HELOC stands for home equity line of credit. It works like a credit card with your house behind it. A lender looks at what your home is worth, subtracts what you still owe, and gives you a credit line against part of the difference. You borrow only what you need, when you need it, and you pay interest only on what you’ve actually drawn.
That flexibility is why HELOC balances have grown for 17 straight quarters. It’s also why HELOCs surprise people. The rate usually moves with the prime rate, which went up in September. Payments can jump when the draw period ends. And the lender can freeze the line at the moment you need it most. This guide covers how a HELOC really works, what a $100,000 line costs each month, how much equity you need, and when a HELOC beats a home equity loan. It also walks through the situations where the usual advice falls short.
Nine Straight Answers About HELOCs
The questions people type into a search bar before they call a lender, answered first. The reasoning follows further down.
Home equity line of credit. “Line of credit” is the key part: you get a limit you can draw from repeatedly, not a lump sum.
Bankrate’s national average was 7.36% on October 21. Most HELOCs are variable, priced as the prime rate (now 7.00%) plus or minus a margin based on your credit and equity. Introductory rates are common and expire.
At 7.36%, about $613 a month if you pay interest only during the draw period. Once repayment starts, the same balance over 20 years runs about $797 a month, more if rates have risen.
Usually you need about 15% to 20% equity left over after the line is added. Many lenders cap total borrowing at 80% to 85% of the home’s value; a few go to 90%.
Your home is the collateral, the rate can rise, and the payment jumps when the draw period ends. The lender can also freeze or cut the line if your home’s value falls significantly or your finances change.
A HELOC is better for costs that arrive over time and for keeping a backup line. A home equity loan is better when you need one fixed amount and want a fixed payment. Its average rate was higher, about 8.63% for a 5-year loan.
Only if you itemize and the money is used to buy, build or substantially improve the home that secures the line. That rule is now permanent. Paying off credit cards or a car doesn’t qualify.
Yes. For a HELOC on your principal home, federal law gives you three business days after closing to cancel, and the lender must return the fees you paid.
It can be, especially if you’d otherwise give up a low first-mortgage rate with a cash-out refinance. But prime-linked rates went up in September and Fed officials expect more, so budget as if your rate will be higher next year.
How a HELOC Works, From Application to Payoff
A HELOC has two lives: a period when it behaves like a credit card, and a period when it behaves like a loan. Most problems come from people planning for the first and forgetting the second.
The lender sizes your line from your equity
The basic formula is the home’s appraised value times the lender’s limit, minus what you owe on the mortgage. On a $400,000 home with $200,000 owed and an 80% limit, that’s $320,000 minus $200,000, or a $120,000 line. Your credit score, income and existing debts can shrink that number; they rarely raise it.
You close, and the three-day clock starts
A HELOC on your main home comes with a right of rescission: three business days after closing to cancel for any reason. Saturdays count; Sundays and federal holidays don’t. Lenders typically don’t release money until that window passes, so plan around it if you’re paying a contractor.
The draw period: borrow, repay, borrow again
For a set time, often 10 years, you can pull money by transfer, check or card. Many plans require only interest during this stage. Every dollar you pay back becomes available to borrow again, just as with a credit card.
Your rate usually floats. Federal rules require the index (typically the prime rate) to be outside the lender’s control, and every variable-rate home loan must state a maximum rate. Find that lifetime cap in your agreement before you sign; it’s the worst case you’re agreeing to.
The repayment period: no more draws
When the draw period ends, the line closes to new borrowing and the balance is spread over the repayment period, often 20 years, with principal and interest. That’s the “payment shock” moment. Some plans instead require the whole balance at once (a balloon payment), so read this part of the agreement twice.
Payoff, often when you sell
Because a HELOC is secured by the house, it gets paid off at closing if you sell. If you close the line early, some lenders charge an early-closure fee, commonly within the first two or three years, to recover closing costs they waived.
When we ran the payment math, the number that stood out wasn’t the rate. It was the jump at year 10. At an unchanged 7.36%, a fully drawn $100,000 line goes from $613 to $797 a month, a 30% increase, simply because principal enters the payment. If the rate is two points higher by then, the payment lands near $923, half again what the borrower got used to. Households that budget for the draw-period payment are budgeting for the cheap half of the loan.
Do you need 20% equity for a HELOC?
Not exactly, but close. Lenders don’t ask how much equity you have today; they ask how much will be left after the HELOC is added. With an 80% limit, you keep at least 20% of the home’s value untouched. With an 85% limit, 15%. A handful of lenders go to 90%, usually with a higher margin. So someone with exactly 20% equity can’t borrow anything at an 80% lender, and might borrow only 5% to 10% of the home’s value at a more generous one.
