Home Equity Loan vs. HELOC: The Deep Dive on Draw Periods, Repayment, and Variable-Rate Risk

Published 2026-11-08 · eLoanTree Blog

You own a home, you have equity in it, and you need money — for a renovation, a major repair, or another large expense. Two products let you borrow against that equity without refinancing your first mortgage: a home equity loan and a home equity line of credit, or HELOC. They sound similar. They behave very differently, and the difference matters most years after you sign.

The short version: a home equity loan gives you a lump sum at a fixed rate with a fixed monthly payment. A HELOC gives you a credit line you can draw from, repay, and draw from again, usually at a variable rate, with payments that change over time. One is predictable. The other is flexible. You cannot have both at once from the same product, so the choice is about which risk you would rather carry.

1. The home equity loan: one lump sum, one payment

A home equity loan is a second mortgage. You borrow a fixed amount all at once — say $60,000 — and you receive the full amount at closing. The interest rate is usually fixed, and the monthly payment is the same every month for the whole term, commonly 10 to 30 years. You start repaying principal and interest immediately.

That predictability is the product's main strength: you know the payment on day one and it never changes. The weakness is that you borrow everything up front, so you pay interest on the full amount from the start, even if you do not need all of it yet. And because it is a second lien on your home, missing payments can lead to foreclosure.

2. The HELOC: a credit line in two phases

A HELOC is a revolving line of credit secured by your home. It works like a credit card with a large limit: you are approved for a maximum — say $80,000 — and draw only what you need, when you need it. You pay interest only on what you have drawn, and repaying some makes that credit available again.

A HELOC has two distinct phases, and understanding them is the whole game:

• Draw period — typically 10 years. You can borrow, repay, and re-borrow up to your limit. Minimum payments are usually interest-only on the outstanding balance. If you draw $50,000 and your rate is 8%, your interest-only payment is about $333 a month (illustrative example, not a market rate: $50,000 × 8% ÷ 12). The balance does not shrink unless you voluntarily pay principal.
• Repayment period — typically 10 to 20 years. The line freezes. You cannot draw any more money. Whatever balance is outstanding becomes a fully amortizing loan: every payment now includes principal plus interest, calculated to bring the balance to zero by the end of the term.

The transition between the two phases is where borrowers get hurt. The U.S. Consumer Financial Protection Bureau (CFPB) warns that monthly payments are often significantly higher once the repayment period begins, and that some agreements require the entire balance to be repaid when the draw period ends — a balloon payment.

3. The payment shock, in numbers

Take that same illustrative $50,000 balance. During the draw period at an illustrative 8%, the interest-only payment is about $333 a month.

Once the repayment period begins and that balance amortizes over 15 years at the same rate, the payment rises to roughly $478 a month — about a 43% jump before any rate change (illustration from HELOC guidance reviewed October 2026). If rates also rose during the draw period, the jump is bigger still.

4. Variable-rate risk: prime plus margin

Almost all HELOCs carry a variable rate, calculated as an index plus a margin: HELOC rate = index + margin. The index is almost always the Wall Street Journal prime rate, which moves with the Federal Reserve's federal funds rate. The margin is set by your lender when you open the line and does not change.

The prime rate was 7.00% as of October 29, 2026 (Federal Reserve H.15 release). A HELOC priced at prime plus a margin would therefore move up or down whenever the prime rate moves. If the Fed raises rates, your HELOC payment rises even if you borrow nothing new.

If the Fed cuts rates, your payment falls. Some plans let you convert part or all of a balance from variable to fixed, usually at a higher rate than the variable rate — you pay for the predictability.

5. Which one fits which job?

A home equity loan fits a single, known expense — a $60,000 roof and kitchen job with a firm quote, for example. You know the amount, want a fixed payment, and do not need to borrow again later.

A HELOC fits an expense that comes in stages or in unknown amounts: a renovation that will take two years, or a series of repairs where you are not sure of the total. You draw as each bill arrives and pay interest only on what you have used. It also fits a borrower disciplined enough to pay principal voluntarily during the draw period, so the repayment phase does not arrive as a shock.

A HELOC fits poorly when the borrower needs a predictable payment, is already stretched month to month, or is borrowing for something that will not last as long as the loan — a vacation, for example, repaid over 20 years.

6. The tax question, handled carefully

HELOC interest is only tax-deductible if the funds were used to buy, build, or substantially improve the home securing the loan, under the Tax Cuts and Jobs Act. Interest on money used for other purposes — paying off credit cards, for example — is generally not deductible. Tax rules change and individual situations vary, so check with a tax professional rather than treating this as tax advice.

7. Questions to ask before you sign

Ask the lender in writing: What is the rate, and is it fixed or variable? For a HELOC, what is the index and the margin? How long is the draw period, and what happens when it ends — amortizing payments, or a balloon? What are the fees, and what is the maximum rate the HELOC can reach? If you cannot answer the payment-shock question — what will my payment be in year 11? — you are not ready to sign a HELOC.

8. The bottom line

A home equity loan is a loan. A HELOC is a credit line with two lives: a flexible, interest-only decade, then a repayment period that can raise your payment sharply. The HELOC's flexibility is real, and for staged expenses it is often the better tool.

But its variable rate and two-phase structure mean the payment you sign up for is not the payment you will always have. Choose the product whose worst case you can live with, not just whose first payment looks smallest.

Educational only — eLoanTree is not a lender or broker and does not make loan decisions, guarantee rates or approval, or collect documents or SSNs.