The Quick Read: Lenders size this loan on what the property is worth today and what the short-term rental earns today, not on the addition you plan to build, so the cash-out comes from the existing home and its documented booking history and arrives as one lump sum at closing. The new space adds nothing to the file until it exists. Plan the project around that fact.
- Leverage: cash-out on short-term-rental collateral tops out around 70% LTV, versus around 75% on standard long-term rentals.
- Credit and history: expect a 640+ credit score and about 12 months of hosting history on a short-term rental.
- Coverage: the refinance coverage floor on a short-term rental is 1.00, measured against the new, larger payment.
- Value: the appraisal values the property as it stands. A planned addition does not count.
- Cash flow: you carry the build costs yourself, because a cash-out pays once at closing instead of in construction draws. Every figure here varies by lender and program — guidelines, property type, leverage, and credit profile all apply.
Everything below walks through those points in the order a lender takes them. All terms are typical ranges from select lenders in Lendmire’s wholesale network and are subject to lender guidelines.
DSCR Cash-Out Calculator
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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 property’s value, balance, taxes, and insurance 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. Property value, balance, taxes, and insurance are editable estimates. Maximum loan-to-value varies by lender, program, property type, and seasoning. Not a Loan Estimate, approval, or commitment to lend. Program availability and eligibility are subject to lender guidelines, credit approval, property review, and underwriting.
Key Terms Defined
DSCR (debt service coverage ratio) is the property’s monthly rental income divided by its monthly housing obligation. A result of 1.00 means rent matches the payment exactly.
PITIA is principal, interest, taxes, insurance, and association dues. It is the full monthly obligation the rent has to cover.
LTV (loan-to-value) is the loan balance divided by the appraised value. Lower LTV means more equity stays in the property.
Cash-out refinance replaces your current loan with a larger one and pays you the difference in cash at closing.
Seasoning is how long you have held title before the lender will refinance on a new value.
Hosting history is your documented track record of operating the property as a short-term rental, usually shown through platform statements and matching bank deposits.
ADU (accessory dwelling unit) is a second, smaller residence on the same lot, such as a backyard cottage or a garage conversion.
As-is value is the appraised value of the property in its current condition, before any planned work.
How Does a Lender Treat This Loan From Start to Finish?
A lender treats it as a business-purpose cash-out refinance on an operating short-term rental. It checks the property’s income, its as-is value, your credit and reserves, and whether the rental use is legal. The addition or ADU is only a use of the cash.
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 is why the file centers on the property rather than your paycheck. A DSCR file qualifies primarily on property-level rental income covering the payment, subject to lender guidelines.
The table below shows what each stage checks. Think of it as the whole file on one page.
| Stage | What the lender checks | What you supply | What can go wrong |
|---|---|---|---|
| Eligibility | Property type, legal STR use | Permits, HOA letter | Use not allowed |
| Income | Booking history or projection | Platform and bank statements | Short or uneven history |
| Appraisal | As-is value, market rent | Access, unit details | Value below hopes |
| Sizing | LTV cap, seasoning | Payoff, title date | Cash-out less than budget |
| Coverage | Rent versus new PITIA | Insurance, tax, HOA info | Ratio dips below the floor |
| Reserves and credit | Liquid cash, score | Asset statements | Thin reserves |
Each stage can stop the file on its own. The strongest files clear both tests: enough equity and enough rental coverage.
What Counts as Income on an Operating Short-Term Rental?
Income comes from documented booking history, a market-data projection, or a blend, depending on the program. For a property you already operate as a short-term rental, many programs lean on a trailing history of platform payouts that match your bank deposits. Programs differ, so ask which method a given lender prefers.
Here is how the main methods compare.
| Method | What it uses | Where it fits | Main weakness |
|---|---|---|---|
| Hosting history | Platform statements, deposits | Existing STR refinance | Seasonal swings |
| Market projection | Comparable listings | Purchases, thin history | An estimate, not a result |
| Appraiser rent analysis | Monthly market rent | Fallback or cross-check | Not built for nightly income |
Projection tools matter because many files reference them. AirDNA’s Rentalizer projects revenue from comparable listings within a 10-mile radius, produces a weighted average, and adjusts for seasonality and demand. The comps are matched on bedrooms, bathrooms, and guest count.
