The Quick Read: A fixed DSCR refinance lends the lower of two numbers: the most your appraised value allows at the program’s leverage cap, and the most your rent can carry once the new fixed monthly payment, taxes, insurance, and association dues are counted. The old adjustable loan’s payment never enters the ratio. Its balance matters only because the new loan has to pay it off.
- The new loan is sized by value (a loan-to-value cap) and by rent (a coverage test). The smaller result wins.
- A cash-out refinance on a standard rental tops out around 75% LTV across most of the network, and about 6 months of seasoning is the common expectation.
- If the payoff plus closing costs exceeds the maximum loan, you bring cash to closing.
- Clearing 1.00 coverage is not the same as positive cash flow. Repairs, vacancy, and management sit outside the ratio.
- Program details vary by lender, credit profile, and property, and every file is underwritten individually.
Replacing an adjustable-rate mortgage on a rental sounds like a modification. It isn’t. It is a new loan that pays off the old one, and the new loan has to earn its own size. This guide walks through how, step by step.
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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.
Key Terms Defined
DSCR (debt service coverage ratio): the property’s monthly rent divided by its full monthly housing obligation. A result above 1.00 means rent exceeds the payment.
PITIA: principal, interest, taxes, insurance, and association dues. This is the payment the rent has to cover.
LTV (loan-to-value): the loan amount as a percentage of the appraised value. A 75% LTV loan is three-quarters of what the property appraises for. Each figure is subject to lender guidelines and a complete review of property type, leverage, and credit.
Rate-and-term refinance: a refinance that pays off the old loan and costs, with no meaningful cash back to you.
Cash-out refinance: a refinance where you receive cash after the old loan and costs are paid. Any cash back puts the loan in this category.
Seasoning: the waiting period a lender wants between buying or refinancing a property and the next cash-out.
Prepayment penalty: a fee some investor loans charge if you pay them off inside a set window.
What Does a Fixed DSCR Refinance Actually Do?
It replaces your adjustable loan with a brand-new loan that has a fixed payment and a fixed schedule. The lender underwrites the new loan from scratch. DSCR loans are designed for non-owner-occupied investment properties, and because they are business-purpose investor loans, they are reviewed differently from a standard owner-occupied mortgage. The file qualifies primarily on property-level rental income covering the payment, subject to lender guidelines.
That changes what matters about your old loan. Its payment, before or after a reset, does not feed the coverage ratio. The ratio is built on the new loan’s payment. Its balance, its payoff terms, and any penalty matter because they set how much the new loan must cover.
Picture an investor with a fourplex whose adjustable loan resets soon. The question is not “what will my payment become?” The question is “what will a fixed loan on this property, at today’s appraised value and today’s rent, support?” Those are different questions with different answers.
How the Loan Amount Gets Set: The Narrowest Gate Wins
Four gates sit between you and the new loan. The tightest one decides the amount.
1. The value gate. The appraised value times the program’s leverage cap gives the maximum loan. On a cash-out refinance of a standard rental, that cap tops out around 75% LTV across most of the network. On a rate-and-term refinance of an investment property, select programs can reach up to 85% LTV, with stronger credit and lower loan sizes generally needed to get there.
2. The rent gate. Rent must cover the new fixed payment at the program’s required ratio. This is the gate that surprises people.
3. The payoff gate. The new loan must cover the old balance plus closing costs and any prepayment penalty. If it can’t, you bring the difference.
4. The size gate. Standard programs run up to $3,000,000. Above $2,500,000, the network generally holds to 30-year fixed structures, and leverage tends to step down as balances climb.
Most investors focus on the value gate because it is easy to picture. In practice, rent is often the tighter limit on a fixed loan. A fully amortizing payment is usually heavier than the starting payment on an adjustable loan, so the same rent covers less.
The Rent Test, Step by Step
Here is how underwriting treats the rent side, in order.
Step 1: Pick the rent figure. The appraiser completes a rent schedule: Form 1007 for single-family homes and Form 1025 for two-to-four unit properties. Most programs use the lower of the signed lease and the appraiser’s market rent. A vacant unit uses market rent alone.
Step 2: Build the payment. Add principal and interest on the new fixed loan, property taxes, hazard insurance, and any association dues. Flood insurance joins the list where the property needs it.
Step 3: Divide. Rent over PITIA gives the coverage ratio.
Step 4: Compare to the program floor. A 1.00 ratio is where many select programs start. Stronger ratios often open better pricing and higher leverage. A separate select-lender path takes coverage below 1.00, with leverage and terms adjusted.
