The Quick Read: A conventional cash-out refinance caps total debt across every lien on the property, so a second mortgage either gets paid off from the new loan’s proceeds or stays in place and uses up the same leverage room, and either way it shrinks the cash you receive. The cap measures the whole debt stack against appraised value. It does not measure the new first loan alone.
- The cap covers all liens combined, so an older second mortgage can use up most of the available equity.
- Conventional guidelines cap a cash-out refinance of a one-unit investment property at 75%.
- Paying off a second that was not used to buy the property generally makes the loan a cash-out, even if no check is written to you.
- A second lien left in place usually needs a subordination agreement, and the junior lender can say no.
- A DSCR cash-out reads the rent against the payment instead of reading your personal income, which changes who this works for.
This piece is about the money mechanics. It is not about buying a second home with cash-out proceeds. Here, “second mortgage” means a junior lien on the property you already own, such as a home equity loan or a HELOC.
How large a line the equity supports.
An equity line is sized by combined loan-to-value, occupancy, and credit — not by rental coverage. Switch the occupancy or the credit band and the ceiling moves with it.
Investment-property lines require a 700 minimum credit score; second-home lines start at a 640 minimum and primary-residence lines at 600, and the combined-LTV ceiling steps down as the credit band drops on primary-residence and second-home lines and holds on investment-property lines; the line cap steps down on primary-residence lines and holds at every tier on investment-property and second-home lines.
A debt-to-income ratio above 45% requires 680+ credit. Profiles under 640 are limited to single-family homes. At least 75% of the approved line is drawn at closing. Ceilings, floors, and caps update from Lendmire’s centralized guideline source.
Line estimate
Illustrative estimate only — not a quote, Loan Estimate, approval, or commitment to lend. The rate is an editable assumption; equity-line pricing is variable through both the draw and repayment periods and never converts to fixed. Occupancy and credit drive the ceiling together: an investment property tops out at 70% combined LTV (minimum credit 700, line cap $500,000); a second home tops out at 90% combined LTV (minimum credit 640, line cap $500,000), with the ceiling stepping down as the credit band drops (the cap holds at every tier); a primary residence tops out at 90% combined LTV (minimum credit 600), and its $750,000 maximum line is available only at 75% combined LTV or below with a 700-or-better credit profile (720 on the longer-runway program) and a full appraisal. Lines above $500,000 require a full appraisal. Credit, debt-to-income, property type, and full underwriting review all affect the final line.
Key Terms Defined
CLTV (combined loan-to-value): The total of all loans secured by the property, divided by its appraised value.
HCLTV (home equity combined loan-to-value): The same ratio, but a HELOC is counted at its full credit limit, not just the drawn balance.
Subordination agreement: A signed agreement in which a junior lender agrees to stay behind a new first loan.
Purchase-money second: A second mortgage taken out at the time of purchase to help buy the property, such as the 10% piece of an 80-10-10 piggyback.
Seasoning: The minimum time a loan or ownership has been in place before a refinance is allowed.
PITIA: Principal, interest, taxes, insurance and any association dues. This is the payment that DSCR compares rent against.
What a Cash-Out Refinance Allows With a Second Mortgage in Place
The ceiling applies to all liens together. Picture a rental worth 100 units of value. If the cap is 75%, total debt after closing cannot exceed 75 units. Every dollar of second-lien balance that stays in the stack takes room away from the new first loan.
Investors often get this wrong. They compare the new first loan to the old first loan and assume the difference is cash. Underwriting does not work that way. It starts at the cap and subtracts what is already owed.
Fannie Mae’s Eligibility Matrix states its leverage limit as LTV, CLTV and HCLTV in one column. That wording shows the cap spans the first mortgage, the combined loans, and a HELOC counted at its full limit. The matrix shows 75% for a cash-out refinance on a one-unit investment property. Read the 2–4 unit investment row directly off the matrix, because that row is not reliable to quote from memory.
These agency figures serve only as contrast. DSCR loans are not agency products, and the network’s DSCR programs set their own caps, covered further down.
The Sizing Formula, Step by Step
The arithmetic is short. Run it before you apply.
1. Multiply the cap by the appraised value to get the maximum total debt.
2. Subtract the payoff on the existing first mortgage.
3. Subtract the second-lien payoff. If the second stays in place, subtract its balance, or its full credit limit if it is a HELOC.
4. Subtract closing costs, points and prepaids that are financed.
5. What is left is the cash to the borrower.
Three inputs drive the answer. The first is appraised value, so a light appraisal hits harder than almost any other variable. The second is the total of what you owe now. The third is the occupancy and unit-count tier, because the cap drops for investment property.
Appraisal access is the quiet friction point on these files. A tenant who will not allow entry, or a unit with open repairs, can delay the valuation or lower it. Settle both before the order goes in.
