Key Takeaways
- StaySTRA data from 2024-2025 shows beach markets like Destin, FL and Myrtle Beach, SC swing from 90%+ occupancy in summer to under 30% in January, a gap of more than 60 percentage points.
- A $350K STR mortgage at $2,100/month generates roughly $600/month profit at 60% occupancy and loses $1,275/month at 25% occupancy, a swing that wipes out reserves within a season.
- Investment property loans do not carry the same forbearance protections as primary residence mortgages. A single missed payment triggers credit bureau reporting after 30 days and late fees after 15.
- Most STR courses, income calculators, and platform onboarding tools project top-performing months rather than annual averages, leading buyers to build pro formas on numbers that only exist for 8 to 12 weeks per year.
- Investors who survive occupancy drops hold at least 6 months of mortgage payments as liquid reserves, stress-test at 40% occupancy, and never model from summer peak data alone.
StaySTRA data for Destin, Florida shows 93.3% occupancy in June 2025 at an average daily rate of $451. In January of that same year, that market ran 25.8% occupancy at $292 per night. The gap between those two months is 67 percentage points and roughly $10,000 in monthly gross revenue. Investors who bought a Destin property based on a summer tour and a quick income estimate found out what that gap meant around February.
The income projection problem is documented. STR education courses, platform income calculators, and social media tutorials are structurally built around the best number. It is the only number that makes the spreadsheet work and gets someone to click buy.
What they rarely show is January.
The Projection Problem: What Courses Don’t Show You
Data indicates that the distance between projected and actual STR income is widest in the markets most aggressively marketed to new investors. Beach towns, mountain cabins, and lake destinations all share a trait: extreme seasonality that shows up clearly in the data but rarely in the pitch deck.
The mechanics are familiar to anyone who has studied them. A course seller screenshots a Myrtle Beach listing doing $7,200 gross in July. That number is real. It says nothing about November. A platform income estimator uses “projected annual revenue” built on a weighted blend of active listings, but many tools default to peak-season comparables when showing what a property “could earn.” The word “could” does enough work to avoid being technically wrong while being functionally misleading.
Sources in STR investor communities reveal a consistent pattern: buyers who purchased in 2021 and 2022, when national occupancy rates ran historically high, built their holding assumptions on a market that no longer exists at those levels. National average STR occupancy normalized to approximately 50% in 2025, down from around 57% in 2024. Anyone who underwrote at pandemic-era peak occupancy is running a property against math that stopped working when demand normalized.
The accountability question is direct: if a property generates $7,200 gross in July and $1,200 gross in January, which number belongs in a first-year income projection? The answer is neither in isolation. Annual average occupancy is the only honest baseline for underwriting. That number almost never leads the sales pitch.
What StaySTRA Data Actually Shows: Three Markets, Three Realities
StaySTRA data from 2024 through mid-2026 shows how wide the occupancy gap runs across different market types. These numbers are not edge cases. They are the documented seasonal baseline.
Destin, FL (beach): Peak occupancy in June 2025 hit 93.3% at an average daily rate of $451. In January 2025, occupancy dropped to 25.8% at $292 per night. That is a 67.5 percentage point swing. A property earning $12,621 gross in June earned $2,337 gross in January. An investor who underwrote this market using summer performance had an annual projection off by tens of thousands of dollars.
Myrtle Beach, SC (beach): July 2024 occupancy hit 90.3% at $267 ADR. January 2025 dropped to 29.0% at $133 per night. That is a 61.3 percentage point swing. Gross monthly revenue shifted from $7,200 in peak to under $1,200 in the trough. For an investor carrying a $2,100 monthly mortgage payment, the January math requires pulling from reserves every single month of winter.
Gatlinburg, TN (mountain): Often marketed as a four-season destination, and the data partially supports it. Peak occupancy in July 2024 was 80.7% at $306 ADR. January 2025 still dropped to 35.5% at $268. That is a 45 percentage point swing. Annual average occupancy sits at roughly 60.7%. A buyer projecting 80% year-round because July looked strong would be 20 percentage points wrong, which at $270-$300 ADR translates to roughly $1,620 to $1,800 in missing monthly revenue.
