The Quick Read: Combined loan-to-value adds your first mortgage and the full new credit line, then divides by the home’s value. On a primary residence, the network Lendmire places files with sets that ceiling between 60% and 90% by credit tier, with the 90% tier reserved for 720-or-better borrowers.
- No single national cap exists. Each lender sets its own, so the same house can support very different lines at different lenders.
- On a primary residence, the ceiling steps down with credit: 90% at 720 or better, 85% from 660 to 719, 80% at 640, and lower below that.
- The full credit limit counts toward the cap. Planning to draw less does not create room.
- An investment property sits on a lower ceiling: 70% combined, with no higher tier.
- A home equity line and a DSCR loan are judged on different things. Pairing them takes planning.
What Combined LTV Actually Measures
Combined loan-to-value (CLTV) is the total of every loan secured by the home, divided by what the home is worth. Plain loan-to-value looks at one loan. Combined looks at the whole stack.
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.
The stack has three layers: the first mortgage, any existing second lien, and the new line. The standard formula, which Experian’s CLTV explainer lays out the same way, is first mortgage balance plus the new credit limit plus other liens, all divided by appraised value.
The lender’s cap turns that formula around. Your maximum line is the cap times the home’s value, minus what you already owe.
Run it with a modeled home where the first mortgage equals 50% of value:
- At an 85% ceiling, the line can use up to 35% of the home’s value.
- At a 90% ceiling, up to 40%.
- At a 75% ceiling, up to 25%.
- At a 60% ceiling, only 10%.
Same house, same balance. The credit tier alone moves the line by a wide margin. And if you already owe more than the cap allows, capacity is zero. Not ideal, but it happens.
What the Network Allows on a Primary Residence
On a primary residence, the ceiling depends on your credit score and how large a line you want. The program ceiling is 90% combined, and that figure applies only at a 720-or-better credit profile. Lendmire is a broker. It arranges these lines through select wholesale partners, subject to lender guidelines and full file review.
Two wholesale programs sit behind the figures below. One is built for higher leverage, and the other for a longer interest-only runway. Where they differ, each number applies only within its own program’s terms.
| Credit score | Max combined LTV | Max line at that tier |
|---|---|---|
| 720+ | 90% | $500,000 |
| 720+ | 75% | $750,000 |
| 700+ | 85% | $500,000 |
| 700+ | 75% | $750,000 |
| 660-699 | 85% | $500,000 |
| 640+ | 80% | $500,000 |
| 620+ | 70% | $400,000 |
| 600+ | 60% | $400,000 |
The 680 tier also sits at 85% up to $500,000. These are primary-residence figures only. Line sizes run from $25,000 to $750,000, and the minimum credit score is 600.
Look at the 720 rows. That is a tradeoff, not one answer. You can take 90% combined on a line up to $500,000, or a bigger line up to $750,000 at a reduced 75%. A larger line costs you leverage.
Market surveys often report typical home equity ceilings around 85%, per Academy Bank’s CLTV overview. That is a market-wide figure. On this network, the primary-residence ceiling is the tier table above, and 90% appears only at 720 or better.
Key Terms Defined
Combined loan-to-value (CLTV): all loans secured by the home, divided by its value.
HELOC: a home equity line of credit, which works like a credit card secured by your house. You borrow, repay, and borrow again during the draw period.
Draw period: the stretch when you can borrow and pay interest only. Nothing goes toward principal.
Repayment period: the later stretch when the balance amortizes, meaning each payment includes principal.
Lien position: your place in line if the home is sold to pay debts. A first lien gets paid first.
DSCR: debt service coverage ratio, the rent divided by the full monthly housing obligation on an investment property. It is used on rental loans, not on home equity lines.
Subordinate lien: any loan behind the first mortgage, such as a second mortgage or a line sitting in second position.
The Line Counts, Not the Draw
Lenders test CLTV against the full credit limit. Drawing less than the limit does not create room under the cap. If you ask for a $300,000 line, the whole $300,000 goes into the math, no matter how much you borrow afterward.
On this network, at least 75% of the line is drawn at closing. So “I’ll open it big and use a little” does not work as a plan. Pricing floats across both the draw and repayment periods and never converts to fixed. A quoted figure always carries its own program’s structure.
