Both a home equity line of credit (HELOC) and a cash-out refinance let you convert home equity into usable cash, but they work in fundamentally different ways — with different loan structures, cost profiles, and impacts on your existing mortgage. Choosing between them depends on how much you need to borrow, your current mortgage rate, and how you plan to use the funds.
How a Cash-Out Refinance Works
A cash-out refinance replaces your existing mortgage entirely with a new, larger loan, and you receive the difference between the new loan amount and your old mortgage balance as a lump sum at closing. Your original mortgage is paid off, and you now have a single new loan with its own rate, term, and monthly payment. For a full walkthrough of the process and requirements, see our cash-out refinance guide.
How a HELOC Works
A HELOC is a separate, second lien on your home that sits alongside your existing first mortgage rather than replacing it. It functions similarly to a credit card: you're approved for a maximum credit limit and can draw funds as needed during a "draw period," typically paying variable interest only on the amount you've actually borrowed. After the draw period ends, the loan generally transitions into a repayment period, where you pay down both principal and interest. Our guide to HELOC draw period vs. repayment period covers this transition in detail, and HELOC requirements explained covers typical qualification criteria.
Key Differences at a Glance
| Feature | HELOC | Cash-Out Refinance |
|---|---|---|
| Structure | Second lien, separate from existing mortgage | Replaces existing mortgage entirely |
| Rate type | Usually variable (some offer fixed-rate options) | Usually fixed for the full term |
| Access to funds | Revolving; draw as needed | Lump sum at closing |
| Existing mortgage rate | Unaffected — stays in place | Replaced by the new loan's rate |
| Typical closing costs | Often lower than a full refinance | Comparable to a full mortgage closing |
| Monthly payment | Interest-only during draw period, then amortizing | Fixed principal and interest from day one |
When a HELOC Tends to Make More Sense
A HELOC is often more attractive when your current mortgage rate is significantly lower than prevailing rates, since a cash-out refinance would require replacing that low rate on your entire mortgage balance — not just the amount you want to borrow. HELOCs also tend to suit situations where you don't need all the funds immediately, such as an ongoing renovation project where costs come in stages, since you only pay interest on what you've drawn. See using home equity for renovations for more on this use case.
When a Cash-Out Refinance Tends to Make More Sense
A cash-out refinance can make more sense when current mortgage rates are at or below your existing rate, since you'd be improving your primary mortgage terms while also accessing cash — effectively a two-for-one benefit. It also tends to suit borrowers who prefer the predictability of a single fixed-rate loan and fixed payment rather than a variable-rate second lien, and those who need a large lump sum for a one-time expense, such as debt consolidation or a major purchase.
Comparing Costs
Both options involve closing costs, though a HELOC's costs are often lower since it doesn't require replacing your entire mortgage — some lenders offer HELOCs with minimal or no closing costs, while a cash-out refinance typically involves the same range of costs as any mortgage refinance. See refinancing closing costs for typical fee categories on the refinance side. Because a HELOC's interest rate is usually variable, your payment can rise if benchmark rates increase, which is an important risk to weigh against a cash-out refinance's rate stability.
Impact on Your Overall Loan-to-Value
Both products increase your total borrowing against the home, so both affect your combined loan-to-value ratio and reduce your equity cushion. If you're on the edge of qualifying due to limited equity, it's worth reviewing refinancing with less than 20% equity for related considerations that can apply to either path.
Running the Numbers
Because the right choice depends heavily on your current mortgage rate relative to today's rates, the amount you need, and how quickly you need it, modeling both scenarios is worthwhile before deciding. A mortgage payment calculator can help estimate a new fixed payment under a cash-out refinance, while comparing that to an estimated HELOC payment during both the draw and repayment periods gives a fuller picture. A refinance break-even calculator is also useful for estimating how long it would take for a cash-out refinance's savings or costs to balance out against a HELOC alternative. Because both options put your home at risk if payments aren't kept current, reviewing the pros and cons of borrowing against your home before committing to either path is a reasonable step, and speaking with a lender about current rate offers on both products can clarify which is more cost-effective for your specific situation.