Two details catch people. First, the appraisal sets the value, not your online estimate, and automated valuations can come in conservative in slow markets. Second, the limit applies to the full credit line, not what you plan to draw. If you want a $50,000 line for a roof but would accept $35,000, say so; a smaller line can sometimes squeeze under a lender’s cutoff or earn a better margin.
What Is the Interest Rate on a HELOC, and Why It Moves
HELOC rates are built in two pieces: an index that moves with the economy, usually the prime rate, and a margin that depends on you. Only one of those pieces is negotiable.
| Term | What’s typical | What to check |
|---|---|---|
| Rate type | Variable: prime plus or minus a margin | The margin, and how often the rate can change |
| Intro rate | Lower rate for 6–12 months on some offers | The rate it resets to afterward |
| Lifetime cap | Required by federal rules; often 18% or the state maximum | The worst-case payment at that cap |
| Draw period | Often 10 years | Interest-only or principal required? |
| Repayment period | Often 20 years | Any balloon payment |
| Upfront costs | Often low or waived | Early-closure fee if you close within 2–3 years |
| Ongoing fees | Annual fee on some lines | Inactivity or minimum-draw rules |
| Fixed-rate option | Some lenders let you lock part of the balance | The locked rate and any lock fee |
The prime rate rose to 7.00% after the Federal Reserve raised its benchmark by a quarter point on September 16, the first increase since 2023. Most HELOCs reset within a billing cycle or two of a prime change. The Fed’s next decision is October 28. Markets broadly expected a pause then, but most officials projected another increase by year end, and the December meeting is the one to watch. A quarter point on a $100,000 balance adds about $21 a month to an interest-only payment. That’s small on its own; three or four such moves are not.
What you can negotiate is the margin. We found that the advertised average hides a wide spread: borrowers with high credit scores and lots of equity often get prime or less, while thinner files pay a point or more above. Ask each lender for the margin in writing, not just today’s rate, because the margin is what stays with you for 30 years.
HELOC Calculator: Your Limit and Both Payments
Enter your home’s value and what you owe. The tool estimates your line, then shows the payment during the draw period and after it, which is the number most calculators leave out.
Estimates assume the full amount is drawn and the rate stays the same. Your lender’s credit and income review can lower the line.
We set the calculator’s defaults to the same $400,000 home used throughout this page. With $200,000 owed and an 80% limit, the line comes out to $120,000. Drawing $100,000 at 7.36% gives a $613 interest-only payment and a $797 repayment payment. Try typing 9.36 into the rate box to see what two Fed-sized years could do, or drop the repayment period to 10 years to see why paying principal early saves so much.
HELOC vs Home Equity Loan vs the Other Options
“HELOC vs home equity loan” is the comparison most people search, but it’s rarely a two-way choice. Here’s how the realistic options line up.
| Option | How you get money | Rate | Best for | Main catch |
|---|---|---|---|---|
| HELOC | Credit line, draw as needed | ~7.36% avg, variable | Projects paid in stages, backup funds | Rate and payment can rise |
| Home equity loan | One lump sum | ~8.63% avg, fixed | One known cost, steady budgets | Interest on the whole amount from day one |
| Cash-out refinance | New, larger first mortgage | ~7.32% avg 30-year | Owners whose current rate is already high | Replaces a low-rate mortgage |
| Personal loan | Lump sum, unsecured | Usually higher; credit-based | Smaller amounts, no home at risk | Shorter terms, bigger payments |
| Reverse mortgage line (62+) | Line backed by home equity | Variable; higher costs | Retirees who want no required payment | Upfront costs; balance grows |
The low-rate trap explains most of today’s HELOC boom. Millions of owners hold first mortgages far below the current 7.32% average. A cash-out refinance would reprice the entire balance at today’s rate just to free up some cash. A HELOC leaves that cheap first mortgage untouched and charges a higher rate only on the new money. That’s why the New York Fed counted HELOC balances at $459 billion in the second quarter, up about 11.6% from a year earlier.
A HELOC vs a home equity loan comes down to timing and temperament. If you’re replacing a roof for a quoted $28,000, a fixed home equity loan gives you a known payment, and you won’t pay much interest on money sitting idle. If you’re renovating a kitchen over eight months with change orders, a HELOC charges interest only on what you’ve drawn so far. If a rising payment would keep you up at night, the higher fixed rate is buying you sleep, and that’s a legitimate thing to pay for.
What Are the Disadvantages of a HELOC?
HELOC downsides are well known in general and badly understood in the details. These are the specific ways they show up.
Miss enough payments and the lender can foreclose, even if your first mortgage is current. That’s the biggest reason to be careful about using a HELOC to pay off credit cards: it turns debt that could only hurt your credit score into debt that can cost you your home. If the spending habits that built the card balance are still there, the cards often fill up again while the HELOC balance remains.
