How Much Can You Borrow on an Investment Property HELOC or Home Equity Loan?

The Quick Read: The limit is the property’s value times the lender’s maximum combined loan-to-value (CLTV), minus every lien already on it, and a dollar cap can shrink that result further. On an investment property in Lendmire’s network, the ceiling is 70% CLTV with a maximum line of $500,000, subject to lender guidelines and full file review.

• Equity you can tap is value minus all existing mortgages, and the CLTV cap is applied before you reach that number.
• Investment lines in the network need a 700 minimum credit score, and a score above 700 does not raise the 70% ceiling.
• Lenders count the full line limit in the CLTV test, not just the amount you draw.
• An investment line is qualified on the borrower’s personal profile (debt-to-income up to 50%), not on the rent.
• If the property sits in an LLC, a HELOC generally cannot be used, which is where a DSCR cash-out refinance enters the picture.

Many investors assume a rental works like their own home. It does not. Equity lines on rentals are tighter, offered by fewer lenders, and sized differently. This guide shows the math, the exceptions, and where a DSCR loan fits better.

How Is the Maximum Borrowing Amount Calculated?

The formula is simple: maximum line = (property value × maximum CLTV) − existing liens. The binding limit is whichever is smaller, the CLTV result or the lender’s dollar cap.

The CFPB describes the equity you can borrow against as the home’s value minus what you owe on your mortgage. CLTV adds a second step. It is your first mortgage balance plus the new line, divided by value. The lender checks that ratio against its cap before anything else.

Three worked examples show how the cap and the first mortgage interact. All three use a 70% CLTV investment-property ceiling and a $500,000 dollar cap, stated as percentages rather than payment figures.

The low-equity row is the one that surprises people. A $400,000 rental with a first mortgage near half its value has far less room than the raw equity suggests, because 70% of value is the ceiling on all debt combined. The paid-off row shows the opposite problem. Seventy percent of $900,000 is $630,000, but the line tops out at $500,000. The smaller number wins.

A recent purchase or a high first mortgage can leave no room at all. In that case, no line is possible until paydown or appreciation brings combined leverage under the cap.

Does the Full Line Count, or Only What You Draw?

The full line limit counts. A lender tests CLTV against the entire approved line, not the balance you have drawn so far.

That matters for sizing. An investor who wants a $150,000 line as a safety cushion but expects to draw only $40,000 still uses the whole $150,000 of capacity in the CLTV test. It also matters for anyone holding more than one line. The network limits a borrower to three lines, with combined exposure caps that depend on the program, and a borrower owning more than 15 financed properties is not eligible.

Investment Property vs. Primary Residence Limits

The network’s ceilings are tiered by how the property is used, and the table below sets the two occupancy types side by side.

The 90% primary-residence figure exists only at a 720-or-better credit profile. It is never a general number, and it does not apply to rentals. Investors sometimes read market articles quoting higher CLTV figures for equity lines, but those describe the broader market rather than this network.

One more point on credit. An investment line has a single 70% CLTV ceiling, and a 720 score and a 700 score both reach it. Credit above 700 buys eligibility, not leverage.

HELOC vs. Home Equity Loan: Which Fits an Investor?

A HELOC is a revolving line you draw on as needed. A home equity loan is a lump sum paid out once. The CFPB explains that both are second mortgages when a first mortgage exists, paid on top of it.

The cap works the same either way. Leverage does not change because the product does. What changes is flexibility.

On the network’s investment HELOC, the structure is a five-year interest-only draw followed by a 25-year repayment. Pricing floats and does not convert to fixed. At least 75% of the line is drawn at closing. That minimum initial draw matters for investors who wanted a standby line they would barely touch. A known-cost rehab or a single down payment often suits a lump sum. Open-ended needs suit a line.

What Do Lenders Check Besides Equity?

Qualification on an investment HELOC is about you first and the property second. Rent does not raise the amount you can borrow.

• Credit: 700 minimum on an investment line. The score model is single-bureau and keyed to the primary wage earner.
• Debt-to-income: 50% maximum, qualified on the interest-only payment calculated on the maximum draw.
• Property type: single-family, 2-4 units, PUD, townhome, and condominium, including non-warrantable. Manufactured homes, co-ops, condotels, log homes, and commercial or mixed-use properties are not eligible.
• Title: the borrower must hold title personally or in a revocable living trust.
• Valuation: lines at or below $500,000 ordinarily run on automated valuation, though a higher CLTV may call for a secondary valuation, and a borrower can request a full appraisal.

