The Quick Read: A cash-out refinance with an interest-only feature must pass two separate tests, rental coverage and equity, and the interest-only feature can help only the coverage test, and only when the program measures coverage on the interest-only payment. Leverage, credit, reserves and seasoning stay where they were. Select lenders in Lendmire’s wholesale network offer interest-only periods, but every file is underwritten individually.
- Leverage: cash-out tops out around 75% LTV on a standard long-term rental, and interest-only does not raise it.
- Coverage: 1.00 is where select programs start, and some lenders test the interest-only payment while others test the fully amortizing one.
- Seasoning: expect about 6 months of ownership, measured from title recording.
- Credit and reserves: a 620 floor exists in parts of the network, and about 6 months of PITIA in reserves is common.
- Exit: the payment steps up when the interest-only window closes, so stress-test that payment before you commit. The exact numbers vary by lender and program and follow a full review of property, leverage, and credit.
Key Terms Defined
DSCR (debt service coverage ratio) is the property’s monthly rent divided by its monthly housing payment. The loan is reviewed primarily on property-level rental income covering that payment, subject to lender guidelines.
PITIA is principal, interest, taxes, insurance and association dues. It is the payment most programs divide into rent.
ITIA is the same list without principal. It is the payment some programs use during the interest-only period.
Interest-only period is a stretch at the start of the loan when you pay interest and no principal. The balance stays flat unless you pay extra.
Seasoning is the waiting period between buying a property and cashing out of it.
Cash-out refinance is a new loan that pays off the old one and hands you the difference. LTV (loan-to-value) is the loan amount as a percentage of appraised value.
DSCR Cash-Out Calculator
Run the cash-out numbers in your market
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.
What Are the Two Tests Every Cash-Out File Must Pass?
Interest-only affects the coverage test, which compares the property’s rent to its debt payment, but it leaves the equity test, which is the leverage cap, alone.
The equity test is the leverage cap. On a standard long-term rental, cash-out generally tops out at 75% LTV across the network. On short-term-rental collateral, cash-out is typically held to 70% LTV. Interest-only does not move either number, so it does not add proceeds.
The coverage test asks whether rent covers the payment the lender chooses to test. That choice is where interest-only matters. The complete DSCR loans guide covers the basics of that ratio. The sections below cover how the interest-only feature changes the picture.
The strongest files clear both tests. A large equity cushion does not rescue thin rent, and strong rent does not lift a leverage cap.
Which Payment Does the Lender Test?
Programs split into two camps. Some test coverage on the interest-only payment, so rent divides by ITIA. Others test the fully amortizing payment even though you pay interest-only, so rent divides by PITIA and the feature does nothing for the ratio. Across the network, both approaches exist.
The formula itself is simple. Rent divided by the tested payment gives the ratio. Corporate Finance Institute notes that debt service formulas vary by lender and context. That is why you ask which payment a program tests before you compare offers.
Here is one property run four ways. These are illustrative modeled assumptions, not market data.
| Scenario | Payment tested | Illustrative coverage |
|---|---|---|
| Fully amortizing | PITIA | About 1.05x |
| IO, tested on IO payment | ITIA | About 1.25x |
| IO, tested on amortized payment | PITIA | About 1.05x |
| After the IO window | Higher amortizing payment | About 0.95x |
The first three rows show the same rent and the same property. Only the tested payment changed. The last row shows what the file looks like once principal returns over a shorter remaining term.
Interest-only also does not relax credit or reserve rules. Some programs add a higher credit floor for the feature, so confirm that with the specific program.
Cash-Out Requirements at a Glance
These figures are typical ranges from select lenders in the network, subject to lender guidelines.
| Factor | Standard cash-out | With interest-only |
|---|---|---|
| Max LTV | 75% (standard rental) | Same cap |
| Coverage | 1.00 where select programs start | Tested on ITIA or PITIA |
| Credit | 620 floor, most want about 660 | May run higher |
| Reserves | About 6 months PITIA | Same |
| Seasoning | About 6 months | Same |
| Loan size | Up to $3,000,000 | Check by program |
Credit at 700 or above unlocks the strongest leverage tiers. Reserves step up to about 9 months on loans above $1,500,000. Above $2,500,000, the network generally holds to 30-year fixed structures, so interest-only is typically off the table at that size.
