How to Qualify for an Investment Property HELOC With All Other Units Leased

The Quick Read: Full leases help your file, but a lender approves an investment equity line mainly on your credit, your total debts against your income, and how much equity the property holds, not on the rent alone.

• On an investment property, the network’s ceiling is 70% combined loan-to-value, and the line tops out at $500,000.
• The credit floor on an investment line is 700, and a 720 score buys no extra leverage.
• Debt-to-income can run up to 50%, measured on the interest-only payment at the maximum line you request.
• The title must sit with you personally or in your revocable living trust, not in an LLC.
• If rent is the strength of your file, a DSCR cash-out refinance is the product that qualifies primarily on property-level rental income covering the payment, subject to lender guidelines.

The phrase “all other units leased” can mean two different things, and the answer changes slightly with each. The first meaning is a duplex, triplex or fourplex where one unit is vacant, owner-used or under rehab, and every other unit has a tenant. The second meaning is a portfolio investor whose rentals are all occupied. Underwriting works the same way in both cases, and this article covers both.

What Is an Investment Property HELOC?

An investment property HELOC is a revolving line of credit secured by a rental you own. You borrow against the equity, repay, and borrow again during the draw period. Equity is the property’s value minus what you owe on it.

Not every lender offers one. NerdWallet notes that rental HELOCs aren’t available everywhere and that qualification is strict, with proof of long-term tenants among the requirements for rentals. Across a wholesale network, the picture is similar. Only a handful of lenders write non-owner-occupied lines, and their guidelines are tighter than for a primary home.

Here is how the line is structured on the investment side of the network:

• It is a standalone line, in first or second lien position.
• The draw period is 5 years, interest-only, followed by a 25-year repayment period that fully amortizes.
• At least 75% of the line is drawn at closing.
• The line runs from $25,000 up to $500,000.
• A borrower can hold up to three lines, and a borrower with more than 15 financed properties is not eligible.

Lendmire is a mortgage broker, not the lender. It arranges these lines through select wholesale partners, and every figure here is subject to lender guidelines and full file review. This product is available only in Lendmire’s 16 full-service states, which is narrower than its 41-market DSCR footprint, including Washington, D.C.

What Do Leased Units Prove to an Underwriter?

Leases prove that the rental income on your tax return is real and likely to continue. They do not turn the line into a rent-based loan. A HELOC is a personal-credit product, so the lender asks whether you can carry all your debts, not whether one building covers itself.

Think of it as a fork in the road. The table below shows the two underwriting models side by side.

DSCR stands for debt service coverage ratio. It divides the property’s monthly rent by its monthly payment, which covers principal, interest, taxes, insurance and any association dues. Clearing 1.00 means the rent covers that payment. It does not mean the property is cash-flow positive, because repairs, vacancy, management and utilities sit outside the calculation.

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.

How Does Underwriting Treat the Leased Units, Step by Step?

Underwriting checks five things in order: property eligibility, title, equity, credit, and debt-to-income. Leased units matter most in the last step, because that is where rental income enters the math. Each step can end the file on its own.

Step 1: Property eligibility. Single-family homes, 2-4 unit buildings, PUDs, townhomes and condos (including non-warrantable condos) are eligible. Manufactured homes, co-ops, condotels, log homes, commercial property, mixed-use and agriculturally zoned land are not offered.

Step 2: Title. The deed must show you personally or your inter vivos revocable living trust. LLCs, corporations, partnerships and irrevocable, blind or land trusts cannot hold title. A rental already deeded to an LLC needs a vesting change first, or it belongs in a DSCR cash-out instead.

Step 3: Equity. The test is combined loan-to-value, or CLTV: every lien on the property plus the new line, divided by the property’s value. On an investment property, the ceiling is 70% CLTV. Mortgages on your other rentals do not enter this ratio.

Market surveys report that rental HELOCs generally require at least 20% equity, per NerdWallet. The network’s investment ceiling is tighter than a simple equity cushion suggests, at 70% CLTV.

Step 4: Credit. The minimum is 700 on an investment line. A 720 score reaches the same 70% CLTV, so the extra points add comfort, not leverage. The lender uses a single-bureau score tied to the primary wage earner, and the credit report must be no more than 90 days old at closing.

Step 5: Debt-to-income. Debt-to-income, or DTI, is your total monthly debts divided by your gross monthly income. The maximum is 50%. The lender calculates the line’s payment as interest-only on the maximum line, not on what you actually draw. A larger line request therefore tightens your DTI even if you borrow little.

The FTC says the amount you can borrow depends on your income, credit history and the home’s market value. Those are exactly the levers in steps 3 through 5.

How Is Rental Income Counted?

Lenders count documented rental income, usually from your tax return, plus current leases. Banks that write these lines commonly start from the bottom-line figure on Schedule E, which already subtracts expenses and depreciation. That means a fully leased building can still produce a modest usable number.

Every financed property you own adds its full payment to your debts. Leased status does not remove a mortgage from the DTI calculation. This is why a portfolio investor with many financed rentals can reach the DTI ceiling before the equity becomes usable. If that sounds like you, the leases are not the problem. The structure of the product is.

