The Quick Read: A lender caps the total of all loans on a property as a percentage of its value, and that cap decides how much a new equity line or loan can add. The formula is value times the cap, minus what you already owe. On our network, the cap depends first on how the property is used.
- On an investment property, the network ceiling is 70% combined loan-to-value, with a 700 minimum credit score and a $500,000 maximum line.
- On a primary residence or second home, the ceiling reaches 90%, and only at a 720-or-better credit profile.
- Every lien counts: the first mortgage, any existing second, and the new line or loan.
- The final limit is the smallest of three tests: the percentage cap, the dollar cap, and your debt-to-income ratio.
- A recent purchase at 75%-80% leverage often leaves no room under an investment cap until you pay down or the value rises.
Equity and borrowing power are not the same thing. That gap catches many investors off guard. Lendmire brokers these lines through select wholesale partners, so the sections below show how the cap works across several lenders’ guidelines. Each figure is subject to lender guidelines and full file review, and none is a commitment to lend.
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.
Key Terms Defined
Combined loan-to-value (CLTV): The total of every loan secured by the property, divided by the property’s value.
Loan-to-value (LTV): The same ratio, but counting only one loan, usually the first mortgage.
HELOC: A home equity line of credit, which is a revolving line you draw from as needed against the property.
Home equity loan: A lump-sum loan with a fixed amount, repaid on a set schedule.
Lien position: Where a loan stands in line for repayment. A first lien gets paid before a second.
Debt-to-income ratio (DTI): Your monthly debt obligations divided by your monthly income.
What Does the Combined Limit Actually Measure?
It measures how much of the property’s value is already spoken for by debt. Add every lien, including the new one, then divide by value. Experian walks through the same formula with a first mortgage at 70% of value and a new loan at 10% of value. That lands at an 80% combined ratio.
Plain LTV looks at one loan. Combined LTV looks at the whole stack. Bankrate’s glossary also describes a stricter cousin, home equity combined LTV, which counts the full credit limit of a line rather than only the amount drawn. On our network at least 75% of a line is drawn at closing, so the gap between limit and draw is narrow. Still, plan around the full limit.
Why do lenders set a cap at all? A cushion. If values dip, the lender still gets repaid. The cap is lender policy, not a law. Market surveys report that many lenders cap equity lines at roughly 80% to 85% on owner-occupied homes, per Yahoo Finance. The network figures differ by occupancy, and they follow next.
How Underwriting Treats the Cap, Step by Step
Underwriting runs the same sequence on nearly every file. Here is the order.
1. Value is set. For lines at or below $500,000, the network ordinarily uses an automated valuation instead of a traditional appraisal. A higher CLTV may trigger a secondary valuation. Every line above $500,000 needs a full appraisal, and you may request one on any file.
2. Liens are totaled. First mortgage balance, any existing second, plus the new line at its limit.
3. The cap is applied. Maximum total debt is value times the cap. Room for the new line is that number minus existing liens.
4. Side tests run. Credit score, DTI, property type, title and the dollar cap all sit next to the percentage test.
5. The smallest answer wins. If the percentage test says one number and the dollar cap says a smaller one, the smaller one governs.
Here is a worked case in percentages. Say your home has a first mortgage equal to 55% of its value, and you want a primary-residence line at an 85% ceiling. Total debt can reach 85% of value, so the new line can be up to 30% of value. Run the same home as an investment property and the ceiling is 70%. Now the line can be only 15% of value. Same house, half the room.
What Are the Network Ceilings by Occupancy?
The ceiling depends on how you use the property, and on your credit profile. The network’s top numbers look like this.
| Occupancy | Top ceiling | Credit needed | Max line |
|---|---|---|---|
| Primary residence | 90% CLTV | 720+ | $500,000 at 90% |
| Second home | 90% CLTV | 720+ | $500,000 |
| Investment property | 70% CLTV | 700+ | $500,000 |
Credit steps the ceiling down quickly on the owner-occupied side. On a primary residence, 700+ supports 85% up to $500,000, and 640+ supports 80%. A 620 score supports 70% up to $400,000, and a 600 score supports 60% at that same $400,000 size. Second homes start at a 640 minimum: 640+ supports 75%, 660+ supports 80%, and 680+ or 700+ supports 85%. For a closer look at that category, see Lendmire’s piece Second Home HELOC Equity Minimums and DTI Limits.
