The Quick Read: A conventional cash-out refinance replaces your whole first mortgage with a new, larger one, so your current low rate does not survive. It usually makes sense only when the cash solves a bigger problem than the rate reset creates. Otherwise, a loan that leaves your first mortgage in place often fits better. Everything below is subject to lender guidelines and full file review.
What a Cash-Out Refinance Actually Does
A cash-out refinance pays off your existing first mortgage with a new first mortgage on the same home. The new loan is bigger than the old balance. The difference comes to you as cash after the payoff, closing costs and any other liens are settled.
Here is the part that matters most if you are sitting on a low rate: the new rate applies to the entire balance, not just the cash. Borrow a modest amount on a large balance, and you still reprice every dollar. That is the lock-in problem in one sentence.
Fannie Mae’s Selling Guide describes the transaction the same way. The new first mortgage pays off the old one. It can also be written on a home with no mortgage at all. The cash can go to closing costs, to paying off other liens, or to “any purpose.” Freddie Mac likewise puts no specific limits on how you use the proceeds.
Across the wholesale programs Lendmire places files with, this is the first misunderstanding to clear up. Borrowers hear “cash-out” and picture a small add-on to the loan they have. It is a brand-new loan.
Lendmire arranges these loans as a broker, and its cash-out refinance programs sit alongside the other conventional options. The loan is placed with a wholesale lender, which does the underwriting and approval.
How Big Is the Lock-in, and Why Does It Matter?
Lock-in is the reluctance to sell or refinance because you would give up a cheaper mortgage for a pricier one. It is not a fringe problem. FHFA research finds that each percentage point by which market rates exceed a homeowner’s existing rate cuts the quarterly probability of sale by 18.1%. The same paper estimates that lock-in prevented 1.72 million sales across a two-year stretch.
You are in a large group. Roughly half of outstanding mortgages sit below 4%, per FHFA’s National Mortgage Database as reported by market commentators. So many homeowners hold equity they cannot touch without a trade-off.
That trade-off is the entire article. You gain access to equity. You give up the rate on your whole balance. The CFPB’s home equity guide warns that payments may rise and the payoff timeline may stretch. It also notes that cash-out loans are usually repaid over 30 years, so a loan you had paid down for years can effectively restart.
How the Loan Is Underwritten, Step by Step
Underwriting is the lender’s review of whether you and the home fit the program. For a conventional cash-out, it runs in a predictable order.
Step 1: The eligibility screen. Before anyone looks at income, the file has to clear two clocks. A borrower must have been on title for at least six months. The first mortgage you are paying off must be at least 12 months old, counted from note date to note date. Those are the agency standards, and they are why the clocks are separate. Exceptions exist, covered below.
Step 2: Occupancy and property. For a primary residence, the borrowers must live in the home. Occupancy sets the leverage. On a one-unit principal residence, the conventional cash-out cap is 80% loan-to-value (LTV), meaning the new loan can be up to 80% of the home’s value. On two- to four-unit principal residences, second homes and investment property, it is 75%.
Step 3: Credit and ratios. Across the wholesale conventional programs we place with, the floor starts at a 620 decision score. A 640 applies to an adjustable rate under manual underwriting. Most files run through automated underwriting, where the finding governs and the total debt-to-income (DTI) ceiling is 50%. DTI is your monthly debts, including the new mortgage payment, divided by your monthly income. Manually underwritten loans use 36% or 45%, with the reserve and score factors in the Fannie Mae Eligibility Matrix. Reserves are savings left after closing. The matrix notes that minimum reserves apply to automated cash-out files with DTI above 45%. It changes often, so check the current version.
Step 4: The new payment is the test. The qualifying payment includes principal, interest, taxes, insurance and any association dues. A bigger loan at a market-level rate makes that payment larger. DTI is where lock-in borrowers most often get stuck. Their income has not changed, but the payment they must qualify at has.
Step 5: Debt paydown at closing. If you use the cash to pay off other debts, those payments can come out of your DTI. That can offset the higher mortgage payment on paper. Treatment depends on the type of debt and how it is paid, so the lender confirms it file by file.
Step 6: The home’s value. Some refinance files qualify for “value acceptance,” where the automated system accepts an estimate and no appraisal is ordered. It depends on the finding and on prior appraisal data, and nobody can promise it ahead of time. Cash-out eligibility rules still apply either way. If the file is not eligible, an appraisal is required.
Step 7: Pricing. Fannie Mae applies loan-level price adjustments by credit score, loan purpose, occupancy, unit count and product. The Selling Guide says cash-out adjustments are in addition to any other applicable ones. You will not see them as a line item. You feel them in the rate or the cost. That is why a cash-out loan prices above a rate-and-term refinance on the same file, and why the gap is widest at higher leverage.
Step 8: Disclosure, closing and payoff. You receive a Closing Disclosure at least three business days before closing. On a refinance of your home, you then get a three-business-day right to cancel, and funds are disbursed after that period ends. The first mortgage and any other liens are paid, and what is left comes to you. Closing costs and prepaids can be financed into the loan, which is convenient but raises the balance.
