How Much Can You Borrow on an Investment Property HELOC for a Landlord With Three Rentals?

The Quick Read: It depends on each property’s equity, because a line is sized one rental at a time: value times the 70% CLTV ceiling on an investment property, minus every lien already on that property, then capped at $500,000 per line and tested against your personal debt-to-income ratio, subject to lender guidelines. Equity in one rental never supports a line on another. Personal debt-to-income and equity both limit the result, so check each one before assuming equity is the only constraint.

• Each rental gets its own calculation, and the three results are added together afterward.
• Across the wholesale network Lendmire brokers through, an investment line caps at 70% CLTV, and a credit score above 700 does not raise that cap.
• A borrower can hold up to three lines, so three rentals can each carry one.
• Title must sit in your name or a revocable living trust, and an LLC cannot hold it.
• Terms depend on the lender’s guidelines, the property type, the leverage, and a full review of the credit profile.

Why There Is No Single Three-Rental Number

Each rental is its own collateral pool. A line is secured by one property only, so a rental with 45% equity and a rental with 12% equity produce two very different results. The strong one cannot cover for the weak one.

The formula is simple. Take the property’s value, multiply by the maximum CLTV, and subtract every lien already recorded against it. The answer is then capped at the program’s maximum line. On an investment property in this network, the ceiling is 70% CLTV and the largest line is $500,000, with a $25,000 minimum.

Many borrowers assume equity equals borrowing power. Benzinga makes the same point: owning a given amount of equity does not mean a line of that size, because the lender’s CLTV cap and your debt load set the limit.

Market-wide, investment-property lenders vary widely. NerdWallet notes that fewer lenders offer these lines and that they often ask for at least 20% equity. On this network, an investment line tops out at 70% CLTV, which means at least 30% equity stays in the property after the line is in place.

Key Terms Defined

• CLTV: Combined loan-to-value is the first mortgage plus the new line’s limit, divided by the property’s value, as Investopedia explains.
• Draw period: The stretch when you can borrow against the line and pay interest only. On investment lines in this network, it runs five years.
• Repayment period: The phase after the draw ends, when the balance amortizes over 25 years.
• DTI: Debt-to-income is your monthly personal debt payments divided by your monthly income, and the maximum here is 50%.
• Vesting: The way title is held on the deed, which decides whether a property can carry this kind of line at all.

A Worked Example With Three Rentals

Take a landlord with three rentals in different equity positions. All figures below are modeled assumptions, expressed as percentages of each property’s value so the math stays honest. The calculator on the site can convert them to dollars.

Rental C will likely fall below the $25,000 minimum line and drops out. Rental A, if its value is high enough, could hit the $500,000 per-line cap before it uses all of its room. A and B together make the landlord’s real usable total, and even that total is subject to combined-exposure limits that vary by program, plus the debt-to-income test.

The point of the table is the process: repeat the formula for each rental, discard anything below the minimum, apply the cap, and sum what remains.

What Runs Out First: Usually DTI, Not Equity

Debt-to-income is the constraint that surprises three-rental landlords. The 50% maximum is tested on the interest-only payment calculated on the full line, not on what you actually draw. A large line therefore counts against you, and because at least 75% of the line is drawn at closing, only a small portion is left undrawn.

Each added line stacks on the last. Three lines together can use up your personal DTI room, even when each rental has plenty of equity. That is why the equity formula is only half of the answer.

Several other limits sit alongside it:

• Credit: The floor is 700. Scores at 700 and at 720 both reach 70% CLTV on an investment line, so extra score buys eligibility, not extra leverage.
• Line count: A borrower can hold up to three lines. A borrower with more than 15 financed properties is not eligible.
• Structure: The line runs a five-year interest-only draw, then 25-year repayment. Pricing is variable and never converts to fixed, and at least 75% of the line is drawn at closing.
• Valuation: Because an investment line cannot exceed $500,000, it ordinarily runs on an automated valuation rather than a full appraisal. You may still ask for a full appraisal.
• Availability: Investment lines are offered in a limited set of states, a narrower footprint than DSCR lending.

