The Quick Read: A home equity line of credit (HELOC) has three cost layers: upfront fees, interest on the balance you have actually drawn, and a payment that shifts when the benchmark moves or the repayment period begins. The interest-only payment you see early is often not the one you carry for the life of the line.
- The payment on most lines can change even if you borrow nothing new.
- Interest-only describes the draw period. It does not mean the balance is shrinking.
- On the lines Lendmire brokers, at least 75% of the line is drawn at closing, so interest starts on a large balance.
- On an investment property, the network ceiling is 70% combined loan-to-value (CLTV), with a 700 minimum credit profile and a $500,000 maximum line.
- A line qualifies mainly on you, not on the rent. That is a different test from a DSCR loan.
Lendmire is a mortgage broker. It places standalone home equity lines through select wholesale partners and never lends the money itself. Every figure below is subject to lender guidelines and a full file review. None of it 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
HELOC: A revolving line of credit secured by property. You borrow, repay, and borrow again up to a limit during a set window.
Draw period: The window when you can borrow from the line. Payments are often interest-only during this stretch.
Repayment period: The stretch after the draw ends. The line closes to new borrowing and the balance is paid down with principal and interest.
Index and margin: The index is a published benchmark, usually the prime rate. The margin is the lender’s fixed add-on. Together they set your borrowing cost.
CLTV: Combined loan-to-value. It adds your first mortgage and the new line together, then divides by the property value.
DSCR (debt service coverage ratio): Monthly rent divided by the full monthly payment on the property. A DSCR loan is reviewed primarily on property-level rental income covering the payment, subject to lender guidelines.
What Does a HELOC Cost in Total?
Cost and payment are not the same thing. Cost is everything you hand over across the life of the line. Payment is what leaves your account in a given month. Most myths about HELOCs come from blurring the two.
| Cost layer | When it hits | What drives it |
|---|---|---|
| Upfront fees | At opening | Lender fee schedule, valuation type |
| Interest | Monthly | Drawn balance, index, margin |
| Payment shift | End of draw | Balance carried, repayment length |
| Exit fees | If you close early | Lender’s contract terms |
Across the wholesale network, home equity lines come in two draw structures. One is a 3-year interest-only draw followed by a 17-year repayment. The other is a 5-year interest-only draw followed by a 25-year repayment. Investment property lines run the 5-year structure only.
On both structures, pricing floats through the draw and the repayment period. It does not convert to a fixed structure. Keep that in mind through the myths below.
The Myth: “A HELOC Payment Is Basically Set When You Sign”
The Reality
Most lines float. Your payment moves when the benchmark moves, and it moves when your balance changes.
The federal home equity plan rule makes lenders disclose the index, the margin, and how often the rate can change. It also requires a statement that the starting figure may not be based on the index and margin used later. The CFPB’s HELOC booklet adds that with a variable rate, the monthly payment may change even if you don’t draw more money.
Why does the myth persist? Advertising leans on introductory pricing and “starting at” language. A teaser is a starting point, not a forecast.
For a rental investor, the problem is plain. Rent is mostly fixed under a lease. A floating payment is not. The gap between them can squeeze cash flow without any change in your property or your tenants.
The fair takeaway: price the line at a higher benchmark than today’s, then ask whether the rental still carries it.
The Myth: “Interest-Only Means the Payment Stays Low”
The Reality
When the draw ends, the same balance has to be paid down over the remaining term. The payment now includes principal.
The size of the jump depends on balance, benchmark, and term. Experian’s explainer says many borrowers find their payments more than double once repayment begins. Treat that as a direction, not a forecast. No single figure fits every line.
The CFPB booklet also warns that on some plans, even the principal-and-interest payment does not fully repay the balance by the end of the term. That leaves a balloon. Read the note.
On the network’s structures, repayment is fully amortizing, meaning the payments are built to retire the balance. That still means a real step up at conversion. Here is how the two phases compare:
| Item | Draw period | Repayment period |
|---|---|---|
| Payment covers | Interest only | Interest plus principal |
| Balance | Stays flat | Shrinks |
| Payment can change when | Benchmark moves | Benchmark moves, balance amortizes |
| Investment line length | 5 years | 25 years |
The myth survives because marketing stresses the draw-period minimum. That is the flattering number. Fair enough, but it covers only part of the picture.
The Myth: “A No-Closing-Cost HELOC Costs Nothing to Open”
The Reality
Lower is not zero. NerdWallet notes that HELOCs typically carry no or very low closing costs compared with a cash-out refinance. That is true. It is also a long way from free.
The federal disclosure rule is explicit that the percentage figure a lender quotes reflects interest only. It leaves out other costs. Fees never show up there.
Fee schedules differ by lender. Look for annual fees, inactivity fees, and charges for closing the line early. Also ask about the property valuation. On the network, lines at or below $500,000 ordinarily use an automated valuation with no traditional appraisal. A higher CLTV may require a secondary valuation, and a borrower can request a full appraisal. Above $500,000, a full appraisal is required on every line.
The same NerdWallet piece reports that many lenders charge higher rates and fees on investment-property HELOCs than on a primary home. So the zero-fee pitch deserves extra scrutiny on a rental.
