HELOCs Can Preserve Low Mortgage Rates When Borrowing Cash
A cash-out refinance changes the rate on the entire mortgage, while a second loan leaves the existing first mortgage intact.

Homeowners with a mortgage rate well below today’s offers may find a HELOC or home equity loan less costly than a cash-out refinance. Both create additional debt while preserving the rate, term and payment schedule on the current first mortgage. A cash-out refinance replaces that loan and applies its new rate to the full balance, including the cash withdrawn.
For example, someone owing $300,000 at 3.5% and seeking $50,000 would keep the lower rate on the original balance with a second mortgage. Refinancing would instead place the entire $350,000 under the new loan’s terms. That can make a second mortgage cheaper overall even when its individual rate is higher. The Federal Housing Finance Agency says most active U.S. mortgages have rates below current market levels.
A HELOC offers reusable borrowing during its draw period, but its variable rate can change payments. A home equity loan provides the money upfront and may offer fixed payments. Refinancing combines everything into one mortgage and may work better for a large amount, a rate close to the existing one, or simpler payments. Comparing monthly payments, fees and total interest matters because lenders set their own terms, and a longer repayment period can raise the overall cost.
Why it matters: The choice determines whether new borrowing changes the cost of the entire mortgage or only the additional money borrowed.
- The Mortgage Reports