The Quick Read: Lenders can write a home equity line behind the mortgage on the home you live in, and your first mortgage stays exactly as it is. The new line is a second lien. Lendmire is a mortgage broker, so it does not rank or name banks. It matches your file to wholesale lenders whose programs fit your equity, credit, and property.
- You do not have to use the lender that holds your first mortgage.
- The lender adds your first-mortgage balance and the new line, then tests that total against your home’s value.
- On a primary residence, the network’s ceiling reaches 90% combined loan-to-value only at a 720-or-better credit profile, and only up to a $500,000 line.
- Investment-property lines top out at 70% combined loan-to-value, and any line above $500,000 is for primary residences only.
- If you are borrowing to buy a rental, the line and the rental’s DSCR loan are two separate approvals.
How Lenders Treat Your Existing Mortgage, Step by Step
Your existing mortgage does not block a line. It shrinks the room available. The lender subtracts what you owe from what the home can support, and the rest is your potential line.
How large a line the equity supports.
An equity line is sized by combined loan-to-value, occupancy, and credit — not by rental coverage. Switch the occupancy or the credit band and the ceiling moves with it.
Investment-property lines require a 700 minimum credit score; second-home lines start at a 640 minimum and primary-residence lines at 600, and the combined-LTV ceiling steps down as the credit band drops on primary-residence and second-home lines and holds on investment-property lines; the line cap steps down on primary-residence lines and holds at every tier on investment-property and second-home lines.
A debt-to-income ratio above 45% requires 680+ credit. Profiles under 640 are limited to single-family homes. At least 75% of the approved line is drawn at closing. Ceilings, floors, and caps update from Lendmire’s centralized guideline source.
Line estimate
Illustrative estimate only — not a quote, Loan Estimate, approval, or commitment to lend. The rate is an editable assumption; equity-line pricing is variable through both the draw and repayment periods and never converts to fixed. Occupancy and credit drive the ceiling together: an investment property tops out at 70% combined LTV (minimum credit 700, line cap $500,000); a second home tops out at 90% combined LTV (minimum credit 640, line cap $500,000), with the ceiling stepping down as the credit band drops (the cap holds at every tier); a primary residence tops out at 90% combined LTV (minimum credit 600), and its $750,000 maximum line is available only at 75% combined LTV or below with a 700-or-better credit profile (720 on the longer-runway program) and a full appraisal. Lines above $500,000 require a full appraisal. Credit, debt-to-income, property type, and full underwriting review all affect the final line.
1. Establish value. On lines at or below $500,000, the lender ordinarily runs an automated valuation instead of a traditional appraisal. A higher combined leverage request may trigger a secondary valuation. Every line above $500,000 requires a full appraisal, and you can ask for a full appraisal on any line.
2. Total the liens. The lender adds your first-mortgage balance, any existing second lien, and the new line. Lenders generally count the full line limit, not just the amount you draw.
3. Apply the combined loan-to-value cap. The cap depends on your credit tier, occupancy, and line size. A low first-mortgage payment does not create room. Only balance and value do.
4. Underwrite you. Unlike a DSCR loan, a home equity line is reviewed on your personal profile. Maximum debt-to-income is 50%, but it drops to 45% for credit profiles from 600 to 679. Any ratio above 45% therefore requires at least a 680. The lender reviews your file on the interest-only payment calculated on the maximum draw, not on what you plan to borrow.
5. Check credit. The network’s floor is 600. The score model is a single-bureau score keyed to the primary wage earner. The report can be no more than 90 days old at closing, and rescores are not available.
6. Confirm title and property. Title must sit with you as an individual or in a revocable living trust. The property must be an eligible type.
7. Record the lien. The line is recorded as a standalone line, in first or second position.
Experian explains that combined loan-to-value counts every obligation secured by the home, not just the first mortgage. That is the whole game.
Key Terms Defined
Second lien: A loan recorded behind your first mortgage. If the home is sold to pay debts, the first lender is repaid first.
Combined loan-to-value (CLTV): Your first mortgage balance plus the new line, divided by the home’s value.
HELOC: A home equity line of credit. It lets you borrow against your equity in draws instead of taking one lump sum.