Because an investment line caps at $500,000 and a full appraisal is required only on lines above that size, an investment line normally sits in the automated-valuation lane.

Documentation varies by lender, so ask early for the full list of items your lender will want for your file.

Lendmire’s network operates these equity lines in 16 full-service states, which is narrower than its DSCR footprint, so availability is the first thing to confirm. State rules can also differ on equity extraction. Texas, for example, applies a separate set of conditions to primary residences, so check the specifics for your own property.

What About the LLC Problem?

Title is the sharpest difference from a DSCR loan, and it catches many investors. An LLC cannot hold title on a home equity line in this network.

Corporations, partnerships, and irrevocable, blind, or land trusts are excluded as well. If your rental already sits in an LLC, you have two paths: move title to yourself or a revocable living trust, or use a DSCR cash-out refinance instead. Retitling can affect liability protection, insurance, and an existing mortgage’s due-on-sale terms, so it deserves a conversation with an attorney before you commit. For many LLC-held portfolios, the second path is simply cleaner.

When Does a DSCR Cash-Out Beat an Equity Line?

A DSCR cash-out refinance tests rent against the payment, not your personal income. It typically tops out around 75% LTV on standard rentals across most of the network, with about 6 months of seasoning as the common expectation, subject to lender guidelines.

The decision turns on investor profile. An investor with a high traditional employment income, one rental in their own name, and low debt may find a line workable and flexible. An investor with several mortgages, LLC-held properties, or self-employment income often finds the DSCR path fits better, since personal debt-to-income stops being the gate. Credit expectations also differ: most DSCR programs want around 660, with a 620 floor in parts of the network and 700+ unlocking the strongest leverage tiers.

Two cautions apply. First, a DSCR cash-out replaces your existing first mortgage, so you give up the loan you have. An equity line sits behind it. If your current first mortgage is one you want to keep, that is a real point for the line. Second, a DSCR ratio compares rent to the full housing payment only. Clearing 1.00 does not mean positive cash flow, since repairs, vacancy, management, utilities, and capex sit outside the calculation. For a deeper look at how these loans work end to end, the complete DSCR loans guide covers the structure.

Using a Line for a Cash Purchase

Some investors draw on a line, buy with no financing contingency, then refinance the new property to repay the line. It can make an offer stronger. It also stacks risk: if the follow-on financing does not come together, the line balance still has to be repaid, and the payment structure floats.

Think of it as bridge capital with a plan B required. Before drawing, confirm the new property would meet purchase leverage tiers, which on most files land at 75%-80% LTV, with select high-leverage programs reaching 85% LTV at roughly a 700+ score.

What Are the Risks?

• Variable payments. Pricing floats across the draw and repayment periods and never converts to fixed. After the five-year interest-only draw, the payment steps up as principal begins to amortize.
• Line freezes. A lender may freeze or reduce a line if property values fall significantly, so do not count on undrawn capacity staying available.
• Foreclosure exposure. The line is secured by the property. Default puts the property at risk.
• Stacked leverage. Borrowing against a primary home to fund a rental puts your residence at risk for an investment’s outcome. That is a serious trade-off, and it should not be made casually.

Where Most Investors Get It Wrong

• Assuming they can borrow 100% of equity. The CLTV cap includes the first mortgage and the full line limit.
• Treating a paid-off rental as unlimited. The 70% cap and $500,000 limit still apply.
• Expecting a higher score to buy more leverage. On an investment line, it does not.
• Expecting rent to increase the line. It does not on this product.
• Applying primary-home terms to a rental. They are stricter on rentals.

Key Terms Defined

CLTV (combined loan-to-value): Your first mortgage balance plus the new line, divided by the property’s value.

Lien: A legal claim on the property that secures a loan.

Draw period: The stretch when you can borrow from the line and pay interest only.

DSCR (debt service coverage ratio): Monthly rent divided by the property’s monthly payment, including principal, interest, taxes, and insurance.

Second mortgage: A loan secured by the property that sits behind the first mortgage.

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. Lendmire is a broker arranging financing through select lenders in its wholesale network, and nothing here is a commitment to lend. For borrowers whose properties sit in entities, or whose personal debt-to-income is the sticking point, the DSCR route in the same network is worth running side by side.

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.

References

1. CFPB

2. CFPB