How Much Can You Borrow on an Investment Property HELOC on a Rental It Owns?

The Quick Read: It depends on your equity. Across Lendmire’s wholesale network, an investment-property line tops out at 70% combined loan-to-value (CLTV, meaning all loans on the property added together, divided by its value) and a $500,000 line size, minus every lien already on the rental, and you also need a 700 credit score and title in your own name or a revocable trust. Your personal debt-to-income ratio then decides whether you can use all of that room. Leverage, reserves, and pricing vary by lender and program; the final terms follow the full file review.

• The line is the room left after your first mortgage and any other liens.
• Title must be personal or a revocable living trust, so an LLC-owned rental does not fit.
• Most investment lines are valued by automated valuation, not a full appraisal.
• If the rental sits in an LLC or the equity is thin, a DSCR cash-out refinance is often the better tool.

The Math: Value Times the Cap, Minus What You Owe

Your maximum line equals the rental’s value times 70%, minus the balance of every loan already secured by the property. That is the whole formula. The lender then checks that the result fits the $25,000 to $500,000 line-size range and your personal qualification.

Picture a rental with a first mortgage equal to half its value. Seventy percent minus 50% leaves room equal to 20% of the value. If the first mortgage is 65% of value, only 5% remains. Once the mortgage reaches 70% of value, you have no room at all.

Equity is not the same as borrowing power. You might own 40% of a rental free and clear of debt and still be able to borrow against only part of it, because the cap protects the lender’s cushion. The final 30% of value stays untouched by design.

The full credit limit counts toward CLTV, not just the amount you draw. A line sized at the maximum is treated as fully used when the lender measures leverage.

What the Number Looks Like at Different Mortgage Balances

Here is how the room changes for the same rental under the 70% investment cap. The figures are percentages of value, shown as an illustration and not as an offer.

The 70% in the first row is a ceiling, not a guarantee. A free-and-clear rental can carry a line in first-lien position on this network. The line can also sit behind your existing mortgage in second position, which lets you keep a first mortgage you like.

One more cap applies. Even a rental worth several million dollars is limited to a $500,000 line, so large, low-leverage properties often hit the dollar cap before the percentage cap.

Why Your Offer May Come In Below the Maximum

The valuation is usually the first surprise. Because an investment line stops at $500,000, it normally runs on an automated valuation with no traditional appraisal. A borrower can still ask for a full appraisal. Either way, the lender uses its own value, not the one on your listing or your tax bill.

Say you expect the rental to be worth a certain amount and carry a first mortgage equal to 50% of that figure. At your expected value, the 70% cap leaves room equal to 20%. If the valuation comes in 10% lower, the cap shrinks to 63% of your expected value. The room drops to 13%, a one-third cut from a small valuation miss.

Three other things trim the line:

• Personal debt. The maximum debt-to-income ratio is 50%. The lender reviews your file on the interest-only payment at the maximum draw, so the whole line counts against you.
• Credit profile. Investment lines require 700. The network has one tier on investment lines, so a 760 earns no more leverage than a 700. The score is a gate here, not a dial.
• Exposure. A borrower is limited to three lines in total. An investor with more than 15 financed properties is not eligible.

According to NerdWallet, some lenders go up to about 80% on rentals while many sit below 70%. That describes the wider market. On this network, an investment line caps at 70% CLTV with a 700 minimum credit score, and every file is subject to lender guidelines.

How the Line Works After Closing

An investment line on this network runs a five-year interest-only draw period, then a 25-year fully amortizing repayment period. At least 75% of the line is drawn at closing. Pricing floats across both periods and never converts to fixed.

That structure changes the planning. Because most of the line is drawn up front, you should size it to the money you actually need, not the biggest number the formula allows. Interest-only payments in the draw years are lower than they will be later. When repayment begins, the payment steps up because principal starts to amortize.

After closing, the minimum additional draw is $1,000. Draws help only if you need staged access, such as funding renovations in phases. Since the pricing floats, the monthly cost can rise if the index moves, and a vacancy or rent dip on top of that squeezes cash flow. Run a stress case before you sign: ask what you would do if the payment rose and the unit sat empty for a while.

Default on the line puts the rental itself at risk of foreclosure. That is the real cost of borrowing against a property you depend on for income.

Who Can Hold Title and Which Properties Qualify

Title is where many rental owners get stuck. The property must be held by you individually or by your revocable living trust. LLCs, corporations, partnerships, and irrevocable, blind, or land trusts cannot hold title. Investor-forum discussions point the same way, as BiggerPockets members describe lenders declining rentals titled in an LLC.

