The Quick Read: The two options turn on one question: do you keep your current first mortgage or replace it? A cash-out refinance swaps your first loan for a bigger one and hands you the difference. A second mortgage leaves the first loan alone and adds a separate loan behind it. A cash-out refinance tends to suit homeowners whose current first loan is not worth protecting, or who want one payment. A second mortgage tends to suit homeowners with a first loan they like and a modest, specific need for cash.
Key Takeaways
- A cash-out refinance replaces your first mortgage. A second mortgage sits behind it and leaves it in place.
- “Second mortgage” is an umbrella term. It covers a home equity loan (a lump sum) and a HELOC (a revolving credit line).
- A cash-out refinance means one payment. A second mortgage means two.
- Conventional cash-out refinances cap out at 80% loan-to-value on a one-unit primary home. A second lender sets its own limit.
- Both loans use your home as collateral. Missing payments on either can put the home at risk.
Side-by-Side
Here is how the two compare on the points that decide most files. Every figure is a typical guideline, subject to lender guidelines and full file review.
Cash-out refinance estimate
The starting figures are an example value with a balance and a cash request in proportion. Replace them with yours.
Editable benchmark: 7.32% as of October 22, 2026 · Freddie Mac 30-year average via FRED®. A conventional market reference, not a cash-out refinance quote.
Illustrative starting assumptions: a $350,000 home value, a $193,000 current balance, the agency cap on a one-unit principal residence, a thirty-year term at the current Freddie Mac benchmark, and property taxes and insurance estimated at typical national rates. Every field is editable.
Illustrative estimate only — not a Loan Estimate, approval, quote, or commitment to lend. The rate field carries the weekly Freddie Mac thirty-year conventional benchmark, a market reference and not a cash-out refinance quote; a cash-out loan is priced by the lender at lock. The cash available is the loan the program cap allows less the balances paid off, before closing costs, which are not included. The HELOC line is the program’s combined loan-to-value ceiling applied to the same value and balance. Taxes and insurance are editable estimates. Licensed in sixteen states for consumer mortgages.
| Factor | Cash-Out Refinance | Second Mortgage |
|---|---|---|
| Your first mortgage | Paid off and replaced | Stays exactly as it is |
| Payments after closing | One | Two |
| How you get the money | Lump sum at closing | Lump sum or credit line |
| Leverage | 80% on one unit; 75% on 2–4 units | Set by the second lender |
| Credit floor | Wholesale programs start near 620 | Set by the second lender |
| Mortgage insurance | Generally none at 80% or less | Usually not part of the structure |
| Occupancy | Primary home; 75% on second homes | Varies by lender |
| Seasoning | 12 months on first loan; 6 on title | Varies by lender |
| Documentation | Full file plus an appraisal | Varies by lender |
Leverage here means loan-to-value, or LTV: the loan balance as a percentage of the home’s appraised value. For a second mortgage, the number that matters is combined LTV. That counts the first loan and the new loan together against the value. Occupancy drives leverage on the refinance side. A primary home gets 80% on one unit, and second homes and investment properties drop to 75%.
What Changes on Your First Mortgage
This is where the two paths split.
With a cash-out refinance, your whole first-mortgage balance moves into brand-new terms. That means a new interest rate, a new loan term and a new payment. Closing costs apply to the full new loan. Across the wholesale programs Lendmire places files with, that is the trade: one clean loan, but everything about your old one resets.
With a second mortgage, your first loan does not move. Its balance, term and interest rate stay put. The new loan carries its own terms and its own monthly payment. You pay the first lender and the second lender separately.
That difference is why the decision usually starts with your current first mortgage. If its terms are good, replacing it costs you something. If its terms are poor, replacing it may be the point. Lendmire’s cash-out refinance programs are built around the second situation: you want one new loan that pays off the old one and puts equity in your hands.
Lien order matters too. The first mortgage holds the first claim on the home. A second mortgage, also called a junior lien, gets paid only after the first. Because of that, second-lien lenders take more risk, and they set their own tests for equity and credit. They also tend to be more cautious about how much combined debt they will sit behind.
When a Cash-Out Refinance Is the Better Fit
A cash-out refinance fits best when replacing your first loan is something you would do anyway. Several situations point that way.
Your current first mortgage is no bargain. If the terms on your existing loan are not worth keeping, little is lost by retiring them. You can take equity out and reset the loan in one transaction.
You want one payment. Some homeowners do not want a second bill, a second lender and a second set of due dates. A cash-out refinance folds everything into a single loan.
You need a large amount. A big renovation or a major debt payoff can take more equity than a second lender will offer. A first-lien refinance often reaches deeper because the first lien carries the first claim on the home.
You have no mortgage at all. A home owned free and clear can still be cash-out refinanced. Under Fannie Mae’s cash-out rules, a new loan on a property with no mortgage lien counts as a cash-out transaction. In that case there is no first loan to protect, so the question is mostly about whether you want a lien on the home.