Treat that output as a ceiling, not a verdict. AirDNA’s own forecasting guide notes that the Rentalizer assumes the property is available all year, so the estimate shows full potential revenue. Lenders know this, which is why programs often discount projections. The size of that discount is program-specific.
Seasonality is the other quirk. A beach cabin or ski house earns unevenly, and one strong quarter can hide three slow ones. Lenders generally want the income smoothed across the full history rather than annualized from a peak month. If your best months are not typical, say so up front and let the numbers carry the case.
What Does the Appraisal Do, and What Can It Not Do?
The appraisal sets the property’s as-is value and supports a market rent figure. It does not prove your nightly income, and it does not credit a building that does not exist. Those two limits shape the whole loan.
Start with the rent forms. The Fannie Mae Selling Guide’s appraisal forms page lists Form 1007, the single-family comparable rent schedule, and Form 1025, the small income property report for two- to four-unit properties. These are industry form names only. DSCR loans are not agency products, and their program rules come from the lenders themselves.
Form 1007 has a built-in limit. McKissock, an appraiser-education provider, explains that the form documents monthly rent and is not designed for nightly short-term-rental income. The same article says the lender makes the final call on income. In practice, your platform history or projection supplies the short-term income evidence, and the appraisal supports value and market rent.
The unit count raises a quieter question. An existing single-family home gets a rent schedule on Form 1007. A two- to four-unit property uses Form 1025, which captures rent unit by unit. Whether a finished detached ADU changes how the property is classified depends on the appraiser and the program. Raise it with your broker before you finalize plans, not after.
Appraisers also work from three approaches: sales comparison, cost, and income. The Appraisal Institute’s commentary, republished by the Casita Coalition, notes that the cost approach can capture items like permit costs and impact fees. It also notes that agency guidance accepts projected rent only for existing ADUs, not proposed ones. That is agency-world context, but the lesson carries over. A proposed unit is a plan, and plans do not appraise.
Why the Unbuilt Space Counts for Nothing
An addition or ADU that has not been built adds no value and no income to the file. The lender sizes the loan on the as-is value, so the build cost may not come back to you until the finished property is appraised again.
This is the most common misunderstanding on this topic. Many investors assume a lender will lend against the after-repair value. That is how a construction or after-improved-value loan works, as an architecture firm’s overview of ADU financing explains: those loans appraise on the completed value. A standard cash-out refinance does not.
Even after completion, value follows comparable sales, not what you spent. An improvement may support a higher appraised value, depending on comps and underwriter review. ADU comps can be thin. Appraisers may widen the search radius or make larger adjustments, and a legal, permitted unit with documented rent tends to be easier to support.
So the first question is not how much the finished space will be worth. It is how much cash today’s equity can release.
How Big a Cash-Out Can You Actually Pull?
The cash-out is limited by the leverage cap on your as-is value, less your existing loan and closing costs. On short-term-rental collateral that cap is up to 70% LTV on a cash-out refinance, versus around 75% on standard long-term rentals. Loan size on standard programs runs up to $3,000,000. Final terms depend on lender guidelines, property type, leverage, and the borrower’s complete credit picture.
Run the numbers on a modeled property. These are illustrative assumptions, not market data or a program quote. Say your current mortgage balance equals 50% of the appraised value. At a 70% cap, the most you can borrow is 70% of that value, so the room above your payoff is about 20% of value. Closing costs and any required reserves come out of that room first.
Now say the addition costs the equivalent of 15% of the property’s value. Most of the remaining room goes to the build, and almost nothing is left for a contingency. If the appraisal lands below your expectation, the room shrinks fast. At a value 5% lower, the same 70% cap releases noticeably less cash, and the project may no longer fit.
Seasoning matters too. About six months of ownership is the common expectation for a cash-out, and a lender sizes on the appraised value once that period passes. Because most investors refinance well after purchase, this is rarely the binding constraint.
A larger down payment on an original purchase builds equity and lowers the payment, but it never erases leverage caps, credit floors, reserve rules, or property eligibility. Cash-out math always comes back to the same two tests.
Will the New Payment Still Clear the Coverage Test?