Investment lines have no tier above 70%. A 700 score and a 720 score land in the same place. Credit decides whether you qualify, not how far the cap stretches.
Lines above $500,000 are primary-residence only. They cap at 75% CLTV and need a full appraisal. The credit requirement is 700 or better (720 on the longer-runway structure described next).
Two Programs Sit Behind These Lines
Our network places lines through two wholesale programs, and their terms differ. The higher-leverage program uses a 3-year interest-only draw followed by a 17-year repayment. Investment lines run on the longer-runway structure only.
Both lines are standalone products that sit in first or second lien position. Each program has its own exposure limit. A borrower can hold up to three lines. Combined exposure caps at $2,000,000 on the higher-leverage program and $750,000 on the longer-runway program. Borrowers with more than 15 financed properties are not eligible. Quote a figure from one program and you must carry that program’s terms with it.
HELOC vs. Home Equity Loan in the Math
Both products use the same ratio. They just count differently once you look closely.
| Factor | Home equity loan | HELOC |
|---|---|---|
| Structure | Lump sum, fixed amount | Revolving line |
| Counts in CLTV at | Its balance | Often its full limit |
| Repayment | Set schedule from day one | Interest-only draw, then amortizing |
Hold both at once and the lender totals them together. Picture a first mortgage at 50% of value, an existing home equity loan at 10%, and a new line at 15%. The combined ratio is 75%. That passes a 75% primary-residence tier but fails a 70% investment ceiling.
Lien position matters too. Lines on this network sit in first or second position. A stack that would push the new line into third position is not the shape these lines take. Lenders set their own rules on that point.
Which Limit Binds First?
Three tests run side by side. Whichever is tightest sets your number.
The percentage cap binds. This is the common case. A recent purchase at 75%-80% leverage already sits above a 70% investment ceiling. There is no room until you pay down or value rises. Not ideal, but it is simple arithmetic. These specifics are subject to lender guidelines and a full review of property, leverage, and credit.
The dollar cap binds. Take a lightly mortgaged, high-value investment property. The percentage test might allow far more than $500,000. The line still tops out at $500,000, because that is the investment maximum.
DTI binds. The network allows a 50% maximum DTI, and 45% for credit profiles from 600 to 679. A ratio above 45% needs a 680 minimum. The payment is figured on the interest-only amount at the maximum draw, not at what you actually plan to borrow. Plenty of equity, and still no line.
Where the General Rule Breaks
Several edge cases change the answer. Know them before you apply.
Title and vesting. Title must be held by the individual borrower or an inter vivos revocable living trust. LLCs, corporations, partnerships, and irrevocable, blind, or land trusts cannot hold title. That is the sharpest structural difference from a DSCR loan, where an LLC borrower can work subject to lender program eligibility. A property already deeded to an LLC needs a vesting change or a DSCR cash-out instead.
Property type. Eligible: single-family, 2-4 units, PUD, townhome and condominium, including non-warrantable condos. Not offered: manufactured homes, co-ops, condotels, log homes, commercial, mixed-use or agricultural-zoned property. On the longer-runway program, 2-4 units need a 640 minimum score.
Rules that lower a primary-residence cap. Some states layer on their own limits for primary homes, and a few shave the ceiling or set waiting periods. These lines are also available in a narrower set of states than Lendmire’s DSCR footprint of 41 markets, including Washington, D.C.
Renting out a home that secures a line. The CFPB’s HELOC booklet says you can typically borrow up to a set percentage of your equity. It also warns that line terms may prohibit renting the home out to others. Convert a primary home into a rental later and you may be in breach.
Value is a moving input. Appraised or automated value drives the result. A lower valuation shrinks your room dollar for dollar until the dollar cap takes over. A borrower can request a full appraisal if the automated number looks low.
Credit history. A bankruptcy needs 4 years of seasoning from discharge or dismissal. Foreclosure-family history splits by program on primary and second homes: one seasons a foreclosure in 7 years and a deed-in-lieu or short sale in 4, and the other declines the history entirely. Investment files follow the 7-and-4-year path.
HELOC or DSCR Cash-Out: What Does the Decision Look Like?
The two products answer different questions. A HELOC is underwritten on you: credit, DTI, and the equity left under the cap. A DSCR loan is reviewed primarily on property-level rental income covering the payment, subject to lender guidelines. 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.
