The Quick Read: A DSCR lender sizes a beach house loan by taking the smaller of two limits: the loan-to-value cap on the appraised value, and the biggest payment the property’s annualized, haircut rental income can cover at the program’s coverage floor. Summer peaks do not carry the file, because lenders average the whole year first.
- On a purchase of a standard rental investment property, leverage typically runs 75%–80% LTV. A short-term-rental purchase tops out at 75% LTV.
- Seasonal income is averaged across twelve months, then reduced for vacancy and operating costs.
- Taxes, insurance, flood coverage, and HOA dues sit in the payment, so coastal costs can cap the loan before the LTV limit does.
- Select programs start at 1.00 coverage, subject to lender guidelines. None of this is a commitment to lend.
What a DSCR Lender Measures on a Beach House
A DSCR lender measures one thing: whether the property’s rental income covers its full monthly obligation. DSCR stands for debt service coverage ratio. You divide qualifying rental income by PITIA, which is principal, interest, taxes, insurance, and association dues.
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Rate source: Freddie Mac 30-yr average via FRED® — Federal Reserve Bank of St. Louis · effective Oct 29, 2026
Prefilled with starting assumptions — enter your own rent or nightly figures, taxes, insurance, and HOA for a more accurate picture.
Program parameters update from Lendmire’s centralized guideline source. Taxes and insurance are editable estimates.
As of Oct 29, 2026 · General Freddie Mac market benchmark, not a Lendmire loan offer. Rent, nightly rate, occupancy, taxes, and insurance are editable estimates. Short-term rental figures are estimates only and vary significantly by season, property type, management approach, and local short-term-rental rules — confirm local regulations before relying on them. Qualifying income for short-term rentals varies by program — some use appraisal market rent, others use documented STR history or projections — and is confirmed in underwriting. Not a Loan Estimate, approval, or commitment to lend. Program availability and eligibility are subject to lender guidelines, credit approval, property review, and underwriting.
A ratio of 1.00 means income equals the payment. Higher means more cushion. Across the wholesale network Lendmire works with, 1.00 is where select programs start. Stronger ratios open better pricing and higher leverage. Lendmire’s complete DSCR loans guide covers the basics if the formula is new to you.
A beach house makes the math harder because the income is lumpy. The numerator swings by season, while the payment stays the same every month. Most of the work in sizing the loan is turning that uneven income into one fair monthly figure.
One caution before the details. Clearing 1.00 does not mean the house produces positive cash flow. The ratio compares rent to PITIA only. Repairs, vacancy, management fees, utilities, and big replacements all sit outside it.
Does Your Use Qualify?
A beach house qualifies only if you treat it as an investment. DSCR loans are designed for non-owner-occupied investment properties. Because they are business-purpose investor loans, they are reviewed differently from a standard owner-occupied mortgage.
That rules out a pure family retreat. Mixed use is the gray zone, and lenders generally want the property run as a rental. Here is how the three common situations sort out.
| Your plan | Fit for a DSCR loan | Better path |
|---|---|---|
| Rented year-round, you never stay | Yes, subject to guidelines | DSCR purchase or refinance |
| Rented, with some owner weeks | Depends on the lender | Confirm use limits first |
| Family retreat, rarely rented | No | Second-home financing |
Plans that change after closing matter too. If you buy as a rental and move in later, you have changed the loan’s purpose. Decide your real use before you apply.
Which Income Number Counts?
Lenders pick one of three income figures, and the choice often moves the loan amount more than anything else. No national rulebook governs this. DSCR loans are non-agency products, so each program sets its own method.
| Income route | Best for | Main drawback |
|---|---|---|
| Twelve months of host history | Refinances, existing rentals | Needs a full year of records |
| Third-party market projection | Purchases with no history | Gets discounted by the lender |
| Appraiser’s long-term market rent | Conservative fallback | Can understate a strong beach rental |
On the short-term-rental track, programs we place files with typically look for about 12 months of hosting history. A new purchase has no history. In that case the lender may rely on a market projection, on the appraiser’s rent, or on whichever supported figure is lower. The exact rule varies by lender.