Yes, if existing rent still covers the larger payment at or above the program floor. The lender tests the new loan against current income, not against income the addition might earn later. On a short-term-rental refinance, 1.00 is the coverage floor in these programs.
Continue the same modeled property. Suppose current short-term-rental income covers the existing payment at about 1.45x. Pulling the loan from 50% to 65% of value raises the balance by 30%, so the payment rises by roughly 30% too. Coverage falls to about 1.1x. That clears a 1.00 floor with a little cushion, but not much.
Now stretch the draw to the full 70% cap. Coverage slides closer to 1.0x, and any dip in documented income could push it under. Many borrowers do better pulling slightly less than the cap, which keeps the ratio healthier and leaves reserves intact.
Two reminders keep this honest:
- DSCR compares rent to PITIA only. Clearing 1.00 does not mean the property produces positive cash flow, because repairs, vacancy, management, utilities, and capital costs sit outside the calculation.
- Coverage below 1.00 is available through select lenders in the network, with leverage and terms adjusted. It is a separate path from the standard 1.00 floor, so do not assume your file qualifies for it.
Interest-only periods and extended terms, such as a 40-year structure, are available through select lenders in the network. They can improve coverage on a borderline file, though the tradeoffs vary by lender.
How Do You Fund a Build When the Cash Arrives All at Once?
You carry the project yourself. A cash-out refinance pays a lump sum at closing, unlike a construction loan that releases money in stages as work is finished. Generally, the lender does not verify or control how business-purpose proceeds are spent, though specifics vary by program.
That structure has practical consequences:
- Your contractor schedule must match your cash. Draw schedules from contractors often assume milestone payments. You will have the money upfront, which helps, but you must manage it carefully.
- Bookings may pause. If construction takes the main unit offline or disrupts guest stays, your trailing income can weaken. That does not affect this loan, which is underwritten before you build. It does affect any later refinance that relies on that history.
- Reserves still apply. Reserves commonly run around 6 months of PITIA, though they vary by lender, leverage, loan size, and transaction type. Larger loans typically step up. Do not count the build budget as your reserves.
Consider a typical sequencing plan. You refinance first, while your hosting history is strong and unbroken. You build next. After completion, the finished space can be refinanced again, appraised and supported by rent, and underwritten with short-term or long-term income depending on the program. This is two loans stacked in time, and it is the cleanest path for most owners.
Where the General Rule Breaks
The rule that value and income come from today’s property breaks in a few predictable places. Each deserves a check before you commit.
The appraisal comes in low. This is the most common failure. Lower value means lower cash-out and possibly a project that no longer fits. Pull slightly less than the cap when you can, and keep a contingency separate from the loan.
Hosting history is short. Programs expect about 12 months of hosting history on a short-term rental. A newer host may need to wait, rely on a projection-based path where a program allows it, or choose a different structure. Eligibility depends on the lender.
The new space cannot be rented short term. Adding an ADU can raise a separate permit or zoning question even when the main home is permitted. Check this before you design the project.
The property type is not eligible. Manufactured homes (single- and double-wide), log homes, and barndominiums are not offered through the network’s DSCR programs. A planned conversion that changes the property into one of those types would remove it from eligibility.
The loan is small or large. Standard programs run up to $3,000,000, and above $2,500,000 the network generally holds to 30-year fixed structures. Balances below the standard minimum route through select lenders.
Part of the project is personal. An addition for personal use sits awkwardly inside a business-purpose loan. If the new space is meant partly for your own use, talk through that with your broker before applying.
Cash-Out, Construction Loan, or a Two-Step Plan?
The right structure depends on project size, equity, and how soon the new space can earn. A cash-out refinance fits when equity is ample and coverage holds. A construction loan fits when the finished value matters more than today’s value.
| Option | What it credits | Best fit | Main risk |
|---|---|---|---|
| Cash-out now | As-is value, current rent | Strong equity, modest build | Build cost may exceed room |
| Construction loan | Completed value | Larger projects | Draws, inspections, a second loan to follow |
| Cash-out, build, refinance | As-is first, finished value later | Most owners | Two sets of closing costs |
The decision comes down to equity and coverage. If both are strong, cash-out first is often the simplest. If equity is thin, a construction or after-improved-value product may reach further, but you take on a different loan with its own mechanics. Through a broker that shops multiple wholesale lenders, you can compare how each structure sizes your specific file. The best program for your situation depends on your property, credit profile, leverage needs, and documentation.
