The Quick Read: No federal rule forces principal payments during a HELOC draw period, so the credit agreement decides: many lines require interest only, some build a slice of principal into the minimum, and extra principal is usually allowed, though the full balance still comes due once repayment begins. Interest-only means the balance does not shrink. That is where most surprises start.
- Read the minimum-payment formula in your agreement. It tells you whether principal is required.
- Interest-only minimums leave the balance unchanged, so the repayment payment is built on the full amount you drew.
- Voluntary principal payments are generally allowed and can restore borrowing room, because the line revolves.
- Variable pricing means the draw payment can move even if you borrow nothing more.
- A HELOC is not a DSCR loan. The two are underwritten very differently, and the difference matters if you hold rentals.
A home equity line of credit (HELOC) works like a credit card secured by property. You borrow against a limit, repay, and borrow again. The draw period is the first phase, when you can take money out.
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.
What the Draw Period Actually Is
The draw period is the borrowing window, and it is only the first half of the loan. Bankrate describes it as lasting up to 10 years, during which borrowers are usually required to pay only the interest on what they borrowed. You can borrow, repay and re-borrow until the window closes.
Experian also puts the draw period at about 10 years. It notes that repayment-period payments include principal, so they can be much higher. Many borrowers see them more than double.
Draw lengths are not standardized. Across lenders you will see anything from a few years to a decade. The agreement you sign sets the number, not a rule.
Interest accrues only on the balance you have drawn. It does not accrue on the full credit limit. A line with a large limit and a small balance carries a small payment. A line drawn to the limit carries a large one.
Do You Have to Pay Principal During the Draw?
Usually not, but it depends on the minimum-payment formula in your contract. No law sets that formula. The lender writes it, and you accept it when you sign.
Most lines in the market use interest-only minimums. A few use a principal-and-interest minimum, where part of each payment reduces the balance. Some use a percentage-of-balance formula. The wording varies, so find the clause, not the marketing page.
One point surprises people. Even when a minimum includes principal, it often does not pay the balance off by the end of the draw. You are chipping at it, not retiring it.
On the lines Lendmire places through its wholesale network, the draw is interest-only. That fits how the broader market works, but it is a program fact, not a universal rule.
Can You Pay Extra Principal?
Generally yes, unless the agreement says otherwise. Paying more than the minimum lowers the balance, which lowers the interest charged. Because the line revolves, principal you pay back can often be borrowed again.
Three practical points matter here.
Tell the lender the extra amount is principal. Many servicers apply anything above the interest due to principal. Some do not unless you instruct them. Use the principal-only option or write the instruction on the payment.
Check for early-closure fees. Paying down is rarely penalized. Paying off and closing the account within the first few years sometimes is. The fee schedule is in your agreement.
Know whether paid-down principal frees credit. On a standard revolving line it does. Some lines add a short lag, or require the new draw to meet a minimum amount.
On the 5-year draw structure in our network, a later draw after closing has a $1,000 minimum. Check the equivalent term in any line you are considering.
The Three Payment Structures Side by Side
Most HELOC draw-period payments fall into one of three shapes. The federal consumer-finance regulator’s HELOC brochure says some plans set a minimum payment that includes a slice of principal plus accrued interest, while others allow interest-only payments. It also warns that the principal slice typically does not retire the balance by the end of the term.
| Structure | What you must pay | Balance behavior | Effect at repayment |
|---|---|---|---|
| Interest-only | Accrued interest | Stays flat | Largest jump |
| Interest plus partial principal | Interest and a slice | Shrinks slowly | Smaller jump |
| Fully amortizing | Interest and full principal | Reaches zero | No jump |
The older federal booklet’s comparison worksheet lists the same three payment types, so the framework is not new. What changes between lenders is which one they offer.
If your plan is the first row, the minimum payment is a convenience, not a repayment plan. Treat it that way.
What a Paydown Does to Your Balance and Your Payment
Extra principal helps in two places. It cuts the interest you pay during the draw, and it shrinks the base on which the repayment payment is built.
Run the logic with index numbers instead of dollars. Say you drew a balance of 100 units and paid only the interest minimum. At the end of the draw, the balance is still 100, and the repayment payment is built on all of it.
Now say you pay down 20% of the balance during the draw. You enter repayment owing 80. If the term and pricing stay the same, the repayment payment is roughly 20% lower. The math is proportional, because an amortizing payment scales with the balance. Exact terms depend on the lender’s guidelines, property type, leverage, and a full review of the borrower’s file.
| Path | Draw-end balance | Interest paid in draw | Repayment payment |
|---|---|---|---|
| Minimum only | Unchanged | Highest | Built on full balance |
| Steady extra principal | Lower | Lower | Proportionally lower |
| Lump sum before draw ends | Lower | Slightly lower | Proportionally lower |
A steady paydown saves more interest than a lump sum at the end, because each dollar stops accruing sooner. A lump sum still solves the payment-jump problem if it arrives before repayment starts.