If your rental is already deeded to an LLC, you have two options. You can change the vesting, which may carry its own considerations for your insurance and liability setup. Or you can skip the HELOC and use a DSCR cash-out refinance, which is built for entity ownership, subject to lender program eligibility.

Eligible property types include single-family homes, 2-4 unit buildings, planned unit developments, townhomes, and condominiums, including non-warrantable condos. Manufactured homes, co-ops, condotels, log homes, commercial and mixed-use properties, and agricultural zoning are not offered. Modular homes are available only through one of the two wholesale programs, so confirm it for your property.

Short-term rentals add an occupancy question. Treatment varies by lender, and a property that rents nightly may not be classified the way a long-term rental is. Short-term rental rules can vary by city, county, HOA, and property type, so investors should confirm local rules before relying on projected rental income.

Availability is also narrower than the DSCR footprint. These lines are offered only in the 16 states where Lendmire is a full-service broker, while its DSCR investor programs cover 41 markets, including Washington, D.C.

What Lenders Look at for You, Not Just the Rental

A line like this qualifies you as a borrower. A DSCR loan, by contrast, qualifies primarily on property-level rental income covering the payment, subject to lender guidelines. The HELOC leans on your credit report, your debts, and your documented income.

Expect the file to review:

• A credit report no more than 90 days old at closing, using a single-bureau score keyed to the primary wage earner.
• Housing payment history across all your financed properties.
• Bankruptcy seasoning of four years from discharge or dismissal. Foreclosure, deed-in-lieu, pre-foreclosure, and short-sale history on investment files follows seasoning of 7 years for a foreclosure and 4 for the others.
• Your income documentation under the applicable program, along with lease or rent information for the rental.

If your score is below 700, the investment line is not available, though other products may still fit.

When the HELOC Is the Wrong Tool

A line on a rental you own makes sense when you have a first mortgage worth keeping, plenty of room under 70%, a clean credit profile, and the rental in your own name. It lets you pull equity without touching the existing loan.

It makes less sense in four cases. The first is a recently purchased or highly leveraged rental with little room under the cap. The second is an LLC-owned property. The third is a heavy personal debt load. The fourth is a plan to hold the money for many years, because the floating pricing and the 25-year repayment step-up add uncertainty.

Here the DSCR cash-out refinance enters the picture. It replaces the first mortgage and qualifies primarily on rent covering the payment. For short-term-rental collateral, cash-out is capped at 70%. The tradeoff is that you give up your existing first mortgage. Lendmire’s complete DSCR loans guide walks through how that structure works.

Clearing 1.00 on coverage does not mean the property cash flows. DSCR compares rent only to principal, interest, taxes, insurance, and any HOA dues. Repairs, vacancy, management, and capital expenses sit outside the calculation.

A Self-Check Before You Apply

Run this in order. It takes a few minutes and tells you whether a line is realistic.

1. Confirm title. Is the rental in your name or a revocable trust? If it is in an LLC, stop and consider a DSCR cash-out.

2. Estimate value conservatively. Use a figure a little below your own guess, because the automated valuation can come in lower.

3. Add every lien. Include the first mortgage and any second lien, as a percentage of value.

4. Compare against the combined-leverage limit. The gap between your total liens and that limit is your room. If it is zero or negative, a HELOC does not fit.

5. Check the dollar range. The line must be at least $25,000 and no more than $500,000.

6. Check credit and debt. You need 700 or better, and your debt-to-income ratio, calculated on the maximum draw, must stay at or under 50%.

7. Check property type. Make sure it is not a manufactured home, log home, condotel, or mixed-use building.

8. Decide how much to draw. At least 75% comes out at closing, so size the line to your actual need.

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. Quotes are available at 828-256-2183 or through the site’s quote form.

Key Terms Defined

CLTV (combined loan-to-value): All loans secured by the property, including the full HELOC limit, divided by the property’s value.

HELOC (home equity line of credit): A revolving line secured by property, with a draw period followed by a repayment period.

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

Lien: A lender’s legal claim on the property, ranked by order of position.

Automated valuation: A computer-generated estimate of value used in place of a traditional appraisal.

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

About Lendmire

As a mortgage broker (NMLS# 2371349), Lendmire helps homeowners and real estate investors in its 16 full-service states open home equity lines of credit arranged through wholesale lenders. Lendmire is never the lender; line amounts, ceilings and terms are set by the lender under its guidelines. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.

References

1. NerdWallet

2. BiggerPockets – HELOC availability on a rental

3. Rental Real Estate – HELOC guide