The Quick Read: The line is a borrower-qualified debt, so it never enters the DSCR ratio of the rental you buy, but its interest-only payment, tested at the maximum draw, becomes the main debt in your personal DTI, and whether a purchase lender counts it depends on whether that loan uses personal DTI at all.
- A paid-off home removes the first-mortgage payment from your debts. It does not remove the new line’s payment.
- On an investment-property line, the network ceiling is 70% CLTV with a 700 minimum credit profile and a $500,000 maximum line.
- DTI tops out at 50% on the line itself, tested on the interest-only payment at the maximum draw.
- A DSCR purchase is reviewed primarily on property-level rental income covering the payment, subject to lender guidelines, so personal DTI is not the test there.
- A conventional or income-based purchase loan will add the line’s payment to your debts.
Lendmire is a mortgage broker. It arranges these loans through select lenders in its wholesale network and never lends directly. Every figure below is subject to lender guidelines and full file review, and none of it is a commitment to lend.
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
DTI (debt-to-income ratio): Your monthly debt payments divided by your gross monthly income. Lenders use it to judge whether you can carry another payment.
HELOC: A home equity line of credit. It is a revolving line secured by a property, with a draw period and then a repayment period.
First lien: The first-position claim on a property. On a home with no mortgage, a new line is usually the only lien, so it sits first.
CLTV (combined loan-to-value): All loans secured by the property, added together and divided by its value.
DSCR (debt service coverage ratio): Monthly rent divided by the property’s PITIA. PITIA is principal, interest, taxes, insurance, and any HOA dues.
Qualifying payment: The payment a lender uses in its math. It can differ from what you actually pay in month one.
What a Paid-Off Home Changes (and What It Doesn’t)
A paid-off home removes one debt from your DTI: the first-mortgage payment. That helps. It does not make the new line free, because the line’s own payment replaces it as your biggest obligation.
Here is what shifts when the home has no mortgage:
- Lien stack: The line is typically the only lien and sits in first position.
- Equity math: With no balance owed, the full available equity is in play, up to the program’s CLTV ceiling and line cap.
- Housing costs: Taxes, insurance, and any HOA dues on the home still count as monthly obligations.
Here is what does not shift. The credit floor stays. The DTI test stays. The line cap stays. Paid-off status helps the equity side only.
Think of a first-lien line on a free-and-clear home as a cash-out refinance in line-of-credit form. You tap equity without a mortgage payment being reset, but the line is underwritten to you, not to the rental you plan to buy.
Two Loans, Two Tests
The HELOC and the rental loan are separate approvals. Each lender reads your file through its own rules.
| Factor | The HELOC | The DSCR purchase |
|---|---|---|
| What is underwritten | You: credit, DTI, equity | The property’s rent and leverage |
| Personal DTI | Tested, 50% max | Generally not the test |
| Payment used | Interest-only at max draw | Full PITIA of the rental |
| Collateral | Your home | The rental |
Most investors blur these together. That is where the confusion starts. A DSCR lender does not ask what your DTI is. The HELOC lender does, because it is the borrower-based loan in the chain.
How the Qualifying Payment Gets Counted
Here is the straight answer: the line’s qualifying payment is the interest-only payment calculated on the maximum draw. It is not a payment on the portion you plan to use.
That matters because the investment-property line runs a 5-year interest-only draw followed by a 25-year fully amortizing repayment. At least 75% of the line is drawn at closing. Pricing floats across both periods and never converts to fixed. So a big line carries real weight in your ratio even if you barely touch the rest.
You will find conflicting advice online about undrawn lines. Some say undrawn money does not count. Others say the payment counts from day one. Both can be true, depending on which loan reads the line.
- HELOC underwriting: Tests the maximum draw. Undrawn room is not ignored.
- A DTI-based purchase loan: Adds the payment once a balance exists. Where no payment is documented, some guides impute a percentage of the balance.
- A DSCR purchase: Does not run personal DTI at all.
For contrast, Freddie Mac’s Guide says HELOC payments belong in monthly DTI when there is an outstanding balance. It also provides a default when no payment is documented. DSCR loans are not agency products. The point is only that a DTI-based loan treats the line as a monthly debt, while a DSCR loan does not.
Combined leverage works the same way. Lenders generally count the full line, drawn or not, when they add up CLTV. Undrawn room still counts as leverage.
