6 HELOC Disadvantages to Understand Before You Borrow

Homeowners have returned to the HELOC in a big way. Balances on home equity lines of credit reached $446 billion in the first quarter of 2026, according to the Federal Reserve Bank of New York, and they have climbed every quarter for four years now as owners look for ways to reach their equity without giving up the low rate on their first mortgage.

I understand the appeal. A HELOC lets you borrow against your home without refinancing your existing mortgage, you draw only what you need, and in the early years the required payment covers just the interest. A home equity loan, by comparison, carries a fixed rate with principal-and-interest payments from the first month. But in 45 years of mortgage banking, I have also seen how the HELOC can catch borrowers off guard, and that is what I want to walk you through here — the six challenges I ask people to consider before they open a line of credit against their home.

1. Variable Interest Rates Are Difficult to Manage

Nearly every HELOC carries a variable rate tied to the prime rate, which means your payment changes when the Federal Reserve acts. Borrowers who opened lines in early 2022 watched prime climb from 3.25% to 8.50% in about a year and a half. The cuts since then have brought prime back down to 6.75%, and the average HELOC rate stood at 7.44% at the end of July 2026. That is real relief, but it is not a guarantee. In my career I have seen prime above 20%, and I have seen it at 3.25%. Nobody can promise you where it goes next.

When the rate rises, your required monthly payment rises with it. If the new payment outgrows your budget and the loan goes unpaid, the lender can ultimately foreclose.

Did You Know? There is a HELOC alternative designed for homeowners 62 and older that requires no monthly principal-and-interest payment. Discover a different type of HELOC →

2. Payments at the End of the Draw Period Are Steep

The minimum payment on a HELOC during the draw period, which runs 10 years on most lines, covers interest only, and the line stays open for you to advance funds as you need them. Once the draw period ends, the loan changes character. It converts to principal-and-interest payments over a set repayment term or, with some lenders, the entire balance comes due at once as a balloon payment.

Here is what that looks like in dollars. On a $100,000 balance at the current 7.44% average rate, interest-only runs $620 a month. When that same balance converts to a 20-year repayment schedule, the payment becomes $802. On a 15-year schedule, it becomes $924. That increase arrives whether or not your income has changed, and if your loan carries a balloon instead, you will need to pay or refinance the full balance.

Expert Insight: “The HELOC borrowers I have seen get hurt are the ones who reach the end of the draw period without a plan. Know how you will handle the higher payment, or the balloon, before you ever open the line.”

3. Your HELOC Can Stand in the Way of a Future Refinance

A HELOC takes a second lien position behind your first mortgage. If you later want to refinance that first mortgage, your HELOC lender must agree to stay in second position, which the industry calls resubordination, or the line must be paid off and closed. Lenders do not have to cooperate, and I have watched a stubborn second lien hold up more than one refinance. Read the fine print on fees while you are at it. Many HELOCs carry an annual fee, and some charge a penalty for closing the line within the first few years.

Want out of your HELOC? See the benefits of refinancing it into a HECM →

4. Reduced Net Worth and Increased Expenses

Your home equity is part of your net worth, and every dollar you draw against it lowers that number. If you expect to sell in the next few years, count on your balance sheet to qualify for business credit, or want to leave the home to your children, the balance you build on a HELOC works against those goals.

Remember, too, that the payment does not stay where it started. Interest accrues on everything you have advanced, so the more of the line you use, the larger the required payment becomes, on top of the rate risk we covered above.

5. Greater Flexibility Leads to Increased Risk

Banks will often approve you for a larger line than the project that brought you in the door. Flexibility is the reason people choose a HELOC, but it is also where I see people get into trouble. When the money sits one transfer away, it has a way of funding vacations and everyday spending instead of the roof repair or remodel you opened the line for. The tax rules are unforgiving on this point: HELOC interest is deductible only when the funds are used to buy, build, or substantially improve the home securing the line. Use the money for anything else and you lose the deduction.

6. Your Line of Credit Is Not Guaranteed

This is the challenge borrowers least expect. Your lender can freeze the line or reduce your limit if home values in your area fall significantly or your financial situation changes. Those rights are written into your contract, and the CFPB’s HELOC booklet spells them out. We watched it happen on a large scale in 2008 and 2009, when banks froze lines across the country just as homeowners needed them most. If a HELOC is your emergency reserve, understand that the money can be pulled back at the worst possible moment.

Consider Alternative Financing Options

Before you commit to a HELOC, look at the full menu. A cash-out refinance replaces your first mortgage at one fixed rate, and years ago that was my standard advice. Today I tell most borrowers to slow down. With 30-year rates averaging 6.66%, giving up a 3% or 4% mortgage from 2020 or 2021 to pull out cash is a very expensive trade, so compare the combined cost of keeping your first mortgage and adding a second lien before you make that move. A fixed-rate home equity loan will give you a predictable payment without touching your first mortgage, and many lenders now offer fixed-rate locks on HELOC draws as well.

If you are 62 or older, compare the reverse mortgage line of credit before you decide. The federally insured Home Equity Conversion Mortgage (HECM) answers the two problems that concern me most about the HELOC: the lender cannot freeze or reduce the line because home values fall, and there is no required monthly principal-and-interest payment. The unused portion of the line grows over time, which means more borrowing power the longer you leave it alone. It costs more to set up than a HELOC, and you remain responsible for your property taxes, homeowners insurance, and the upkeep of your home.

Expert Insight: “A reverse mortgage line of credit is the only line of credit I know of that is guaranteed to be there when you need it. It cannot be frozen or reduced because of falling home values, and the unused portion grows larger every month.”

Compare side by side: See our HELOC vs reverse mortgage comparison →

Frequently Asked Questions

Every situation is different, and the right answer depends on what you want the money to do for you.

Ready to Compare Your Options? Use our reverse mortgage calculator to see what a guaranteed line of credit would look like on your home, or call us Toll-Free at (800) 565-1722. We will lay out the numbers both ways, and the decision is yours.