Same Home, Three Outcomes
Use modeled assumptions, not market data. The home appraises at 100% of value. The existing first mortgage is 45% of value. The second is 20% of value. Financed closing costs are 2% of value. The cap is 75%, the conventional figure for cash-out on a one-unit investment property.
| Scenario | New first loan | Second lien | Cash to borrower |
|---|---|---|---|
| Pay off the second | Up to 75% | Retired | About 8% of value |
| Keep a 20% second, subordinated | Up to 55% | 20% stays | About 8% of value |
| Keep a HELOC, 20% drawn on a 30% line | Up to 45% | Stays | None; costs not covered |
The first two rows surprise people. Net cash is the same, because the second counts against the cap either way. What changes is the structure. In the first row, you end with one loan, one payment and one servicer. In the second, you end with two loans and two payments, and you depend on the junior lender’s consent.
The third row is the trap. A HELOC is generally tested at its full limit, so an unused line still eats cap room. The new first loan tops out at roughly the old first-mortgage payoff. Nothing is left for costs or cash. Closing the line at payoff, or reducing its limit, is the usual fix.
Does Paying Off the Second Count as Cash-Out?
Usually yes. Under conventional cash-out rules, a cash-out refinance can pay off subordinate liens of any age, and the loan is still classed as cash-out. The same section requires the first mortgage being paid off to be at least 12 months old.
The label follows what the old debt paid for. A second used to buy the property can fall into a narrower exception, and settlement records prove it. A home equity loan or HELOC drawn later for renovations, a car or an investment generally cannot. That is why a borrower who takes no cash out can still land in the cash-out tier and under the cash-out cap.
A free-and-clear property works the same way. A new loan on a property with no lien is also treated as cash-out.
Keeping the Second: How Subordination Works
When a refinance retires the old first loan, an untouched second would move up to first position. The new lender will not accept that. It typically requires the second-lien holder to sign a subordination agreement and stay junior, as legal-education publisher Lawyers.com explains for refinance transactions.
The junior lender has no duty to agree. Wikipedia’s overview of subordination says the new lender will not refinance the first loan without it. Three things follow in practice.
- Ask the second-lien holder early, before the appraisal is ordered.
- Read the second-mortgage note, because some include a clause that already commits the junior lender to stay junior.
- If the holder refuses, paying the second off from proceeds sidesteps the problem, at the cost of cash.
Where the General Rule Breaks
Purchase-money seconds. The piggyback second from an 80-10-10 purchase can be treated differently from a later home equity loan. Whether a given lender gives that treatment is lender-specific, and the settlement statement from the purchase is the evidence. Have it ready.
A HELOC at zero balance. A zero balance does not remove the lien. The line has to be formally closed and the lien released. Title will find an open line, and this is a common reason a clean-looking file stalls at clearing title.
The 80% claim. Some lenders will say they allow up to 80% on a rental cash-out. That is a market-wide claim and not a conventional rule you can count on. It varies by lender and is not how the one-unit investment tier above is written.
Seasoning on recent purchases. A property bought recently with cash or with a short-term loan can be hit by seasoning rules. Delayed-financing exceptions exist for recent cash purchases, but they carry their own limits, including restrictions on which liens can be paid off. Check the current text before you plan around one.
Mixed unit counts. A fourplex and a single-family rental sit in different tiers. Do not carry one cap number across both.
What Shrinks Your Cash Beyond the Cap
The cap is the ceiling, not the answer. Four things pull the actual number down.
- Appraisal. A lower value cuts the cap and the cash with it.
- Financed costs. Closing costs, points and prepaids come out of proceeds before you see anything.
- Existing debt. A larger second leaves less room under the cap.
- Qualification. The lender can approve less than the cap allows if credit or debt-to-income does not support it.
The last one is the real limit for many investors. Conventional underwriting reads the borrower, not the rent. It looks at personal income and debt-to-income ratios, and every financed property adds to the debt side. An investor with several rentals can have plenty of equity and still run out of room on the income test.
The Investor Decision: Reset the First or Add Money on Top
The choice depends on the first mortgage. A cash-out refinance reprices every dollar you owe. A second lien reprices only the new money. If the existing first loan is a good one, replacing it to reach a little equity usually costs more than it returns. If the first loan is poor, the reset can make sense and the second gets absorbed in the same closing.
Run the formula both ways. Look at cash received, number of payments, and what happens to the first-loan term. Then ask whether the cash is worth giving up the old first mortgage. Lendmire’s piece Is a Conventional Cash-Out Refinance Better Than a Second Mortgage? covers that side-by-side in more depth.
Two Alternatives Brokers See Often
A standalone home equity line. Across Lendmire’s wholesale network, select partners offer a standalone line in first or second lien position, so an investor can keep the existing first loan. On an investment property, the ceiling is 70% CLTV, and the maximum line is $500,000. Credit typically needs to be 700 or higher, and title must be held by the individual or a revocable living trust. Investment lines run a 5-year draw and 25-year repayment structure, and pricing floats rather than converting to fixed. This is available in the states where Lendmire offers full-service lines, which is a narrower set than its DSCR footprint, and every figure is subject to lender guidelines and full file review.