The appraiser’s rent comes from a rent schedule form. For one unit it is Form 1007. For two to four units it is Form 1025. Fannie Mae’s appraiser update explains that Form 1007 asks for monthly market rent supported by comparables leased monthly. It calls multiplying a nightly rate by 30 incorrect. It also says the form cannot estimate a nightly fee for a short-term rental.
Those are appraisal-form rules, not DSCR program rules. Non-agency lenders set their own treatment. The takeaway is practical, though. Long-term rent is a floor, and for a well-run beach rental it usually sits below what the property earns by the night.
McKissock, an appraiser-education provider, adds that the form leaves out vacancy, business expenses, and ancillary services. It notes an appraiser may turn to a market-data tool for short-term estimates. That is why many STR files add a separate income analysis on top of the appraisal.
How Seasonal Income Becomes One Number
Lenders annualize. They add up a full year, divide by twelve, and then apply a haircut for vacancy and operating costs. A strong July gets averaged with a quiet February.
Here is a modeled example. The inputs are assumptions for illustration, not market data. Express each month’s income as a multiple of the monthly payment.
- Three peak summer months earn 2.5 times the payment.
- Five shoulder months earn 1.2 times the payment.
- Four winter months earn 0.4 times the payment.
Add those up and divide by twelve. The annual average is about 1.26 times the payment. Now apply a modeled haircut of one-fifth for vacancy and expenses. The qualifying ratio lands near 1.01x.
Look at the gap. The house looks like a 2.5x property in July. The lender sees a 1.01x property. That is why a strong summer cannot carry the file.
How the Loan Amount Gets Set
The loan amount is the lesser of two limits. The first is leverage. The second is the payment your qualifying income can support.
The leverage limit. On a purchase of a standard rental, most files land between 75% and 80% LTV, meaning 20% to 25% down. On a short-term-rental purchase, the ceiling is 75% LTV. On a short-term-rental refinance, expect around 70%. Cash-out on short-term-rental collateral is capped at 70%, while cash-out on a standard rental tops out at 75%. Appraised value drives all of these, so a low appraisal shrinks the loan.
The payment limit. Take your qualifying annual income, divide by twelve, and divide by the program’s minimum coverage. At a 1.00 floor, the largest payment you can carry equals your qualifying monthly income. A higher floor lowers that number. The payment limit then converts back into a loan size through the terms and the cost of taxes, insurance, and dues.
On a beach house, the second limit often wins. Winter months pull the average down, and coastal carrying costs push the payment up. The same house can show a comfortable LTV and a thin coverage ratio.
A larger down payment helps in a specific way. It lowers the payment, which can lift the ratio. It does not erase credit floors, reserve rules, or property eligibility. The strongest files clear both tests: enough equity and enough rental coverage.
Other program ranges that frame the answer, all subject to lender guidelines:
- Credit: a 620 floor exists in parts of the network, most programs want around 660, and 700 or higher unlocks the strongest tiers. Short-term-rental files generally expect 640 or more.
- Loan size: up to $3,000,000 on standard programs. Above $2,500,000 the network generally holds to 30-year fixed structures.
- Reserves: commonly about 6 months of PITIA, stepping up to about 9 months above $1,500,000.
Why the Payment Side Can Cap the Loan
The denominator is where coastal ownership bites. Taxes, insurance, and association dues all count in PITIA. If any of them rise, the ratio falls even when bookings stay strong.
Flood coverage deserves a plain explanation. Federal flood rules require flood insurance on buildings in a mapped high-risk zone when the loan comes from a federally regulated lender or carries federal backing. The FEMA lending guidance describes this requirement. Whether that mandate applies directly to a given DSCR lender depends on the lender. Plan on flood coverage being part of the file for a house in a mapped flood zone, and the premium goes into the payment.
Get your insurance quotes before you fall in love with a loan amount. A premium that changes late in the process can pull the ratio under the floor.
