The Quick Read: The right line for a second-home down payment is the one that matches the property securing it, the equity in that property, and your credit. A HELOC only produces cash, and a separate purchase lender decides whether that cash counts toward your down payment. Across Lendmire’s wholesale network, a line on a second home reaches 90% combined loan-to-value only at a 720-or-better credit profile, and a line on an investment property tops out at 70%. Every figure here is subject to lender guidelines and full file review.
- A HELOC has no down payment rules of its own. Two lenders are involved: one opens the line, and another funds the purchase.
- Second-home lines run from 75% CLTV at a 640 score up to 90% CLTV at 720 or better, on lines up to $500,000.
- Investment-property lines cap at 70% CLTV and need a 700 score.
- On a rental purchase, the line’s payment sits outside the DSCR math, but you still pay it out of pocket.
- Borrowed funds are commonly accepted toward the down payment and closing costs, but not toward reserves.
Key Terms Defined
You will see these terms throughout. Each is defined once here.
- HELOC (home equity line of credit): a revolving credit line secured by a property you already own, which you draw from as needed.
- CLTV (combined loan-to-value): all loans secured by the property, added together, divided by its value.
- Draw period: the stretch when you can borrow from the line and pay interest only.
- Repayment period: the stretch after the draw period when the balance amortizes, meaning each payment includes principal.
- DSCR (debt service coverage ratio): monthly rent divided by the new loan’s monthly payment. DSCR loans are designed for non-owner-occupied investment properties, and they qualify primarily on property-level rental income covering the payment, subject to lender guidelines.
- PITIA: principal, interest, taxes, insurance, and any association dues, which together make up a property’s full monthly obligation.
- Reserves: liquid funds you hold after closing, usually measured in months of PITIA.
- Seasoning: how long money has sat in your account, or how long you have owned a property, before a lender counts it.
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.
Two Lenders, Two Decisions
A HELOC does not buy the second home. It puts cash in your account, and two different lenders then judge that cash from two angles.
The first lender opens the line against a property you already own. That lender cares about the collateral, the equity, and your credit. It does not care what you buy with the money.
The second lender funds the purchase. That lender decides whether borrowed money is acceptable as your down payment. It also decides what documents it wants and whether the line’s payment affects your approval.
Many borrowers assume the HELOC lender signs off on the plan. It does not. A line can be fully approved and still run into trouble if the purchase lender has rules about borrowed funds. Because a broker sees many lenders’ guidelines, this is where a broker earns the fee: matching the line to the purchase before you open anything.
Which Property Should Secure the Line?
The property securing the line sets the ceiling, so pick it first. The same borrower can face very different limits depending on occupancy.
| Collateral | Max CLTV | Credit note |
|---|---|---|
| Primary residence | 90% | Only at a 720+ profile |
| Second home | 90% | Only at a 720+ profile |
| Investment property | 70% | 700 minimum score |
The 90% figure never applies without the 720 pairing. A primary residence is the strongest collateral, but a line above $500,000 is available on a primary residence only. That larger line requires a credit profile of 700 or better (720 on the longer-runway program, covered below), caps at 75% CLTV, and needs a full appraisal.
Second-home lines step down by credit score, on lines up to $500,000:
| Credit score | Max CLTV on a second home |
|---|---|
| 720+ | 90% |
| 700+ | 85% |
| 680+ | 85% |
| 660+ | 80% |
| 640+ | 75% |
The floor on a second home is 640. A rental property you already own can secure a separate DSCR-style line, but only on a non-owner-occupied one-to-four-unit rental. It cannot sit on your own home or a second home, and it cannot be a third lien.
Market surveys differ from these numbers. One SmartAsset illustration shows a $300,000 home with $200,000 owed qualifying for a $55,000 line. That works out to an 85% combined loan-to-value. On this network, a second home reaches 85% at a 680 or 700 score, and 90% only at 720 or better.