You want a fixed, predictable structure. A refinance on a thirty-year fixed loan gives you a payment that does not move. That can matter if the equity is paying off other debt and you want a stable budget.
The limits are real, though. Conventional cash-out refinances cap at 80% LTV on a one-unit primary residence and 75% on two- to four-unit homes, per the Fannie Mae Eligibility Matrix. That caps how much equity you can pull, and the matrix is updated, so figures are subject to lender guidelines and the current version.
Timing rules apply as well. The first mortgage being paid off must be at least 12 months old, measured from note date to note date. At least one borrower must have been on title for six months. There are exceptions for situations such as delayed financing, inheritance and legal awards. Freddie Mac’s Guide carries a parallel six-month on-title rule.
One more option exists on the wholesale side. A lane reaches 89.99% LTV with no mortgage insurance for borrowers with a 680 score and a 50% ratio. It requires a thirty-year fixed loan on a primary residence at a conforming balance, and it carries its own six months of seasoning. It is not written in Texas, where a cash-out on the homestead is capped by the state constitution. Eligibility is subject to lender guidelines.
When a Second Mortgage Is the Better Fit
A second mortgage fits best when your first loan is the asset you are protecting.
Your first mortgage has terms you want to keep. Replacing it would mean giving up something good just to reach your equity. A second loan lets you tap equity without touching it.
You need a smaller amount. A modest cash need does not justify refinancing a large first balance. Only the new loan carries new terms and new closing costs. Your first balance stays out of the transaction.
You want flexibility. A HELOC is a revolving line you can draw on over time. That suits ongoing or unpredictable costs, such as a phased renovation. The CFPB describes a home equity loan as a specific sum borrowed against equity, and a HELOC as a revolving line of credit.
You do not want to restart the clock. A refinance sets a new term. A second mortgage runs alongside the first, so your first loan keeps the years it has already worked through.
You are close to paying off the first loan. If the first balance is small, adding a short second loan may be simpler than rebuilding the whole mortgage.
The tradeoffs are clear. You carry two payments. Many second mortgages are adjustable, so the payment on a HELOC can change. The CFPB notes that lenders may freeze or reduce a HELOC line if your home’s value falls or your finances worsen. That is a real risk if you plan to count on the line later.
Run Your Own Comparison
You can sort most files with a few numbers. Gather your current first-mortgage balance, its interest rate and remaining term, your home’s likely value and the cash you need. Then work through these steps.
1. Find your current LTV. Divide your first-mortgage balance by the home’s value.
2. Check the room. On a one-unit primary home, a conventional cash-out refinance tops out at 80%. The gap between your current LTV and 80% is the most equity a refinance can release.
3. Compare the new first-loan terms with the old ones. Ask for a Loan Estimate on the refinance. See what you would give up and what you would gain.
4. Ask a second lender for its combined limit. Second lenders set their own ceilings, and some are lower than 80%.
5. Add up the full cost. A refinance spreads costs across a larger loan. A second mortgage adds a smaller loan with its own costs. Compare them on the same horizon, such as how long you plan to stay.
Now run a picture. Say a homeowner’s first mortgage is about 40% of the home’s value, and she wants cash equal to about 15% of the value. A cash-out refinance would replace the first loan with a new one at 55% LTV. A second mortgage would leave the 40% first loan in place and add a 15% loan behind it, for combined debt at the same 55% LTV. The leverage is identical, so the choice rests on her first loan’s terms. If those terms are strong, the second mortgage keeps them. If not, the refinance cleans things up. Final terms depend on lender guidelines, property type, leverage, and the borrower’s complete credit picture.
Now take a homeowner whose first mortgage is already near 70% of value. A cash-out refinance can add only about 10% of value before hitting the 80% cap. A second lender may allow more or less, depending on its own guidelines. For him, the equity ceiling may decide the question before the terms do.
What Lenders Look At
Both paths check the same basics: credit, income, debt, equity and the home itself. The details differ.
For a cash-out refinance, the wholesale conventional programs generally start at a 620 decision score. The automated underwriting finding governs most files, with a total debt ratio ceiling near 50%. Manually underwritten loans use tighter ratios of 36% or 45%, with reserve and score factors from the eligibility matrix. Waiting periods after credit events follow agency rules. They run four years from a chapter 7 discharge, seven from a foreclosure and four from a short sale or deed-in-lieu, and they can be shorter with documented extenuating circumstances. Freddie Mac also calls for a new appraisal and inspection report on cash-out files. Delinquent property taxes, if any, can be paid off in the new loan with an escrow account set up.
A property listed for sale must be taken off the market before the new loan is disbursed. On a primary-residence cash-out, lenders also expect every borrower on the loan to live in the home.
For a second mortgage, the second lender’s own rules apply. Some focus heavily on combined LTV. Some set higher credit floors than a first-lien program. The test is the same in spirit, but the numbers differ lender to lender, so ask for them.
The Risks Side by Side
Both loans are secured by your home. The CFPB’s home equity booklet warns that failing to make payments could put you at risk of losing your home through foreclosure. A second-mortgage default can lead to foreclosure even when the first mortgage is current.
