Execution Beats Rate When Your Short-term Rental Is On The Line — The Quick Read: As of September 25, 2026, mortgage rates have climbed for four straight weeks, and short-term rental investors are once again fixated on who quotes the lowest number. That’s the wrong question. On an STR file, the lender’s ability to actually complete the appraisal and hit the rental income figure matters more than a fraction of a point. Miss that, and you don’t lose a little on your payment — you lose your due diligence money entirely.
I’ve spent eighteen years in lending watching investors chase rate and ignore execution. This month’s numbers make the stakes higher than usual.
What Changed
Rates moved up again, and non-QM lending kept growing regardless. The 30-year fixed averaged 7.03% for the week of September 24, 2026, up from 6.95% the week before, according to Freddie Mac’s survey. A year earlier, the same survey had it at 6.30% — a 73 basis-point jump.
That’s the fourth straight weekly increase. Rates went from 6.71% (September 3) to 6.76% (September 10) to 6.95% (September 17) to 7.03% (September 24), all per Freddie Mac. Roughly a third of a point in a month.
The Fed added fuel. On September 16, 2026, the Federal Reserve raised its target rate by a quarter point to a range of 3.75% to 4.00%, its first hike since 2023, voting 12-0. Treasury yields had already been climbing since Fed Chair Warsh’s Jackson Hole remarks in late August, and mortgage rates followed.
Existing-home sales for August came in at a seasonally adjusted annual pace of 3.98 million, down 2% from July, according to NAR’s existing-home sales data. Inventory rose past 1.6 million units for the first time since November 2019, giving buyers 4.9 months of supply — the most in over a decade. Median price still climbed 1.6% to $429,100, the 38th straight month of year-over-year gains. Every figure here varies by lender and program — guidelines, property type, leverage, and credit profile all apply.
None of that slowed non-QM. Non-QM issuance hit a record in the third quarter, and DSCR and investor loans now represent more than a third of non-QM production, up from 29% a year earlier. Rate went up. Investor lending kept expanding anyway. That tells you something about where the demand actually sits.
Key Takeaways
- Freddie Mac’s 30-year average hit 7.03% for the week of September 24, 2026 — a fourth consecutive weekly increase.
- The Fed raised rates a quarter point on September 16, its first hike since 2023.
- DSCR and investor loans now make up more than a third of non-QM production, even as rates rise.
- On a short-term rental, the appraiser’s rent report or the market data behind it decides whether the deal clears underwriting — not the quoted rate.
- Losing that rent figure after you’re under contract can cost you your due diligence deposit, which dwarfs any rate savings.
What I’m Seeing
Investors shop rate like it’s the only variable, and it isn’t even the important one on an STR file. Long-term rental DSCR loans are easy. Everybody in this business does them well. Short-term rentals are where lenders get snagged, and where the file can die after you’ve already spent money finding out.
Here’s the pattern I watch for. If a lender doesn’t have a working network of appraisers who can actually complete the short-term rental income report, you’re dead in the water before underwriting even starts. Without a defensible rental income figure, the deal doesn’t pencil — full stop.
Some lenders lean on the property’s history on AirDNA, a platform that tracks short-term rental performance. If there’s no AirDNA history for that address, the deal is dead with that lender, no matter how good the appraisal looks. Others take whichever number is lower — the appraisal’s figure or AirDNA’s — and use that. Do you know which one the lender you’re talking to actually uses? Most investors don’t ask. I think that’s the single most expensive question they’re not asking.
Saving a few dollars a month on rate means nothing if the loan gets declined mid-file and you walk away from thousands in due diligence money — earnest money, appraisal fees, inspection costs, depending on your state and the deal size. On a luxury short-term rental, that number gets large fast. You can lose thousands trying to save a couple hundred. That’s not a smart trade. That’s missing the forest for the trees.
What It Means for Real Estate Investors
The math changes the moment rates move, but the execution risk on an STR file doesn’t move with it — it’s structural, not cyclical. Rate direction is public information anyone can track. Which lenders can actually close a short-term rental file is not, and that gap is where deals get lost.