Yahoo Finance reports that many HELOC lenders look for 15% to 20% equity and a 680 score. On this network, second-home lines begin at a 640 score and 75% CLTV, and investment lines need a 700 score.
How to Choose the Best HELOC Program for Your Second-Home Down Payment
The best program for your situation depends on four things: the collateral, how much you need, how long you need to repay it, and what the purchase lender will accept. Lendmire brokers through select wholesale partners and is never the lender. It compares the programs against your file.
The federal consumer regulator describes a HELOC as revolving credit with your home as collateral, where the limit is a percentage of the home’s value minus what you owe. The network’s programs follow that logic with these structural rules:
- Position: a standalone line in first or second lien position.
- Draw structures: on primary residences and second homes, one structure has a 3-year interest-only draw with a 17-year repayment. The other has a 5-year interest-only draw with a 25-year repayment. The 5-year, 25-year structure is the longer-runway program. Investment lines run only the 5-year, 25-year structure.
- Drawn at closing: at least 75% of the line is drawn at closing on both structures. You cannot open a large line and take a sliver.
- Pricing: it floats through both the draw and repayment periods and never converts to fixed.
- Line size: $25,000 to $750,000. A line above $500,000 is primary-residence only.
- Valuation: lines at or below $500,000 usually run an automated valuation with no traditional appraisal. A higher CLTV can trigger a second valuation. Every line above $500,000 needs a full appraisal.
- Income test: DTI (debt-to-income ratio) can run up to 50%, calculated on the interest-only payment at the maximum draw. Credit profiles from 600 to 679 are held to 45%, and a ratio above 45% needs a 680 minimum.
- Credit: a 600 program floor, though second homes floor at 640 and investment lines at 700. A single-bureau score keyed to the primary wage earner is used, and the report cannot be more than 90 days old at closing.
- Housing and tradelines: requirements vary by program. The longer-runway program wants two tradelines seasoned 12 months, or one seasoned 24. Housing history must be 0x30x6 and 1x30x12 at 640 and above, or 0x30x12 from 600 to 639.
- Prior credit events: a bankruptcy needs 4 years of seasoning from discharge or dismissal. Foreclosure history splits. One program seasons a foreclosure at 7 years and a short sale or deed-in-lieu at 4. The other declines that history regardless of age. Investment files follow the 7-and-4-year path.
The 75%-drawn-at-closing rule matters more than it looks. You start paying interest on most of the line right away, so size the line to the down payment instead of opening a big cushion.
Where the Purchase Lender Draws the Line
The purchase lender decides whether your HELOC funds are acceptable, and policies vary. A BiggerPockets thread shows investors disagreeing about whether any bank accepts borrowed funds for a down payment. That disagreement is real, and it comes from different lenders running different rules.
Most DSCR purchase programs that Lendmire places accept a documented HELOC draw toward the down payment. Some cap how much can be borrowed or require a set amount of your own money. Here is how a rental purchase works step by step:
1. Open the line first. Get the HELOC approved before you shop, so you know your actual cash.
2. Size the draw. Divide the draw by the down-payment percentage to see the price it supports. Most DSCR purchases land at 75% to 80% LTV, meaning 20% to 25% down. Select programs reach 85% LTV (15% down) with roughly a 700 or higher score. Closing costs come on top. Exact terms depend on the lender’s guidelines, property type, leverage, and a full review of the borrower’s file.
3. Document the source. Expect to supply the line agreement, the draw statement, and the deposit trail into the purchase. Some lenders also want the funds to sit before contract, so ask first.
4. Underwrite the purchase. The new loan compares the new property’s rent to its own PITIA. The HELOC payment generally stays out of that ratio. Select programs start at a 1.00 coverage floor, and stronger ratios open better terms. A separate select-lender path accepts coverage below 1.00, with leverage and terms adjusted.
