Financing a short-term rental in Florida: what lenders and the state actually require

Occupancy intent is the first underwriting question

Every mortgage application declares how you will occupy the property, and the declaration is not a formality. Fannie Mae's Selling Guide defines the three occupancy types — principal residence, second home, and investment property — and each carries different pricing and rules. A second home must genuinely be for your personal use; a property bought primarily to rent nightly is an investment property and should be financed as one, even though investment pricing is higher.

Declaring second-home occupancy to get better terms on what is really a rental business is occupancy misrepresentation, which is mortgage fraud. If your honest plan is nightly rental with occasional personal use, say so and let the loan be structured truthfully. The pricing difference is real money; the alternative is a federal crime.

Why projected STR income is not lease income

A twelve-month lease is a contract producing documented, continuing income, and agency guidelines have a defined process for counting it. Projected short-term rental revenue is a forecast: seasonal, weather-exposed, platform-dependent, and regulation-sensitive. Conventional underwriting counts rental income per the Selling Guide's documentation rules — typically leases or the property's tax return history — so a projection from a listing platform generally cannot qualify you the way a lease can.

This is where DSCR lenders diverge among themselves. Some will underwrite short-term rental income using market-rent appraisals or documented booking history; others use long-term market rent even for an STR, which can dramatically change the ratio. If the deal only works at nightly rates, the choice of lender and their income methodology is the whole ballgame — surface that before you contract, not at underwriting.

Florida's licensing and tax reality

Florida regulates vacation rentals at both state and local levels. State law preempts local governments from prohibiting vacation rentals or regulating their duration or frequency — but the same statute grandfathers certain local ordinances and leaves cities and counties real power over registration, inspections, and nuisance enforcement. Practical result: legality varies block by block across Florida, and the state statute is the beginning of the research, not the end.

The tax side is just as concrete. Short-term stays are transient rentals under Florida law, subject to state sales tax on the rental charge, and many counties layer a local tourist development tax on top. A licensed rental collecting and remitting correctly is a business; an unlicensed one is accumulating liability. Underwrite the compliance costs into the pro forma, and confirm the property's specific jurisdiction allows your intended use before you write the offer.

Modeling STR cash flow without fooling yourself

Everything true of long-term rental analysis is true here, amplified. Vacancy becomes seasonality; management becomes cleaning, turnover, dynamic pricing, and platform fees; maintenance accelerates with guest churn; and insurance for short-term rental use is its own market with its own pricing. The IRS also treats short-term rental activity with specific rules — including how minimal-rental-use and personal-use days change what you report and deduct — so the after-tax picture needs a professional's eyes.

A useful discipline: model the property twice — once at conservative nightly assumptions, once as a plain long-term rental. If it only survives as an optimistic STR, you are not buying a property; you are buying a forecast.

How we fit in

Wholesale Mortgage Lending is a Florida mortgage broker. We arrange financing for second homes, investment properties, and short-term rental projects across conventional and DSCR programs, and we can tell you precisely how each lender on our panel treats STR income — which ones count it, how they document it, and what that does to your ratio. We are not attorneys, tax advisers, or licensing consultants: the local-ordinance research, state licensing, and tax registration belong with the appropriate professionals before closing, not after.