A newly signed lease helps less than a lease with a history of rent collected. Lenders want to see that income on paper before they trust it.

Where Does the General Rule Break?

The general rule is that leased units support the file and vacant units do not help it. Several real-world situations bend that rule, so check yours before you apply.

• One vacant unit. A vacant unit usually contributes no counted rent, or a reduced amount, depending on the lender. The leased units still support the file. No standard formula exists, so ask each lender how it treats a unit without a tenant.
• You live in one unit. The property is then a primary residence, not an investment property, and different rules apply. A primary-residence line can reach 90% CLTV, but only at a 720-or-better credit profile, and that ceiling never applies to a rental. Lenders verify occupancy, and claiming the wrong classification can fail the file.
• Month-to-month tenants. These are real tenants, but a signed lease with a term is stronger evidence of stable income.
• A relative in a unit. Lenders often look harder at related-party tenancy. Expect to document that rent is actually paid.
• A short-term rental unit. Hosting income is lumpier, and lenders may want a longer history before counting it. Local short-term rental rules vary by city, county, HOA and property type, so confirm them before relying on projected rental income.
• An unpermitted or illegal unit. A lender can only count a unit that is legal. An unpermitted unit may be excluded from both income and value.
• A recent rehab. The line’s valuation is usually automated. A rehab may support a higher appraised value, depending on comps and underwriter review, and you can request a full appraisal in any case.
• An LLC-owned building. A few lenders in the wider market may accept LLC title, but this network does not on an equity line.

Seasoning and credit events can also matter. A bankruptcy needs 4 years of seasoning from discharge or dismissal. On investment files, a foreclosure follows a 7-year seasoning path, and a deed-in-lieu, pre-foreclosure or short sale follows 4 years.

How Do You Prepare the File?

Gather the documents that prove the things a lender tests: who owns the property, what it earns, and what you owe. A tidy package lets the lender focus on the numbers instead of chasing paperwork. Here is the usual set:

• Government ID and vesting deed. These prove who you are and how the title is held.
• First-mortgage statement. This shows the balance that sets your CLTV.
• Insurance declarations page. This proves the building is covered.
• Leases and rent evidence. Signed leases and proof of deposits show that the tenants are real.
• Tax returns with Schedule E. These show how much rental income you report.
• Statements for every financed property. These feed your total debt picture.
• Bank statements. These show funds and payment history.

Run a quick self-check before you apply. Is your score at 700 or better? Is your title in your name or a revocable trust? Does your first mortgage plus the line you want stay within 70% of the building’s value? Does your total DTI stay under 50% when the full line is counted? Four yeses make a real file. Any no steers you toward another route.

When Is a HELOC the Wrong Tool?

A HELOC is the wrong tool when your strength is rent rather than personal income, when an entity owns the building, or when you need more than the line allows. A HELOC fits modest, flexible needs from an investor with strong credit and DTI room. A DSCR cash-out refinance fits larger needs or entity-held portfolios.

A few honest tradeoffs apply. On an existing first mortgage, a second-lien HELOC is paid in addition to the first, as the CFPB explains. The CFPB also notes that a lender may stop further draws if the home’s value falls significantly. A line you counted on for your next purchase could shrink at the wrong time.

On the DSCR side, here are the network’s typical ranges, always subject to lender guidelines:

• Standard rentals: cash-out refinance tops out around 75% LTV, with about 6 months of seasoning as the common expectation.
• Coverage: 1.00 is where many select programs start. A separate select-lender path takes coverage below 1.00, with leverage and terms adjusted.
• Credit: a 620 floor exists in parts of the network, most programs want around 660, and 700 or better unlocks the strongest leverage.
• Loan size: up to $3,000,000 on standard programs (smaller balances available through select lenders).
• Title: LLC-titled borrowers can be considered, subject to lender program eligibility.

The strongest files clear two tests: enough equity and enough rental coverage. A larger down payment or more equity can lift the coverage ratio, but it never erases leverage caps, credit floors, reserve rules or property eligibility. For the full picture, see Lendmire’s complete DSCR loans guide.

Key Terms Defined

CLTV (combined loan-to-value): All liens on the property plus the new line, divided by the property’s value.

DTI (debt-to-income): Your total monthly debts divided by your gross monthly income.

DSCR (debt service coverage ratio): Monthly rent divided by the monthly payment of principal, interest, taxes, insurance and any association dues.

Draw period: The stretch when you can borrow against the line, which is 5 years of interest-only payments on an investment line here.

Vesting: How the deed names the owner, such as an individual, a revocable trust or an LLC.

Automated valuation: A computer-generated estimate of value used instead of a full appraisal, common on lines of $500,000 or less.

Next Steps

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.

About Lendmire

Lendmire (NMLS# 2371349) is a mortgage brokerage serving homeowners and real estate investors in its 16 full-service states. Home equity lines of credit are arranged through wholesale lending channels; Lendmire brokers the line and the lender underwrites each application under its occupancy-based guidelines. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.

Investors who want the broader program framework can review how DSCR loans work.

References

1. NerdWallet – HELOC on an Investment Property

2. FTC – Home Equity Loans and HELOCs

3. CFPB