Cash-out refinance: how it works, costs, and when it makes sense

A cash-out refinance replaces your existing mortgage with a larger loan, letting you convert home equity into cash. This glossary entry covers how cash-out refinancing works, the costs involved, LTV limits, tax implications, and how it compares to HELOCs and home equity loans.

Updated August 2026

US 5 min read

A cash-out refinance lets you tap your home equity by replacing your mortgage with a larger loan and pocketing the difference. It can fund renovations, consolidate debt, or cover major expenses — but it resets your mortgage term and adds closing costs. Understanding the break-even and rate tradeoff is critical before proceeding.

Definition

A cash-out refinance replaces an existing mortgage with a new, larger loan secured by the same property. The borrower receives the difference between the new loan amount and the existing mortgage payoff as cash. The new loan typically has a higher balance, a new interest rate, and a new 15–30 year term.

How the cash-out math works

Example: $500,000 home, $250,000 existing mortgage, 75% LTV cash-out
Home appraised value$500,000
× Max LTV (75% conventional)$375,000
− Existing mortgage payoff$250,000
− Closing costs (~3%)$11,250
= Cash to borrower$113,750
New mortgage balance$375,000 @ new rate

Cash-out refi vs HELOC vs home equity loan

FeatureCash-out refiHELOCHome equity loan
First mortgage affectedYes — replaced entirelyNo — kept intactNo — kept intact
Rate typeFixed (new first mortgage rate)VariableFixed
Closing costsFull (2–5% of new loan)Low or waived2–5% of loan
Best when existing rate isAt or above current marketWell below currentWell below current
Max LTV (primary)80% (conventional)85–90%85–90%

External references

Common questions

How does a cash-out refinance work?

In a cash-out refinance, you replace your existing mortgage with a new, larger loan. The new loan pays off your old mortgage, and you receive the difference in cash at closing. For example: home worth $500,000, existing mortgage $250,000, cash-out refi to $375,000 (75% LTV) — you receive $125,000 cash and have a new $375,000 mortgage. The CFPB cash-out refinance guide covers the mechanics and what to watch for.

What is the maximum LTV for a cash-out refinance?

Conventional (Fannie Mae/Freddie Mac) cash-out refinances are capped at 80% LTV for primary residences. FHA cash-out refinances allow up to 80% LTV. VA cash-out refinances allow up to 90% LTV for eligible veterans. Investment properties have tighter limits — typically 70–75% LTV. These limits mean you must retain at least 20% equity in your home after the cash-out. The Fannie Mae cash-out refinance guidelines detail the LTV requirements and eligibility.

Is cash-out refinance interest tax deductible?

Only the portion of the new loan used to "buy, build, or substantially improve" the home is deductible under the Tax Cuts and Jobs Act. Cash-out proceeds used for other purposes (debt consolidation, vacation, investments) are not deductible. The deduction applies to combined mortgage debt up to $750,000 (for loans after December 15, 2017). The IRS Publication 936 on home mortgage interest and IRS Topic 505 govern deductibility.

How does a cash-out refi compare to a HELOC or home equity loan?

A cash-out refinance replaces your entire first mortgage — so you pay closing costs on the full balance and take a new rate on the entire amount. It makes sense when the new rate is near or below your current rate. A HELOC or home equity loan keeps your existing mortgage intact and adds a second loan — better when your first mortgage has a rate you don't want to lose. In 2027, many homeowners with 2020–2022 loans at 3% avoid cash-out refis to preserve their rate. The CFPB equity access comparison guide covers all three options.

What are the closing costs on a cash-out refinance?

Cash-out refinance closing costs typically run 2–5% of the new loan amount — similar to a purchase closing. On a $375,000 new loan, costs of 3% = $11,250. These costs can be paid at closing or rolled into the loan balance (increasing the amount borrowed). Use the Loan Estimate to compare cash-out refinance offers from at least three lenders — Section A fees (origination charges) are negotiable.

When does a cash-out refinance make the most sense?

Cash-out refinancing is most advantageous when: (1) your current rate is at or above the new refinance rate (no rate penalty for replacing it); (2) you need a large, one-time sum; (3) the alternative is high-rate debt (credit cards at 20%+ are definitively cheaper to replace with a 7% mortgage); or (4) the home improvement funded will increase the property's value. Check the Freddie Mac PMMS to see current refinance rates relative to your existing loan rate before deciding.

Model your new payment after a cash-out refinance on the mortgage calculator — or compare rate/break-even with the refinance break-even calculator.