpaid fines can result in liens against property
  • Must be satisfied before property sale
  • Accrue interest over time

“Getting Away With It” Risk

Some owners attempt to operate illegally, but risks include:

Neighbor Reporting: Key Largo residents are highly aware of 28-day rule and actively report violators

High Visibility: Small community where illegal operations are noticed

Platform Cooperation: Airbnb/VRBO increasingly cooperate with enforcement

Financial Exposure: Fines can exceed rental income quickly

Criminal Records: Misdemeanor charges possible for willful violations

Property Value Impact: Violation history can affect property marketability

Proactive Compliance Strategies

Best Practices:

  • Maintain current permits and licenses
  • File taxes on time every month
  • Keep detailed records of all rentals
  • Post all required information prominently
  • Respond immediately to complaints
  • Build positive neighbor relationships
  • Schedule inspections early before expiration
  • Use reputable property management if self-managing is challenging

Red Flags to Avoid:

  • Advertising nightly or weekly stays in restricted zones
  • Operating without visible permit posting
  • Multiple violations on record
  • Tax delinquencies
  • Failed inspections without correction

Monroe County has allocated significant resources to vacation rental enforcement, making compliance non-negotiable for long-term success in the Key Largo market.

How to Start a Vacation Rental Business in Key Largo

Follow this detailed roadmap to launch your Key Largo vacation rental compliantly:

Step 1: Market Research & Property Selection

Before Purchasing:

  • Research Monroe County vacation rental maps to identify permitted zones
  • Understand that most Key Largo requires 28-day minimum rentals
  • Analyze monthly rental demand (snowbirds, remote workers, corporate housing)
  • Evaluate gated communities with short-term rental permissions if seeking weekly/nightly model
  • Study seasonal patterns (peak: January-April; slower: September-October)
  • Calculate realistic occupancy for monthly model (typically 60-80% vs. nightly 70-90%)

Property Criteria:

  • Verify property is in permitted vacation rental zone
  • Confirm no HOA/condo restrictions beyond county regulations
  • Evaluate property condition for Fire and Life Safety inspection passage
  • Consider parking availability (required for permit)
  • Assess proximity to diving, fishing, and Key Largo attractions
  • Check septic/wastewater system status

Financial Modeling:

  • Base projections on 28-day rentals, not nightly
  • Factor in lower turnover costs (cleaning, management)
  • Include permit fees ($490 initial, $100 annual)
  • Budget for inspections ($100-$300 annually)
  • Calculate 12.5% tax burden on gross receipts
  • Plan for 2-3 month vacancy periods

Step 2: Due Diligence & Purchase

Essential Verifications:

  • Obtain written confirmation from Monroe County Planning that property qualifies for vacation rental permit
  • Review property’s land use designation on official county maps
  • Check for any prior code violations or compliance issues
  • Verify existing permits (if any) are transferable or property can qualify for new permit
  • Review all HOA/condo documents for rental restrictions
  • Hire attorney familiar with Florida Keys vacation rental law

Purchase Considerations:

  • Include vacation rental permit qualification as contingency
  • Request seller disclosure of any rental history or violations
  • Verify all systems (septic, electrical, plumbing) meet code
  • Budget for immediate upgrades to meet safety inspection requirements

Step 3: Pre-Application Preparation

Obtain Required State Documents (in this order):

  1. Florida Sales Tax Certificate
    • Apply online: floridarevenue.com/taxes/registration
    • Free, instant approval typically
    • Prerequisite for DBPR license
  2. DBPR License
    • Apply at myfloridalicense.com
    • Choose correct category (single-family vs. condo/apartment)
    • Fee varies by property type
    • Processing: 2-4 weeks
  3. Monroe County Business Tax Receipt
    • Apply through Monroe County Tax Collector
    • Can complete online or in-person
    • Annual fee based on business type
  4. Tourist Development Tax Registration
    • Register with Monroe County Tax Collector
    • Online at monroetaxcollector.com
    • Receive TDT account number

Step 4: Property Preparation

Safety Equipment Installation:

  • Install smoke detectors in every bedroom and on each floor
  • Install carbon monoxide detectors on each level
  • Purchase and mount fire extinguishers on each floor
  • Ensure address numbers are large and visible from street
  • Install pool safety equipment if applicable
  • Check all electrical outlets and fixtures
  • Test all systems (HVAC, plumbing, electrical)

Property Setup:

  • Furnish property for 28-day+ stays (more homelike, less hotel)
  • Include kitchen basics, linens, toiletries for extended stays
  • Set up WiFi and utilities
  • Create outdoor spaces (essential in Keys lifestyle)
  • Provide information binder about Key Largo attractions
  • Install keyless entry or lockbox system

Step 5: Manager License & Permits

Vacation Rental Manager License:

  • Designate manager (yourself or property management company)
  • Apply through Monroe County Planning & Environmental Resources
  • Fee: $110
  • Processing: 2-3 weeks
  • Manager must be available 24/7 for issues

Special Vacation Rental Permit Application:

  • Download application from Monroe County website
  • Complete all sections thoroughly
  • Gather required documents:
    • Proof of ownership (deed)
    • Florida Sales Tax Certificate
    • DBPR license
    • Business Tax Receipt
    • TDT registration confirmation
    • Manager license
    • Septic/wastewater approval (if applicable)
    • Insurance documentation
    • Parking plan sketch
    • Property site plan
  • Neighbor Notification: Must notify all property owners within 300 feet
  • Submit application with $490 fee
  • Application review: 2-4 weeks
  • Sign authorization for code enforcement inspections

Step 6: Fire and Life Safety Inspection

Scheduling:

  • Once application approved, request inspection through Monroe County Fire Rescue online portal
  • Link: monroecounty-fl.gov/FormCenter/Fire-Rescue-21/Vacation-Rental-Inspection-Request-75
  • Schedule 1-2 weeks in advance
  • Fee: Varies by property size ($100-$300 typical)

Inspection Preparation:

  • Have all documentation on-site
  • Ensure all safety equipment functional
  • Property must be ready for occupancy
  • All systems operational
  • Pool compliant if applicable

After Passing:

  • Inspection report provided
  • Permit issued upon successful inspection
  • 30-day waiting period after neighbor notification before permit active
  • Receive permit number to post at property

Step 7: Marketing & Operations Setup

Listing Creation:

  • Advertise on monthly rental platforms (not just Airbnb/VRBO)
  • Specialized sites: VRBO (filter for monthly), Furnished Finder, Corporate Housing by Owner
  • Emphasize 28-day minimum in all advertising
  • Highlight Key Largo diving, fishing, proximity to Miami
  • Price at monthly rates (typically 15-25% discount vs. 28 nightly rates)
  • Target snowbirds (Oct-April bookings), remote workers, corporate relocations

Rental Agreements:

  • Create compliant 28-day minimum lease template
  • Include all required disclosures
  • Post rules of conduct in property
  • Maintain guest registry

Tax Setup:

  • Configure automatic TDT collection (add 5% to rent)
  • Set monthly reminder for tax filing (due 20th)
  • Use TouristExpress system for 2.5% discount
  • Track all gross receipts meticulously

Property Management:

  • Decide: self-manage vs. professional property management
  • If self-managing: establish local support network for maintenance
  • Create systems for guest communication
  • Develop cleaning protocols for monthly turnover
  • Set up routine property inspections during vacant periods

Step 8: Ongoing Compliance

Monthly:

  • File Tourist Development Tax return by 20th
  • File Florida Sales Tax return (if monthly filer)
  • Review bookings and occupancy

Annually:

  • Renew Special Vacation Rental Permit ($100 fee)
  • Schedule renewal Fire and Life Safety inspection
  • Renew Business Tax Receipt
  • Renew DBPR license (biennial)
  • Review and update property insurance
  • Audit compliance with all regulations

Continuous:

  • Maintain complaint log (3-month retention minimum)
  • Keep posted information current and visible
  • Respond promptly to any neighbor concerns
  • Monitor for regulation changes
  • Stay current on all fees and taxes

Advice from Successful Key Largo Vacation Rental Operators

Insights from experienced Key Largo property owners navigating the 28-day minimum:

“The 28-day minimum initially seemed like a limitation, but it’s actually become our preferred model. We get mature professional tenants who treat the property like their own home. Our cleaning and management costs are a fraction of what nightly rental operators spend, and our occupancy runs 75-80% year-round.” – Patricia M., 5-year Key Largo investor

“Focus your marketing on snowbirds booking October through April. We line up our winter tenants by August and they return year after year. These guests spend 2-3 months in Key Largo, take excellent care of properties, and provide stable income during high season.” – David R., owner of 3 Key Largo properties

“Don’t try to cut corners on the 28-day rule. Monroe County actively enforces, neighbors will report you, and the fines can exceed a year’s rental income quickly. One violation can cost you your permit permanently. It’s simply not worth the risk.” – Jennifer K., property manager for 12 Keys properties

“If you’re looking for the traditional weekly Airbnb model, Key Largo probably isn’t your market unless you can buy in specific gated communities like Ocean Pointe or Mariner’s Club. But if you’re interested in stable monthly income with low turnover, Key Largo offers excellent value compared to Key West or Marathon.” – Michael T., real estate investor and former property attorney

“The most successful Key Largo vacation rentals embrace the extended-stay experience. Furnish like a real home, not a hotel. Stock the kitchen. Provide bikes for getting around. Make it comfortable for someone staying a month or more. The diving community especially loves month-long stays to complete certifications and explore the reefs.” – Sarah L., Superhost managing 4 properties

“Use the 28-day minimum as a selling point, not a limitation. Market to remote workers who can work from paradise for a month. Target retirees escaping winter. Reach out to companies doing temporary relocations. The demand is absolutely there—you just need to find the right channels.” – Robert J., 8-year vacation rental operator

The consensus among successful Key Largo operators: embrace the 28-day model rather than fighting it, focus on quality over quantity of bookings, and maintain strict compliance to protect your investment.

Who to Contact About Key Largo STR Regulations

For official information and assistance:

Monroe County Planning & Environmental Resources Department

Key Largo Office:

  • Address: Murray Nelson Government Center, 102050 Overseas Highway, Key Largo, FL 33037
  • Phone: (305) 453-8800
  • Fax: (305) 453-8818
  • Website: monroecounty-fl.gov/178/Planning-Environmental-Resources
  • For: Vacation rental permit applications, zoning verification, land use questions

Monroe County Tax Collector

  • Mailing Address: PO Box 1129, Key West, FL 33041
  • Website: monroetaxcollector.com
  • Tourist Development Tax: jgil@monroetaxcollector.com or sroberts@monroetaxcollector.com
  • Phone: Contact through website for appropriate office
  • For: Business Tax Receipts, Tourist Development Tax registration and filing

Monroe County Fire Rescue

  • Inspection Requests: monroecounty-fl.gov/FormCenter/Fire-Rescue-21/Vacation-Rental-Inspection-Request-75
  • Phone: (305) 289-6018 (main office)
  • For: Fire and Life Safety inspections, safety requirement questions

Monroe County Code Compliance

Key Largo Office:

  • Phone: (305) 453-8800
  • For: Reporting violations, compliance questions, enforcement issues

Florida Department of Business and Professional Regulation (DBPR)

  • Phone: (850) 487-1395
  • Website: myfloridalicense.com
  • For: State resort dwelling/condominium licenses

Florida Department of Revenue

  • Phone: (850) 488-6800
  • Website: floridarevenue.com
  • For: Sales tax certificates, sales tax questions

Monroe County Main Office

  • Address: 1100 Simonton Street, Key West, FL 33040
  • Main Number: (305) 294-4641
  • Website: monroecounty-fl.gov

Key Largo Chamber of Commerce

  • Phone: (305) 451-1414
  • Website: keylargochamber.org
  • For: Tourism information, local business connections

Professional Referrals

For specialized assistance, seek:

  • Real estate attorneys experienced with Florida Keys vacation rentals
  • Accountants specializing in Monroe County vacation rental taxes
  • Property management companies licensed in Monroe County
  • Insurance agents familiar with Keys coastal rental properties

Future Outlook for Key Largo STR Regulations

What to expect for Key Largo vacation rental regulations going forward:

Anticipated Developments:

Zoning Restrictions:

  • Unlikely to become more permissive: Monroe County trend is toward maintaining or increasing restrictions, not loosening them
  • Possible additional zones restricted: Political pressure from residential communities may expand prohibited areas
  • Emphasis on affordable housing: Growing concern about vacation rentals reducing local housing availability
  • No indication of eliminating 28-day minimum: This requirement appears permanent for most residential areas

Enforcement Enhancement:

  • Technology investments: Expect improved monitoring systems for online listings
  • Increased code compliance staffing: County expanding enforcement capabilities
  • Platform cooperation: Growing coordination between Monroe County and rental platforms
  • Stiffer penalties: Trend toward higher fines for violations

Fee Adjustments:

  • Permit fees may increase: The $490/$100 structure could adjust upward to cover administrative costs
  • Inspection fees likely to rise: Fire and Life Safety inspection costs may increase
  • New fees possible: County may introduce additional charges for monitoring and enforcement

Tax Structure:

  • Tourist Development Tax stable at 5%: No indication of changes
  • State sales tax set at 7.5%: Unlikely to change without state legislation
  • Potential new local taxes: County could explore additional revenue sources from tourism

Market Dynamics:

Positive Long-Term Factors:

  • Limited supply: Restrictive zoning naturally limits vacation rental inventory
  • Growing demand: Key Largo’s diving reputation continues attracting visitors
  • Remote work trend: More professionals can work from anywhere, supporting 28-day+ stays
  • Snowbird market growth: Aging demographics increase winter rental demand
  • Proximity to Miami: Growing Miami metro makes Key Largo increasingly accessible

Challenges Ahead:

  • Affordable housing pressure: Local workforce housing shortage may drive more restrictions
  • Climate considerations: Hurricane risk and insurance costs affecting all Keys properties
  • Infrastructure limitations: Water, sewer, and road capacity constraints
  • Environmental concerns: Coral reef protection may bring additional regulations

Regulatory Stability:

The 28-day minimum requirement in Key Largo appears deeply entrenched and unlikely to change. Unlike Key West where short-term rental licenses exist but are capped, Key Largo’s structure simply prohibits most short-term use in residential zones through zoning rather than licensing caps.

Investment Perspective:

For investors who understand and embrace the 28-day model, Key Largo offers:

  • Stable regulatory environment (what you see is what you get)
  • Natural barrier to competition (strict zoning limits new entrants)
  • Growing demand for monthly rentals (demographic and work-from-home trends)
  • Most affordable Florida Keys entry point with strong brand recognition

The key is entering with eyes open: Key Largo is NOT a traditional short-term rental market and will never become one in residential areas. But for monthly rental investors, it offers a unique combination of desirable location, limited supply, and stable demand that can generate excellent returns with significantly less operational complexity than high-turnover vacation rental models.

Ready to Invest in Key Largo Vacation Rentals?

Key Largo presents a unique opportunity in the vacation rental space—but only for investors who understand and embrace the 28-day minimum rental model. While this requirement eliminates the traditional nightly Airbnb approach, it creates a different value proposition: stable monthly income from quality tenants with minimal turnover in one of America’s most iconic island destinations.

The “Diving Capital of the World” continues to attract snowbirds, remote workers, diving enthusiasts, and long-term vacationers seeking extended stays in paradise. With strict zoning that limits competition, proximity to Miami, and year-round appeal, Key Largo rewards investors who do thorough due diligence and maintain strict regulatory compliance.

The most critical takeaway: verify your property’s zoning status and vacation rental eligibility BEFORE purchasing. Never rely on assurances from sellers or agents—get written confirmation from Monroe County Planning that your specific property qualifies for a Special Vacation Rental Permit. This single step can save you from a costly mistake.

🔥 Ready to find the best vacation rental deals in Key Largo and beyond? Subscribe to The Offer Sheet and join 110,000+ investors getting curated, profitable short-term rental opportunities delivered directly to your inbox 6x/week.

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Remember: Key Largo’s 28-day minimum requirement is strictly enforced with significant penalties for violations. Always consult with legal and tax professionals familiar with Monroe County vacation rental regulations before making investment decisions. The regulatory landscape described here reflects information available as of October 2025 and may change.

October 11, 2025

In Local Regulations