5. Count reserves separately. Borrowed funds are commonly accepted for the down payment and closing costs, but they are excluded from reserves. Reserves vary by lender, leverage, loan size, and transaction type. About 6 months of PITIA is common. Conservative rate-term files at modest leverage under $1,500,000 can see reserves waived, and larger loans typically step up to about 9 months.
A larger down payment lowers the payment and can lift the coverage ratio. It never erases leverage caps, credit floors, reserve rules, or property eligibility. The strongest files clear both tests: enough equity and enough rental coverage.
Credit tiers on purchases follow the same pattern. A 620 floor exists in parts of the network, most programs want around 660, and 700 or better unlocks the strongest leverage tiers. Loan sizes run up to $3,000,000 on standard programs (smaller balances available through select lenders), and above $2,500,000 the network generally holds to 30-year fixed structures.
Second Home or Rental? Where the Rule Breaks
Most of the confusion on this topic comes from one question: is the property a rental, or a place you will use yourself?
A personal-use second home. DSCR is an investment-property product. A true personal-use second home generally goes through a DTI-based path, where the HELOC payment counts against your income ratio. Classify the property honestly before choosing a program. The classification decides which underwriting applies.
A fully borrowed down payment. Some purchase programs accept it. Others want part of the down payment to come from your own unborrowed funds. This is a common point of friction between the line and the purchase.
Title and vesting. The HELOC must be held by you as an individual or by a revocable living trust. LLCs, corporations, partnerships, and irrevocable, blind, or land trusts cannot hold title on the line. A DSCR purchase can often close in an LLC, subject to lender program eligibility. If your collateral property is already deeded to an LLC, you need a vesting change, or a DSCR cash-out refinance instead.
Exposure limits. A borrower is limited to three lines, and one with more than 15 financed properties is not eligible. Combined exposure caps at $2,000,000 on the higher-leverage program and $750,000 on the longer-runway program.
Property types. Both HELOC programs exclude manufactured homes, co-ops, condotels, log homes, commercial, mixed-use, and agricultural-zoned properties. The same is true on the purchase side: DSCR loans on manufactured homes (single- and double-wide), log homes, and barndominiums are not offered.
Exit and prepayment terms. Many investors plan to improve the property, then refinance with a cash-out DSCR loan to retire the line. A cash-out refinance on a standard rental tops out around 75% LTV, and about 6 months of seasoning is the common expectation. If the new loan carries a prepayment penalty, a short hold can collide with it. Read the prepayment terms before building a quick flip-and-refinance plan around the line. Leverage, reserves, and pricing vary by lender and program; the final terms follow the full file review.
Availability. Lendmire’s HELOC placement covers 16 full-service states, which is narrower than its 41-market DSCR footprint. Confirm your state before building a plan around the line.
Sizing the Draw: A Worked Picture
Picture an investor with a primary residence worth far more than the first mortgage on it, and a credit profile at 720 or better. The line could reach 90% CLTV on that primary home. The investor wants a rental purchase at 75% LTV, which means 25% down plus closing costs. A draw equal to 25% of the purchase price covers the down payment but not closing costs. The investor either draws a bit more or pays closing costs from savings. Terms vary by lender guidelines, property type, leverage, credit profile, and full file review.
The new property’s rent covers its own payment at roughly 1.2x on the DSCR math. The purchase lender sees a healthy ratio. Meanwhile, the HELOC payment is a separate monthly obligation that comes out of the investor’s own pocket.
Now flip it. Suppose the same investor has a 680 score and secures the line with a second home. The ceiling is 85% CLTV, and the draw might be smaller. A smaller draw means a lower purchase price, or higher leverage on the new loan. Either choice shifts the coverage ratio, the reserves, and the pricing.
What the Decision Looks Like in Practice
The real decision is whether you can carry three obligations at once: your existing first mortgage, the HELOC, and the new purchase loan.
Each draw adds a payment against the same rent. The HELOC payment sits outside the DSCR ratio, but it still has to be paid. Clearing 1.00 coverage does not mean the deal cash flows, because repairs, vacancy, management, utilities, and capital expenses sit outside the calculation. A BiggerPockets thread on this exact setup makes the same point: the purchase has to cover both its own mortgage and the line.