Income testing follows the same logic. Maximum DTI (debt-to-income, your monthly debts against your monthly income) is 50%, and 45% for credit profiles from 600 to 679. A ratio above 45% requires a 680 minimum. The test uses the interest-only payment on the maximum draw. A line passes the equity test, then can still fail the income test.
Here is the structure on primary residences and second homes:
- Draw structures: a 3-year interest-only draw with a 17-year repayment, or a 5-year interest-only draw with a 25-year repayment.
- Investment lines: the 5-year draw with 25-year repayment only.
- Position: a standalone line in first or second lien position.
- Minimum subsequent draw: $1,000 after closing, where the program states one.
Who Sets the Cap?
Each lender does. The federal banking agencies’ interagency guidelines on real estate lending tell banks to set their own internal loan-to-value limits. The guidelines set supervisory limits for other loan types, but they set no loan-to-value limit for permanent mortgage or home equity loans on owner-occupied one-to-four-family homes.
There is one trigger. When such a loan reaches 90% or more at origination, the institution should require credit enhancement, such as mortgage insurance or readily marketable collateral. The same language appears in the Cornell Legal Information Institute copy of the FDIC rule.
That is guidance, not a statute. It explains why many bank caps stop short of 90%, and why a ceiling at 90% needs a strong credit profile behind it. The real number is always the lender’s own policy.
Large retail lenders, credit unions and wholesale-sourced programs set different ceilings. That is the practical edge a broker has: you see many guidelines, so you can match the file to the lender whose cap fits.
Where the General Rule Breaks
The tier table is the rule. These are the named exceptions that change it.
State overlays. A primary residence in Texas is a homestead and caps at 80% combined, so the higher matrix tiers never apply there. New Mexico and Ohio apply a cap that depends on the credit profile. The 16 states where this program is available are AL, CA, CO, FL, GA, IN, MI, MT, NM, NC, OH, PA, TN, TX, VA and WA. That is narrower than Lendmire’s 41-market DSCR footprint.
Line size above $500,000. Lines above $500,000 are primary-residence only. They cap at 75% combined, require a full appraisal, and need a credit profile of 700 or better (720 on the longer-runway program).
How value is set. Lines at or below $500,000 ordinarily run automated valuation with no traditional appraisal. A higher CLTV may require a second valuation, and you can always request a full appraisal. A low value hits twice. Say a first mortgage equals 50% of the original value and the new value comes in 10% lower. That balance becomes roughly 56% of the lower number. The room under an 85% ceiling drops from 35% to about 29% of the new value.
Title and vesting. The home must be held by you personally or by 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 first, or a DSCR cash-out instead.
Property type. Eligible: single-family, two-to-four-unit (640 minimum on the longer-runway program), PUD, townhome, and condos, including non-warrantable ones. Not eligible: manufactured homes, co-ops, condotels, log homes, commercial or mixed-use, and agricultural zoning.
Credit history. A bankruptcy needs 4 years of seasoning from discharge or dismissal. Foreclosure history splits. One program seasons a foreclosure at 7 years and a deed-in-lieu or short sale at 4. The other declines the history regardless of age. Business bank accounts for deposit analysis require a 680 minimum, which is a real gate when the floor on a primary is 600.
Exposure. A borrower is limited to three lines. Combined exposure caps at $2,000,000 on the higher-leverage program and $750,000 on the longer-runway program. Owning more than 15 financed properties makes you ineligible.
Renting the home out. The CFPB’s HELOC booklet warns that renting your home may be prohibited under the terms of your line. Plan to move out and rent it? Read the line’s terms first. The same booklet notes that repayment is often required when you sell.
If the Cap Leaves You Short
When the math comes back smaller than the line you wanted, you have four levers:
1. Shrink the request. Ask for what the cap allows, not what the wish list says.
2. Pay down the first mortgage. Every dollar off the balance opens room under the ceiling.
3. Move up a credit tier. Moving from the 640 tier to the 660 tier lifts the ceiling from 80% to 85% on a primary residence. Moving to 720 opens the 90% tier. A rescore does not apply here, since these programs use a single-bureau score model keyed to the primary wage earner and no rescores.
4. Wait for value. Appreciation or a full appraisal that comes in higher both widen the gap.
Check your first mortgage using a current payoff figure, not the original loan amount. Stale balances are a common reason a hoped-for line comes in smaller.