Draw period: The stretch when you can borrow, usually paying interest only.
Repayment period: The stretch after the draw ends, when the balance fully amortizes.
Subordination: A second-lien lender agreeing to stay behind a new first mortgage when you refinance.
DSCR: Debt service coverage ratio. For a rental loan, it compares the property’s rent to its full monthly obligation of principal, interest, taxes, insurance, and any HOA dues (together, PITIA).
Who Writes These Lines?
Several kinds of lenders write home equity lines on primary homes. Which one fits depends on your situation, not on a ranking.
| Lender type | Where it tends to fit | Where files can stall |
|---|---|---|
| Large retail banks | Standard single-family homes | Narrow property and vesting rules |
| Credit unions, regional banks | Existing relationships, modest lines | Often limited to primary residences |
| Online lenders | Straightforward files | Fewer options for unusual properties |
| Broker with a wholesale network | Condos, 2-4 units, trust vesting, higher leverage | Files outside the network’s eligible states or property types |
Investor-education coverage backs up the limit on rentals. A BiggerPockets episode on using home equity says banks often restrict HELOCs to primary residences. That is one reason investors tap the home they live in.
A broker changes the search, not the rules. Lendmire shops a multi-state network of wholesale HELOC lenders and matches your property, equity, and credit to the program that fits. The best program for your situation depends on your credit profile, the leverage you need, and the property type. Large lenders and credit unions each have their own menus, and the lenders that write your file depend on those details.
One limit to know up front. Lendmire’s home equity line product is available in 16 states: AL, CA, CO, FL, GA, IN, MI, MT, NM, NC, OH, PA, TN, TX, VA, and WA. That is narrower than the 41-market footprint for its DSCR loans.
What the Numbers Look Like on a Primary Residence
On a primary residence, the maximum CLTV climbs with your credit score. Here is how it stacks up across the network’s primary-residence matrix, subject to lender guidelines and full file review.
| Credit score | Max CLTV (primary residence) | Line cap at that tier |
|---|---|---|
| 720+ | 90% | $500,000 |
| 700 to 719 | 85% | $500,000 |
| 660 to 699 | 85% | $500,000 |
| 640 to 659 | 80% | $500,000 |
| 620 to 639 | 70% | $400,000 |
| 600 to 619 | 60% | $400,000 |
There is a tradeoff at the top. A 720 score gets you 90% CLTV up to $500,000. If you want a bigger line, up to $750,000, the CLTV drops to 75%. That larger line opens at a 700-or-better credit profile. It also requires a full appraisal, and it is available on a primary residence only. The table shows the $500,000 tier caps, so the $750,000 line is a separate 75% option rather than a row in it.
Run it in percentages. Say your first mortgage equals 55% of your home’s value and you hold a 720 score. At a 90% ceiling, the room is 35 points of value. The $500,000 line cap may bind first on a pricier home. On a lower-scoring file at 80% CLTV, the same first mortgage leaves 25 points. Your first-mortgage balance moves the answer more than almost anything else.
Second homes and investment properties follow different tables. On a second home, the ceiling also reaches 90% CLTV, only at a 720-or-better profile, and the credit floor is 640. On an investment property, the ceiling is 70% CLTV and the credit floor is 700. Those are separate tiers from the primary-residence matrix, not an extension of it.
How the Line Is Structured
This is a standalone line, written in first or second lien position. It is not a modification of your first mortgage.
Two draw structures exist on primary residences and second homes. Here they are by what they do:
- A higher-leverage program has a 3-year interest-only draw followed by a 17-year fully amortizing repayment.
- A longer-runway program has a 5-year interest-only draw followed by a 25-year fully amortizing repayment.
Investment lines run the 5-year draw and 25-year repayment structure only. In Tennessee, both primary structures are shortened (3-year/12-year and 5-year/10-year).
Three structural facts surprise people:
- At least 75% of the line is drawn at closing. This is not a line you open and leave idle.
- Pricing floats through both the draw and repayment periods. It never converts to fixed.
- After closing, the minimum subsequent draw is $1,000 on the longer-runway program (Texas is $4,000).