What Happens When the Peak Months Underperform
Peak months carry the most weight, so a soft summer moves the answer more than any other change. Run the same modeled house with peak months 20% lower.
| Scenario | Peak months | Ratio after haircut |
|---|---|---|
| Base case | 2.5x payment | about 1.01x |
| Summer down 20% | 2.0x payment | about 0.91x |
At 0.91x, the file misses a 1.00 floor. You have several paths, each subject to lender guidelines:
- Borrow less, so the payment falls roughly 9%.
- Put more down, which lowers the payment the same way.
- Compare against the appraiser’s long-term rent, which can be the number that clears when booking projections are modest.
- Ask about coverage below 1.00. That path is available through select lenders in the network, with leverage and terms adjusted.
Notice that 1.00 and sub-1.00 are separate paths. Many select programs start at 1.00. A different select-lender path takes lower coverage and adjusts leverage and terms to match.
Structures That Help in the Off-Season
The annual average can clear the ratio while winter months run negative. Your bank balance feels the monthly picture even though the underwriting counts the yearly one. Reserves are the buffer.
Reserves vary by lender, leverage, loan size, and transaction type. About 6 months of PITIA is common. Conservative rate-and-term files at modest leverage under $1,500,000 can see reserves waived. Larger loans typically step up to about 9 months.
Structure also helps. The spine of the market is the 30-year fixed. Extended terms such as 40-year and interest-only periods are available through select lenders in the network. Interest-only lowers the payment during the period, which can lift the ratio and ease slow months. ARM structures exist for investors who want them. Each option changes pricing and eligibility, so compare them as a package rather than one feature at a time.
Tax treatment varies; consult a qualified professional.
DSCR vs. conventional financing
There are two common ways to finance an investment property, and they qualify you differently — here’s how investors weigh them.
Why investors choose it
- Qualifies on the property’s rental income — no personal tax returns, W-2s, or pay stubs needed to document income.
- No personal debt-to-income ceiling to clear, so existing mortgages and obligations don’t cap your borrowing the same way.
- Can be closed in an LLC, keeping the property inside a business entity.
- Built for scaling — not held to the limit on number of financed properties that conventional financing applies.
- Underwriting centers on the deal: generally qualifies when the rent covers the payment, a 1.00x coverage ratio being a common baseline (confirmed in underwriting).
- Designed specifically for investment property, including long-term and, where the program allows, short-term rentals.
Where it’s strong
- Often the lowest ongoing financing cost for a buyer who fully qualifies on personal income — a fit for a first property or a cost-first purchase.
Trade-offs for investors
- Requires full personal income documentation and must fit within a debt-to-income limit — salary, existing debts, and other mortgages all count.
- Typically held in your personal name rather than a business entity.
- Caps how many financed properties you can carry, which can become a ceiling as a portfolio grows.
- Evaluates you as a borrower as much as the property, which usually means more paperwork.
How investors usually choose: a first or single property often optimizes for the lowest financing cost; portfolio builders often optimize for leverage, vesting in an LLC, and scaling past conventional caps. The right answer depends on your goals, the property, and current guidelines — both paths run through select lenders in Lendmire’s wholesale network, with eligibility and terms confirmed in underwriting.
Where the General Rule Breaks
A strong short-term rental on a weak rent schedule. If the lender will not accept the short-term income path, the loan shrinks to what long-term rent supports. That can understate a well-run beach house by a wide margin. Choose a lender whose method matches your property.
No hosting history. A new purchase cannot show twelve months of statements. Projections get discounted, and the appraiser’s rent becomes the fallback.
Income concentrated in a few months. A lender that looks only at trailing history can penalize a house that earns most of its money in a short window. Ask how a lender treats seasonality before you apply.
Multi-unit beach properties. These use the Form 1025 rent schedule and may blend short-term and long-term income.
Condos and condo-hotels. Eligibility depends on the lender and the building. Confirm before you count on the income.
Local rules. Short-term rental rules can vary by city, county, HOA, and property type, so investors should confirm local rules before relying on projected rental income.
Property types not offered. Manufactured homes (single- and double-wide), log homes, and barndominiums are not offered in the network’s DSCR programs, however well they rent.
Documents to Gather
Seasonal files turn on proof. Pull these early:
- Twelve months of platform statements, matched to bank deposits.