On a DSCR cash-out refinance of a standard rental, the network tops out around 75% LTV, with about 6 months of seasoning as the common expectation. A short-term rental caps lower, at 70% on cash-out. Compare that to the 70% investment line ceiling, and the two can land close together. They behave very differently, though. A line leaves your first mortgage in place. A refinance replaces it. If your first mortgage carries terms you like, that matters. Terms depend on the lender’s guidelines, the property type, the leverage, and a full review of the credit profile.
Coverage works differently from CLTV. Many select programs start at 1.00, meaning rent covers the full monthly obligation. A separate select-lender path takes coverage below 1.00, with leverage and terms adjusted. Clearing the ratio is not the same as positive cash flow, because repairs, vacancy, management and capex sit outside the calculation. Lendmire’s complete DSCR loans guide walks through that math.
A common pattern in files like these: an investor wants to pull equity from an older rental, but the first lien was set at 75% leverage a couple of years ago. The investment line ceiling leaves little or nothing. A DSCR cash-out, which can reach higher on a standard rental, often becomes the better fit. Run both before choosing.
Using a line on your primary home to fund a down payment on a rental is common. But the home secures the debt. The CFPB describes a HELOC as open-end credit and warns that you could lose your home if you can’t repay. Tax treatment varies, so consult a qualified tax professional before relying on any deduction.
Working Backward From the Amount You Want
Flip the formula. Required CLTV equals existing liens plus the desired line, divided by value.
Say your first mortgage equals 50% of value and you want a line equal to 25% of value. That requires a 75% combined ratio. On an investment property, that fails the 70% ceiling. The most you could take is 20% of value. On a primary residence at a 720+ profile, it fits easily. Do this arithmetic before you pay for an application.
If You Are Over the Cap
Four moves help, in rough order of cost.
- Pay down the first mortgage. Every point of principal you retire is a point of room.
- Request a full appraisal. If an automated value looks low, a full appraisal can correct it, and the borrower may ask for one in any case.
- Shrink the ask. A smaller line may clear a cap that a larger one fails.
- Switch products. A DSCR cash-out or a different property’s equity may fit better.
Or wait. Appreciation shifts the ratio without you lifting a finger.
Common Misconceptions
Equity equals what I can borrow. No. Equity is value minus liens. The cap is a percentage of value, so some equity is always off-limits.
Only my draw counts. Not always.
A great score lifts any cap. Credit unlocks higher tiers on owner-occupied lines. On an investment line, 700 and 720 sit at the same 70%.
Rental income sizes a HELOC. It does not. Rent sizes a DSCR loan.
My first mortgage’s low interest hurts or helps CLTV. Only the balance counts.
Frequently Asked Questions
Can I borrow 100% of my home’s value?
No. Every lender caps the total below 100% of value to keep a cushion. On our network the highest ceiling is 90% CLTV on primary residences and second homes at a 720-or-better credit profile. Investment properties top out at 70%.
Does the full line count or just what I draw?
Many lenders measure against the full limit. On the network, at least 75% of the line is drawn at closing, so the difference is small. Size your plan to the whole limit.
Is the cap the same for a HELOC and a home equity loan?
The ratio is the same, but the lender sets the cap per product and per occupancy. What changes is the counting: a lump-sum loan counts at its balance, while a line may count at its limit. Both add to the same combined total.
Can an LLC own the property and still get an equity line?
Not on these programs. Title must sit with the individual borrower or a revocable living trust. A property held in an LLC needs a vesting change, or a DSCR cash-out may be the better route.
What if my CLTV is just a little too high?
Shrink the line, pay down the first mortgage, or request a full appraisal if the automated value seems low. A few points of principal can clear the gap.
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 the team at 828-256-2183 to talk through your file.
About Lendmire
Lendmire (NMLS# 2371349) is a mortgage broker. Home equity lines of credit — on a primary residence, a second home or an investment property — are arranged through wholesale lenders in Lendmire’s 16 full-service states, and every line is underwritten by the lender under its program guidelines. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.
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References
1. Experian – What is combined loan-to-value ratio
2. Bankrate – Combined loan-to-value ratio
3. Yahoo Finance – How much can you borrow with a HELOC
5. CFPB
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 Get a Home Equity Loan Without a Job? · Can You Apply for a HELOC or Home Equity Loan Online? · Can You Borrow Against a Rental With a Home Equity Loan or HELOC?
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
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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.