Nashville, TN (urban): Urban markets show less seasonal volatility, but the range is still real. Nashville ran 66.7% occupancy in June 2024 and dropped to 36.7% in January 2025, a 30 percentage point spread. At average ADR values around $280-$320, that January trough still puts most investors below break-even if they modeled from summer numbers.
Three Scenarios: What the Downside Actually Looks Like
Scenario 1: The Peak-Season Buyer in Destin
The investor closed on a two-bedroom beach condo in June, right after touring during peak summer bookings. The property was pulling $12,000 a month in gross revenue. An income estimator put annual earnings at $96,000. The pro forma looked like a home run.
The mortgage was $2,100 per month. Operating costs ran about $2,400 in peak months between platform fees, cleaning charges, utilities, and carrying costs. After the mortgage, they netted over $7,500 in June. They assumed that would average out to something workable year-round.
It did not. By January, they were generating $2,337 in gross revenue against $1,320 in non-mortgage operating costs. Net before mortgage: $1,017. After the $2,100 payment: a $1,083 monthly deficit. November and December were nearly as bad. By February, they had burned through $4,000 in reserves meant for maintenance and had used a credit card to cover the January mortgage payment.
They had no documented plan for 26% occupancy. Nobody had shown them that number before they bought.
Scenario 2: The Second-Property Buyer Who Ran Out of Reserves
The first STR was profitable. A mountain cabin purchased in 2021 that reliably generated positive cash flow through 2022 and into 2023. The investor used that success as the model for a second purchase and put nearly all available cash into the down payment on a beach market property.
The problem was sequencing. They closed with minimal reserves, assuming rental income from property one would cover any shortfall on property two until bookings ramped up. What they did not model was the stretch when both properties ran below 40% occupancy simultaneously.
Documents from mortgage servicer communications show a recognizable pattern in cases like this. The investor makes one or two payments using credit, misses one, catches up with a partial payment, and falls behind again. Each partial or missed payment generates late fees and damages the credit score needed to refinance or negotiate any relief. The reserves that would have absorbed the cash flow gap were simply not there.
Six months of mortgage payments per property in liquid reserves is the minimum buffer. Most buyers in this situation held two to three months across both properties combined.
Scenario 3: The Seasonal Market Host Without a Winter Plan
The Myrtle Beach investor understood seasonality intellectually. They knew summers would be strong and winters would be slow. What they underestimated was how extreme the math gets at 29% occupancy.
StaySTRA data shows Myrtle Beach in January 2025 at 29% occupancy and $133 ADR. At 29% over 31 days, the property books roughly 9 nights. At $133 per night, that is $1,197 in gross revenue. Subtract platform fees, one or two cleaning charges, utilities, property taxes, and insurance, and the investor might clear $200 to $300 before the mortgage. The mortgage is $2,100.
That is a $1,800 to $1,900 monthly deficit. Four months of that from November through February is a $7,200 to $7,600 hole in the year’s cash flow. If the investor did not model that deficit into their annual hold math, they ran out of money before the season turned back around.
What a $350K Mortgage Looks Like at Different Occupancy Levels
The table below uses a $350,000 mortgage at $2,100 per month and an average daily rate of $250 per night, representative of mid-range beach and mountain vacation rental markets. Operating costs include platform fees (3%), cleaning charges, utilities, property taxes, insurance, and a basic maintenance reserve.
| Occupancy Rate | Nights Booked | Gross Revenue | Operating Costs | Net Before Mortgage | Net After $2,100 Mortgage |
|---|---|---|---|---|---|
| 80% | 24 nights | $6,000 | $2,200 | $3,800 | +$1,700/month |
| 60% | 18 nights | $4,500 | $1,800 | $2,700 | +$600/month |
| 40% | 12 nights | $3,000 | $1,400 | $1,600 | -$500/month |
| 25% | 8 nights | $2,000 | $1,175 | $825 | -$1,275/month |
This property is profitable at 60% and above. It loses money at 40% and bleeds badly at 25%. In Myrtle Beach, Destin, and comparable beach markets, the winter months sit in that 25-40% range for three to five consecutive months every year. That is not a worst-case projection. That is the documented seasonal floor from StaySTRA data.
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What Lenders Actually Do When You Miss a Payment
The timeline moves faster than most investors expect.
