What Is a HELOC? Home Equity Line of Credit Definition
A home equity line of credit (HELOC) is a revolving credit line secured by your home, letting you borrow, repay and re-borrow up to a limit during a draw period of typically 10 years, followed by a repayment period of 10 to 20 years. Rates are usually variable and tied to the prime rate, so the payment moves with the market.
A HELOC is the cheapest large credit line most households can get — and the one where the collateral is the roof over your head.
Read the two periods before you sign. During the draw period you often pay interest only, which makes the payment look small; when repayment begins, the payment can triple because principal is now included. A $50,000 line at 8% costs about $333 a month interest-only, then roughly $607 amortized over 10 years — the same balance, nearly double the payment.
What a HELOC costs, and where the risk actually sits
| Feature | Typical range | What it means for you |
|---|---|---|
| Rate | Prime plus a margin, often 0.25% to 2% | Cheaper than a credit card or unsecured loan, and it moves with the prime rate |
| Draw period | 10 years commonly, sometimes 5 | Your window to borrow and repay. Interest is normally charged only on what you have drawn |
| Repayment period | 10 to 20 years | Long enough to matter, short enough that the minimum payment rises sharply when it begins |
| Closing costs | Often waived or reduced in exchange for a worse rate | Check whether the trade is permanent. A permanently worse rate to avoid a one-off fee is usually a bad deal |
| Appraisal | $300 to $700, sometimes not charged | Some lenders waive it during the draw period. Some do not, and it can be charged again at the repayment switch |
A HELOC is a variable-rate product in almost every case, so the rate quoted at closing is not the rate you keep. The shock most borrowers underestimate is not the rate but the minimum payment when the draw period ends, which is why the table above is worth testing against your own numbers before you sign anything.
HELOC or home equity loan: which one fits
These are two different products sharing the same collateral, and choosing the wrong one is expensive. A home equity loan is a fixed lump sum at a fixed rate, repaid like a mortgage. A HELOC is a revolving credit line that behaves like a credit card with your house behind it.
| HELOC | Home equity loan | |
|---|---|---|
| Rate | Variable, tracks prime | Usually fixed for the full term |
| Borrowing pattern | Intermittent: draw, repay, draw again | One amount, drawn once |
| Interest charged on | Only the balance you have drawn | The whole amount, from day one |
| Best for | Uncertain or lumpy expenses, or a safety margin | A known sum, or a rate you need certainty on |
| Main risk | Payment shock when the draw period ends | Paying interest on money you no longer need |
The expensive mistake is drawing a full HELOC for an expense you could have priced. You then pay interest on the entire limit while repaying it, which is precisely what a fixed equity loan exists to avoid. If the amount is known, borrow it once. If it is genuinely uncertain, a limit you do not fully draw is the cheaper instrument.
Draw period, repayment period, and the payment shock between them
The draw period is the flexible phase: you can borrow in tranches, repay, and borrow again, usually by card or transfer. Many lenders collect interest only during these years, which is why homeowners underestimate the eventual payment.
When the draw period ends, the line stops revolving and converts to an amortizing loan over the repayment period. On a $50,000 balance the interest-only payment of about $333 becomes roughly $607 a month if repaid over ten years. Budget for the second number from day one, not the first.
How much you can borrow depends on the combined loan-to-value ratio most lenders accept, commonly 80–85%. With a home worth $400,000 and a $260,000 mortgage, an 80% CLTV allows a line of $60,000; an 85% cap allows $80,000. The equity exists, but the lender's ceiling binds first.
Costs, and the risk that makes it different from a card
HELOC rates are commonly prime plus a margin. When the prime rate moves, your payment moves with it — unlike a fixed home equity loan. Many HELOCs also carry an annual fee, and a cancellation or early-closure fee if you pay the line off and close it within the first few years.
The structural risk is the collateral. A credit card default damages your credit score; a HELOC default can cost you the house, because the lender holds a second lien behind the first mortgage.
That is also why lenders can freeze or reduce a HELOC: a drop in the home's value, a decline in your credit score, or a financial setback can trigger a suspension of further draws under the terms most contracts allow. A line of credit you may not be able to draw on is a weaker safety net than it appears.
Frequently Asked Questions
What is a HELOC in simple terms?
A reusable credit line secured by your home's equity: borrow up to a limit during a draw period, repay, and borrow again. Interest is usually variable and the home is the collateral.
How is a HELOC different from a home equity loan?
A home equity loan pays a single lump sum at a fixed rate with a fixed repayment schedule. A HELOC is a revolving line with a variable rate, which suits staged projects and short-term needs.
What happens when the draw period ends?
The line stops revolving and the outstanding balance amortizes over the repayment period. If you were paying interest only, expect the payment to rise substantially.
Can the lender freeze my HELOC?
Yes. Most contracts let the lender suspend or reduce the line if the property value falls significantly, your financial circumstances deteriorate, or you breach the terms.