The Quick Read: Your limit is whichever is lower: the equity test or the rent test. The equity test caps the new line plus any first mortgage at 70% combined loan-to-value (CLTV) on a second lien, subject to underwriting. The rent test requires rent to cover a stress payment on the entire credit limit at 1.10x. The old HELOC gets paid from the new line, so it uses up room instead of adding any.
- Second lien: up to 70% CLTV at a 720 score or better, on lines of $50,000 to $500,000.
- First lien on a rental with no mortgage: up to 75% LTV at 740 or better, 70% at 700 to 739, on lines to $500,000.
- Lines above $500,000 (to $1,000,000) on a first lien top out at 65% LTV.
- The rent test runs on the whole limit, not just the amount drawn.
- At least 80% of the line is drawn at closing, so this works as a payoff tool, not a standby fund. These specifics are subject to lender guidelines and a full review of property, leverage, and credit.
What Sets Your Maximum?
Two tests run side by side, and the smaller answer wins. A third check, the old payoff, decides whether the answer is big enough for you.
The equity test. Take the property’s appraised value and multiply by the allowed ceiling. Subtract the first mortgage balance. What remains is the room for the new line. Say a rental is valued at $400,000 and has a first mortgage you plan to keep. At 70% CLTV, the first mortgage and the new line together must stay at or under 70% of that value. The bigger the first mortgage, the less room the new line gets.
The rent test. DSCR stands for debt service coverage ratio. It is monthly rent divided by the qualifying payment. On this program the minimum is 1.10x. The qualifying payment is a fully amortizing payment on the entire credit limit, at the start rate plus 2 percentage points. Taxes and insurance are not part of it. Rent is the lesser of the appraisal’s market rent and the lease, unless three months of receipts support a lease above market. Confirm on the file how the lender treats the first-mortgage payment on a second lien, because the lender’s own calculation governs.
Because the test runs on the full limit, borrowing less on paper helps the rent test directly. A smaller line means a smaller stress payment.
How Do You Calculate It Step by Step?
Start with the payoff and work backward. Four numbers drive everything: value, first mortgage balance, old HELOC payoff, and any cash you want on top.
1. Get the payoff. The old lender issues a statement showing the exact amount owed, including accrued interest and any early-repayment charge. Bankrate notes that early payoff can carry a penalty depending on the lender, so read your note.
2. Find the ceiling. Multiply value by 70% for a second lien (720 score or better) or by your first-lien tier.
3. Subtract the first mortgage. On a second lien, this leaves the largest possible new line.
4. Compare. The payoff plus any extra cash must fit under that number. If it does, move to the rent test.
5. Run the rent test on the whole line. If rent covers the stress payment at 1.10x or better, the size works on paper.
6. Check the floor. Lines start at $50,000, and at least 80% is drawn at closing. A closing draw is never less than $50,000.
All of this is subject to underwriting. The lender’s own math controls.
Three Scenarios in Ratios
These are modeled, not market data.
Ample room. A rental has a modest first mortgage and a large equity cushion. The first mortgage plus a line big enough to retire the old HELOC lands well under 70% CLTV. Rent clears the stress test with room to spare, around 1.3x. The old payoff fits, and a little cash is left over.
Tight room. The first mortgage plus the new line lands right at 70% CLTV once the old payoff is included. Rent covers the stress payment at about 1.12x. It works with no cushion. A small drop in appraised value, or a declining-market flag, which lowers the ceiling 5 points, could make the payoff stop fitting.
Old balance too large. The old payoff alone pushes combined debt past 70%. Rent might be strong, but equity caps the line. The options are paying down the old balance with cash first, shrinking the first mortgage, or switching structures (see the decision table below).
A small old balance has its own wrinkle. The line cannot be smaller than $50,000 and the closing draw cannot be less than $50,000. If you owe $20,000 on the old HELOC, you would draw well beyond the payoff. Make sure you want that debt before you take it.
Which Lien Position Applies?
Lien position depends on what sits on the rental today. A first mortgage you keep means a second-lien line, with the 720 minimum score. A rental with no mortgage means a first-lien line, with a 700 floor.
