Top HELOC Providers When You Want to Keep a Locked-in Mortgage

The Quick Read: A standalone home equity line sits beside your existing mortgage, so the low rate on your first loan stays untouched, and the right provider depends on whether the line sits on your home or a rental, how much combined loan-to-value your credit supports, and how the property is titled. Lendmire is a mortgage broker, so it does not rank or name lenders. It shops a network of wholesale HELOC lenders and matches your file to the program that fits. The rules below show what those lenders look for.

• Investment property: the network ceiling is 70% combined loan-to-value (CLTV) with a 700 minimum score and a maximum line of $500,000.
• Primary residence: the ceiling reaches 90% CLTV only at a 720-or-better credit profile, for lines up to $500,000.
• Title: the individual borrower or a revocable living trust. LLCs cannot hold title on these lines.
• Rate behavior: pricing floats and never converts to fixed, so you carry two payments, one steady and one variable.
• Availability: equity lines are offered in 16 full-service states, a narrower footprint than Lendmire’s 41-market DSCR platform.

Every figure is subject to lender guidelines and full file review. None of it is a commitment to lend.

Why Keep the First Mortgage at All?

If your first mortgage carries a rate well below today’s, replacing it means repricing the entire balance, not just the cash you pull out. A cash-out refinance does exactly that. A standalone line leaves the first loan alone and adds a second lien (a loan that ranks behind the first) for only the amount you borrow.

The choice comes down to blending costs. Compare the price of the new line on the small amount you borrow against the price of repricing the whole first balance. If your current rate is at or above where new loans price, the refinance may improve your terms. If it sits far below, the line deserves a serious look, because the refinance reprices a large balance at a much higher rate.

The line is not free money. It carries a variable payment, it stacks leverage on top of the first loan, and it raises the odds of a payment squeeze if rents soften. It fits best when you need a defined amount of cash, you are comfortable carrying two payments, and your title and property type are simple.

What Does “Provider” Mean When Lenders Write This Product?

Lenders use “provider” loosely, so the useful question is which program fits your file. A broker answers it by comparing guidelines rather than promoting one brand. The best program for your situation depends on property type, credit profile, leverage need, and how your title is held. Lendmire places files with select wholesale partners and compares their guidelines against yours before you apply anywhere.

Two wholesale draw structures exist across the network. One runs a 3-year interest-only draw followed by a 17-year fully amortizing repayment. The other runs a 5-year draw followed by a 25-year repayment. Investment lines run only the 5-year/25-year structure. Some states shorten these periods.

At least 75% of the line is drawn at closing on both structures. That matters if you wanted a large undrawn cushion. After closing, the minimum subsequent draw is generally $1,000, though one structure does not state a subsequent-draw minimum and some states set higher floors.

How Does Underwriting Treat the Line, Step by Step?

Underwriting treats an equity line as a borrower loan. The lender looks at your credit, your debt-to-income ratio (DTI), the equity in the property, and the property itself. Rent on a rental is a secondary input. Here is the sequence.

Step 1: Choose the collateral. You can put the line on your own home or on the rental itself. On this network, an investment-property line needs a 700 score and tops out at $500,000 and 70% CLTV. A primary residence can reach 90% CLTV at 720 or better. A second home reaches 90% at 720 as well. Anything above a $500,000 line is primary-residence only, requires 700 or better (720 on the 5-year/25-year structure), caps at 75% CLTV, and requires a full appraisal.

Step 2: Compute CLTV. Add your first mortgage balance to the full line limit, then divide by the property value. The line limit counts as debt even when undrawn. The CFPB booklet on home equity lines shows the basic method: take a percentage of the appraised value, then subtract what you owe. Its example uses 75%, but that is an illustration, not a program limit. On this network, the applicable ceiling depends on occupancy and score.

Run it in percentages. Say your rental has a first mortgage at 55% of value. A 70% investment ceiling leaves room for a line of about 15% of value, capped at $500,000. Now picture a primary residence with a first mortgage at 50% of value and a 720 score. The 90% ceiling leaves room for up to 40% of value, still capped at $500,000.

Step 3: Qualify on DTI. The maximum DTI is 50%. Profiles with credit from 600 to 679 are held to 45%, and any ratio above 45% requires a 680 minimum score. The lender reviews your file on the interest-only payment calculated on the maximum draw, not on what you plan to borrow. Sizing the line smaller than your equity allows can make the DTI test easier to clear.

Step 4: Value the property. Lines at or below $500,000 ordinarily use automated valuation, with no traditional appraisal, though a higher CLTV may require a secondary valuation. A full appraisal is required on every line above $500,000. You can request one in any case.

Step 5: Close and carry two payments. Your first mortgage keeps its terms. The line comes with a draw period, when you can borrow up to the limit, followed by a repayment period. Per the CFPB overview of home equity lines, repayment often runs over ten or 20 years. Stress-test your rental coverage against a line payment that moves.

Which Structures and Variations Exist?