Day 1: Payment is due. Nothing formal happens yet, but the clock starts.
Day 15: Most loan agreements assess a late fee at this point, typically 3% to 5% of the monthly payment. On a $2,100 mortgage, that is $63 to $105 added immediately.
Day 30: The missed payment is reported to all three major credit bureaus. One 30-day late payment on a mortgage typically drops a credit score by 60 to 110 points depending on the borrower’s overall profile. For an investor carrying multiple properties, that drop affects the ability to refinance, access a HELOC, or qualify for the next purchase.
Day 60: A second delinquency report goes to the bureaus. The servicer begins more aggressive outreach and typically assigns the account to a loss mitigation team. Formal default letters are issued.
Day 90: At 90 days delinquent, most loan agreements permit the servicer to initiate formal default proceedings. Some states require a Notice of Default filing at this stage. The foreclosure clock has started in many jurisdictions.
Day 120 to 180: Depending on the state and loan type, formal foreclosure proceedings may begin. Non-judicial foreclosure states like Georgia and Tennessee can move faster than judicial states like Florida and New York.
Investment property mortgages are not the same as primary residence loans. Programs that provided forbearance relief for COVID-era hardship applied to owner-occupied primary residences. Vacation rental loans and DSCR loans, which are common financing vehicles in STR investing, sit in portfolio and non-QM lending categories with no equivalent automatic protections.
DSCR lenders may offer forbearance on a case-by-case basis. Some allow 3-month payment deferrals with a balloon at the end of the term. Others require repayment of deferred amounts immediately when the deferral period ends. None of this is guaranteed or automatic. It requires calling the servicer, documenting the hardship, and negotiating. Servicers have more flexibility when investors call before missing a payment than when they call after going 60 days delinquent.
The Mortgage Bankers Association reported that overall residential mortgage delinquency rates increased to 4.26% in Q4 2025, up 27 basis points from Q3 2025. Investment property delinquencies typically run above owner-occupied rates. STR-specific delinquency data is not tracked as a separate category by the MBA, which means the full scale of vacation rental loan stress is not publicly visible in aggregate data.
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The Buffers That Were Missing
Investors who get into trouble with STR mortgages typically share one or more of three problems: they underestimated seasonal variance, they did not hold adequate cash reserves, or they built their model on peak-month projections instead of annual averages. Usually all three at once.
The reserve standard that experienced STR investors and DSCR lenders use is 6 months of PITIA (principal, interest, taxes, insurance, and HOA dues) per property. DSCR lenders require this at closing for a reason: they have seen what happens when it is not there. For a property with $2,100 in mortgage payments and total carrying costs of $2,800 per month, that means keeping $16,800 per property in liquid reserves. Not home equity. Not a 401(k). Liquid cash that can cover a missed booking month without triggering a credit event.
For investors buying second or third properties, that reserve requirement compounds quickly. Many skip it or pull below it to fund the down payment. That is where the domino starts.
The second gap is pro forma discipline. A legitimate STR pro forma uses annual average occupancy from historical data, not peak projections. For a beach market like Myrtle Beach running 57.8% annual average occupancy across 2024 and 2025 per StaySTRA data, that is the number in the model. Not July’s 90.3%. Not the platform income estimator’s “top performer” comparables. If the annual average does not produce enough gross revenue to cover the mortgage, operating costs, and a maintenance reserve of at least 1% of property value per year, the deal does not pencil regardless of what June looks like.
How Investors Protect Themselves
The investors who survive occupancy drops built their models differently from the start.
They use annual average occupancy, not peak months. Before making an offer, they pull 24 to 36 months of market data and identify the real annual average. That number, not the best quarter, goes in the income column.
They stress-test at 40%. If the property breaks even or comes close at 40% occupancy with full operating costs included, it can survive a bad season. If it only works at 70%+, it depends on market conditions staying favorable indefinitely. They won’t.
They hold 6 months of PITIA per property before closing, not after. Tapping the reserve fund to meet a closing date is not holding reserves. It is splitting the down payment into two buckets on paper and calling one of them savings.
They contact the servicer before things get bad. Loss mitigation teams at portfolio and DSCR lenders have more flexibility six months before a missed payment than they do six months after one. An investor who calls proactively, documents the cash flow problem, and asks about deferral options has real negotiating room. An investor in active default has very little.