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.
For a fuller walkthrough of cash-out qualification, see Lendmire’s piece on what you need to qualify for a DSCR cash-out refinance.
How Much Cash Can You Actually Take?
You take the new loan, minus your payoff, minus closing costs, minus any funds a lender requires you to hold back. That is the whole formula, and the 75% cap sets the ceiling on the first number.
Say a rental appraises at a given value and your existing loan sits at half of that value. A 75% cash-out loan leaves roughly a quarter of the value as gross proceeds, before costs and reserves. Interest-only does not change that arithmetic. Final terms depend on the lender’s guidelines, the property type, and the borrower’s complete credit picture.
What interest-only can change is whether the loan clears the coverage test at that size. A bigger loan means a bigger payment, and a bigger payment means lower coverage. If the ratio fails, the loan amount gets resized downward, and your cash shrinks with it.
Whether cash-out proceeds can count toward reserves varies by program. Ask before you plan around it.
How Does Underwriting Treat the File, Step by Step?
1. The transaction is classified. If the new loan returns more than a small amount of cash, it is cash-out and the 75% cap applies.
2. The property is appraised. The appraiser sets value and, on one-to-four-unit rentals, typically provides a market rent estimate.
3. Rent is determined. Depending on the program, rent used for lender review comes from that rent estimate or the lease. Short-term-rental programs treat rent differently and usually want about 12 months of hosting history.
4. The tested payment is chosen. This is the ITIA-or-PITIA decision from above.
5. Coverage is compared to the floor. On a short-term-rental refinance, that floor is typically 1.00 as well.
6. Credit, reserves and seasoning are checked. These apply the same way with or without interest-only.
7. The file is sized. The loan is the lesser of what the leverage cap and the coverage test allow.
Clearing 1.00 is not the same as positive cash flow. DSCR compares rent to PITIA only. Repairs, vacancy, management, utilities and capital expenses sit outside the calculation.
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.
What Happens When the Interest-Only Period Ends?
The payment rises. The CFPB explains that an interest-only loan keeps the balance flat during the interest-only period. When it ends, you pay off the loan, refinance, or begin higher payments that cover principal too.
Your remaining term shrinks, so the amortizing payment is larger than it would have been on day one.
So run the post-window payment against today’s rent before you sign. If the ratio still clears, interest-only is a cash-flow tool. If it fails, you are betting on rent growth or a future refinance.
Where the General Rule Breaks
Interest-only tested on the amortized payment. The ratio gets no help, though your monthly cash flow still improves. This can catch borrowers off guard.
Delayed financing for cash buyers. If you paid cash and refinance soon after, some programs size the loan near your documented cost instead of making you wait out seasoning. The cost basis, not the after-repair value, is the usual limit. For contrast only, Fannie Mae’s Selling Guide describes a delayed financing exception for cash buyers in conventional lending. It does not govern DSCR files, which follow each program’s own matrix.
BRRRR with a rehab. Some programs shorten seasoning when the rehab is documented. Others hold to the full waiting period. This varies widely across lenders, so ask before you plan a timeline around it.
Short-term rentals. Cash-out runs around 70% LTV on short-term-rental collateral, versus 75% on a standard long-term rental. 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. Each figure is subject to lender guidelines and a complete review of property type, leverage, and credit.
Several interest-only loans at once. Track the calendar. Multiple windows expiring together stack up payment increases in the same period.
Property types. Manufactured homes, log homes and barndominiums are not offered in the network’s DSCR programs, with or without interest-only.
Loan size. Above $2,500,000, expect 30-year fixed structures only.