Property type matters too. Single-family homes, two-to-four-unit buildings, PUDs, townhomes and condominiums, including non-warrantable condos, are eligible. Manufactured homes, co-ops, condotels, log homes, commercial and mixed-use properties, and agricultural-zoned land are not offered.

Does an LLC Change the Answer?

Yes, and it can end the conversation. Title must sit with you as an individual or in a revocable living trust. Rentals already deeded to an LLC, corporation, partnership or an irrevocable, blind or land trust cannot carry this line.

You then have two choices. You can change the vesting, which has its own legal and insurance consequences, or you can move to a cash-out refinance underwritten on the rent instead. That is the sharpest structural difference between an equity line and a DSCR loan. Landlords who put rentals into entities for liability reasons should settle this before they plan around a line, subject to program terms.

Three Single-Family Rentals vs. a Triplex

A triplex is one property, so it carries one line sized on one value. Three single-family homes can carry up to three lines, each sized separately. Two-to-four-unit buildings are eligible, but the unit count does not multiply the cap.

Uneven equity is common. One rental with big equity and two with little still yields one meaningful line, not three. If most of your equity sits in a single property, the portfolio may produce less than the number of rentals suggests.

A vacant or between-tenants rental can still be considered, because this line is not underwritten on lease income.

Which Collateral Should You Use?

A landlord with three rentals has three ways to pull equity, and they fit different goals. The comparison below covers the structural differences.

On a primary residence, the ceiling reaches 90% CLTV, but only at a credit profile of 720 or better. That higher leverage puts your residence behind a rental-property decision. A line on the rental keeps the risk on the rental itself.

DSCR cash-out refinance reaches around 75% LTV on a standard rental and 70% on short-term-rental collateral. Loans typically reach up to $3,000,000 on standard programs, with smaller balances available through select lenders. The file qualifies primarily on property-level rental income covering the payment, subject to lender guidelines, and it replaces the existing mortgage instead of sitting behind it.

Anyone leaning toward the refinance path can read the complete DSCR loans guide for how coverage is calculated. Most DSCR programs weigh rent against the full payment, and 1.00 is where many select programs start. A separate select-lender path takes coverage below 1.00 with leverage and terms adjusted.

What the Line Does and Doesn’t Do

An equity line is a source of capital for a down payment or a renovation. It is not a purchase loan, and the rent from the property does not repay it on its own. Interest-only payments leave the principal untouched, so only cash left after operating costs and the first mortgage can reduce the balance.

The line also changes later borrowing. Every line adds to your personal debt, which matters if your next loan is reviewed on personal DTI. A DSCR purchase is reviewed on property rent, so it is largely unaffected by personal DTI. If a rental carries an equity line and later enters a DSCR file, that second lien is counted in the payment tested against rent.

One more caution: clearing 1.00 coverage is not the same as positive cash flow. DSCR compares rent to the full monthly obligation only. Repairs, vacancy, management, utilities and capex sit outside the calculation.

Pre-Application Checklist

• List each rental’s current value estimate and every lien recorded against it.
• Confirm how title is held on each deed.
• Pull your credit and check that the score is at least 700.
• Add up your monthly personal debt and estimate how a full-line interest-only payment would affect your DTI.
• Gather the first-mortgage statement and insurance declaration for each property.
• Confirm that each property is an eligible type and sits in a state where investment lines are offered.

Next Step

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. As a mortgage broker arranging financing through select lenders in its wholesale network across 41 markets, including Washington, D.C., Lendmire can also show how a DSCR cash-out refinance would compare on the same three rentals. Programs change and every file is reviewed individually, so none of this is a commitment to lend.

About Lendmire

Lendmire is a mortgage brokerage (NMLS# 2371349) arranging home equity lines of credit — primary-residence, second-home and investment-property lines — through a wholesale lending network in its 16 full-service states. Eligibility is determined by the lender on each file. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.

References

1. Benzinga – HELOCs on investment properties

2. NerdWallet – HELOC on an investment property

3. Investopedia – Combined loan-to-value