- Calendar or booking history that shows the seasonal pattern.
- Any management agreement.
- Permits, licenses, and HOA approvals.
- Current insurance quotes, including flood coverage if the house is in a mapped zone.
DSCR files require no personal income documentation, since qualification runs on the property’s income. The property’s own paperwork still has to be in order.
Key Terms Defined
DSCR (debt service coverage ratio): Qualifying rental income divided by the full monthly payment on the property.
PITIA: Principal, interest, taxes, insurance, and association dues, which together make up the monthly obligation.
LTV (loan-to-value): The loan amount as a percentage of the property’s appraised value.
Annualizing: Adding up twelve months of income and dividing by twelve, so one strong season does not set the figure.
Haircut: A reduction a lender applies to gross rental income to allow for vacancy and operating costs.
Form 1007 and Form 1025: Appraisal forms that estimate market rent for a single unit and for a two-to-four-unit property.
Hosting history: Your record of actual short-term rental bookings and payouts on the property.
Frequently Asked Questions
Can a DSCR lender count my summer income only?
No. Lenders average the full year first, then reduce the figure for vacancy and expenses. A strong summer improves the average, but the slow months still count against it.
Why would my loan be smaller than the LTV limit allows?
The payment limit can be tighter than the leverage limit. Winter months drag the average down, and coastal taxes, insurance, flood coverage, and dues raise the payment. Whichever limit is lower governs.
Is nightly rate times 30 a valid monthly rent?
Not on the appraiser’s rent form. Fannie Mae’s appraiser guidance rejects that shortcut, and lenders generally look for documented or market-supported income instead.
Can I use a DSCR loan and still stay in the house myself?
Only within the lender’s use limits, and a family retreat does not fit the program. DSCR loans are built for non-owner-occupied investment properties, so decide your real use before you apply.
What if my coverage is below 1.00?
Coverage below 1.00 is available through select lenders in the network, with leverage and terms adjusted. Many select programs start at 1.00, so the two are different paths.
Next Step
If you are buying or refinancing a rental property and want to see how the numbers work, Lendmire can help you compare DSCR loan options based on the property income, credit profile, leverage, and investor goals. Lendmire is a broker that arranges these loans through select lenders in its wholesale network across 41 markets, including Washington, D.C. Programs change, and every file is underwritten individually.
The best beach house loan is usually the one where the lowest-income month still looks survivable on paper.
About Lendmire
Lendmire, NMLS# 2371349, is a mortgage brokerage focused on investor financing, arranging DSCR loans in 40 states plus Washington, D.C. — 41 markets total. Qualification is based on the property’s income rather than personal income documentation, subject to lender guidelines, making it a fit for LLC-held rentals and scaling portfolios. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.
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References
1. Fannie Mae Appraiser Update
2. McKissock: Form 1007 and Short-Term Rental Appraisals
3. FEMA: Flood Insurance for Lending Professionals
This article is part of Lendmire’s DSCR loan program — full qualification details, guidelines, and scenarios live on the program page.
Related reading: Can You Get a DSCR Loan Without Showing Personal Income? · Can a DSCR Lender Do a High-LTV Cash-Out on a Rental? · How Much a DSCR Lender Will Lend on a Vacation Rental in an LLC?
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
- Mortgage Loan Originator · NMLS# 1129696 · Verify on NMLS Consumer Access
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- North Carolina Insurance Producer · License# 19053198 · Property, Casualty, Life, Health · Verify on NAIC SBS
- Lendmire LLC · Firm NMLS# 2371349 · Verify firm licensure
Important disclosures. Lendmire (NMLS# 2371349) is a licensed mortgage brokerage. Lendmire is not a direct lender, depository institution, or financial advisor. All loan inquiries are subject to lender underwriting; this article does not constitute a commitment to lend. Rates, terms, and program guidelines are subject to change without notice and vary by borrower profile, property type, and state. Information in this article is general in nature and is not financial, legal, or tax advice. Equal Housing Opportunity. NMLS Consumer Access: nmlsconsumeraccess.org.