That is the key idea. The draw period is where you control the size of the later payment.
Pricing That Floats Changes the Draw Payment
HELOCs usually carry variable-rate pricing. The federal brochure notes that with a variable rate, payments can change even if you draw nothing more. On the lines in our network, pricing floats across both the draw and repayment periods and never converts to fixed.
For an interest-only line, this has a direct effect. The payment is only interest, so every move in pricing flows straight into it. A fully amortizing line absorbs part of the change into the schedule. An interest-only line takes the full hit.
If you own several rentals and carry a floating second lien, that cost can erode your cushion without any change in rents. Paying principal is one way to cut your exposure to it.
What Changes When the Draw Ends
Once the draw ends, new borrowing stops and the balance amortizes. Ask CFPB says the draw period could last 10 years, for example. It adds that repayment is often over ten or 20 years and that payments are often significantly higher. In some cases the full amount is due as soon as repayment begins.
The brochure puts it a little differently. It says the lender may set a repayment schedule, often over ten or 15 years, or may require the whole balance at once as a balloon payment. Both sources agree on the direction: the payment goes up, sometimes sharply.
Three things decide how sharply:
- The minimum-payment formula you had during the draw.
- Whether you paid principal voluntarily.
- The length of the repayment term. A shorter term means a bigger jump.
On our network’s lines, a 5-year draw is followed by a 25-year fully amortizing repayment. On the 3-year structure, repayment runs 17 years. A shorter draw means you reach repayment sooner and face a shorter amortization afterward.
Where the General Rule Breaks
The idea that a HELOC is interest-only until the draw ends holds most of the time. Here is where it does not.
Required-principal lines. Some plans build principal into the minimum from day one. You still may not clear the balance by the end of the draw.
Balloon structures. Instead of amortizing, the entire balance may come due at the end of the draw. The exit is a refinance or a payoff. If neither is available, you have a problem.
Draw length is not standard. You will see draws from a few years to ten years and repayment terms from five years to 30. Do not assume your line matches an article’s example, including this one.
Renewal. Some lenders may renew or extend a line at the end of the draw. A refinance into a new HELOC restarts the draw clock, but it also restarts underwriting and fees.
Minimum draws. Some plans require an initial draw or a minimum balance. That can affect how much interest-only exposure you carry from the start. On both draw structures in our network, at least 75% of the line is drawn at closing.
Investment-property lines. These are a narrower product than owner-occupied lines. Which property secures the line, your home or a rental, changes the underwriting and the collateral at risk.
A vacant rental. The line payment is still due when the unit sits empty. Interest-only does not pause because the tenant left.
If any of these apply to you, read the agreement before you draw.
How These Lines Are Structured Through Lendmire’s Network
Lendmire is a broker. It arranges HELOCs through select wholesale partners and does not lend directly. Every figure below is subject to lender guidelines and full file review, and each applies only within its own structure.
The structure is a standalone line in first or second lien position. Two draw structures exist on primary residences and second homes: a 3-year interest-only draw with a 17-year fully amortizing repayment, and a 5-year interest-only draw with a 25-year fully amortizing repayment. Investment property lines run the 5-year draw and 25-year repayment structure only.
Maximum combined loan-to-value (CLTV) depends on occupancy and credit:
- Investment property: the ceiling is 70% CLTV, with a 700 minimum score and a line up to $500,000.
- Primary residence: the ceiling reaches 90% CLTV only at a 720 score or better, on lines up to $500,000. Lower scores step down through the tiers.
- Second home: the ceiling reaches 90% CLTV only at a 720 score or better, with a $500,000 maximum line.
Line size runs from $25,000 to $750,000. A line above $500,000 is for primary residences only, requires a 700 score or better (720 on the 5-year draw structure), caps at 75% CLTV, and requires a full appraisal. Exact terms depend on lender and investor guidelines, credit profile, reserves, and property review.
Qualifying debt-to-income is capped at 50% and is calculated on the interest-only payment at the maximum draw. Lines at or below $500,000 ordinarily use automated valuation instead of a traditional appraisal.
Title is the sharpest difference from a DSCR loan. The line must be held by the individual borrower or a revocable living trust. LLCs, corporations and partnerships cannot hold title. A rental already deeded to an LLC needs a vesting change or a DSCR cash-out instead.
These lines are available only in a subset of states, narrower than the DSCR footprint. Manufactured homes, co-ops, condotels and log homes are not eligible.
