A HELOC normally adds a second lien and preserves the first mortgage. A cash-out refinance replaces the first loan with a larger new mortgage and delivers the difference in cash.
Preserve or replace the first mortgage
If your current mortgage has an attractive rate, repricing its entire balance may be expensive. A HELOC prices only the additional borrowing, so compare the blended cost of both liens.
Revolving line vs. lump sum
A HELOC is designed for repeated or staged needs. Cash-out refinancing provides proceeds at closing and typically uses a fully amortizing payment.
Closing costs and break-even
Cash-out refinancing may carry higher total closing costs because it replaces the larger first loan. Divide upfront costs by expected monthly savings to estimate a break-even period.
Rate and payment risk
HELOC balances are often variable. Cash-out mortgages are frequently fixed. Model the expected holding period, rate changes and how quickly the borrowed amount will be repaid.
Frequently asked questions
Questions homeowners ask
Which option has the lower rate?
Cash-out first mortgages may price below a HELOC, but the rate applies to the entire refinanced balance. The blended and total cost matter more.
Which closes faster?
Timelines vary by lender, appraisal, title and documentation. A HELOC can be simpler, but speed is not guaranteed.
Can I use both?
A property can sometimes support multiple liens within CLTV limits, but the complete debt load must qualify.