Mortgage Insurance and the Equity You Leave Behind
On the standard conventional cash-out, the cap on a one-unit home is 80%, so about 20% of the home’s value stays as your equity. The CFPB says no home equity option converts all your equity to cash, and the cap is one reason why.
Mortgage insurance rarely enters a standard cash-out, because it applies to loans above 80% LTV. It is required above that line on conventional loans. You can request cancellation at 80% of the original value with good payment history, no subordinate liens and no decline in value. The servicer must end it automatically at 78%. Published typical annual premiums run 0.58% to 1.86% of the balance, which is a range and not a quote. Final terms depend on lender guidelines, property type, leverage, and the borrower’s complete credit picture.
One wholesale lane goes beyond the standard cap. It reaches 89.99% LTV with no mortgage insurance. It requires a 680 score and a 50% ratio on a thirty-year fixed rate, a primary residence and a conforming balance. It carries its own six months of seasoning. It is not written on a Texas homestead cash-out, where the state constitution caps leverage at the agency figure. Eligibility is subject to lender guidelines.
Your Options Compared
Before you commit to replacing a low-rate loan, line up what else gets you cash. Mechanics differ more than the marketing suggests.
| Factor | Cash-Out Refinance | HELOC or Second Lien |
|---|---|---|
| Your first mortgage | Replaced entirely | Stays in place |
| Rate applies to | Whole new balance | Only the new borrowing |
| Payment shape | One new loan | Two payments |
| Typical term | Often 30 years | Varies by product |
| Main risk | Lock-in rate lost | Line freeze or variable-rate exposure |
A second lien keeps your low first-mortgage rate untouched. It has its own pricing and underwriting, and it can complicate a later refinance of the first loan. Lenders handle that through subordination, which means the second lien agrees to stay behind the new first mortgage. We place conventional first-mortgage loans, so this page stays on that side. The point is to compare, not to assume.
How to Run the Comparison Yourself
You do not need a formula from a calculator. You need two scenarios built on the same cash amount, with the same home and the same timeline.
Scenario A: Replace everything. Ask for a Loan Estimate on a cash-out refinance for the amount you need. Note the new payment and the new loan’s term.
Scenario B: Keep the first mortgage. Keep your current payment. Ask for a Loan Estimate on a second lien for the same amount. Add its payment to your existing one.
Compare the totals. Look at combined monthly cost, total cost over the years you expect to stay, and what each option does to your balance. A cash-out refinance wins on simplicity. Keeping the first mortgage usually wins on cost when your existing rate is well below market.
The Loan Estimate is the same standardized form either way, so the comparison is fair. Compare the full terms, not just the monthly figure.
Break-even logic helps too. Resetting a low rate on the whole balance has a cost that grows with every year you hold the loan. The cash has to produce value, or retire costlier debt, for longer than that cost builds. Ask how long you plan to stay and what the money earns or saves. If the answer is “a short time” and “not much,” the reset is hard to justify.
When the General Rule Breaks
The rule of thumb for a lock-in homeowner is simple: leave the low-rate loan alone. These situations are where that rule bends.
- Your rate is not actually low. If your current rate is close to the market, the reset costs little, and a cash-out becomes a fair comparison.
- An adjustable rate is about to reset. Replacing it with a fixed loan can remove the uncertainty.
- A large one-time need exceeds what a second lien allows. Some needs are bigger than a second lien will reach.
- A buyout of a co-owner. Divorce and inheritance buyouts often require a new first mortgage to pay out the other party.
- Very costly debt. Paying off high-cost balances can shrink DTI and monthly obligations. The catch is that card debt becomes debt secured by your home, so a missed payment puts the house at risk, not just your credit.
Across the files this brokerage sees, debt consolidation and home improvement are the typical reasons borrowers pursue cash-out. A CFPB report on cash-out refinance borrowers points the same way. More than half of cash-out borrowers cited paying off bills or debts in earlier years, with home repairs second.
Named Edge Cases in the Rules
Rules have exceptions, and a few apply here.
Delayed financing. A buyer who paid cash can take cash out within six months of purchase. The purchase must be at arm’s length, and the source of funds must be documented. Lendmire’s piece Can a Homeowner Do a Conventional Cash-Out Refinance in Six Months? walks through that timing.
Inherited homes and legal awards. Both can shorten the title wait, with documents such as a will, probate papers or a court order.
Free-and-clear homes. A new mortgage on a home with no lien still counts as cash-out.
Past-due property taxes. Taxes more than 60 days past due can be financed into the new loan. An escrow account is generally set up.
Student loans. The cash-out pricing adjustment is waived when proceeds pay off eligible student loans for the borrower, a spouse or a dependent child.
Manufactured homes. Single-width manufactured homes are not eligible for cash-out under Fannie Mae’s product matrix. Check the current Eligibility Matrix.
Ineligible structures. Certain temporary buydowns, some PACE-loan situations and payoffs of installment land contracts are not eligible. Verify against the current guide.
Limited cash-out versus cash-out. A rate-and-term (limited cash-out) refinance pays off the first mortgage, closing costs and a purchase-money second lien, with only incidental cash back. It tops out at 95% LTV on a one-unit home. If you want real cash, it will not do. Paying off a home equity line in the same loan generally moves the file into full cash-out, so confirm how the lender classifies it.