Variable rates follow prime, and prime follows the Fed. On top of that, the end of the draw period raises the payment even if rates don’t move. The two can land in the same year. Check the lifetime cap in your agreement and work out the payment at that cap. If the answer is frightening, ask about locking part of the balance at a fixed rate.
Federal rules let a lender stop new draws or lower your limit in a few specific situations. These include a significant drop in your home’s value, a material change in your finances that makes the lender reasonably believe you can’t repay, a default on a material term of the agreement, and certain government actions. A freeze is meant to last only as long as the reason does. The lender must send written notice with the specific reason within three business days after acting, not before. That timing matters if you’re counting on the line for a contractor’s next invoice.
We found this to be the least-known HELOC risk, and the arithmetic explains why it bites. On the $400,000 example home, the cushion between the line and the home’s value is $80,000. A 10% price decline, to $360,000, cuts that cushion to $40,000, exactly half. Under the federal safe harbor, that counts as a significant decline. Nobody would call a 10% dip a crash, yet it can be enough to close your line. Borrowers who opened a HELOC as an emergency fund learned this in 2008 and 2009, when lenders froze lines across whole regions.
Watch for an appraisal fee, annual fees, early-closure fees if you close within the first few years, and minimum draw requirements at closing. Interest is deductible only for home buying, building or substantial improvement, and only if you itemize. Most households take the standard deduction, so for many the tax break never materializes at all.
Good uses and risky uses, side by side
| Use | Verdict | Why | Guardrail |
|---|---|---|---|
| Roof, HVAC, structural repairs | Strong | Protects the asset that secures the loan; interest may be deductible | Get written bids first |
| Renovation that adds value | Good | Draw-as-you-go fits staged payments | Budget 15%–20% for overruns |
| Paying off high-rate cards | Conditional | Big rate savings, but the home is now at risk | Five-year payoff, cards put away |
| Down payment before selling | Conditional | Often cheaper than a bridge loan | Open before listing; plan for a slow sale |
| Emergency backup | Conditional | Cheap to keep open if unused | Keep some cash; lines can be frozen |
| Car, vacation, wedding | Risky | Long-term secured debt for short-lived spending | Use savings or a smaller unsecured loan |
| Investing in stocks or crypto | Risky | Variable-rate debt against volatile assets | Don’t put the house behind it |
The pattern in that table is simple: the longer the benefit lasts, the better the fit. A HELOC can stretch repayment across 20 years or more, so it makes sense for something that’s still paying you back in year 15, like a new roof or a kitchen that raises the home’s value. A vacation financed on a HELOC can still be costing interest long after the photos have faded. If the purchase wouldn’t make sense on a credit card you planned to pay off in a year, a longer, cheaper loan secured by your house doesn’t make it a better idea.
Which Situation Sounds Like Yours?
Most HELOC advice is written for a mid-career couple renovating a kitchen. Here’s how the decision changes for everyone else.
You can qualify. Under the Equal Credit Opportunity Act, lenders can’t refuse you because of your age, and they must count reliable Social Security, pension and annuity income. The question is whether you should. A fixed income can’t stretch to meet a rising rate or a payment jump in year 10, and a freeze could arrive just when a medical bill does.
If you’re 62 or older, compare a HELOC with a reverse mortgage line of credit under FHA’s Home Equity Conversion Mortgage program. It has higher upfront costs, but it requires no monthly mortgage payment as long as you live in the home and keep up taxes, insurance and upkeep. The unused portion of the line grows over time, and a decline in home value can’t be used to freeze it the way a HELOC can be frozen. A HUD-approved counselor session is required before you apply, and it’s free or low-cost.
This is the textbook HELOC case. Keep the cheap first mortgage and borrow only what you need on top. Before you close, ask whether the HELOC lender will agree to “subordinate,” meaning stay in second place, if you ever refinance the first mortgage. Without that agreement, a future refinance can stall.
Draw-as-you-go suits contractor payments, and the interest may be deductible if you itemize. Keep invoices and bank records that tie each draw to the work, because the deduction depends on how the money was spent. Leave a 15% to 20% cushion in your budget for overruns. Remember the three-day rescission window before the first draw when scheduling a contractor’s deposit.
The rate gap is real; cards charge far more than a HELOC. But consolidation works only with a written payoff schedule and the cards closed or put away. Set the HELOC payment to clear the balance in five years or less, well before any draw period ends. If the debt came from a job loss or medical crisis that’s still going, a nonprofit credit counselor may be a safer first call than borrowing against the house.
Opening a HELOC while you’re employed and the line sits unused can be smart, since many lenders charge little or nothing for an untouched line. Just don’t treat it as guaranteed money. The same downturn that costs you a job can trigger a freeze if home values fall or your finances change. Keep at least a few months of cash too, and check whether the lender charges an annual or inactivity fee.