The other risks differ:
- Cash-out refinance: You give up your old first-mortgage terms. You also pay closing costs on the full new balance, and the new loan may run longer than the one it replaced.
- Home equity loan: You take on a second payment. Depending on the lender, the interest rate may be fixed or adjustable.
- HELOC: The payment can change, and the line can be frozen or cut. Many HELOCs start with a draw period and later move to repayment, and the payment can jump at that point.
- Both: Borrowing against equity lowers your cushion if home values fall.
What Happens to a Second Lien You Already Have
Many homeowners already carry a second mortgage when they start comparing. That changes the picture.
A refinance that pays off your first loan has to deal with the second lien too. If the second was taken to buy the home, it can generally be paid off inside a refinance. If the second was taken for anything else, paying it off generally makes the deal a cash-out refinance. That affects leverage caps and seasoning.
You also have a choice. You can pay the second off in the refinance and end up with one loan. Or the second lender may agree to stay behind the new first loan, which is called subordination. That keeps the second loan alive but needs the second lender’s consent. Whether it agrees is its own decision.
Key Terms Defined
Home equity: The part of your home’s value you own outright. It is the value minus what you owe.
Cash-out refinance: A new first mortgage that pays off the old one and gives you the difference in cash.
Second mortgage: A separate loan secured by your home that sits behind your first mortgage. Also called a junior lien.
Home equity loan: A second mortgage paid out as one lump sum.
HELOC: A home equity line of credit. A revolving credit line secured by your home.
Combined loan-to-value (CLTV): All the loans on your home added together, as a percentage of its value.
Seasoning: The waiting period a lender requires before you can refinance or take cash out.
The Balanced Verdict
Neither option wins on its own. The better choice depends on what you are protecting and what you need.
Choose a cash-out refinance when you want one loan, you need a larger amount, or your current first mortgage is not worth keeping. Accept that your whole balance resets, and that you pay closing costs on the larger loan. Lendmire can help you see how much equity a refinance reaches on your file.
Choose a second mortgage when your first loan has terms you want to protect and your cash need is smaller or flexible. Accept two payments, and with a HELOC, accept that the line and the payment can change.
If you are close, compare real numbers rather than reputations. Ask for a Loan Estimate on each path. Then look at the total cost over the number of years you expect to hold the loan.
Frequently Asked Questions
Is a second mortgage better than a cash-out refinance?
Neither is better in every case. A second mortgage tends to win when your first loan has terms worth keeping and you need a modest amount. A cash-out refinance tends to win when you want one payment, need more equity, or your current loan is not worth protecting.
Does a cash-out refinance replace my second mortgage?
It can, if the second lien is paid off in the new loan. In that case you end up with one mortgage. If the second lender agrees to subordinate, the second loan can stay in place behind the new first. A second lien that was not taken to buy the home generally makes the refinance a cash-out transaction.
Is a HELOC a second mortgage?
Yes, when you already have a first mortgage. The CFPB treats both home equity loans and HELOCs as second mortgages, paid in addition to your first. A HELOC is revolving, so you borrow and repay as needed during the draw period. A home equity loan pays out as a lump sum.
Can I do a cash-out refinance right after buying?
Usually not. Under conventional rules, the first mortgage being paid off must be at least 12 months old. At least one borrower must also have been on title for six months. Exceptions exist for delayed financing, inheritance and legal awards.
How much equity can each option reach?
A conventional cash-out refinance caps at 80% LTV on a one-unit primary home and 75% on two- to four-unit homes. A second mortgage follows the second lender’s own combined LTV limit, which may be higher or lower. Program figures are subject to lender guidelines and full file review.
Where to Go From Here
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 brokerage serving homeowners and home buyers in 16 states. FHA, VA, conventional and jumbo purchase and refinance loans are arranged through wholesale lending channels; Lendmire brokers the financing and the lender underwrites each application. 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. Fannie Mae Eligibility Matrix
4. CFPB: Home Equity Loan vs. HELOC
6. Freddie Mac
7. CFPB: Using Your Home Equity Booklet
This article is part of Lendmire’s cash-out refinance program — full qualification details, guidelines, and scenarios live on the program page.
Related reading: Cash-Out Refinance Documentation for Pulling Equity From a Primary Home · Cash-Out Refinance Payoff Requirements for Your Existing Mortgage · How to Get the Maximum Cash From a Cash-Out Refinance
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
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Compliance and disclosures. Lendmire (NMLS# 2371349) is a licensed mortgage broker and is not a direct lender, depository institution, financial advisor, or tax professional. Content in this article is general market analysis and educational information — not financial, legal, or tax advice for any specific situation. Lendmire does not guarantee loan approval; every transaction is subject to underwriting by the funding lender. Mortgage pricing and loan program guidelines are subject to change at any time without notice and vary by borrower characteristics, property type, and state regulations. Lendmire complies with Equal Housing Opportunity. Licensure verification: NMLS Consumer Access.