HELOC or Cash-Out Refinance? How to Decide When Your First Mortgage Rate Is Low

If you bought or refinanced when rates were lower than today's, then when you need money for a roof, an addition or to consolidate other debt, the real question isn't just which loan has the lower rate. It's what happens to the rate you already have.

The short answer: a cash-out refinance replaces your whole mortgage at today's rate. A HELOC leaves your first mortgage alone and charges its rate only on what you borrow. When your current rate is well below today's rates, a HELOC can cost less overall. When your current rate is at or above today's rates, a cash-out refinance deserves a close look.

How each option works

Home equity line of credit (HELOC). A HELOC is a revolving line of credit secured by your home. You can borrow up to a limit during a draw period and then enter a repayment period, when you can no longer borrow and payments are typically higher. HELOCs generally have a variable rate, so the payment can change from month to month (CFPB).

Cash-out refinance. You replace your current mortgage with a new, larger one and receive the difference in cash. You end up with one loan, but the new rate applies to the entire balance, including the part you'd already been paying off at your old rate.

Side by side

HELOC Cash-out refinance
Effect on your first mortgage Unchanged Replaced
Rate applies to Only the amount you draw The entire new balance
Rate type Usually variable Depends on the mortgage you choose
Closing costs Varies; ask for a quote Similar to a new mortgage
How you get the money Draw as needed Lump sum at closing
Loan term Draw period, then repayment Starts over with a new mortgage term
Main risk Rate and payment can rise; payment steps up at repayment Giving up a low rate on the whole balance

Why your current rate decides it

With a HELOC, you keep paying your existing low rate on the bulk of what you owe and pay the HELOC rate only on the new money. With a cash-out refinance, everything you owe moves to the new rate. Even when a HELOC's rate is higher than a refinance rate, the combined cost can be lower, because the higher rate applies to a much smaller balance.

The way to see this is your blended rate: the average rate across both loans, weighted by balance.

Blended rate = (1st mortgage balance × 1st mortgage rate + HELOC balance × HELOC rate) ÷ total balance

Plug in your own balance and rate along with real quotes, then compare the blended rate with the cash-out refinance rate. A Guardian loan officer can run this with you.

When a cash-out refinance can make more sense

Risks to weigh with a HELOC

A decision checklist

  1. Write down your current rate, balance and years remaining.
  2. Get real quotes for both a HELOC and a cash-out refinance, including closing costs.
  3. Calculate your blended rate with the HELOC.
  4. Price the HELOC's repayment-period payment, not just the interest-only payment.
  5. Ask yourself how long you'll keep the house and how soon you'll repay the borrowed amount.
  6. If you're consolidating debt, make a plan so the cards don't fill back up.

HELOCs at Guardian Savings Bank

Guardian's HELOC is available to homeowners whose first mortgage is with Guardian Savings Bank. If yours isn't, a loan officer can talk with you about a cash-out refinance. Common uses include home renovations, debt consolidation, college tuition and building an emergency fund, and Guardian offers interest-only payment options.

Because Guardian Savings Bank services its own mortgages, your HELOC and your first mortgage sit with the same bank, with one place to call with questions. Talk with one of our HELOC experts, explore refinance options, or call (513) 643-0788.

Equal Housing Lender. NMLS #449474. Subject to credit approval. All home lending products are subject to credit and property approval. Rates, program terms and conditions are subject to change without notice. This article is for educational purposes only.