Rising rates put more pressure on debt-service coverage, which is the ratio DSCR lending is built around — rental income divided by the property’s monthly debt obligation. When rates climb, that ratio gets tighter, so the rental income figure matters even more than it did a year ago. A short-term rental’s income comes from one of two places in underwriting: the appraiser’s rent schedule, known as Form 1007, or market data sources like AirDNA. Get that number wrong, or work with a lender who can’t produce it credibly, and the ratio doesn’t clear no matter what the rate is.
Form 1007 wasn’t built for short-term rentals in the first place. Fannie Mae’s own guidance on the topic notes that the form’s underlying guide is silent on whether STR income should even be considered rental income for this purpose. Appraisers can’t just take a nightly rate, multiply by 30, and call it a monthly figure — that’s not how the form is designed to work. Which means the quality of the appraiser matters enormously on these files, and not every appraiser panel handles it well.
AirDNA has its own limits. It’s a modeled estimate built from comparable properties, not a hard number pulled from an owner’s tax return. AirDNA’s own documentation describes it as a weighted average of comparable performance, factoring in seasonality and market conditions — an estimate, not a fact. In thin markets with few comparable listings, that estimate gets shakier. If your property sits in a market without much STR inventory to compare against, the AirDNA number may not hold up, and a lender relying on it exclusively could reject a file that a different lender, using the appraisal instead, would approve.
This is where the “shop the rate” advice sold everywhere in this business quietly fails STR investors. Freddie Mac’s own chief economist has encouraged buyers to gather multiple rate quotes to save money — reasonable advice for a plain-vanilla purchase. It says nothing about whether the lender behind that quote can actually deliver the file. Two quotes at the same rate are not the same deal if one lender’s appraiser network can’t produce an usable Form 1007 for your property type.
I’d also flag a credit-quality signal worth watching. A rise in delinquencies has been reported among DSCR loans where rental income falls short of covering the mortgage payment, a reminder that the coverage ratio isn’t a formality — it’s the thing keeping the loan performing after closing, and it starts with getting the income figure right at underwriting. Current coverage guidelines are outlined on the product page rather than restated here.
My Take
Rate shopping on a short-term rental deal without asking about appraisal and income-verification execution is, in my opinion, backwards. You’re optimizing the variable that moves the least and ignoring the one that can kill the whole transaction. A quarter point on a mortgage is real money over time. Losing your entire due diligence deposit because the file died in underwriting is real money right now, and it’s usually the bigger number.
I’ve watched investors treat every DSCR lender as interchangeable because the paperwork looks similar. It isn’t. Long-term rental DSCR files are close to commoditized at this point — most shops that do them, do them fine. Short-term rental files are where the operational differences between lenders actually show up, and where a broker’s job stops being paperwork and starts being judgment. Knowing which lenders default to the appraisal figure, which lean on AirDNA regardless of what the appraiser says, and which have appraiser networks that can actually complete an accurate short-term rental income report — that’s the experience a broker brings to a file like this. That’s what we do at Lendmire when we place these deals, and it’s the reason I keep saying rate is the wrong first question on an STR purchase.
What I’d Do Now
Ask the execution questions before you ask the rate question. What is the loan officer’s experience specifically with short-term rental files, not DSCR files generally? What does the company’s track record look like on STR income verification? What do the reviews say, and what do the newer research and AI tools turn up when you look the lender up — that information is easy to find now, and there’s no excuse for skipping it.
Ask directly which rental income source the lender defaults to: the appraisal, AirDNA, or the lower of the two. If they can’t answer that clearly and quickly, take it as a signal. Ask whether your specific property has enough AirDNA history to support a data-driven income figure, or whether the file will lean entirely on the appraiser’s judgment.
If you’re weighing a purchase or a refinance on a short-term rental this fall, comparing execution across lenders matters as much as comparing quotes — our team can walk through how current DSCR loan programs fit a file like yours, and where an appraisal-dependent property might be underwritten differently than one with a longer STR track record. Guidelines and eligibility are set by individual lenders and are subject to change, so the current terms live on the program page, not in this column.