Step 5: Reverse it to find the ceiling. Divide rent by the required ratio to get the maximum monthly PITIA. Subtract taxes, insurance, and dues. What remains is the room for principal and interest. A payment factor, which depends on pricing and term on the day of the quote, converts that room into a loan amount. This is why no honest article can print a universal dollar ceiling.
One more point deserves repeating. 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 expenses sit outside the calculation.
Worked Example: Same Property, ARM Versus Fixed
These figures are modeled assumptions, not market data. They are expressed as ratios and percentages on purpose.
Say you own a duplex with an adjustable loan. Rent covers the adjustable loan’s starting payment at about 1.30x. That looks comfortable.
Now run the same rent against a new fixed loan with the same balance. The fixed payment is heavier, so coverage lands near 1.10x. It still clears a 1.00 floor, but with less cushion. The rent did not change. The payment structure did.
Next, test the payoff gate. Assume the old balance equals about 60% of appraised value, and closing costs plus a prepayment penalty add about 3% of value. On a cash-out at 75% LTV, the maximum loan covers the payoff and leaves roughly 12% of appraised value as net cash, before any other adjustments. Leverage, reserves, and pricing vary by lender and program; the final terms follow the full file review.
Now tighten the rent. Suppose the lease sits well below market, and coverage on the fixed payment comes in near 0.95x at the requested amount. The loan shrinks. A lower leverage tier or a longer amortization may bring coverage back to the program floor. Interest-only periods and 40-year amortization are available through select lenders in the network. Lendmire’s piece How Much a Single-Family 40-Year DSCR Loan Lends on a Rental covers that structure in detail.
Here is a thinking-out-loud point. A smaller loan can look like a fix, but taxes and insurance don’t shrink with the balance. The cushion from trimming leverage is thinner than the percentage suggests.
What Moves the Number
| Lever | Effect on the loan | Direction |
|---|---|---|
| Higher appraised value | Raises the value ceiling | Up |
| Higher market rent | Raises the rent ceiling | Up |
| Longer amortization | Lowers payment, lifts coverage | Up |
| Interest-only period | Lowers payment during that period | Up, with tradeoffs |
| Higher required ratio | Cuts the rent ceiling | Down |
| Higher taxes or insurance | Cuts room for principal | Down |
| Stronger credit | Can unlock higher leverage tiers | Up |
On credit, a 620 floor exists in parts of the network, most programs want around 660, and 700 and above unlocks the strongest leverage tiers. A larger down payment on a purchase can lower the payment and lift coverage, but it never erases leverage caps, credit floors, reserve rules, or property eligibility. The same logic applies to a refinance. Paying down the balance helps both gates, but each gate still has its own rules.
Reserves vary by lender, leverage, loan size, and transaction type. Commonly they run around 6 months of PITIA. Conservative rate-and-term files at modest leverage under $1,500,000 can see reserves waived, and loans above that size typically step up to about 9 months.
Does the New Loan Cover Your Payoff?
This is the gate investors skip. The maximum fixed loan depends on appraised value and rent. It does not depend on what you owe.
If payoff plus costs sits below the maximum loan, you close with room to spare, and on a cash-out you receive the difference. If payoff plus costs exceeds the maximum loan, you bring cash to closing. Lendmire’s piece How Much a Fixed DSCR Loan Lends to Pay Off an ARM walks through that shortfall in more depth.
Add every line to the payoff side:
- The old loan’s principal balance and accrued interest.
- Closing costs on the new loan.
- Any prepayment penalty on the old note.
- Escrow or reserve requirements the new lender sets. Terms vary by lender guidelines, property type, leverage, credit profile, and full file review.
The prepayment line deserves a closer look. Conventional consumer ARMs usually carry no penalty, while investor and DSCR adjustable loans often do. If your old loan is itself a DSCR loan, the penalty is a payoff line item that shrinks your net check, and the new loan starts its own penalty clock.
When a rent-limited file falls short, you have options:
- Raise rent where lease terms allow.
- Pay the balance down before the refinance.
- Choose rate-and-term instead of cash-out.
- Look at a longer amortization or an interest-only structure through select lenders.
- Sell the property.
- Hold the adjustable loan and manage the reset.
A reset alone is a reason to refinance. It is not a reason to take cash out.
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.
Rate-and-Term Versus Cash-Out
| Factor | Rate-and-term | Cash-out |
|---|---|---|
| Cash back to you | Minimal | Yes |
| Leverage ceiling | Up to 85% on select programs | About 75% on standard rentals |
| Seasoning | Lighter | About 6 months common |
| Rent test | Same coverage test | Same coverage test |
| Main risk | Thin coverage after payoff | Whole balance repriced |
Any cash back to you puts the loan in the cash-out column. A free-and-clear rental is automatically a cash-out, because the payoff is zero.