Where a HELOC Meets Your DSCR Loans
A HELOC and a DSCR loan answer different questions. A DSCR first mortgage qualifies primarily on property-level rental income covering the payment, subject to lender guidelines. A HELOC qualifies you as a borrower, through income, credit and debt-to-income.
DSCR compares rent to the full monthly obligation: principal, interest, taxes, insurance and any association dues. Many select programs start at a 1.00 ratio. A separate select-lender path goes below 1.00, with leverage and terms adjusted. Clearing 1.00 does not mean positive cash flow, since repairs, vacancy, management and utilities sit outside the calculation.
The HELOC creates three problems for a DSCR borrower.
The interest-only trap. A payment that looks light during the draw can fail on a fully amortizing basis. If the line is secured by the same rental, lenders differ on whether they count its payment, and on whether they count it interest-only or fully amortized. Ask before you draw.
Layered debt. A floating second lien on a rental portfolio can lower the coverage on the first mortgage if the lender counts it.
Recycling the line. Investors often draw for a down payment, repay from rent, and draw again. It works while rents hold and pricing is stable. It gets harder when the draw ends.
When the HELOC is an interim tool, the exit matters. For a rental held at least six months, a DSCR cash-out refinance tops out around 75% LTV across most of the network and may repay the line. That depends on credit, reserves and property review. Lenders in the network can place LLC-held rentals, subject to lender program eligibility. Every figure here varies by lender and program — guidelines, property type, leverage, and credit profile all apply.
For the full framework, see Lendmire’s complete DSCR loans guide.
Should You Pay Principal? A Decision Guide
Run through these in order.
1. Does your agreement require it? If yes, pay at least the minimum. If no, go to step 2.
2. Is your balance outstanding at repayment? If it is, a paydown before the draw ends lowers the repayment payment proportionally.
3. Is your pricing floating? If so, a lower balance means less exposure to future moves.
4. Do you need the liquidity? If you will redraw soon, paying principal and redrawing is a free round trip on most lines. If not, paying down is a cleaner exit.
5. Is there a better use for the cash? A rental down payment may earn more than the interest saved. Weigh that against the risk of being unable to refinance.
An honest read: if you know you will refinance or pay off before repayment starts, the minimum payment can be fine. If you are not sure, paying principal is the safer default.
What to Check in Your Agreement
Look for these terms before you sign or before you draw again:
- The minimum-payment formula and whether it includes principal.
- The draw length and the repayment term.
- Whether a balloon payment applies.
- How extra payments are applied, and how to mark them principal-only.
- Whether paid-down principal becomes available to borrow again.
- Early-closure or prepayment fees.
- Minimum draw amounts.
- Whether the line can renew.
Key Terms Defined
Draw period: The first phase of a HELOC, when you can borrow, repay and borrow again.
Repayment period: The phase after the draw ends, when borrowing stops and the balance is paid down on a schedule.
Interest-only payment: A payment that covers only the interest charged, so the balance stays the same.
Principal: The amount you borrowed, as opposed to the interest charged on it.
Revolving line: A credit line where repaid principal can be borrowed again.
Balloon payment: A lump sum for the full remaining balance, due at one time.
CLTV: Combined loan-to-value, the total of all loans on a property divided by its value.
Frequently Asked Questions
Can I make a principal-only payment during the draw period?
Generally yes. Many servicers apply anything above the interest due to principal, and some let you mark a payment principal-only. Confirm the process in your agreement, because a few lenders apply extra amounts to future payments instead.
Does paying principal lower my minimum payment?
On an interest-only line, the minimum falls because interest is charged on a smaller balance. How soon it falls depends on your billing cycle. At repayment, the payment is built on the balance you carry in, so a lower balance means a proportionally lower payment.
Can I re-borrow what I pay down?
On a standard revolving line, yes, until the draw period ends. Some lines add a short lag or a minimum draw amount. After the draw ends, borrowing stops.
Is a HELOC always interest-only during the draw?
No. Some plans include a slice of principal in the minimum payment. The federal HELOC brochure notes that the slice typically does not retire the balance by the end of the term, so you may still face a jump.
Does a HELOC payment count against my DSCR?
It depends on lender guidelines. If the line is secured by the same rental, some lenders count its payment, and they differ on whether they treat it as interest-only or fully amortizing. Ask your broker before you draw.
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.
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.
Investors who want the broader program framework can review how DSCR loans work.
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References
1. Bankrate
2. Experian
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: Does a HELOC Have a Waiting Period Before You Can Draw? · Does a HELOC Payment Count in Your Debt-to-Income Ratio? · Can You Get a HELOC on a Second Home or Rental?
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.