Using a Primary-Home Line for a DSCR Down Payment
Many investors open a line on their home to fund the down payment on a rental. The two loans answer different questions. The line is judged on you and your home: credit, income, DTI and CLTV. A DSCR loan is reviewed primarily on property-level rental income covering the payment, subject to lender guidelines.
Here is the DSCR side, as the wholesale network Lendmire works with generally treats it:
- Purchase leverage: most files land at 75%-80% LTV, which means 20%-25% down. Select high-leverage programs reach 85% LTV at roughly a 700-plus score.
- Cash-out refinance: tops out around 75% LTV, with about 6 months of seasoning as the common expectation.
- Coverage: 1.00 is where many select programs start. A separate select-lender path takes coverage below 1.00, with leverage and terms adjusted.
- Credit: most programs want around 660, and 700 or better unlocks the strongest leverage tiers.
The strongest files clear both tests: enough equity and enough rental coverage. A bigger down payment can lift the coverage ratio, but it never erases leverage caps, credit floors, reserve rules or property eligibility.
Three cautions. First, DSCR compares rent to the full monthly obligation: principal, interest, taxes, insurance and any HOA dues. Clearing 1.00 is not positive cash flow. Repairs, vacancy, management and utilities sit outside the calculation.
Second, a line on your home adds a second payment to your life while the new rental carries its own. Borrowed funds sometimes raise questions inside a DSCR program, and acceptance varies by program and lender. Ask before you open or draw the line, not after.
Third, do not confuse the two ceilings. A line against a rental property tops out at 70% combined on this network, with a minimum 700 credit profile and only the 5-year draw structure. A primary home can reach 90% at 720. That gap is why investors usually look to the primary residence.
Tax treatment varies by how the funds are used and how the property is held, so consult a qualified tax professional before relying on any deduction.
If you are already comfortable with the DSCR side, Lendmire’s complete DSCR loans guide covers what the purchase or refinance underwriting looks for.
Running the Numbers on Your Own Home
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 the team at 828-256-2183 or request a quote. The site’s calculator is an illustrative estimate, not a quote. Every file is underwritten individually, and nothing here is a commitment to lend.
Frequently Asked Questions
Is the CLTV limit the same as the amount I can borrow?
No. The cap applies to all liens combined, not to the line alone. Your line is the cap times the home’s value, minus what you owe on the first mortgage and any other liens. A 90% ceiling does not mean 90% of your value as a line.
Does my credit score change the limit on a primary home?
Yes. On this network, the combined ceiling on a primary residence steps up as credit score tiers improve, so a higher score generally allows a higher combined limit. Score also affects DTI limits and which line sizes are open. Terms are subject to lender guidelines.
Can I use a primary-home line to buy a rental?
Many investors do, but whether a DSCR program accepts borrowed down-payment funds varies by program and lender. Both loans carry their own approval. Ask the DSCR lender before opening the line.
What if my home is in an LLC?
An LLC cannot hold title on these lines. The home must be held by you individually or in a revocable living trust. A property already in an LLC needs a vesting change first, or a DSCR cash-out refinance instead.
Why is the cap lower on a rental property?
Lenders see greater risk on non-owner-occupied collateral. On this network, an investment line is capped at 70% combined with no higher tier, while a primary residence can reach 90% at 720 or better.
For current guidelines and terms, see Lendmire’s HELOC programs page.
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.
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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. Academy Bank – Understanding Loan-to-Value Ratio
3. Federal Reserve – Interagency Guidelines on Real Estate Lending Policies
4. Cornell Legal Information Institute – 12 CFR Part 365, Appendix A
5. CFPB – What You Should Know About Home Equity Lines of Credit
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: Can You Open a HELOC on Your Primary Home Without Refinancing? · Online HELOC Application Requirements for a Primary Home · Can You Buy a Second Home Using a HELOC on Your Current Home?
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
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- Lendmire LLC · Firm NMLS# 2371349 · Verify firm licensure
Disclosures. The information presented in this article is general market commentary, not financial, legal, or tax advice. Lendmire is a mortgage brokerage (NMLS# 2371349) — not a direct lender or depository institution — and loan placement is subject to lender underwriting. Nothing in this content represents a commitment to lend. Loan terms, pricing, and program availability vary based on borrower qualifications, property characteristics, and state of subject property, and are subject to change at any time. Lendmire complies with Equal Housing Opportunity requirements. Consumer access: nmlsconsumeraccess.org.