The CFPB describes a typical HELOC as an open-end line that borrowers can use repeatedly, often with a fixed-rate conversion option. That is a retail bank feature. In this network, the line does not convert.
Each program also has its own credit-history tests. The longer-runway program requires two tradelines seasoned 12 months, or one seasoned 24. Its housing history requires 0x30x6 and 1x30x12 at 640 and above, and 0x30x12 from 600 to 639. A bankruptcy needs 4 years of seasoning from discharge or dismissal on both programs.
A Second Lien Changes Your First Mortgage Less Than You Think
Your first-mortgage rate, term, and balance stay put. The CFPB explains that a HELOC is a second mortgage when you already have a mortgage, and you pay it in addition to the first. Two practical effects follow.
First, the new lender reviews your existing mortgage, because that payment counts in your debt-to-income ratio. Second, the new lien sits behind the first, so if equity runs short in a forced sale, the second lender takes the loss first. That risk is why second liens price differently than first mortgages.
You also carry the risk. Payments float, and the home is the collateral. A lender can reduce or freeze a line if the home’s value falls substantially. Plan around that possibility, not on an assumption that the line will always be there.
Where the General Rule Breaks
The basic answer is yes. Here is where it turns into “not on this file.”
Property type. Eligible properties include single-family, 2-4 units, PUDs, townhomes, and condominiums, including non-warrantable condos. On the longer-runway program, 2-4 units need a 640 minimum. Modular factory-built homes are eligible on the longer-runway program only. Manufactured homes, co-ops, condotels, log homes, commercial, mixed-use, and agriculturally zoned properties are not eligible on either program.
Title. The line must sit on a property held by you personally or in a revocable living trust. LLCs, corporations, partnerships, and irrevocable, blind, or land trusts cannot hold title, subject to program terms. If your home is deeded to an LLC, you either change vesting first or use a DSCR cash-out refinance instead.
Existing second lien. A line behind an existing second lien becomes a third lien. Lenders generally treat third liens as a harder fit, and every recorded lien uses up CLTV room. The existing second may need to be paid off at closing.
Refinancing later. If you refinance your first mortgage after opening a line, the new first lender typically requires the line to be subordinated or paid off. This is a real friction point for investors planning to refinance.
Credit gates. Business bank accounts for deposit analysis need a 680 minimum. The primary-residence floor is 600, so a borrower scoring between 600 and 679 can qualify for the line but cannot use business accounts. A 640 borrower is one example.
Foreclosure history. Primary residences and second homes split here. One program seasons a foreclosure at 7 years and a deed-in-lieu, pre-foreclosure, or short sale at 4. The other declines that history entirely, regardless of age.
Exposure limits. A borrower is limited to three lines. Combined exposure caps at $2,000,000 on the higher-leverage program. On the longer-runway program, the cap is $750,000. A borrower owning more than 15 financed properties is not eligible.
State rules. Texas primary residences are homesteads and cap at 80% combined loan-to-value, so the higher matrix tiers never apply. In Indiana, North Carolina, Pennsylvania, Tennessee, Texas, and Washington, a property listed for sale, or listed within the past 60 days, is ineligible. New Mexico and Ohio apply a CLTV cap that depends on the credit profile.
Sub-640 profiles. Under the longer-runway program, these are limited to single-family residences with a clean 12-month housing history. That restriction reaches primary residences only, because second homes floor at 640 and investment at 700.
Using the Line to Buy a Rental: What the Decision Looks Like
Most investors reading this are asking a bigger question: can the equity in my home fund a rental? It can. The two loans work separately.
The line is underwritten on you. The DSCR loan on the rental qualifies primarily on property-level rental income covering the payment, subject to lender guidelines. Your complete DSCR loans guide covers the full mechanics. In short, DSCR compares rent to PITIA only. The line’s payment sits outside that ratio, but it does not sit outside your budget.
That distinction matters because clearing 1.00 is not the same as positive cash flow. Repairs, vacancy, management, utilities, and capital expenses all sit outside the calculation. So does the payment on your line. Run the rental’s full costs and the line payment together before you commit.