For investors evaluating STR files above jumbo loan sizes specifically, the underwriting mechanics shift again — worth reading before you go under contract on a higher-value property; see how a short-term rental gets underwritten differently above the jumbo line. And if you’re deciding between a DSCR loan and a bank-statement program for an STR purchase, the comparison of DSCR versus bank statement loans for short-term rentals is worth the read before you pick a lane.
For the end-to-end picture of how these loans work — qualification, structures, and the full process — see Lendmire’s complete DSCR loans guide.
Frequently Asked Questions
Does a lower rate quote mean a lender can actually close my short-term rental loan?
No. A rate quote tells you nothing about whether that lender’s appraiser network can complete an accurate short-term rental income report. Two lenders can quote the identical rate and have completely different odds of getting your file through underwriting, because the income verification process — not the pricing — is where STR files typically break down.
What’s the difference between the appraiser’s rent figure and AirDNA data on an STR file?
The appraiser completes a rent schedule that’s supposed to reflect market rental income, though the standard form wasn’t specifically designed for short-term rental conversion. AirDNA instead produces a modeled estimate based on comparable property performance in the area. Some lenders use one, some use the other, and some take whichever is lower — asking which method your lender uses before you apply can save you a declined file later.
Why would I lose my due diligence money if my rental income figure doesn’t hold up?
If the lender can’t verify sufficient rental income to support the coverage ratio the loan requires, the file can be declined mid-process, after you’ve already spent money on due diligence items like earnest money, inspections, and appraisal fees. Those costs, particularly earnest money on a higher-priced short-term rental, can run into the thousands — far more than any rate difference you were trying to save.
Should I still get multiple rate quotes on a short-term rental purchase?
Comparing quotes is worthwhile, but only after you’ve confirmed the lender can execute the file. Getting quotes is standard advice for any mortgage shopper, but on an STR deal it should come after you’ve asked about appraiser networks and income-verification methodology, not instead of asking.
Are rates likely to come back down before I lock a short-term rental loan?
I can’t predict that, and neither can the Fed with certainty. The Fed’s own September dot plot showed real disagreement among policymakers about the path ahead, with some officials expecting another increase and others expecting cuts. What I’d focus on instead is locking in a lender who can execute the file correctly, since that’s the variable within your control regardless of where rates move next.
Is a property with no AirDNA history unfinanceable for a short-term rental loan?
Not necessarily, but it narrows your options. Lenders that require AirDNA history to establish rental income may not be able to work with that property, while others relying primarily on the appraiser’s rent schedule may still be able to move forward, subject to lender guidelines and property review. This is exactly the kind of detail worth asking about before you apply, not after.
About Lendmire
Lendmire — NMLS# 2371349 — is a mortgage brokerage whose founder writes this column. DSCR investor programs reach 41 markets, including Washington, D.C.; consumer programs such as bank statement, HELOC and down payment assistance loans are arranged in 16 states; every loan is placed with, and underwritten by, a wholesale lender under that lender’s guidelines. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.
Investors focused on short-term rentals can review DSCR loans for Airbnb and short-term rentals.
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References
2. Federal Reserve FOMC Statement, September 16, 2026
3. NAR Existing-Home Sales Data
4. AirDNA Help Center — Rentalizer Revenue Calculator
This article is part of Lendmire’s Mortgage News series — every loan program’s qualification details, guidelines, and scenarios live on the loan options page.
Related reading: The Spreadsheet That Is Fighting The Market This Fall · You Lose Thousands Trying To Save A Couple Hundred · If You Like It, Lock It — The 10-year Tells You Why
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
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Legal disclosures. Lendmire (NMLS# 2371349) is a state-licensed mortgage brokerage that arranges financing through wholesale lender relationships. Lendmire is not a direct lender, depository institution, or registered financial advisor. The discussion above is general informational content about real estate financing — it is not financial, legal, or tax advice, and readers should consult licensed professionals for guidance on their individual circumstances. Loan inquiries are subject to lender underwriting; this article does not represent a commitment to lend. Loan terms, rates, and qualification standards vary by borrower, property, and state, and are subject to change at any time. Equal Housing Opportunity. NMLS Consumer Access: nmlsconsumeraccess.org.