Texas. Homestead cash-outs there follow a state constitutional limit. That is a one-line national note, not a Texas guide.
What the Decision Looks Like in Practice
Picture a homeowner with a low first-mortgage rate and a need for a big sum. She has built substantial equity and her income is steady. A conventional cash-out would reprice the whole balance, and her qualifying DTI would climb with the larger payment. The result could clear the ratio ceiling or it could not, and the lender decides after full review.
Now picture a second homeowner whose adjustable rate is about to reset. He wants a fixed payment, and the cash covers a repair that protects the home’s value. For him, replacing the loan is a defensible move.
Same product, opposite answers. The deciding factors are the same each time:
- Equity available under the LTV cap.
- Credit score and LTV band.
- DTI after the new, larger payment.
- Title and loan seasoning.
- Occupancy and unit count.
- Property type and appraisal result.
- Whether a HELOC or second lien is paid off or kept.
Honestly, this is a toss-up for many borrowers until they see two real Loan Estimates side by side. Run both before you decide. Tax treatment can depend on your situation; borrowers should speak with a qualified tax professional before relying on any deduction or credit.
Key Terms Defined
Cash-out refinance: A new first mortgage, larger than the old balance, that pays off the old loan and gives you the difference in cash.
Loan-to-value (LTV): The loan amount as a percentage of the home’s value.
Debt-to-income (DTI): Your total monthly debt payments divided by your gross monthly income.
Seasoning: The waiting period tied to how long you have owned the home or held the loan being paid off.
Loan-level price adjustment: A pricing add-on based on risk factors such as credit score, loan purpose and occupancy. It shows up as rate or cost, not a separate line.
Subordination: An agreement that moves a second lien behind a new first mortgage.
Frequently Asked Questions
Can I keep my low rate and still take cash out?
Not with a cash-out refinance. The new first mortgage replaces the old one, so the new rate covers the whole balance. A second lien, such as a HELOC or home equity loan, leaves the first mortgage in place, though it has its own pricing and underwriting.
How much equity can I take out?
Not all of it. On a one-unit primary residence, the standard conventional cash-out cap is 80% LTV, so about 20% stays in the home. Two- to four-unit homes, second homes and investment property cap at 75%. A separate wholesale lane reaches higher on a primary residence with stricter requirements. Eligibility is subject to lender guidelines and full file review.
Is seasoning just six months?
No, there are two clocks. A borrower must be on title for six months, and the first mortgage being paid off must be at least 12 months old. Delayed financing, inheritance and legal-award exceptions can change the first clock.
Can I cancel after closing?
For a refinance of your home, you generally have three business days to cancel. The period runs from the last of closing, delivery of the required disclosures and delivery of the cancellation notice. Waiving it is allowed only for a genuine personal financial emergency, in your own signed, dated statement.
Will I always need an appraisal?
Not always. Automated underwriting sometimes offers value acceptance on eligible refinances, which skips the appraisal. Nobody can promise that in advance. If the file does not qualify, an appraisal is required.
If you are weighing a cash-out refinance against keeping the loan you have, Lendmire can help you compare the programs and the equity each one reaches.
For your own numbers, request a scenario review with Lendmire.
About Lendmire
Lendmire (NMLS# 2371349) is a mortgage broker licensed for consumer lending in 16 states. Lendmire arranges FHA, VA, conventional and jumbo purchase and refinance loans through wholesale lenders; every file is underwritten by the lender under the applicable program guidelines. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.
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References
1. Fannie Mae Selling Guide B2-1.3-03, Cash-Out Refinance Transactions
2. Freddie Mac Seller/Servicer Guide 4301.5
3. FHFA Working Paper 24-03, The Lock-In Effect of Rising Mortgage Rates
4. CFPB, Using Your Home Equity guide
5. Fannie Mae Eligibility Matrix
6. CFPB: CFPB Report Finds Cash Out Mortgage Refinance Borrowers Improve Credit Scores
This article is part of Lendmire’s Conventional Loans series — every loan program’s qualification details, guidelines, and scenarios live on the loan options page.
Related reading: How Much Equity a Conventional Cash-Out Refinance Releases · Conventional Cash-Out Refinance Requirements at a Glance · Conventional Cash-Out Refinance Comparison Checklist for Homeowners
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
- Mortgage Loan Originator · NMLS# 1129696 · Verify on NMLS Consumer Access
- North Carolina Real Estate Broker · License# 343312 · Verify on NCREC
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Legal disclosures. Lendmire (NMLS# 2371349) is a state-licensed mortgage brokerage that arranges financing through wholesale lender relationships. Lendmire is not a direct lender, depository institution, or registered financial advisor. The discussion above is general informational content about real estate financing — it is not financial, legal, or tax advice, and readers should consult licensed professionals for guidance on their individual circumstances. Loan inquiries are subject to lender underwriting; this article does not represent a commitment to lend. Loan terms, rates, and qualification standards vary by borrower, property, and state, and are subject to change at any time. Equal Housing Opportunity. NMLS Consumer Access: nmlsconsumeraccess.org.