What is a HELOC and how does it work?

A HELOC (Home Equity Line of Credit) is a revolving credit line secured by your home equity. You can borrow up to a set limit, pay it back, and borrow again during the draw period (usually 10 years). You pay interest only on the amount you borrow, not the full credit limit. HELOC rates are variable and tied to the prime rate. Use the [HELOC vs cash-out refi calculator](/tools/finance/heloc-vs-cashout-refi) to compare the total cost of a HELOC to a cash-out refinance.

What is a cash-out refinance and when should I use it?

A cash-out refinance replaces your existing mortgage with a larger loan and gives you the difference in cash. You pay a fixed rate on the entire new loan amount for the life of the loan (usually 15 or 30 years). Use a cash-out refi if you need a large amount of equity, if current mortgage rates are lower than your existing rate, or if you want a fixed rate and predictable payment instead of a variable-rate HELOC.

Which is cheaper, a HELOC or a cash-out refi?

It depends on your current mortgage rate, the amount of equity you need, and current market rates. A HELOC is usually cheaper if you only need a small amount of equity or if your current mortgage rate is much lower than current refi rates. A cash-out refi is cheaper if you need a large amount, if current rates are lower than your existing rate, or if you want to lock in a fixed rate. The calculator shows the total interest paid for each option.

What are the closing costs for a HELOC vs a cash-out refi?

A cash-out refinance has closing costs of 2% to 5% of the new loan amount, including appraisal fees, title insurance, origination fees, and other charges. A HELOC often has minimal fees—some lenders charge no closing costs, while others charge $500 to $1,000. If you need $50,000 in equity and take a $300,000 cash-out refi, closing costs could be $6,000 to $15,000. The [HELOC vs cash-out refi calculator](/tools/finance/heloc-vs-cashout-refi) factors in these costs.

Can HELOC rates go up over time?

Yes. HELOC rates are variable and tied to the prime rate. If the Federal Reserve raises interest rates, your HELOC rate increases. If the prime rate is 8% when you open the HELOC and rises to 10% in two years, your monthly interest payment increases. This is the main risk of a HELOC compared to a fixed-rate cash-out refi. Some HELOCs have rate caps that limit how high the rate can go.

What if my current mortgage rate is lower than current rates?

If your current mortgage rate is lower than current refinance rates, a HELOC is usually the better choice. A cash-out refi would replace your low-rate mortgage with a higher-rate loan, increasing your total interest cost. For example, if you have a 3.5% mortgage and current rates are 6.5%, refinancing the entire loan at 6.5% is expensive. Keep your low-rate mortgage and take a HELOC for the equity you need.

How much home equity do I need to qualify for a HELOC?

Most lenders require you to have at least 15% to 20% equity remaining in your home after the HELOC is approved. If your home is worth $500,000 and you owe $250,000, you have $250,000 in equity (50%). A lender may allow you to borrow up to 80% to 85% of the home value minus the mortgage balance. Use the [mortgage amortization calculator](/tools/finance/mortgage-amortization-calculator) to see how much equity you have built.

Can I pay off a HELOC early without penalty?

Most HELOCs allow early payoff without penalty, but check your loan agreement. Some lenders charge an early closure fee if you close the HELOC within the first few years. If you plan to pay off the HELOC quickly, confirm there are no prepayment penalties before opening the line. Cash-out refis may also have prepayment penalties depending on the lender.

What happens to my HELOC if home values drop?

If home values drop significantly, the lender may freeze or reduce your HELOC credit limit to prevent you from borrowing more than the home is worth. This happened during the 2008 housing crash. If you have a HELOC and home values decline, you may lose access to part of the credit line even if you have not borrowed it yet. A cash-out refi gives you the cash upfront, so you are not affected by future home value changes.

Should I use a HELOC to pay off credit card debt?

It depends. A HELOC has a lower interest rate than most credit cards (8% vs 20% to 25%), so consolidating credit card debt into a HELOC can save money on interest. However, you are converting unsecured debt into secured debt. If you cannot pay the HELOC, the lender can foreclose on your home. Only use a HELOC to pay off credit cards if you are confident you can repay it and will not run up new credit card balances.

HELOC vs Cash-Out Refi Calculator

Enter your current mortgage details, the amount you want to borrow, and the terms of each option to see total interest paid, closing costs, monthly payments, and the break-even year where the refinance's lower rate pays back its upfront costs. Everything runs in your browser with nothing stored or transmitted.

How does the HELOC vs Cash-Out Refinance Calculator work step by step?

The [OnSumo HELOC vs Cash-Out Refi Calculator](/tools/finance/heloc-vs-cashout-refi) compares the total cost of accessing home equity through a Home Equity Line of Credit (HELOC) versus a cash-out refinance. This helps you decide which option is cheaper and fits your financial situation. You enter your current mortgage balance, interest rate, home value, amount of equity you need to access, and the rates available for a HELOC and a new mortgage. The calculator shows the total interest paid and monthly payments for each option over your chosen time horizon. A HELOC is a revolving credit line secured by your home equity, with a variable interest rate. You draw only what you need and pay interest only on the borrowed amount. A cash-out refinance replaces your existing mortgage with a larger loan, giving you the difference in cash. You pay a fixed rate on the entire new loan amount.