How the Rental Purchase Treats the Line
A DSCR purchase reviews rent, leverage, reserves, and credit. The HELOC payment is not part of the ratio, because the ratio compares rent to that property’s PITIA only.
Your DSCR does not drop because you opened a line. Your cash flow does. Your personal DTI does too, and it matters for the next borrower-based loan you apply for.
A few ground rules from placing these files:
- Coverage: 1.00 is where many select programs start. A separate select-lender path takes coverage below 1.00, with leverage and terms adjusted.
- Leverage on a DSCR purchase: Most files land at 75% to 80% LTV. Select programs reach 85% LTV with roughly a 700-plus score.
- Credit: A 620 floor exists in parts of the network. Most programs want around 660, and 700-plus opens the strongest tiers.
- Reserves: Commonly around 6 months of PITIA, though they vary by lender, leverage, and loan size.
Clearing 1.00 is not positive cash flow. DSCR counts rent against PITIA only. Repairs, vacancy, management, utilities, and capex sit outside the calculation. If you also carry a line payment, those costs come out of the same rent check.
Two more points. First, whether a DSCR lender accepts borrowed funds for the down payment is program-specific. Confirm before you draw. Second, down payment and reserves are separate pots. Borrowed money may cover one and often cannot cover the other.
For the full picture of how these loans work, see the complete DSCR loans guide.
A Worked Example in Ratios
Run the numbers on an investor who owns a paid-off primary home and holds a 720 credit profile. She plans to buy a rental at 75% LTV on a DSCR purchase, so 25% down. All inputs are modeled assumptions, not market facts. Leverage, reserves, and pricing vary by lender and program; the final terms follow the full file review.
Step one. She opens a line on her home. The lender tests DTI on the interest-only payment at the maximum draw. With no mortgage on the home, that payment is the main new debt, and her DTI sits well inside the 50% ceiling.
Step two. She draws the funds and lets them season on a statement. The purchase lender can then trace the deposit to the line instead of an unexplained transfer.
Step three. The rental’s rent clears roughly 1.2x against its own PITIA. The DSCR lender reviews the rent, leverage, credit, and reserves. Her personal DTI is not the test.
The result. The rental’s coverage stays at 1.2x whether the line exists or not. But her personal DTI now carries the line’s payment. If she tries a bank-statement or conventional purchase instead, that payment lands in the ratio and can push it past the purchase lender’s own ceiling.
Same line. Same investor. Different outcome depending on which loan reads it.
Where the General Rule Breaks
The rule of thumb is simple: DSCR ignores the line and DTI-based loans count it. These cases bend it.
A conventional or income-based purchase. Any loan that is reviewed against personal income and DTI adds the line’s payment straight into your debts. A bank-statement loan works the same way. The line can break the ratio.
A line on a paid-off rental, not your home. Lenders see more default risk on investment collateral. NerdWallet notes the lender pool is smaller and borrowing limits are lower. On this network, an investment-property line is capped at 70% CLTV, requires a 700 minimum credit profile, and tops out at $500,000. Credit above 700 buys eligibility, not extra leverage. Primary-residence and second-home lines can reach 90% CLTV, but only at a 720-or-better credit profile.
Title held in an LLC. An LLC cannot hold title on the line. Only an individual or an inter vivos revocable living trust qualifies, and a property already deeded to an LLC needs a vesting change or a DSCR cash-out instead. A DSCR loan can be made to an LLC, subject to lender program eligibility. The line cannot.
An LLC rental does not hide the debt. A lender can count your personal-name payments and still ignore LLC-held rental income. That is how some borrower-based files look worse on paper than the portfolio really is.
An existing DSCR first mortgage. Some DSCR loans limit additional liens on the property. Check the loan documents before you add a line behind one.
A growing portfolio. Each new financed loan adds to DTI, so borrower-qualified lines get harder as you scale. A borrower is limited to three lines on this network, and an owner of more than 15 financed properties is not eligible.
Property types. Manufactured homes, log homes, condotels, co-ops, and mixed-use or agricultural zoning are not eligible for the line. Manufactured homes, log homes, and barndominiums are likewise not offered under the network’s DSCR programs.
A line that gets frozen. The CFPB’s HELOC booklet says lenders can generally freeze or reduce a line if the home’s value falls or your finances worsen. If you plan to rely on undrawn room as a safety net, it may not be there when you need it. The same booklet warns that your home is at risk if payments fail.
