Homeowners Weigh HELOC and Refinancing Options When Mortgage Rates Rise

Homeowners with low mortgage rates can access home equity through either a HELOC or home equity loan without changing their current rate, whereas a cash-out refinance replaces the existing mortgage with a new loan at current market rates. The choice depends on comparing total monthly payments, upfront costs, and overall interest expenses, as the lowest advertised rate does not necessarily result in the lowest total cost. Experts caution that refinancing applies the new rate to the entire mortgage balance, which can be significantly more expensive than taking out a second mortgage when rates have risen.

When homeowners access equity through a second mortgage product rather than refinancing, they preserve the favorable terms of their original loan while borrowing additional funds at prevailing market rates. This strategy proves particularly advantageous in environments where mortgage rates have climbed substantially since the original loan was issued. The Federal Housing Finance Agency's data indicates that a significant majority of active mortgages in the United States were originated at rates lower than those currently available, creating a financial incentive structure that favors keeping existing mortgages intact.

The comparison between these three equity-access methods requires evaluating multiple variables simultaneously: the cumulative monthly obligations across all debt products, the aggregate fees and closing costs, and the total interest paid over time. Borrowers often fixate on advertised interest rates in isolation, overlooking how applying a higher rate to an entire mortgage balance—as happens with cash-out refinancing—can generate substantially greater costs than accepting a higher rate on only the borrowed increment through a second mortgage.