The HELOC will be paid off at the sale, which is fine, but early-closure fees often apply in the first two or three years. Many lenders also won’t open a new HELOC on a home that’s listed for sale. If you’re planning to buy your next home before selling this one, open the line before you list. Our bridge loan guide explains why that order matters.
Expect lenders to ask for two years of tax returns and to use the net income after write-offs. A variable-rate payment on top of variable income is a double risk, so consider borrowing less than the maximum or locking part of the balance at a fixed rate. Some lenders also review your finances periodically during the draw period.
Fewer lenders offer HELOCs on non-primary homes, and those that do usually charge more and lend less against the value. The three-day right to cancel generally doesn’t apply, because it covers your principal dwelling. Rental property owners should also confirm whether the interest is a business expense; ask a tax professional.
Federal student loans come with income-driven options and protections a HELOC doesn’t have, so compare those first for tuition. For a parent’s care costs, a HELOC can bridge a gap such as a waiting period before long-term care insurance pays. Use a defined amount and timeline rather than an open-ended draw.
When Something Goes Wrong With a HELOC
Most HELOC trouble falls into a handful of patterns, and almost all of them are easier to fix early.
| What happened | Likely reason | Do this first | Then |
|---|---|---|---|
| Line frozen or cut | Value decline or change in finances | Read the notice; it must state the reason | Ask what’s needed to reinstate, such as a new appraisal |
| Payment jumped | Draw period ended or rate rose | Call the lender before missing a payment | Ask about fixed-rate locks, modification or refinancing |
| Rate higher than expected | Intro rate expired or prime rose | Check the margin in your agreement | Shop a refinance if your credit has improved |
| Balloon payment due | Plan requires full payoff at end | Start refinance talks a year ahead | Home equity loan or new HELOC |
| Can’t refinance first mortgage | HELOC lender won’t subordinate | Request a subordination agreement in writing | Pay down or close the HELOC first |
| Application denied | Equity, credit or debt-to-income | Read the adverse action notice | Fix report errors, borrow less, or try a credit union |
| Lender won’t respond to a dispute | Service problem | Put it in writing and keep copies | CFPB complaint or your bank’s regulator |
What is the margin over prime, in writing? Is there an intro rate, and what does it reset to? What is the lifetime rate cap? Is the draw period interest-only? What happens at the end of the draw period: amortization or balloon? Are there annual, inactivity or early-closure fees? Can I lock part of the balance at a fixed rate? Will you subordinate if I refinance my first mortgage?
Our Verdict
You’re paying for something lasting, such as a repair, a renovation, or a firm plan to clear high-rate debt. You want to keep a low-rate first mortgage. And your budget could absorb the repayment-period payment at a rate two points higher than today’s.
You need one known amount right away, or a rising payment would strain your budget. A home equity loan or a HELOC with a fixed-rate lock trades a slightly higher rate for certainty.
The money is for everyday spending or a vacation, your income is shaky, or you’d be counting on the line as your only emergency fund. In those cases the house is carrying risk it shouldn’t.
Questions people still ask
How long does it take to get a HELOC?
Often two to six weeks, depending on whether the lender needs a full appraisal. Some online lenders use automated valuations and fund faster. Either way, the three-day cancellation window on a principal home adds a few days after closing.
What credit score do I need for a HELOC?
Many lenders look for scores in the mid-600s or higher, and the best margins usually go to scores well above 700 with plenty of equity. Debt-to-income limits also apply, commonly in the low-to-mid 40% range.
Does opening a HELOC hurt my credit?
The application usually brings a hard inquiry, and a new account lowers your average account age slightly. A large balance relative to the limit may also affect some scoring models. Paying on time helps over the long run.
Can I pay off a HELOC early?
Yes. You can pay down the balance at any time during the draw period without losing access. Closing the account entirely in the first few years may trigger an early-closure fee.
What happens to my HELOC if I sell my house?
The balance is paid from your sale proceeds at closing, and the line is closed. Make sure your payoff estimate includes any early-closure fee.
Is a HELOC a second mortgage?
Usually, yes. If you have a first mortgage, the HELOC sits in second position. On a home with no mortgage, the HELOC becomes the first lien.
How this page was checked. HELOC and home equity loan averages come from Bankrate’s national lender surveys for October. Mortgage rates come from Freddie Mac’s weekly survey released October 22. The prime rate and Federal Reserve actions reflect the September 16 FOMC decision. HELOC balances come from the Federal Reserve Bank of New York’s second-quarter household debt report. Freeze, rescission and rate-cap rules come from Regulation Z and its official commentary. Tax treatment reflects IRS rules as made permanent by the One Big Beautiful Bill Act. Payment examples and charts are our own calculations. Your lender’s disclosures are the final word.
This page is independent and not affiliated with any lender. It is general information, not legal, tax or financial advice.
Key sources: Consumer Financial Protection Bureau · Federal Reserve · Federal Reserve Bank of New York · Freddie Mac · IRS · HUD