One more practical point: the HELOC is only available in Lendmire’s 16 full-service states. That is narrower than the 41-market DSCR footprint, which includes Washington, D.C.
Which Structure Fits Your Situation?
This is a genuine judgment call. A HELOC keeps your DSCR file clean and avoids touching a rental’s first loan, but it ties the rental’s cash needs to your home. The DSCR cash-out path puts the debt on the rental.
| Structure | Reviewed on | Collateral | Best fit |
|---|---|---|---|
| HELOC on paid-off home | Your credit, DTI, equity | Your home | Strong DTI, want a flexible line |
| DSCR cash-out refinance | Rent covering the payment | A rental | Rental has equity, DTI is tight |
| DSCR purchase, cash down | Rent covering the payment | The new rental | You already hold the cash |
A cash-out on a standard rental tops out around 75% LTV across most of the network, with about 6 months of seasoning as the common expectation. On short-term-rental collateral, cash-out is capped at 70%. If your DTI is already stretched by existing loans, the cash-out path may fit better. If your DTI is clean and you want the home’s equity working, the line may fit better. Terms vary by lender guidelines, property type, leverage, credit profile, and full file review.
For a deeper look at how the credit and DTI tests work on lines like this, see Lendmire’s piece Rental HELOC Credit and DTI Requirements With a Low First Lien.
Sequencing and Protecting Your DTI Room
Order matters here. Open and fund the line before you go under contract. Then season the draw on a statement so the deposit has a clean paper trail.
To protect DTI room:
- Ask for the line you need. A bigger line weighs more in the ratio, since the maximum draw is what gets tested.
- Pay down other debts first. Revolving balances and installment loans leave less space.
- Avoid new credit. New accounts before the application add to the ratio.
- Check lien and payoff details early. An unrecorded lien or a payoff mismatch can stall the file.
The aim is a file that clears both tests: enough equity and enough personal capacity for the line, then enough rental coverage for the purchase.
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.
Frequently Asked Questions
Does a first-lien HELOC lower the DSCR on my rental?
No. DSCR compares rent to that property’s PITIA, and the line’s payment is not part of it. The line affects your cash flow and your personal DTI. Coverage on the rental stays where the rent and PITIA put it.
Does an undrawn line count in my DTI?
It depends on which lender is reading it. The line’s own underwriting tests the maximum draw, and at least 75% of the line is drawn at closing anyway. A DTI-based purchase lender typically adds a payment once a balance exists. A DSCR purchase does not run personal DTI.
Can I use HELOC money for a DSCR down payment?
Often, but it is program-specific. Some DSCR lenders accept borrowed funds for the down payment, and some limit them for reserves. Confirm before you draw, and season the funds on a statement so the deposit can be traced.
Can I put the line on a rental I own free and clear?
Sometimes. The ceiling is 70% CLTV on an investment property, with a 700 minimum credit profile and a $500,000 line cap. Title must be in your name or a revocable living trust, not an LLC.
Will the line show up when I apply for my next loan?
Yes, as personal debt on any borrower-based loan. A DSCR loan to an LLC does not use personal DTI, subject to program terms, though your credit and guaranty still matter.
Comparing Your Options
If you are considering a home equity line and want to see how the numbers work, Lendmire can help you compare HELOC options based on the property, the equity available, credit profile, combined leverage, and your goals. Reach the team at 828-256-2183, or request a quote.
About Lendmire
Lendmire, NMLS# 2371349, is a mortgage brokerage that arranges home equity lines of credit through wholesale lending partners in its 16 full-service states. Lines on primary residences, second homes and investment properties are each reviewed individually by the lender under the program’s occupancy, credit and combined-loan-to-value guidelines. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 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. Freddie Mac Guide, Section 5401.2
2. NerdWallet: Can You Get a HELOC on an Investment Property?
3. CFPB: What You Should Know About Home Equity Lines of Credit
This article is part of Lendmire’s investment property HELOC program — full qualification details, guidelines, and scenarios live on the program page.
Related reading: How a HELOC Second Lien Affects DTI When You Keep a Low First Mortgage · Use HELOC for Investment Property Will Affect DTI · How a HELOC on a Paid-Off Home Affects Cash Flow at Full Leverage
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.