How a First-Lien HELOC Replaces Your Mortgage and Draws Cash

The Quick Read: A single revolving credit line pays off your existing mortgage at closing, takes first position on the property, and leaves the equity above the payoff as undrawn credit you can borrow against later, though most of the line is drawn at closing. That swap changes how you pay, how the pricing behaves, and how much cash is actually left. Lenders also underwrite it to you as a borrower, not to the property’s rent.

• The line pays off the old mortgage, so the payoff is your opening balance.
• On this wholesale network, at least 75% of the line is drawn at closing, so the cash you can draw later is whatever remains.
• Pricing floats and never converts to fixed, so your payment can move.
• Investment-property lines top out at 70% CLTV (combined loan-to-value) and $500,000, with a 700 minimum score.
• A rental held in an LLC cannot use this product. A DSCR cash-out refinance is usually the better fit there.

What does “first lien” actually mean?

A lien is a lender’s legal claim on a property. The lien in first position gets paid first if the property is sold or foreclosed. Most home equity lines sit behind a mortgage in second position. A first-lien line is the exception, because it is the only loan recorded against the house.

That happens in two ways. If you own the property free and clear, a new line is automatically first. If you have a mortgage, the new line pays it off and takes its place. Both paths end the same way: one lender, one lien, one revolving line.

How does the swap work, step by step?

The mechanics follow a set order, and the order explains why “cash” is smaller than most borrowers expect.

1. Sizing. The lender takes a percentage of the property’s value and subtracts nothing else, because your old mortgage is about to disappear. The line must be large enough to cover that payoff.

2. Valuation. On lines at or below $500,000, the network ordinarily uses an automated valuation instead of a traditional appraisal. A full appraisal is required on any line above $500,000, and you can request one anyway.

3. Payoff at closing. The new lender pays off the old mortgage from line proceeds and records itself in first position.

4. Opening draw. The payoff is your first draw. Because at least 75% of the line must be drawn at closing, a small mortgage can force you to take extra cash on day one.

5. Draw period. You pull money out by transfer, check, or card, depending on the plan. Each later draw after closing carries a $1,000 minimum on the longer-draw structure described below.

6. Repayment period. The draw period ends and the balance amortizes, meaning it is paid down on a schedule.

The CFPB HELOC brochure confirms the general pattern. Some plans require an initial draw when the line opens. Some require a minimum amount each time you draw. Payments on a variable-rate line can change even if you borrow nothing more. The brochure also notes that repayment often runs over ten or 15 years.

A worked example in percentages

Say you own a rental and the existing mortgage equals 60% of its value. You apply for an investment-property line at the 70% CLTV ceiling.

The payoff uses 60 points of value. That is about 86% of the line, which clears the 75% closing-draw minimum. About 10 points of value remain as undrawn credit.

That remainder is your usable cash. You can take it for repairs or a down payment on the next purchase, then repay and borrow again during the draw period. If the old mortgage had been only 40% of value, the 75% rule would force a larger draw at closing. The extra money would be in your account, accruing interest, whether you needed it or not.

How do the draw and repayment periods behave?

Primary residences and second homes have two structures on this network. One is a 3-year interest-only draw followed by a 17-year fully amortizing repayment. The other is a 5-year interest-only draw followed by a 25-year repayment. Investment-property lines use the 5-year draw and 25-year repayment structure only.

During the draw, payments can be interest-only. That keeps the monthly carry low. The catch comes when repayment starts, because the balance must then be paid down over the remaining term. Payments step up, and they float the whole way because pricing never converts to fixed.

That is the payment-shock risk. Interest-only feels light for years, then principal arrives. Budget for the repayment-phase payment on day one, not for the draw-phase payment.

How is this different from a DSCR cash-out refinance?

A first-lien line is underwritten to you. A DSCR cash-out refinance qualifies primarily on property-level rental income covering the payment, subject to lender guidelines. That difference drives almost everything else. DSCR stands for debt service coverage ratio, which is the property’s rent divided by its full monthly housing payment (principal, interest, taxes, insurance, and any HOA dues).

*Subject to lender program eligibility.

The DSCR side of that table is worth knowing in more detail. On a standard rental, cash-out refinances top out around 75% LTV across most of the network, with about six months of seasoning as the common expectation. Loan sizes run up to $3,000,000 on standard programs (smaller balances available through select lenders). Many programs want a score near 660, and 700 or better unlocks the strongest leverage tiers. Coverage of 1.00 is where select programs start. A separate select-lender path takes coverage below 1.00 with leverage and terms adjusted. For the full picture, see the complete DSCR loans guide. Every figure here varies by lender and program — guidelines, property type, leverage, and credit profile all apply.