- Purchases typically land at 75% to 80% LTV, which means 20% to 25% down. Select programs reach 85% LTV with roughly a 700 or better score.
- 1.00 is where many select programs start. A separate select-lender path takes coverage below 1.00, with leverage and terms adjusted.
- Credit floors vary. Many programs want around 660, and 700 or better unlocks the strongest leverage tiers.
- Reserves commonly run around 6 months of PITIA, though they vary by lender, leverage, loan size, and transaction type.
Whether borrowed line proceeds count toward your down payment, closing costs, or reserves is up to the lender on the purchase. Treatment can differ by category and by program, so settle that question before you draw.
Think about the exit too. An equity line suits a short holding period better than permanent leverage, for example a purchase you plan to refinance into a DSCR loan on the rental. A line is a weak choice if the rental cannot support its own debt without refinancing. A DSCR cash-out refinance on an existing rental tops out around 75% LTV, with about 6 months of seasoning as the common expectation. The exact numbers vary by lender and program and follow a full review of property, leverage, and credit.
Frequently Asked Questions
Do I need to use the bank that holds my first mortgage?
No. The line is a separate loan, and any lender whose program fits your file can write it. Your current lender stays in first position. The new lender will review your existing mortgage balance and payment as part of its combined leverage and debt-to-income checks.
How much can I borrow with an existing mortgage on a primary home?
It depends on your credit tier, your first-mortgage balance, and your home’s value. At a 720-or-better profile, the ceiling reaches 90% CLTV up to a $500,000 line. A larger line, up to $750,000, drops to 75% CLTV. Every figure is subject to lender guidelines and full file review.
Can I use a line on my primary home to buy a rental?
Yes, in many cases. The line is approved on your personal profile, and the rental’s DSCR loan is a separate approval. The purchase lender decides how borrowed funds count toward down payment, closing costs, or reserves. Include the line’s payment in your own cash-flow test.
Can I get the same kind of line on a rental property?
Yes, with tighter limits. Investment lines carry a 700 credit minimum, a 70% CLTV ceiling, and the 5-year draw and 25-year repayment structure only. A line above $500,000 is for primary residences only.
What happens to my line if I refinance my first mortgage?
The new first lender generally needs the line either subordinated or paid off. Subordination requires the line’s lender to agree to stay behind the new loan. Check this before you refinance, especially if the line is drawn near its limit.
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 arranges these lines through select wholesale lenders and is not the lender; every file is reviewed individually.
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.
Get Started
Ready to find the right loan for you?
See your offer in seconds. No credit pull, no obligation.
Informational only. Not a Loan Estimate, approval, or commitment to lend. Program availability and eligibility are subject to lender guidelines, credit approval, property review, and underwriting.
References
2. BiggerPockets – Ways to use home equity
4. CFPB – HELOC vs home equity loan
This article is part of Lendmire’s HELOC & home equity loan program — full qualification details, guidelines, and scenarios live on the program page.
Related reading: DSCR HELOC Requirements If the Home Will Be Listed Soon · Banks That Offer a HELOC With an Initial Draw at Closing · Banks That Offer a DSCR HELOC for Landlords Whose Own Bank Says No
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
- Mortgage Loan Originator · NMLS# 1129696 · Verify on NMLS Consumer Access
- North Carolina Real Estate Broker · License# 343312 · Verify on NCREC
- North Carolina Insurance Producer · License# 19053198 · Property, Casualty, Life, Health · Verify on NAIC SBS
- Lendmire LLC · Firm NMLS# 2371349 · Verify firm licensure
Disclosure information. Lendmire is a state-licensed mortgage brokerage under NMLS# 2371349. Lendmire is not a depository institution, direct lender, or financial advisor — all loans referenced are placed through wholesale lender partners and are subject to each lender's underwriting standards. This article is provided for general informational purposes and is not a commitment to lend, nor does it constitute financial, legal, or tax advice. Loan programs, terms, rates, and qualification standards change without notice and depend on borrower profile, property type, and the state in which the subject property is located. Equal Housing Opportunity provider. NMLS Consumer Access: nmlsconsumeraccess.org.