How a HELOC works: a plain-English guide
A HELOC is a line of credit secured by your home that works like a credit card with a borrowing limit, except the limit is set by your home equity and the interest rate is much lower because the loan is backed by your house.
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What a HELOC actually is
A HELOC stands for home equity line of credit. It is a second loan on your home that gives you access to a pool of money. You can pull from that pool, pay it back, and pull again during a set window of time.
Think of it like a credit card with a much bigger limit and a much lower rate. The limit is based on your home equity. The rate is lower because the loan is backed by the house itself.
A HELOC is not the same as a home equity loan. A home equity loan is one lump sum at closing with fixed payments. A HELOC is a flexible line you can draw from over time. Both are second mortgages, but they work very differently.
A HELOC is also not a refinance. Your first mortgage stays in place. The HELOC sits behind it in second position. If your first mortgage has a low rate, you keep it. See how that compares with a cash-out refinance.
How your equity becomes a credit limit
Your line size is set by your home value, your first mortgage balance, and a lender cap called CLTV. CLTV stands for combined loan-to-value, which is total mortgage debt divided by home value. For definitions of other technical terms used on this page, see the HELOC glossary.
On a primary residence, the cap is 85 percent CLTV. On an investment property, the cap is 70 percent.
Home value: $500,000
First mortgage balance: $200,000
85 percent of $500,000 is $425,000 total allowed mortgage debt.
Subtract the $200,000 first mortgage and you have up to $225,000 of available HELOC line.
That available line is the maximum. Your actual approved amount also depends on credit, income, and other underwriting factors. See the full qualification rules.
Want to model your own numbers? Run them through the HELOC calculator for a quick estimate of your line.
The draw period and the repayment period
A HELOC has two phases. The draw period comes first. The repayment period comes second.
Draw period
During the draw period, you can pull money from the line. You make interest-only payments on the balance you have drawn. As you pay the balance back down, that credit becomes available again.
Repayment period
When the draw period ends, the line enters repayment. You can no longer draw new funds. Your monthly payment recalculates to pay off the remaining balance over the rest of the term.
Term options
Choose your total term at application. Each option has a fixed draw period followed by a fixed repayment period. The four terms below are common examples. Different HELOC products may offer different draw and repayment combinations.
Pick the term that matches how long you want flexible access and how long you want to pay the balance back.
How HELOC payments are calculated
Your payment is based on your balance, not your line size. If your approved line is $100,000 but you only drew $20,000, you pay on $20,000.
During the draw period, payments are typically interest-only. If you draw more, the payment goes up. If you pay the balance down, the payment goes down.
When repayment starts, the payment recalculates. It now includes both principal and interest, sized to pay off the balance by the end of the term.
Want to see your payment at different draw amounts? Run the numbers first. For the full fee picture, see HELOC rates, fees, and closing costs.
See your real HELOC rate in minutes.
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How interest works on a HELOC
Most HELOCs are variable-rate loans. Your rate is built from two parts: an index and a margin. The index is a published rate that moves with the market. The margin is set by the lender at closing and stays the same for the life of the loan.
When the index moves, your rate moves with it. When the index holds steady, your rate holds steady. The margin never changes.
For the full breakdown of how your rate is built, the indexes used, and current pricing, see the HELOC rates page.
What you can use a HELOC for
A HELOC is general-purpose. Most lenders place few restrictions on how you spend the funds. Common uses we see at Lender Express:
- Home improvement projects, kitchens, bathrooms, additions
- Paying off higher-rate credit card debt
- College tuition and education expenses
- Setting up an emergency reserve you only tap if needed
- Down payment on an investment property
- Medical expenses, major purchases, business funding
Some uses are restricted in specific states or by specific lenders. Your loan officer flags any restrictions before you commit.
HELOC vs other ways to access equity
Three products give you cash from your home equity. Each works differently. Each fits a different situation.
Line of credit
Draw, repay, redraw during the draw period. Variable rate typically. First mortgage stays in place. Funds in about a week. Best for spread-out or uncertain costs.
Lump sum at closing
Single fixed-rate loan with fixed payments. First mortgage stays in place. Funds in 2 to 4 weeks. Best for a known one-time cost.
New first mortgage
Replaces your first mortgage with a new, larger loan at today’s rate. Fixed rate typically. 30+ days to fund. Best only when your current first rate is high.
For the full side-by-side, see HELOC vs cash-out refinance or HELOC vs home equity loan. If you already have a low first mortgage rate you want to protect, see how to access equity without giving up your low rate.
What can go wrong with a HELOC
A HELOC is a useful tool. It is also a loan secured by your home. Three risks to know before you sign.
Variable rate exposure
Most HELOCs are variable rate. If the index rises, your rate rises with it. The payment goes up. Build a cushion for that in your budget.
Payment shock at end of draw
During the draw period, payments are typically interest-only. When the line enters repayment, the payment recalculates to include principal. That can be a meaningful jump. Know what your repayment-period payment will look like before you draw a large balance.
Foreclosure risk
The HELOC is secured by your home. If you stop making payments, the lender can foreclose. Treat the HELOC like any other mortgage: pay it on time, every time.
For the full risk disclosure, see HELOC risks and disclosures.
How to get one
The digital HELOC application takes about 10 to 15 minutes. A soft credit check returns a real rate offer. There is no impact on your credit score from the soft pull.
If you like the offer, you complete the rest of the application online. Most files fund within a week of approval.
For the full step-by-step, see how to apply for a HELOC. Or check your rate now.
Find My HELOC RateQuestions about how a HELOC works
Is a HELOC the same as a home equity loan?
No. A home equity loan is a one-time lump sum with fixed payments. A HELOC is a line of credit you can draw from, pay down, and draw again during the draw period. The home equity loan is better for a known, fixed expense. The HELOC is better for expenses that spread out over time.
What is the maximum I can borrow with a HELOC?
The maximum is set by your equity and the lender’s combined loan-to-value cap. Primary residences typically cap at 85 percent CLTV. So if your home is worth $500,000 and you owe $200,000, your available equity is up to $225,000 at 85 percent CLTV.
Do I have to take all the money at closing?
On the digital HELOC, the full approved amount is drawn at closing. After closing, you can redraw funds as you pay down the balance during the draw period. That is different from older traditional HELOCs that worked entirely on a draw-as-needed basis.
What happens at the end of the draw period?
The HELOC enters the repayment period. You can no longer draw new funds. Your monthly payment recalculates to pay off any remaining balance over the repayment period, which runs 7 to 25 years depending on the term you selected.
Can my HELOC rate change?
Yes, most HELOCs are variable-rate products. Your rate moves with a published index, typically the prime rate. The lender’s margin stays the same. Your loan documents disclose how often the rate can change and any rate caps that apply.
What if my home value drops after I open a HELOC?
The lender has the right to freeze or reduce your available credit if the property value drops significantly. The terms of when that can happen are disclosed in your loan agreement. Drawn funds you have already taken do not go away, but new draws may be limited.
Can I pay off a HELOC early?
Yes, there is no prepayment penalty. If you pay off more than 90 percent of your original draw before a certain point, an early payoff (EPO) fee may apply. Your loan documents disclose the exact terms.
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