Cash-out has a cost people overlook. The last slice of cash reprices the whole balance, not just the cash you take. A property can pass the coverage test and still leave thin real cash flow after repairs and vacancy.
Where the General Rule Breaks
A below-market lease caps the ratio. The lower-of rule means the lease governs. A lease about 25% below market might land near 0.90x, and one about 15% below might land near 1.02x. These are illustrations only.
An above-market lease gets no credit. If the lease exceeds the appraiser’s market rent, the premium is ignored. Market rent becomes the number.
Short-term rentals run on different rules. For a standard rental, a cash-out tops out around 75% LTV. For short-term-rental collateral, a cash-out tops out at 70% and a refinance around 70%. Expect a 640 or higher credit score and about 12 months of hosting history. Coverage floors are 1.00 on a refinance. Exact terms depend on the lender’s guidelines, property type, leverage, and a full review of the borrower’s file.
Leaving a DSCR adjustable loan can lower your ratio. Many adjustable DSCR structures qualify on the initial payment. A fully amortizing fixed payment is typically heavier, so the same rent covers less after the swap.
Large balances pull leverage down. Past $2,500,000, expect 30-year fixed structures and tighter leverage.
Some property types are not offered. Manufactured homes (single- and double-wide), log homes, and barndominiums fall outside the network’s DSCR programs.
Coverage below 1.00 is a different path. It is available through select lenders in the network, with leverage and terms adjusted. It is not the same program with a lower floor.
Read the Old ARM Note First
Before any appraisal is ordered, pull the old note. Four things drive timing and payoff: the reset or maturity date, the index, the margin, and the prepayment clause.
The CFPB’s explanation of ARM index and margin describes the reset mechanics: once the introductory period ends, the index plus the margin becomes the new rate, subject to caps. The CFPB’s consumer handbook on adjustable-rate mortgages adds that margin plus index is the fully indexed rate, and that discounted starter rates are common.
Both pages are consumer-ARM explanations. Your note may carry investor-specific terms, so read it line by line. The refinance has to close before the reset, so start early enough to leave room for the appraisal and the payoff statement.
Decision Checklist
Run these questions in order:
1. Do you know the old note’s reset date, caps, and prepayment clause?
2. Does the appraised value times the leverage cap exceed payoff plus costs?
3. Does rent, using the lower of lease and market rent, cover the fixed payment at the program floor?
4. Do you meet the credit tier and reserve expectations for the loan size?
5. Is the property an eligible type?
6. Will the lower payment certainty be worth the closing costs and a new prepayment window?
If you answer no to the second or third question, adjust the plan before you apply. The complete DSCR loans guide explains the basics behind each gate if any of this is new.
Frequently Asked Questions
Does my adjustable loan’s payment count toward the DSCR?
No. Coverage is measured on the new fixed loan’s payment. The old payment, before or after a reset, never enters the ratio. The old loan matters only through its payoff amount and any penalty.
What if my lease is higher than market rent?
The premium is ignored. A lease above market does not raise your loan, and a lease below market lowers it.
Is replacing a rental ARM a rate-and-term or a cash-out?
It depends on the cash you receive. A refinance that only pays off the old loan and costs is rate-and-term. Any meaningful cash back to you makes it a cash-out, with the lower leverage ceiling and seasoning expectations that come with it.
What happens if the new loan can’t cover my payoff?
You bring the difference to closing. Alternatives include paying the balance down first, raising rent where the lease allows, choosing a longer amortization through a select lender, selling, or holding the adjustable loan and managing the reset.
Does clearing 1.00 mean the property cash flows?
No. The ratio compares rent to PITIA only. Repairs, vacancy, management, utilities, and capital expenses sit outside it. A property can pass the test and still run thin.
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 mortgage broker arranging DSCR investor loans through select lenders in its wholesale network, across 41 markets, including Washington, D.C. Qualification is subject to lender guidelines and is not a commitment to lend.
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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Informational only. Not a Loan Estimate, approval, or commitment to lend. Program availability and eligibility are subject to lender guidelines, credit approval, property review, and underwriting.
References
1. CFPB’s explanation of ARM index and margin
2. CFPB: Consumer Handbook on Adjustable-Rate Mortgages
This article is part of Lendmire’s DSCR loan program — full qualification details, guidelines, and scenarios live on the program page.
Related reading: How Much a DSCR Loan Lends When an LLC Refinances Rentals · How Much a Blanket DSCR Loan Lends on Rentals With Underpriced Leases · How Much a DSCR Loan Lends to Buy Out a Spouse on a Rental
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
- Mortgage Loan Originator · NMLS# 1129696 · Verify on NMLS Consumer Access
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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.