They do not buy based on summer tours. Visiting a beach market in July and falling in love with the occupancy numbers from the past three months is how buyers get the math wrong. Reviewing January data is not romantic. It is how you understand what the trough actually costs.
The floor matters as much as the ceiling. Both numbers are in the data before you buy. The investors who look at both are the ones still holding properties when the market turns back around.
Frequently Asked Questions
What happens if I miss an STR mortgage payment?
A missed payment on a vacation rental or investment property mortgage triggers a late fee after 15 days, credit bureau reporting after 30 days, and formal default proceedings after 90 days. Credit score damage from a single 30-day late payment typically ranges from 60 to 110 points. Investment property loans do not carry the automatic forbearance protections that FHA and VA primary residence loans have, so any deferral must be negotiated directly with your servicer. The best practice is to call before you miss the payment, not after.
How much reserve should I hold for an STR?
The standard used by DSCR lenders and experienced STR investors is 6 months of PITIA (principal, interest, taxes, insurance, and HOA dues) per property in liquid reserves. For a property with a $2,100 monthly mortgage and total carrying costs of $2,800, that means $16,800 in accessible cash per property. Investors with multiple properties need to maintain this reserve independently for each one. Combining reserves across properties means a bad month on one can deplete the protection for all of them.
Can I get forbearance on a vacation rental mortgage?
Sometimes, but not automatically. DSCR loans and portfolio loans used to finance vacation rentals are not covered by federal forbearance programs, which apply to conforming loans on primary residences. Some non-QM lenders offer 3-month payment deferrals on a case-by-case basis, but deferred amounts must typically be repaid as a lump sum or rolled into the loan balance. Approval is not guaranteed. Contact your servicer early, document the cash flow shortfall, and ask specifically about deferral options before any payment is missed.
What happens when Airbnb income drops below the mortgage payment?
In the short term, you cover the shortfall from reserves or other income. If the shortfall persists, you either increase occupancy or ADR, sell the property, or eventually fall into default. The critical variable is how much reserve you hold and how long the drop lasts. In seasonal markets, income typically falls below total carrying costs for 3 to 5 months every year. That is why reserve requirements exist and why modeling from annual average occupancy matters more than peak-month projections. A property that works at annual average occupancy can survive the trough. One that only works at peak cannot.
How do I tell if my STR deal can survive an occupancy drop?
Stress-test the property at 40% occupancy before making an offer. Use the annual average ADR for that market, not peak-month rates. Subtract all operating costs including platform fees, cleaning, insurance, taxes, utilities, and a maintenance reserve of at least 1% of property value per year. If the property still covers its mortgage at 40% occupancy, it can absorb a difficult stretch. If it only works at 70%+, a seasonal trough will put you in deficit every winter. StaySTRA data shows the actual occupancy floor for most U.S. markets so you know what that stress test number should be before you build the model.
We do our best to keep our reporting accurate and up to date, but situations evolve and we are only human. Always verify current details directly with local officials and sources before making decisions.
Run the Numbers Before You Buy
The gap between peak occupancy and off-season trough is real in almost every STR market. The investors who know both numbers before they close are the ones who build hold strategies that actually survive the winter.
The StaySTRA Analyzer shows you annual average occupancy, seasonal variance, ADR trends, and revenue benchmarks for markets across the country. It is the data layer that goes in your pro forma before the projection, not after the purchase.
Sponsored — Beeline
Finance Your Next STR With a DSCR Loan
Qualify on property cash flow, not W-2 income. Beeline specializes in fast DSCR closings for STR investors. No personal income verification required.
Check Your DSCR Eligibility →Affiliate disclosure: StaySTRA may earn a referral fee.
For the return benchmarks by market type, What Is a Good ROI for an Airbnb Property walks through what realistic investment returns look like across coastal, mountain, and urban markets. For the cash flow mistakes that show up even when occupancy holds, What STR Investors Get Wrong About Cash Flow covers the operating cost gaps most buyers undercount before they buy. And if you are still in the research phase, How to Buy an Airbnb Property in 2026 covers the full acquisition process with the data checks that matter most.
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