The line is never a third lien. It is never written together with a purchase. It is also never placed on your own home or a second home. If your old HELOC sits on your primary residence, a rental-secured line is a different transaction: the payoff would come from rental equity, so the rental has to stand on its own rent and CLTV. A HELOC on a different rental generally needs its own file, because the new line is not a way to move debt between properties.
An LLC can hold title on the rental, subject to lender program eligibility. The members sign as guarantors. A title holder who is not a borrower signs a non-borrowing owner acknowledgment and the security instrument.
When Does the Old HELOC Force the Timeline?
The old line’s terms set your clock. Per the CFPB, when the draw period ends you can no longer borrow, and payments are often significantly higher once repayment begins. In some cases the full balance comes due.
Two points matter for your timing:
- Repayment starts regardless. The CFPB’s HELOC booklet says repayment begins whether you paid some, a little, or none of the principal. Facing a balloon payment means being ready with a plan such as refinancing.
- Lenders usually warn you. Bankrate reports that most lenders notify borrowers at least six months ahead, and the end date is usually on your monthly statement.
Starting before the draw ends gives you the most options. A rental that has already been refinanced or bought recently may be ineligible under the seasoning rule, so check that before the old line’s clock gets tight.
What Seasoning Applies?
A rental bought or refinanced inside the last 6 months is not eligible (that clock runs from the last note date to the new note date), and the owner must have held title for 6 months (settlement date to note date). Plan around both before you count on this structure.
What Does the File Need?
The file runs on the rental. It does not run on your personal income. The line qualifies primarily on property-level rental income covering the payment, subject to lender guidelines. No traditional personal-income documentation, W-2s or pay stubs are required, and no debt-to-income ratio is calculated. Rent, the lease, the credit report and the valuation are all documented.
Across most programs in the wholesale network Lendmire works with, the pieces look like this, subject to underwriting:
- Credit: 720 minimum on a second lien, 700 on a first lien. No 30-day mortgage late in the last 12 months. 48 months since a bankruptcy, foreclosure, short sale or deed-in-lieu.
- Valuation: Lines up to $400,000 use an automated valuation with a property inspection report, or a full interior appraisal. Larger lines need a full interior appraisal. Appraisal waivers are not accepted.
- Reserves: None required.
- Lease: Required. A two-to-four-unit property may have at most 1 vacant unit.
- Exposure: At most 5 loans or $2,500,000 per borrower with the program.
- Payoff paperwork: A title search confirms the old HELOC lien. The closing agent obtains a payoff statement, pays the old line from proceeds, and records a release. Ask for the old line to be closed, not just paid to zero.
Not eligible on this lane: rural-designated property, condotels, row homes, leaseholds, land trusts, age-restricted communities, mixed-use, and a property listed for sale in the prior 2 months, among others. Eligible types include single-family, PUD, townhome, two-to-four units, and condominiums.
What Is the Repayment Structure of the New Line?
The new line has its own phases. You get a 5-year interest-only draw period on the drawn balance, then a 25-year fully amortizing repayment period, for a 30-year maturity. The rate is variable. Later draws are at least $5,000 each.
Moving to the new line means you are swapping one future step-up for another, though a later one. Model the new repayment phase against your current rent before you sign. The rate and pricing terms come with the lender’s HELOC disclosures.
DSCR HELOC or Something Else? A Decision Table
| Situation | Better fit |
|---|---|
| Rental has a first mortgage you like, equity is ample | DSCR HELOC, second lien |
| Rental has no mortgage, equity is ample | DSCR HELOC, first lien |
| Old balance exceeds the room under the cap | Pay down first, or switch structure |
| Rent fails 1.10x on the full line | Smaller line, or a cash-out refinance |
| Old HELOC is on your own home | Not a like-for-like payoff |
| Want a standby fund | Poor fit (80% drawn at closing) |
A DSCR cash-out refinance tests only the new first loan, so it can behave differently on the rent test. It also replaces your first mortgage, which matters if you like the one you have or it carries a prepayment penalty.