Early-closure clauses matter most if the line is a bridge. Say you plan to refinance into a DSCR loan within a couple of years. Any exit fee is then part of your real cost.
The Myth: “I Only Pay Interest on What I Use”
The Reality
Interest does accrue on the drawn balance, not the credit limit. That part is true. The catch is how much gets drawn on day one.
On both network structures, at least 75% of the line is drawn at closing. You do not get to open a large line and leave it idle while the meter stays near zero. The balance, and the interest on it, starts big.
After closing, the minimum subsequent draw is $1,000 on the 5-year structure. Lenders that publish minimums can also set them higher in some places.
Two more points on interest-only payments:
- The balance does not move. An interest-only payment leaves what you owe unchanged, so the full balance reaches the repayment period.
- Qualifying is stricter than the payment looks. The network qualifies borrowers on the interest-only payment calculated on the maximum draw. Maximum debt-to-income (DTI) is 50%, and 45% for credit profiles from 600 to 679.
The myth persists because revolving credit cards work this way. A HELOC looks similar but behaves differently when most of the line is funded at closing.
The Myth: “A HELOC on a Rental Costs the Same as on My Own Home”
The Reality
Rentals are priced and underwritten more tightly. NerdWallet reports that investment properties are not eligible with all HELOC lenders, and that those who do lend often charge more. Market surveys also describe lower leverage limits on rentals. The network figures are the ones that matter for files placed through Lendmire:
| Occupancy | Max CLTV | Min credit | Max line |
|---|---|---|---|
| Investment property | 70% | 700 | $500,000 |
| Primary residence | 90% (at 720+) | 600 floor | $500,000 at that tier |
The 90% primary-residence ceiling applies only at a 720-or-better credit profile. It does not apply to investment properties.
Title is the sharpest difference. Borrowers hold title individually or in a revocable living trust. An LLC cannot hold title, so a rental already deeded to an LLC needs a vesting change or a DSCR cash-out refinance instead (subject to program terms). Manufactured homes, co-ops, condotels, and log homes are not offered.
A bank-style HELOC is underwritten on the borrower: credit, income, and DTI. A DSCR cash-out qualifies primarily on property-level rental income covering the payment. That is why many investors with several properties find the DSCR route fits better. The complete DSCR loans guide walks through that structure.
What to Do Before the Draw Ends
Payment shock is predictable. That means you can plan for it. Here is a short checklist:
1. Model the repayment payment on your full balance, not the interest-only figure.
2. Stress that payment at a higher benchmark than today’s.
3. Pay principal voluntarily during the draw where the lender allows it.
4. Compare the line against a DSCR cash-out, where rent is tested against the full payment.
5. Read the early-closure clause before you sign.
6. Keep clean records of how the funds were used. Tax treatment can depend on how the funds are used and how the property is held; investors should keep clear records and speak with a qualified tax professional before relying on any deduction.
One more caution. Clearing a coverage test is not the same as positive cash flow. Repairs, vacancy, and management sit outside the calculation. A floating payment adds one more moving part.
Frequently Asked Questions
Does the payment change if I don’t borrow more?
Yes, on most variable-rate lines. The CFPB booklet says the payment may change even without new draws, because the benchmark moves. Your balance and the index decide the payment, not your borrowing activity.
Is a rental HELOC or a DSCR cash-out better for a rental?
It depends on what you need. A HELOC on an investment property caps at 70% CLTV and a $500,000 line, and it is judged on you. A DSCR cash-out on a standard rental tops out around 75% LTV across most of the network, and about 6 months of seasoning is the common expectation. It qualifies primarily on rental income covering the payment. The cash-out also fits a property held in an LLC, subject to program terms. Every figure here varies by lender and program — guidelines, property type, leverage, and credit profile all apply.
How much credit do I need for a line on a rental?
Expect a 700 minimum on an investment property line. Primary residences can go as low as 600, at lower leverage. Pricing and available terms vary by lender, borrower profile, property type, and full underwriting review. A credit report that is more than 90 days old at closing will not work, and there are no rescores.
Can I use a HELOC on a short-term rental?
Eligibility turns on occupancy, credit, and title, not on how the property earns.
Is the line available everywhere Lendmire does DSCR loans?
No. Lendmire’s home equity lines are offered in 16 full-service states, a narrower footprint than its 41-market DSCR coverage, which includes Washington, D.C.
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 risk of a HELOC on a primary home is worth reading first if your own residence is the collateral.
About Lendmire
Lendmire — NMLS# 2371349 — is a mortgage broker that arranges home equity lines of credit in its 16 full-service states through wholesale lenders, on primary residences, second homes and investment properties. 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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References
1. eCFR, 12 CFR 1026.40 Requirements for home equity plans
2. CFPB, Your Home Equity Line of Credit booklet
3. Experian, What is a draw period on a HELOC?
4. NerdWallet, Can you get a HELOC on an investment property?
This article is part of Lendmire’s home equity line of credit program — full qualification details, guidelines, and scenarios live on the program page.
Related reading: 4 Myths About Bank Statement HELOC Fees and the Payment · 5 Myths About What a Rental HELOC Costs and How It Works · 3 Myths About What a Bank Statement HELOC Can Pay For
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
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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.