A DSCR cash-out refinance. Lendmire arranges DSCR investor loans through select lenders across 41 markets, including Washington, D.C. A DSCR cash-out reads the property’s rent against the full PITIA instead of reading personal debt-to-income. Those loans qualify primarily on property-level rental income covering the payment, subject to lender guidelines. Lendmire’s guide, how to cash out refinance a rental property without showing income, walks through how the file is built.
Typical DSCR cash-out parameters across the network run as follows.
- Leverage tops out around 75% LTV on standard long-term rentals and 70% on short-term-rental collateral.
- About 6 months of ownership seasoning is the common expectation.
- Most programs want a credit score around 660. A 620 floor exists in parts of the network, and 700 or higher opens the strongest leverage tiers.
- Coverage of 1.00 is where many select programs start. A separate select-lender path takes coverage below 1.00, with leverage and terms adjusted.
- Reserves vary by lender, leverage, loan size and transaction type. Around 6 months of PITIA is common.
- Standard loan sizes run up to $3,000,000 on standard programs (smaller balances available through select lenders).
How an existing second lien is handled is set by each program’s guidelines and reviewed file by file. Vesting is often possible in an LLC, subject to lender program eligibility. For the base mechanics, see the complete DSCR loans guide.
One caution applies. Clearing 1.00 on DSCR is not the same as positive cash flow. The ratio compares rent to PITIA only. Repairs, vacancy, management, utilities and capital expenses sit outside it. Manufactured homes, log homes and barndominiums are not offered on the DSCR programs.
Tax treatment can depend on how the funds are used and how the property is held; investors should keep clear records and speak with a qualified tax professional before relying on any deduction.
Before You Apply: A Short Checklist
1. Pull a payoff statement for the first mortgage and one for the second.
2. For a HELOC, get the credit limit as well as the balance.
3. Find out when the second was drawn and what it paid for. Keep the purchase settlement statement if a purchase-money second is involved.
4. Ask the junior lender whether it will subordinate, and get that answer in writing.
5. Run the sizing formula at the cap for your unit count, using a conservative value.
6. Compare the result against a DSCR cash-out and a standalone line before choosing.
Putting It Together
A second mortgage does not cancel the equity in a rental. It uses some of the same room under the cap, so the cash you receive is smaller than the gap between the old and new first loans. If you are weighing a home equity line against a cash-out refinance and want to see how the numbers work, Lendmire can help you compare options based on the property, the equity available, credit profile, combined leverage and your goals. Reach the team at 828-256-2183. Lendmire is a broker and does not lend directly, and every outcome is subject to lender guidelines and credit approval.
Frequently Asked Questions
Does a second mortgage reduce how much cash I get from a cash-out refinance?
Yes, it does, whether you pay it off or keep it. The cap covers all liens combined, so the second-lien balance comes out of the same room the new first loan would use. Paying it off removes it from the stack but uses proceeds to do so. Keeping it means the new first loan is smaller. In both cases, the net cash is lower than the equity alone would suggest.
Can I refinance only the first mortgage and leave the second in place?
Often yes, but the second-lien holder has to agree to stay junior. The new lender usually requires a signed subordination agreement. If the holder refuses, the usual fix is to pay the second off from proceeds. Either way, the second still counts against the combined cap.
If I take no cash out, is it still a cash-out refinance?
It can be. If the second mortgage was not used to buy the property, paying it off generally puts the loan in the cash-out tier. The classification depends on what the old debt paid for, not on whether you receive a check. Purchase-money seconds can be treated differently, and the purchase settlement statement is the proof.
What happens to an unused HELOC when I refinance?
It can still count against the cap at its full credit limit, even with a zero balance. The lien also stays until the line is formally closed and released. Closing the line at payoff is the usual way to avoid losing cap room.
How is a DSCR cash-out different when I have a second lien?
A DSCR cash-out tests the property’s rent against its full payment rather than your personal debt-to-income. Across the network, leverage tops out around 75% LTV on standard rentals, and about 6 months of seasoning is typical. The treatment of the second lien is set by each program’s guidelines and reviewed per file. These specifics are subject to lender guidelines and a full review of property, leverage, and credit.
For the mechanics of pulling equity out of a rental property, see Lendmire’s guide to cash-out refinance on an investment property.
About Lendmire
Lendmire — NMLS# 2371349 — is a mortgage broker that arranges home equity lines of credit in its 16 full-service states through wholesale lenders, on primary residences, second homes and investment properties. Every line is subject to the lender’s guidelines and full underwriting. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.
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References
1. Fannie Mae Eligibility Matrix
2. Fannie Mae Selling Guide: Cash-Out Refinance Transactions
3. Lawyers.com: What’s a Subordination Agreement in a Home Loan Refinance Transaction
4. Wikipedia: Subordination agreement
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: VA Cash-Out vs DSCR Cash-Out for an Owner With a Second Lien · Multi-Family Cash-Out Refinance for Investors Who Raised NOI · Investment Property HELOC for Owners Weighing a Cash-Out 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.