Lendmire’s piece Short-Term Rental Cash-Out Refinance Requirements to Build an Addition or ADU covers the checklist side.
What Should You Gather Before You Apply?
A clean file shortens lender questions and helps your broker match you to the right program. Build the file around the property, not around your personal income. Gather these items:
- Platform statements and matching bank deposits covering the full hosting history
- Current insurance, tax, and any association dues information
- Your existing loan payoff details and the date you took title
- Proof of reserves, such as recent asset statements
- Entity documents if the property is held in an LLC, subject to lender program eligibility
- Permit and HOA information that shows short-term rental use is allowed
- A rough project budget and scope, so you can size the loan to the work
For the broader mechanics behind these steps, the complete DSCR loans guide explains how coverage, leverage, and eligibility fit together.
On the credit side, a 620 floor exists in parts of the network, most programs want around 660, and 700+ opens the strongest tiers. Short-term-rental programs expect a 640+ score. Every file is underwritten individually, and program terms change.
Frequently Asked Questions
Can I use a cash-out refinance to build an ADU or addition?
Often yes, if the existing property is reviewed on its own. A DSCR cash-out refinance is a business-purpose loan, and lenders generally do not control how proceeds are spent. The loan is sized on today’s value and income, so the planned space does not help the numbers until it is built.
Do I need hosting history to refinance a short-term rental?
Most short-term-rental programs expect about 12 months of hosting history. Statements from the platform that match your bank deposits are the usual proof. If your history is shorter, a program that allows a projection-based path may apply, subject to lender guidelines.
Will the ADU count as rental income on this loan?
No, not before it exists. Lenders qualify the loan on income the property already earns. After the unit is finished and operating, a later refinance may count its rent, depending on the program and how the appraiser classifies the property.
How much cash can I pull from a short-term rental?
Up to 70% LTV on short-term-rental collateral for a cash-out, minus your existing payoff and closing costs. Standard long-term rentals reach around 75%. Your actual figure depends on the appraisal, your credit, reserves, and coverage on the larger loan. These specifics are subject to lender guidelines and a full review of property, leverage, and credit.
Does the appraisal capture my Airbnb income?
Not usually. Appraisal forms document monthly market rent, not nightly short-term income. Your booking history or a projection supplies the short-term income figure, and the lender decides which evidence it accepts.
Next Steps
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 mortgage broker arranging DSCR financing through select lenders in its wholesale network across 41 markets, including Washington, D.C. You can reach the team at 828-256-2183 or request a quote.
Before you call, work out the project budget as a share of your property’s value. That one ratio tells you quickly whether a cash-out can carry the build or whether you need a different structure.
For how equity extraction works on an investment property, see Lendmire’s guide to cash-out refinance on an investment property.
About Lendmire
As a non-QM mortgage broker (NMLS# 2371349), Lendmire facilitates DSCR investor loans across 41 markets, including Washington, D.C. DSCR eligibility is generally reviewed around property-level rental income instead of personal income documentation, subject to lender guidelines, serving LLC-structured portfolios and self-employed borrowers who don’t fit conventional boxes. A two-time Scotsman Guide Top Mortgage Workplace (2025, 2026).
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References
2. AirDNA, How to Forecast Rental Income
3. Fannie Mae Selling Guide’s appraisal forms page
4. McKissock Learning, Form 1007 and Short-Term Rental Appraisals
5. Casita Coalition, Insight From the Appraisal Institute on Evaluating ADUs
6. Propel Studio, Five Ways to Finance an ADU
This article is part of Lendmire’s investment property cash-out refinance program — full qualification details, guidelines, and scenarios live on the program page.
Related reading: How to Show Reserves for a Short-Term Rental Cash-Out Refinance · How to Qualify and Apply for a Short-Term Rental Cash-Out Refinance With 740 Credit · How Lenders Underwrite a Short-Term Rental Cash-Out Refinance With a Low Appraisal
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
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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.