A HELOC is not a mortgage, though both are loans secured by your home

A HELOC (home equity line of credit) and a mortgage are different products that work in different ways, even though both use your house as collateral. A mortgage is a single loan you take out to buy a home or refinance one you already own. A HELOC is a revolving credit line — more like a credit card — that lets you borrow against the equity you have built in your home, pay it back, and borrow again.

The key difference is how you access the money and how you repay it. With a mortgage, you get one lump sum upfront and make fixed monthly payments over 15 to 30 years. With a HELOC, you draw money as you need it during a draw period (usually 5 to 10 years), then enter a repayment period where you can no longer borrow and must pay back what you owe.

Both are secured by your home, which means the lender can foreclose if you stop paying. But the structure, timing, and way you use the money are fundamentally different.

Key Takeaways

  • A mortgage is a single loan to buy or refinance a home; a HELOC is a revolving credit line you draw from as needed.
  • Mortgages have fixed monthly payments over a set term; HELOCs have a draw period when you borrow, then a repayment period when you pay back.
  • Both are secured by your home, so failure to pay can result in foreclosure.
  • Interest rates on mortgages are typically fixed; HELOC rates are usually variable and can change monthly.
  • You need home equity to open a HELOC, but you need a down payment and income to get a mortgage.

How a mortgage works versus a HELOC

A mortgage is a loan you receive in one payment to purchase a home or refinance an existing one. You agree to repay the full amount plus interest over a fixed period — commonly 15, 20, or 30 years. Your monthly payment stays the same if you have a fixed-rate mortgage, or it adjusts periodically if you have an adjustable-rate mortgage. You cannot borrow more money once the loan closes; you either pay it off or refinance.

A HELOC works more like a credit card. During the draw period, you can borrow up to your credit limit whenever you want, repay what you borrowed, and borrow again. You only pay interest on the money you actually use. Once the draw period ends, you enter the repayment period and can no longer borrow — you straightforward pay back the balance, usually over 10 to 20 years.

This structure makes a HELOC useful for ongoing expenses like home renovations, education, or debt consolidation, while a mortgage is designed for a single, large purchase.

Interest rates and payment structures

Mortgage interest rates are usually fixed, meaning your rate and monthly payment do not change for the life of the loan. Some mortgages have adjustable rates that start low and increase after a set period, but the payment structure is still predictable and set in advance.

HELOC interest rates are almost always variable, tied to a benchmark like the prime rate. Your rate can change monthly or quarterly, which means your monthly payment can go up or down. During the draw period, you may only pay interest on what you have borrowed. During the repayment period, you pay principal and interest, and your payment is usually fixed.

This difference matters for budgeting. A mortgage payment is predictable for decades. A HELOC payment can fluctuate, especially if interest rates rise.

What you need to may have access to for each

To get a mortgage, you typically need a down payment (often 3 to 20 percent of the home's purchase price), a steady income, an acceptable credit score, and proof that you can afford the monthly payment. The lender will verify your employment, review your tax returns, and pull your credit report. You do not need to own a home already.

To get a HELOC, you must already own a home and have built up equity — the difference between what your home is worth and what you still owe on your mortgage. Lenders typically let you borrow up to 80 or 90 percent of your home's value minus what you owe. You will also need a good credit score and proof of income, but the down payment requirement does not explore because you are borrowing against something you already own.

Risk and what happens if you cannot pay

Both a mortgage and a HELOC are secured loans, meaning your home is collateral. If you stop making payments, the lender can foreclose and sell your home to recover the money you owe. This makes both products riskier than unsecured loans like credit cards or personal loans, where the lender has no claim on your home.

The foreclosure process varies by state and by lender, but it typically takes several months and results in the loss of your home. Missing even one payment can damage your credit score and trigger the start of foreclosure proceedings.

Because a HELOC has a variable rate, there is an additional risk: if interest rates rise sharply, your monthly payment during the repayment period could become unaffordable. A mortgage with a fixed rate does not have this risk.

When lenders use the terms interchangeably

You may see the terms "mortgage" and "HELOC" used loosely in conversation or marketing, but they are not the same. Sometimes people call any loan secured by a home a "mortgage," but that is imprecise. A mortgage specifically refers to a loan used to purchase or refinance a home. A HELOC is a separate product category.

Some lenders offer products that blur the line — for example, a home equity loan, which is similar to a HELOC but gives you a lump sum instead of a revolving line. This is also not a mortgage, though it is secured by your home like one.

If you are shopping for a loan and see the word "mortgage," confirm whether the lender means a purchase mortgage, a refinance, or something else. The same goes for HELOC — ask whether the draw period and repayment period terms match what you need.

Frequently Asked Questions

Can I use a HELOC to buy a home?

No. A HELOC requires you to already own a home with equity. To purchase a home, you need a mortgage. Some people use a HELOC to fund a down payment on a second property, but the primary loan for that property would still be a mortgage.

What happens to my HELOC when the draw period ends?

You can no longer borrow money. You enter the repayment period and must pay back what you owe, usually over 10 to 20 years. Your lender may offer to renew the HELOC for another draw period, but that is not automatic — you have to request it and meet current lending standards.

Can I refinance a HELOC into a mortgage?

Not directly. A HELOC is a separate product from a mortgage. However, you could pay off your HELOC with cash, a personal loan, or by refinancing your primary mortgage for a larger amount. Some people do this to lock in a fixed rate before the repayment period begins.

Is a HELOC safer than a mortgage?

Neither is safer — both put your home at risk if you cannot pay. A HELOC with a variable rate carries additional risk because your payment can rise if interest rates increase. A fixed-rate mortgage is more predictable but still requires you to make payments or face foreclosure.