Banks That Offer a HELOC With a Thirty-Year Interest-Only Structure

The Quick Read: A true thirty-year interest-only HELOC is rare, because most thirty-year lines pair a short interest-only draw period with a long fully amortizing repayment period, so the useful question is which structure a lender actually writes and how your file holds up when payments step up.

• “Thirty-year” usually describes total maturity, not thirty years of interest-only payments.
• Interest-only payments leave the balance untouched, so the debt does not shrink during the draw period.
• On Lendmire’s network, an investment-property line runs a 5-year interest-only draw and a 25-year repayment, for a 30-year total.
• The line qualifies the borrower, not the rent, which is the main difference from a DSCR loan.
• This page names no banks, because the right lender depends on the property, the credit profile, and the equity available.

What Does “Thirty-Year Interest-Only” Actually Mean?

Three different products hide behind the phrase, and mixing them up is how borrowers end up with a payment they did not plan for.

The first is a thirty-year total term. The line has a draw period, then a repayment period, and the two add up to thirty years. Interest-only payments apply only to the draw. This is by far the most common version. Market sources describe typical draw periods of five to ten years followed by a twenty-year repayment, and some lines carry a balloon at the end of the draw.

The second is interest-only for the entire term. The balance never amortizes, so a large balloon comes due at maturity. This version is uncommon, and a borrower should treat any claim of it as something to verify in writing before applying.

The third is a thirty-year amortization schedule with interest-only payments during the draw. It looks like the first one, but the repayment math differs. Ask which one is on the table before comparing anything else.

How the Mechanics Run, Step by Step

1. Collateral and lien. The line is secured by the property, in first or second lien position. Many investors instead borrow against their primary home to fund a rental purchase, which is a different file with different leverage tiers.

2. Draw period. Interest accrues only on the amount drawn, and the borrower can draw up to the limit. On Lendmire’s network, however, at least 75% of the line is drawn at closing, so the draw period works more like a funded line than a standby one. Any later draws are optional and come on top of that initial amount.

3. Interest-only payment. The payment covers interest and leaves principal alone. Pricing floats through both phases and never converts to fixed, so the payment can change even when the balance does not. The CFPB’s HELOC brochure notes that plans differ on whether payments include principal during the draw, and that monthly payments may change even if you don’t draw more money.

4. Transition. The draw closes and amortization starts on whatever balance remains. The CFPB says payments are often significantly higher once repayment begins, and that on some plans the whole balance is due when repayment starts.

5. Underwriting. The review looks at credit, debt-to-income, combined loan-to-value, title, and valuation. On Lendmire’s network, DTI tops out at 50% and is qualified on the interest-only payment calculated at the maximum draw, not the planned draw. Rent can support the file, but it is not the qualifying basis.

6. Documents. Expect the current first-mortgage statement, insurance declarations, the vesting deed, a lease where the property is rented, a credit report, and a valuation.

The Structures That Exist, Side by Side

Across the network’s HELOC programs, two draw structures exist for primary residences and second homes. Investment lines use only one of them. A quick comparison:

Only the 5-year-draw program produces a thirty-year total. Its interest-only window is about one-sixth of the life of the loan. The 3-year-draw program is not a thirty-year product at all. Tennessee shortens both structures, to 3 years plus 12 and 5 years plus 10.

Both programs float across the draw and the repayment period. Neither converts to a fixed payment. A figure quoted for one program carries that program’s draw and repayment terms, so compare quotes only within the same structure.

What Leverage and Credit Look Like by Occupancy

Maximum combined loan-to-value depends on what the property is, not just on the borrower. Quoting one ceiling for all three occupancies misleads.

On an investment property, the ceiling is 70% CLTV, with a 700 minimum credit profile and a maximum line of $500,000. There is no higher tier. That cap holds through the whole credit range, so a 720 score does not buy more leverage on a rental.

On a second home, leverage reaches 90% CLTV only at 720 or better, on lines up to $500,000. Tiers step down from there: 85% at 700 and 680, 80% at 660, and 75% at 640, which is the minimum for second homes.

On a primary residence, the 90% CLTV tier also requires a 720 profile and applies up to $500,000. Lines above $500,000 are available only on a primary residence, cap at 75% CLTV, and require a full appraisal. The credit requirement for those larger lines is 700 or better (720 on the 5-year-draw structure, the longer of the two). Primary-residence lines run up to $750,000, the network’s overall maximum. A Texas primary residence is a homestead and caps at 80% combined loan-to-value.

Market surveys report that lenders broadly cap investment-property lines at 80%, with many sitting below 70% (NerdWallet). The network figure for an investment property is 70% CLTV, which is the number a rental file should plan around. Qualification stays subject to lender guidelines and full file review.

Where the General Rule Breaks

Availability is the first gate. NerdWallet reports that fewer lenders offer HELOCs on investment properties, that borrowing limits run lower than on a primary home, and that multiple appraisals may be required. A broker that shops several wholesale lenders can test the same file against different programs. A single bank gives one answer.