The collateral is the real risk. Pricing on the line floats and never converts to fixed. If you miss payments, the property securing the line is at risk, not the one you bought. A solid cushion and a plan to pay the balance down are the points that separate a good use of the line from a risky one.
The main reason to use a line instead of a cash-out refinance is that your existing first mortgage stays untouched. Only the new borrowed money is priced fresh.
| Good fit | Poor fit |
|---|---|
| Strong equity and a 700+ score | Thin equity or a score near the floor |
| Purchase lender accepts borrowed funds | Lender wants fully unborrowed down payment |
| Rent covers the new loan with room | Rent only just clears the DSCR floor |
| Clear exit plan, such as a cash-out refinance | No plan to pay the balance down |
Questions to Ask Before You Apply
- Does the purchase lender accept a HELOC draw as down-payment funds, and is any part required to be your own money?
- Does the lender want the funds seasoned before contract?
- Will the line’s payment count in my income ratio on this purchase, or only the new loan’s payment?
- What property type and occupancy classification apply?
- How large must reserves be, and do borrowed funds count toward them?
- What are the prepayment terms on the new loan if I plan to refinance later?
Frequently Asked Questions
Can a HELOC cover the whole purchase of a second home?
Sometimes, but it is rarely the best structure. Some purchase programs accept a fully borrowed down payment, while others require part to come from your own unborrowed funds. Because the HELOC lender never sees the purchase, only the purchase lender can tell you. Check acceptance before you open the line. If you would rather document income through bank statements, Lendmire’s piece Best Bank Statement HELOC Program for a Down Payment on a Second Home covers that path.
Do I have to tell the mortgage lender I am using a HELOC?
Yes. The line will show up in your documentation, and the purchase lender needs to trace where the down payment came from. Hiding it creates a problem. Expect to provide the line agreement, the draw statement, and the deposit trail.
Does borrowed money count as reserves?
Generally no. Reserves vary by lender, leverage, and loan size, and about 6 months of PITIA is common. The same dollars rarely count twice.
Which property should secure the line?
It depends on your equity and credit. A primary residence or second home can reach 90% CLTV at a 720-or-better profile, while an investment property caps at 70% with a 700 minimum. A primary residence is also the only collateral for lines above $500,000. Lendmire’s article on using a DSCR HELOC for your next down payment covers lines secured by a rental property.
Is a personal-use second home treated the same as a rental?
No. A personal-use second home generally goes through a DTI-based path, where the HELOC payment counts against your income ratio. A rental purchase runs through a DSCR program, which qualifies primarily on property-level rental income covering the payment, subject to lender guidelines. The complete DSCR loans guide explains how those programs work from start to finish.
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. The best program is the one that matches your file, and a lender’s willingness to accept borrowed funds will often decide the outcome before the line does.
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.
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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
1. SmartAsset: HELOC for a down payment
2. Yahoo Finance: HELOC for a down payment
4. BiggerPockets: What bank will allow a HELOC as a down payment
5. BiggerPockets: Using a HELOC for a down payment or full purchase
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: Best HELOC Program to Pay for Home Improvement Projects · Best HELOC Program to Tap Condo Equity for the Down Payment Before Selling · Best HELOC Program to Fund a Home Remodel
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
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Compliance and disclosures. Lendmire (NMLS# 2371349) is a licensed mortgage broker and is not a direct lender, depository institution, financial advisor, or tax professional. Content in this article is general market analysis and educational information — not financial, legal, or tax advice for any specific situation. Lendmire does not guarantee loan approval; every transaction is subject to underwriting by the funding lender. Mortgage pricing and loan program guidelines are subject to change at any time without notice and vary by borrower characteristics, property type, and state regulations. Lendmire complies with Equal Housing Opportunity. Licensure verification: NMLS Consumer Access.