A Home Equity Line of Credit (HELOC) is a revolving line of credit backed by your home equity. Used wisely, it’s one of the most flexible financial tools available to homeowners. But, because your home is the collateral, the stakes are real. We asked a top financial advisor exactly when it makes sense, and when it doesn’t.
- A HELOC gives you flexible access to your home equity and generally only charges interest on what you actually use.
- Opening a HELOC before you need one can serve as a powerful emergency backstop, as long as you have the income and equity to support it.
- The biggest HELOC mistake people make is taking on a large balance without a plan to pay it down when interest rates rise.
Home Equity Line of Credit (HELOC)
A Home Equity Line of Credit (HELOC) is a revolving line of credit. Think of it like a credit card, but backed by the equity in your home. You borrow what you need, pay it back, and borrow again, up to your approved limit.
Seems like a feasible resource for any homeowner, right?
It depends. We interviewed Thomas Kopelman, CEO of AllStreet Wealth, to elaborate on when these lines of credit make sense and when they don’t.
How Does a HELOC Work?
Before we get into our interview, here’s a quick primer on how HELOCs work –
How your borrowing limit is calculated:
Lenders typically limit your total secured debt based on your combined loan-to-value (CLTV) ratio, not just your primary mortgage. Many lenders cap CLTV at approximately 80% to 85% of your home’s appraised value, though this can vary.
- Your home is worth $600,000
- You owe $450,000 on your mortgage
- Your equity is $150,000
- Max total debt at 80% CLTV = $480,000 (80% x $600,000)
- Maximum HELOC = $30,000 ($480,000 – $450,000)
Your available credit line may also be adjusted based on credit score, income, debt-to-income ratio, and lender-specific underwriting criteria.
The two phases of a HELOC:
Draw Period (typically 5-10 years): During this phase, you can borrow against your approved credit line, repay, and borrow again as needed. Minimum payments are often interest-only, although some lenders allow or require principal payments. HELOCs usually have variable interest rates tied to an index (such as the prime rate), though some lenders offer fixed-rate conversion options on outstanding balances.
Repayment Period (typically 10-20 years): Once the draw period ends, you can no longer access additional funds. You must repay both principal and interest, typically on an amortizing schedule. Payments generally increase compared to the draw period and may fluctuate if the interest rate remains variable.
One key feature: you only pay interest on what you use. Interest is incurred only on the outstanding balance, not the full credit limit. If you open a $100,000 HELOC but do not draw funds, you generally will not owe interest, although some lenders may charge annual or maintenance fees.
Balloon payments: Beware, some HELOCs include a balloon payment, requiring full repayment of any remaining balance at the end of the draw period. However, many modern HELOCs convert to a fully amortizing repayment schedule instead.
Always review the loan terms to determine whether a balloon payment applies.
Interview with Thomas Kopelman
Because many of his clients are in strong financial positions, Thomas Kopelman often suggests establishing a HELOC even without an immediate borrowing need. We spoke with him about the rationale, appropriate use cases, and key risks.
When Should You Open a HELOC?
The Little CPA: Thomas, you often recommend that homeowners open a HELOC even before they need it. What’s the thinking there?
Thomas Kopelman: “Oftentimes, a HELOC is best used as a backup emergency fund. The goal is not to use it to buy things you cannot afford, but to let it be there just in case you ever need it.”
The Little CPA: So what conditions make it the right time to open one?
Thomas Kopelman: “You pay interest based on how much you use. If you open one for $100K but don’t use it, you are not paying interest on it. It’s best to use when interest accrues at a fixed rate, in a low interest rate environment, when you have plenty of equity in the home, and when you’re in a strong financial position overall.”
In short, the best time to open a HELOC is before you desperately need one — when your finances are healthy enough that you probably won’t have to use it.
When Should You NOT Open a HELOC?
The Little CPA: Who should stay away from a HELOC?
Thomas Kopelman: “I would not recommend this for people who will have no income and no plan to pay this back. You typically want to be in a strong position — have cash on the sidelines, not have high-interest debt, etc.”
The Little CPA: What about using a HELOC to fund a new business?
Thomas Kopelman: “A HELOC for starting a business is less of a good idea than using cash. I would rather use cash and have the HELOC as a backup in case you needed it.”
Bottom Line: A HELOC is a tool for people with financial stability, not a lifeline for people who are already stretched thin.

How Do You Manage the Risks?
The Little CPA: What’s the biggest mistake you see people make with HELOCs?
Thomas Kopelman: “Way too many took these out with large balances, did big home projects, and now the interest rate is high and they cannot pay them down. You need to properly plan for repayment when the time comes. Make sure you have enough cash flow to actually pay the loan down.”
This is the core risk that doesn’t get enough attention. A HELOC is secured debt; your home is the collateral. If you can’t repay, you could lose it.
Understanding the difference matters:
– Secured debt is backed by an asset the lender can seize if you default (like your home or car).
– Unsecured debt has no collateral — think credit cards, personal loans, and student loans.