Entity title blocks many rental owners. Title must sit with an individual or an inter vivos revocable living trust. An LLC, corporation, partnership, or an irrevocable, blind, or land trust cannot hold title on these lines. A rental already deeded to an LLC needs a vesting change or a different product. A DSCR cash-out refinance is the usual alternative, subject to program terms.

Property type narrows the field. Single-family, 2-4 units, PUDs, townhomes, and condominiums, including non-warrantable condos, are eligible. Manufactured homes, co-ops, condotels, log homes, commercial, mixed-use, and agricultural-zoned properties are not offered. Modular factory-built homes are eligible only on the 5-year-draw program.

Credit history carries real weight. A bankruptcy needs four years of seasoning from discharge or dismissal. Foreclosure-family history splits by program on primary residences and second homes. One declines it regardless of age, while the other seasons a foreclosure at seven years and a deed-in-lieu, pre-foreclosure, or short sale at four. Investment files follow the seven-and-four path.

Exposure limits cap scaling. A borrower is limited to three lines, and total exposure across them is capped. On the higher-leverage program the combined cap is $2,000,000, while on the longer-runway program it is $750,000, which equals that program’s largest single line. A borrower with more than 15 financed properties is not eligible.

Valuation works differently below and above $500,000. Lines at or below that size ordinarily run an automated valuation with no traditional appraisal, though higher CLTV may trigger a secondary valuation. A full appraisal is required on every line above $500,000, and a borrower may request one at any size.

Availability is also narrower than the DSCR footprint. Lendmire places these lines in 16 full-service states: AL, CA, CO, FL, GA, IN, MI, MT, NM, NC, OH, PA, TN, TX, VA, and WA. Its DSCR investor loans run across 40 states plus Washington, D.C., which makes 41 markets.

How to Tell a Draw-Only Line From a True Full-Term One

Disclosures settle this faster than marketing copy does. Before applying, get the following in writing:

1. The length of the draw period, and the length and amortization method of the repayment period.

2. Whether the payment includes principal at any point during the draw.

3. What happens at maturity, whether a balloon applies, and whether renewal is allowed. Renewal should never be assumed, because it is not automatic.

4. Whether the plan can be frozen or reduced if the property value falls.

5. How the index moves the payment, and whether a cap applies.

A line described as thirty-year interest-only that cannot answer item 3 in writing is not one to build a plan around.

The Year-Six Stress Test

The step-up at the end of the draw is where these lines get hard, and the test is simple. Run the rental twice. First, price the interest-only payment on the drawn balance. Second, price an amortizing payment on that same balance across the repayment term. Compare each against the rent.

If the rental holds in both phases, the line works as designed. If it only holds in phase one, the borrower needs a plan for the transition: pay down the balance from savings, refinance, or sell. One investor thread on BiggerPockets describes planning a paydown from cash when the draw ends and mentions a cash-out refinance as an exit.

Floating pricing adds a second variable. The payment can rise with the index while the balance stays the same, so test the line with a cushion above today’s payment.

A DSCR-style check is useful here as a rough lens only. DSCR divides monthly rent by the full monthly obligation, meaning principal, interest, taxes, insurance, and any HOA dues. Clearing 1.00 on that math is not the same as positive cash flow, because repairs, vacancy, management, and utilities sit outside the ratio.

HELOC or DSCR Cash-Out? How the Two Qualify

A HELOC reviews the borrower: credit, DTI, and equity. A DSCR cash-out refinance qualifies primarily on property-level rental income covering the payment, subject to lender guidelines. Many DSCR programs start at a 1.00 coverage ratio, and stronger ratios open better pricing and leverage. A separate select-lender path takes coverage below 1.00, with leverage and terms adjusted. The complete DSCR loans guide covers those qualification paths in full.

On the leverage side, a DSCR cash-out refinance tops out around 75% LTV on most of the network and generally expects about six months of seasoning. A DSCR cash-out is a standalone term loan. It does not give a revolving interest-only draw.

Lendmire’s piece Banks That Offer a Bank Statement HELOC With a 10-Year Interest-Only Draw Period covers the self-employed angle.

Who This Structure Fits

A line fits an investor who has equity in a property held in their own name, strong credit, low existing debt, and a short-to-medium horizon for the draw. Acquisition timing and renovation draws are the common uses, because interest accrues only on what is drawn.

It fits poorly when the rental is held in an LLC, when credit sits near the program floors, when DTI is already near 50%, or when the plan depends on the rent carrying the debt. Tax treatment varies; consult a qualified professional.

Key Terms Defined

Draw period: the stretch of time when the borrower can take money from the line and pay interest only on the drawn balance.

Repayment period: the stage after the draw closes, when principal and interest are due on the remaining balance.

CLTV: combined loan-to-value, which adds the line to any other liens and divides by the property value.

Balloon: a lump-sum balance due at the end of a term instead of an amortizing schedule.

Vesting: the legal form in which title to the property is held, such as an individual, a trust, or an LLC.

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.

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.

References

1. Experian – HELOC draw period

2. CFPB – HELOC brochure

3. CFPB

4. NerdWallet – HELOC on an investment property

5. BiggerPockets – leveraging a cash property through a HELOC