Why Do Bank HELOCs Run Out for Investors?
Investors on BiggerPockets note that some lenders reject the word HELOC on an investment property and call it a line of credit secured by the property instead. When personal-income underwriting is the obstacle, a rent-qualified line looks at the property instead.
This is the rule of thumb across the lenders in the network: equity sets the ceiling, rent sets the size you can carry, and the payoff has to fit inside both. The complete DSCR loans guide covers the broader DSCR framework.
Key Terms Defined
CLTV (combined loan-to-value): the first mortgage balance plus the new line, divided by the property’s value.
DSCR: monthly rent divided by the qualifying payment. This program wants at least 1.10x.
Draw period: the stretch when you can borrow from the line and pay interest on what you drew.
Repayment period: the stretch after the draw ends when you can no longer borrow and the balance amortizes.
Seasoning: the waiting period between a purchase or refinance and a new loan.
Stress payment: the payment the lender tests rent against, set above the start rate and applied to the whole limit.
Frequently Asked Questions
Can the new line be bigger than the old HELOC balance?
Yes, if equity and rent allow. Anything above the payoff comes to you as cash. Remember that at least 80% of the line is drawn at closing, so a larger line means more borrowed money on day one, subject to underwriting.
What if my old balance is more than the room under the cap?
Then the line cannot cover it in full. You can pay down the old balance with cash, reduce the first mortgage, or look at a cash-out refinance instead. A first lien on a rental with no mortgage reaches 75% LTV at 740 or better on lines to $500,000, so the structure matters. Terms depend on the lender’s guidelines, the property type, the leverage, and a full review of the credit profile.
Does the old HELOC have to be on the same rental?
Generally yes for a clean payoff. A HELOC on a different property usually needs its own file, and a line on your primary home is a different transaction. The new line is secured only by the rental, so the rental must stand on its own rent and CLTV.
How does seasoning affect a rental I recently bought or refinanced?
The seasoning rules covered above apply to a recently bought or refinanced rental, so check your note and settlement dates against them before you apply.
Does an LLC on title change the limit?
No. The leverage tiers and rent test are the same. Vesting in an LLC is allowed on investment property, subject to program terms, with the members signing as guarantors. The program is offered in 15 of Lendmire’s 16 licensed states, every licensed state except Tennessee.
If you are considering a home equity line on a rental property and want to see how the numbers work, Lendmire can help you compare DSCR HELOC options based on the property, the rent, the equity available, credit profile, combined leverage, and your goals. Phone 828-256-2183 or request a quote. Lendmire is a broker, and every file is underwritten individually by the lender.
Older HELOCs rarely fix themselves, so the cleanest payoffs start well before the statement shows the last draw date.
For current guidelines and terms, see Lendmire’s DSCR HELOC programs page.
About Lendmire
Lendmire — NMLS# 2371349 — is a mortgage broker that arranges DSCR home equity lines of credit on rental property through wholesale lenders. The line is qualified on the rental’s rent rather than the owner’s personal income, and every line is subject to the lender’s guidelines and full underwriting. 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. Bankrate – HELOC draw period
2. CFPB
4. BiggerPockets – HELOC for investment property
This article is part of Lendmire’s DSCR HELOC program — full qualification details, guidelines, and scenarios live on the program page.
Related reading: How Much Can You Borrow on a DSCR HELOC as a Co-Owner Who Is on the Deed? · How Much Can You Borrow on a DSCR HELOC for Landlords Choosing a Lender? · How Much Can You Borrow on a DSCR HELOC With an Appraisal Below the Purchase Price?
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
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Required disclosures. Lendmire (NMLS# 2371349) operates as a licensed mortgage broker, not a direct lender or depository. The discussion in this article is general in nature and should not be relied upon as financial, legal, or tax advice — every investment scenario is unique and should be reviewed by a qualified professional. Any loan inquiry is subject to lender underwriting, and this article is not a commitment to lend or a guarantee of approval. Mortgage rates, loan terms, and program guidelines vary by borrower, property, and state, and may change without notice. Equal Housing Opportunity. Verify licensure at NMLS Consumer Access.