Does Debt Consolidation Into a HELOC Make Sense?
The Little CPA: Can you walk us through when consolidating debt into a HELOC actually makes sense?
Thomas Kopelman: “This can be a good strategy if someone has a bunch of high-interest debt like personal loans, credit cards, etc. Normally, consolidating all debt into a HELOC allows you to move your other debt into a way lower interest loan.”
The Little CPA: So what’s the tradeoff?
Using a HELOC to pay off unsecured debt reduces interest cost in many cases, but it converts that debt into an obligation secured by the home. This materially increases the potential downside if repayment becomes difficult. If life gets hard and you miss payments, the consequences are much more serious.
Debt consolidation using a HELOC is generally more appropriate when:
- There is a defined and realistic repayment plan.
- Income is stable and sufficient to support repayment.
- Home equity levels remain conservative after the new borrowing.
- Interest savings meaningfully exceed fees, rate risk, and closing costs.
How Is a HELOC Better Than a Credit Card or Personal Loan?
The Little CPA: In plain terms, why might a HELOC beat a credit card or personal loan?
Thomas Kopelman: “They can be way better than credit cards or personal loans just because the rates are normally lower. Though, I would not recommend someone use this for daily spending at all. It typically makes sense for funding housing projects or something along those lines.”
In general, HELOCs provide lower-cost borrowing due to being secured by real estate, but that same feature increases the consequences of nonpayment.
HELOC vs. Home Equity Loan: What’s the Difference?
A HELOC isn’t the only way to borrow against your home equity. A Home Equity Loan is a common alternative, and they work very differently.

Quick example:
Let’s say you have a one-time, predictable expense—like replacing your roof—and you know the total cost will be about $20,000. In that case, a home equity loan may be a better fit. You receive the funds as a lump sum, lock in a fixed interest rate, and repay it in equal monthly installments over a set term, which makes the cost easier to plan for.
Now consider a project like converting your garage into an apartment, where costs come in stages—permits, materials, labor—and the total may evolve over time. In that scenario, a HELOC may be more appropriate. You can draw funds as needed during the draw period rather than borrowing the full amount upfront. Because most HELOCs have variable interest rates and may allow interest-only payments initially, your monthly payments can change over time, especially once the repayment period begins.
What About the Tax Implications?
HELOC interest can affect your tax liability. And, in true tax code fashion, the rules aren’t always straightforward.
For a full breakdown of the mortgage interest deduction, the Alternative Minimum Tax (AMT), and when HELOC interest is and isn’t deductible, check out: Is Interest on Home Equity Loans and HELOCs Tax-Deductible?
Frequently Asked Questions (FAQ)
What is a HELOC?
A Home Equity Line of Credit (HELOC) is a revolving line of credit secured by your home. It allows you to borrow against available home equity up to an approved limit. Interest accrues only on the outstanding balance, not the full credit line.
When is the best time to open a HELOC?
A HELOC is typically easiest to qualify for when you have substantial home equity, stable income, and strong credit. Some financial professionals suggest establishing a HELOC before funds are needed so it can serve as a contingent liquidity source. Suitability depends on individual circumstances and should be evaluated in the context of your overall financial plan.
What happens if I can’t repay my HELOC?
Because a HELOC is secured by your home, failure to repay can result in default and potentially foreclosure. This is the primary risk borrowers should understand before opening a line of credit.
Can I open a HELOC and never use it?
Yes. If you do not draw funds, you generally will not owe interest. However, some lenders may charge annual, inactivity, or maintenance fees even if the line is unused.
Is HELOC interest tax-deductible?
Interest may be deductible if the funds are used to buy, build, or substantially improve the home that secures the loan, subject to IRS limitations. Deductibility depends on how the proceeds are used and your individual tax situation.
What is a balloon payment on a HELOC?
Some HELOCs include a balloon feature, requiring full repayment of any remaining balance at a specified point (often at the end of the draw period). However, many HELOCs instead transition to a fully amortizing repayment period. Loan terms vary, so confirm the structure with your lender.
What credit score do I need for a HELOC?
Minimum requirements vary by lender, but many look for a credit score in the mid-600s or higher. More favorable terms are generally available to borrowers with higher credit scores, lower debt-to-income ratios, and sufficient home equity.
How is a HELOC different from a Home Equity Loan?
A HELOC is a revolving credit line that allows you to draw funds as needed, typically with a variable interest rate. A home equity loan provides a one-time lump sum with a fixed interest rate and set repayment schedule. HELOCs are generally used for ongoing or uncertain expenses, while home equity loans are more suited to fixed, predictable costs.
Is a HELOC Right for You?
Based on Thomas’s interview, here’s a simple gut-check –
A HELOC may be appropriate if you:
- Have substantial home equity and meet lender credit and underwriting standards.
- Have stable, verifiable income and a defined repayment strategy.
- Need ongoing or intermittent access to funds rather than a single lump sum.
- Understand the interest rate structure (typically variable) and are comfortable with potential payment fluctuations.
Use caution if you:
- Have unstable income or limited monthly cash flow to support repayment.
- Carry high-interest debt without a clear and realistic payoff plan.
- Are considering using a HELOC for recurring expenses or speculative purposes (such as starting a business) without sufficient financial reserves.
- Have not evaluated how payments may change when the draw period ends and amortizing repayment begins.
Before proceeding, consider consulting a qualified financial professional or licensed advisor who can evaluate your full financial picture and the specific terms offered by the lender.
About the Expert
Thomas Kopelman is the Co-Founder of AllStreet Wealth, a financial planning firm, and an Investopedia Top 100 Financial Advisor. He works primarily works with ultra-high-net-worth founders, executives and professionals in their 30s, 40s and 50s who want to build wealth with intention.
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