What does a typical HELOC vs Cash-Out Refinance Calculator result look like?

A homeowner has a $250,000 mortgage at 3.5% interest and a home worth $500,000. They need to access $50,000 in equity. Current mortgage rates are 6.5%, and HELOC rates are 8%. Option 1: Cash-out refi New loan amount: $300,000 at 6.5% for 30 years Monthly payment: $1,896 Total interest over 30 years: $382,560 Closing costs: $6,000 (2% of loan) Option 2: HELOC Keep existing mortgage: $250,000 at 3.5%, monthly payment $1,122 HELOC balance: $50,000 at 8%, interest-only payments for 10 years = $333/month, then pay down principal Total interest over 10 years: $40,000 (HELOC) + $75,000 (existing mortgage) = $115,000 In this case, the HELOC is significantly cheaper because the homeowner keeps their low 3.5% mortgage instead of refinancing it at 6.5%. Even though the HELOC rate is higher, it applies to only $50,000 instead of $300,000.

Frequently asked questions

What is a HELOC and how does it work?
A HELOC (Home Equity Line of Credit) is a revolving credit line secured by your home equity. You can borrow up to a set limit, pay it back, and borrow again during the draw period (usually 10 years). You pay interest only on the amount you borrow, not the full credit limit. HELOC rates are variable and tied to the prime rate. Use the [HELOC vs cash-out refi calculator](/tools/finance/heloc-vs-cashout-refi) to compare the total cost of a HELOC to a cash-out refinance.
What is a cash-out refinance and when should I use it?
A cash-out refinance replaces your existing mortgage with a larger loan and gives you the difference in cash. You pay a fixed rate on the entire new loan amount for the life of the loan (usually 15 or 30 years). Use a cash-out refi if you need a large amount of equity, if current mortgage rates are lower than your existing rate, or if you want a fixed rate and predictable payment instead of a variable-rate HELOC.
Which is cheaper, a HELOC or a cash-out refi?
It depends on your current mortgage rate, the amount of equity you need, and current market rates. A HELOC is usually cheaper if you only need a small amount of equity or if your current mortgage rate is much lower than current refi rates. A cash-out refi is cheaper if you need a large amount, if current rates are lower than your existing rate, or if you want to lock in a fixed rate. The calculator shows the total interest paid for each option.
What are the closing costs for a HELOC vs a cash-out refi?
A cash-out refinance has closing costs of 2% to 5% of the new loan amount, including appraisal fees, title insurance, origination fees, and other charges. A HELOC often has minimal fees—some lenders charge no closing costs, while others charge $500 to $1,000. If you need $50,000 in equity and take a $300,000 cash-out refi, closing costs could be $6,000 to $15,000. The [HELOC vs cash-out refi calculator](/tools/finance/heloc-vs-cashout-refi) factors in these costs.
Can HELOC rates go up over time?
Yes. HELOC rates are variable and tied to the prime rate. If the Federal Reserve raises interest rates, your HELOC rate increases. If the prime rate is 8% when you open the HELOC and rises to 10% in two years, your monthly interest payment increases. This is the main risk of a HELOC compared to a fixed-rate cash-out refi. Some HELOCs have rate caps that limit how high the rate can go.
What if my current mortgage rate is lower than current rates?
If your current mortgage rate is lower than current refinance rates, a HELOC is usually the better choice. A cash-out refi would replace your low-rate mortgage with a higher-rate loan, increasing your total interest cost. For example, if you have a 3.5% mortgage and current rates are 6.5%, refinancing the entire loan at 6.5% is expensive. Keep your low-rate mortgage and take a HELOC for the equity you need.
How much home equity do I need to qualify for a HELOC?
Most lenders require you to have at least 15% to 20% equity remaining in your home after the HELOC is approved. If your home is worth $500,000 and you owe $250,000, you have $250,000 in equity (50%). A lender may allow you to borrow up to 80% to 85% of the home value minus the mortgage balance. Use the [mortgage amortization calculator](/tools/finance/mortgage-amortization-calculator) to see how much equity you have built.
Can I pay off a HELOC early without penalty?
Most HELOCs allow early payoff without penalty, but check your loan agreement. Some lenders charge an early closure fee if you close the HELOC within the first few years. If you plan to pay off the HELOC quickly, confirm there are no prepayment penalties before opening the line. Cash-out refis may also have prepayment penalties depending on the lender.
What happens to my HELOC if home values drop?
If home values drop significantly, the lender may freeze or reduce your HELOC credit limit to prevent you from borrowing more than the home is worth. This happened during the 2008 housing crash. If you have a HELOC and home values decline, you may lose access to part of the credit line even if you have not borrowed it yet. A cash-out refi gives you the cash upfront, so you are not affected by future home value changes.
Should I use a HELOC to pay off credit card debt?
It depends. A HELOC has a lower interest rate than most credit cards (8% vs 20% to 25%), so consolidating credit card debt into a HELOC can save money on interest. However, you are converting unsecured debt into secured debt. If you cannot pay the HELOC, the lender can foreclose on your home. Only use a HELOC to pay off credit cards if you are confident you can repay it and will not run up new credit card balances.