The network offers more than one shape of line, and the differences matter more than the brand.

Lien position. The line can sit in first or second position. For a borrower keeping a locked-in mortgage, second position leaves the first loan intact.

Draw and repayment length. The 3-year/17-year structure shortens the interest-only window. The 5-year/25-year structure lengthens it and spreads the principal repayment over more years. Longer runways tend to lower the amortizing payment once the draw ends, but they also keep you in interest-only mode longer.

Credit tiers. The network floor is 600 on primary residences, 640 on second homes, and 700 on investment properties. Higher tiers unlock more leverage. Tradeline and housing-history standards also vary by program. One structure requires two tradelines seasoned 12 months, or one seasoned 24, with a clean housing history across all financed properties.

Exposure. A borrower is limited to three lines. Combined exposure caps at $2,000,000 on one program and $750,000 on the other. A borrower with more than 15 financed properties is not eligible.

Property types. Single-family, 2-4 units, PUDs, townhomes, and condominiums (including non-warrantable) are eligible. Modular factory-built homes are eligible on one program only. Manufactured homes, co-ops, condotels, log homes, and commercial, mixed-use, or agricultural-zoned properties are not eligible on either program.

Lendmire’s piece Best HELOC Program When You Want to Keep a Locked-in Mortgage walks through how to match these structures to a goal.

Where Does the General Rule Break?

The general rule says a line preserves your first loan and costs less than a refinance. These edge cases break it.

LLC-owned rentals. Title must be held by the individual borrower or a revocable living trust. LLCs, corporations, partnerships, and irrevocable, blind, or land trusts cannot hold title. This is the sharpest structural difference from a DSCR loan. A property already deeded to an LLC needs a vesting change, or a DSCR cash-out instead, subject to program terms.

Not on the mortgage. If you are not a borrower on the existing loan, the file changes. Lendmire’s article Top Investment Property HELOC Providers When You’re Not on the Mortgage covers that case.

Recent credit events. A bankruptcy needs 4 years of seasoning from discharge or dismissal on both programs. Foreclosure history splits. One program seasons a foreclosure in 7 years and a deed-in-lieu, pre-foreclosure, or short sale in 4. The other declines that history entirely, regardless of age. Investment files follow the 7-and-4-year path.

Listed properties. A property listed for sale, or listed within the past 60 days, is ineligible in several states. Confirm that before you spend time on a file.

Selling later. If you sell the home securing the line, you are generally required to pay it off in full. Plan an exit before you draw.

Renting out the collateral. If the line sits on your own home, check the terms before you convert that home to a rental. Occupancy rules differ by program, and an investment line carries the stricter 700 score and 70% CLTV ceiling.

State differences. A few states shorten draw periods, set higher minimum draws, or add waiting periods. Homestead rules can cap primary residences below the headline matrix. Confirm the state-level terms for your property.

Tax treatment can depend on how the funds are used and how the property is held. Borrowers should keep clear records and speak with a qualified tax professional before relying on any deduction.

Key Terms Defined

CLTV (combined loan-to-value): your first mortgage balance plus the full line limit, divided by the property value.

Open-end line: a credit line you can borrow against, repay, and borrow again within the draw period.

Draw period: the stretch when you can borrow, usually on interest-only payments.

Repayment period: the stretch after the draw ends, when principal and interest are paid down.

Lien position: where a loan ranks if the property is sold or foreclosed. First position is paid before second.

DSCR (debt service coverage ratio): monthly rent divided by the full monthly property payment. It measures rent against the payment only, so clearing 1.00 does not mean positive cash flow after repairs, vacancy, and management.

What Does the Decision Look Like in Practice?

Start with three questions.

Is the first mortgage worth protecting? If its rate sits well below where new loans price, keeping it is usually worth a second payment. If it does not, a refinance may do the job in one loan.

Who holds title? If an LLC holds the rental, an equity line is off the table until the title changes. A DSCR cash-out refinance qualifies primarily on property-level rental income covering the payment, subject to lender guidelines. It tops out around 75% LTV on standard rentals and 70% on short-term-rental collateral, with about 6 months of seasoning as the common expectation. Credit expectations typically run near 660 across most programs, with a 620 floor in parts of the network. Select programs start at 1.00 coverage, and a separate select-lender path goes below 1.00 with leverage and terms adjusted. For the full picture, see Lendmire’s complete DSCR loans guide.

Can you carry the line payment if it moves? The line floats across both the draw and the repayment period. Qualify on a payment you could still handle after a meaningful increase. Test your rental coverage as well, because a line on the rental adds debt to the property itself.

A line also fits better when the cash has a defined job. A down payment, a rehab budget, or a short bridge to a refinance each has a clear payoff path. An open-ended plan to draw as needed with no repayment plan does not.

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. Lendmire is a broker, not a lender, and lender guidelines and full file review decide every outcome.

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 booklet – What you should know about home equity lines of credit

2. CFPB overview of home equity lines