Clearing 1.00 does not mean positive cash flow. Repairs, vacancy, management, utilities, and capital expenses all sit outside the calculation.

What does the network require for a first-lien line?

Treat these as eligibility ranges, not promises. Every file is reviewed individually, and figures are subject to lender guidelines.

• Investment property: up to 70% CLTV, a 700 minimum score, and a $500,000 maximum line. There is no tier above that.
• Primary residence: ceilings reach 90% CLTV only at a 720 score, with that tier capped at $500,000. Lower scores step down the ladder.
• Second home: the ceiling also reaches 90% CLTV at 720 or better, with a 640 minimum score.
• Lines above $500,000: primary residences only, with a score of 700 or better (720 on the 5-year draw structure), 75% CLTV maximum, and a full appraisal.
• DTI: 50% maximum, or 45% for scores from 600 to 679. The payment is tested on the interest-only amount at the maximum draw.
• Property types: single-family, 2-4 units, PUDs, townhomes, and condos, including non-warrantable ones. Manufactured homes, co-ops, condotels, log homes, commercial, and mixed-use are not eligible.
• Exposure: up to three lines per borrower, and borrowers with more than 15 financed properties are not eligible.

Market surveys report that investment-property equity lines typically ask for a score of 720 or more, allow up to 80% loan-to-value, and often stay below 70%, according to NerdWallet. NerdWallet also notes the lender pool for rentals is smaller and the limits are lower than on a primary home. On this network, the investment-property figure is 70% CLTV with a 700 minimum.

Availability is narrower than the DSCR footprint. DSCR investor loans run in 41 markets, including Washington, D.C., while these equity lines are offered in a smaller set of states. Confirm eligibility for your property’s state before planning around one.

Where does the general rule break?

The product works as described until one of these edge cases applies.

Title in an LLC. The line can only be held by an individual or a revocable living trust. LLCs, corporations, partnerships, and irrevocable, blind, or land trusts cannot hold title. A property already deeded to an LLC needs a vesting change or a DSCR cash-out refinance instead. This is the sharpest structural difference from a DSCR loan.

A small mortgage. The 75% opening-draw minimum can leave almost nothing to re-borrow. If your goal is repeated draws, the math may not leave room.

A mortgage you cannot afford to replace. Giving up an existing fixed payment for a floating one is a real trade. It deserves a side-by-side look, not just a payoff.

A DSCR first loan you want to keep. A first-lien line replaces that loan, so it does not apply. If you want to keep it and add a line behind it, read the first note for restrictions on junior liens, and check for a prepayment penalty. Lendmire’s piece Variable HELOC vs Fixed Cash-Out Behind a DSCR First Lien covers that structure.

Credit history. A bankruptcy needs four years of seasoning from discharge or dismissal. Foreclosure history is handled differently by program. Some seasoning paths run seven years for a foreclosure and four for a short sale or deed-in-lieu, and some decline the history regardless of age.

Business-purpose lending in one paragraph

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. A first-lien line on a rental is typically still underwritten to you personally, so expect a personal credit and DTI review.

Who this fits, and who it does not

A first-lien line tends to fit an individual owner with strong credit, a modest mortgage balance, and a rental held in their own name or a revocable trust. It also fits the owner of a free-and-clear property who wants a reusable pool of equity. Reserves, repairs, and the next down payment are the usual uses.

It tends to fit poorly when the rental sits in an LLC, when rates on your current loan are fixed and you value that certainty, or when you plan to scale a portfolio. HELOC underwriting is borrower-level, so every new line draws on your personal profile and exposure. DSCR underwriting is property-level, so it scales better as you add rentals. Lendmire’s article How a Low First-Lien Mortgage Changes the Cash-Out vs HELOC Math walks through the comparison when the existing loan is small.

The decision often comes down to this. Do you want revolving access to a modest amount of equity at personal-profile underwriting? Or do you want a lump sum underwritten to the property, with fixed structures and options like 40-year terms and interest-only periods through select lenders? The strongest files clear two tests: enough equity and enough rental coverage.

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

Key Terms Defined

First lien: the loan that gets paid first if the property is sold or foreclosed.

HELOC: a home equity line of credit, which lets you borrow, repay, and borrow again up to a limit.

CLTV: combined loan-to-value, which is all loans against the property divided by its value.

Draw period: the stretch when you can pull money from the line, often with interest-only payments.

Repayment period: the stretch after the draw ends, when the balance amortizes on a set schedule.

Vesting: the name or entity that legally holds title to the property.

DSCR: the property’s rent divided by its full monthly housing payment.

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. Reach out at 828-256-2183.

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. CFPB HELOC brochure

2. NerdWallet, HELOC on investment property