Is Interest-Only the Right Choice?
| Situation | Fit |
|---|---|
| Ratio fails on amortizing, clears on IO, and program tests ITIA | Strong |
| Ratio already clears on amortizing | Weak: adds risk, no qualifying benefit |
| Program tests amortized payment | Cash-flow tool only |
| Long hold, no exit plan | Weak |
| Planned refinance or sale within the IO window | Reasonable |
If the property already clears coverage on the amortizing payment, interest-only gives up principal paydown and adds payment shock for no qualifying gain. If it only clears on interest-only, treat that as a thin deal and stress-test the exit.
Why Files Get Declined or Resized
- Appraised rent comes in below the lease.
- Appraised value comes in short, which cuts the 75% cap.
- Coverage was calculated on the wrong payment.
- Seasoning is not met, measured from title recording.
- Credit lands below the tier needed for the leverage requested.
- Reserves fall short once closing costs are subtracted.
Gather before you apply: the current mortgage statement, the lease or rental history, an insurance declaration, and your entity documents if the property is titled in an LLC (subject to lender program eligibility). Bring proof of reserves as well.
Frequently Asked Questions
Does an interest-only period let me take out more cash?
No. The cash-out cap, about 75% LTV on a standard long-term rental, stays the same. Interest-only can only help the loan clear the coverage test at that size, which matters when a bigger loan would otherwise fail. Leverage, reserves, and pricing vary by lender and program; the final terms follow the full file review.
How do I find out which payment a lender tests?
Ask directly whether coverage is calculated on the interest-only payment or the fully amortizing one. Programs differ, and the answer decides whether the feature helps your ratio. A broker who sees many lenders’ guidelines can compare them side by side.
How long must I own the property before a cash-out?
Expect about 6 months of ownership, measured from title recording. Cash buyers may have a delayed financing path that sizes the loan near documented cost, and rehab-related exceptions exist with some lenders.
Does interest-only change credit or reserve requirements?
Not directly. Reserves of about 6 months PITIA are common, and credit tiers start around a 620 floor in parts of the network. Some programs attach a higher credit requirement to the interest-only feature, so check by program. Terms vary by lender guidelines, property type, leverage, credit profile, and full file review.
What if the numbers fail once the interest-only period ends?
You have three options: pay down the balance, refinance, or absorb the higher payment. Coverage below 1.00 is available through select lenders in the network, with leverage and terms adjusted, but plan the exit before you close.
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 arranging financing through select lenders in its wholesale network across 41 markets, including Washington, D.C. The site’s illustrative calculator gives a rough estimate of coverage before you talk to anyone, and nothing here is a commitment to lend.
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 DSCR and non-QM mortgage broker, Lendmire — NMLS# 2371349 — connects investors with wholesale lending channels across 41 markets, including Washington, D.C. The property’s rental income, not the borrower’s tax returns, is central to lender review, which works for self-employed operators and portfolios beyond four financed properties. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.
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References
1. Corporate Finance Institute: Debt Service Coverage Ratio
2. CFPB: What Is an Interest Only Loan
3. Fannie Mae Selling Guide B2-1.3-03: Cash Out Refinance Transactions
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: Can a DSCR Cash-Out Refinance Clear a First and Second Mortgage? · Interest-Only vs Fully Amortizing DSCR Cash-Out for Passing the Floor · How to Maximize the Cash You Take Out on a DSCR Refinance
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
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Required disclosures. Lendmire (NMLS# 2371349) operates as a licensed mortgage broker, not a direct lender or depository. The discussion in this article is general in nature and should not be relied upon as financial, legal, or tax advice — every investment scenario is unique and should be reviewed by a qualified professional. Any loan inquiry is subject to lender underwriting, and this article is not a commitment to lend or a guarantee of approval. Mortgage rates, loan terms, and program guidelines vary by borrower, property, and state, and may change without notice. Equal Housing Opportunity. Verify licensure at NMLS Consumer Access.