The Quick Read: The test is simple to state. Add up what your old mortgage and your old debts cost you over the time you will really hold them. Then compare that total to the full cost of one new, larger mortgage over the same time. Fees, a reset loan term and a bigger balance secured by your home all belong in that comparison.
Key Takeaways
- A lower monthly payment is not the same as a lower total cost. A longer term can raise total interest even when the payment drops.
- The new loan reprices your entire balance, including the part that was your old mortgage. It does not reprice only the new cash.
- Paying off cards or personal loans makes the refinance a cash-out loan. Cash-out has tighter leverage than a rate-and-term refinance.
- Compare every option over the number of years you expect to keep the loan, not over the full term.
- Moving debt into your mortgage does not erase it. It changes the debt from unsecured to secured by your home.
What Does the Blended Cost of a Cash-Out Refinance Mean?
Blended cost is the weighted cost of everything you owe today, set against the all-in cost of the single loan that replaces it. No agency defines the phrase. It is a method, and it works because it forces an apples-to-apples comparison.
Many people compare the rate on the new mortgage to the rate on the old one. That misses the point. A homeowner with a low-rate mortgage and a high-cost card balance is comparing two stacks, not two rates.
Here is the stack on the “today” side:
- Your current mortgage balance, its rate and its remaining months.
- Each debt you plan to pay off, with its balance, rate and remaining months.
Here is the “new” side:
- One mortgage, with one rate and one term.
- Closing costs, paid in cash or added to the balance.
- Any mortgage insurance or program premium.
A simple average of rates is wrong, because a small card balance and a large mortgage do not weigh the same. You weight each debt by its balance. Large balances pull the blended figure toward their own rate.
Is It a Cash-Out Refinance or a Rate-and-Term Refinance?
If any proceeds pay off credit cards, auto loans or personal loans, it is a cash-out refinance. Many borrowers assume a refinance can absorb a few debts. It cannot. That distinction decides how much you can borrow.
A rate-and-term refinance, sometimes called a limited cash-out refinance, replaces your first mortgage. It can also cover closing costs and a second lien that was used to buy the home, with only incidental cash back. Across the wholesale programs we place files with, that product reaches 95% loan-to-value on a one-unit primary residence. (Loan-to-value, or LTV, is the loan balance divided by the home’s appraised value.) The first-time-buyer programs go to 97%.
Cash-out is different. A conventional cash-out on a one-unit primary residence tops out at 80% LTV. On two- to four-unit primary residences and second homes, the cap is 75%. Pricing and available terms vary by lender, borrower profile, property type, and full underwriting review. That gap is the first thing to check before you run any math.
Lendmire’s cash-out refinance programs cover this conventional lane. Lendmire is a mortgage broker and arranges these loans through wholesale lenders. Every figure here is subject to lender guidelines and full file review, and nothing is a commitment to lend.
How Is a Debt-Payoff Cash-Out Underwritten?
The lender tests five things in order: equity, time owned, occupancy, debt payoffs and ratios, and reserves. A shortfall on any one can stop the file. Walk through them before you spend time on cost math.
1. Equity and leverage. An appraisal sets the home’s value, and the value sets the ceiling. Your new first mortgage, plus any liens that stay on the home, must fit under the 80% or 75% cap described above. Fannie Mae’s eligibility matrix lists these caps by unit count and occupancy. A second mortgage you keep counts toward the cap.
2. Seasoning. Seasoning is the waiting period a lender wants before you can refinance. On conventional cash-out, the first mortgage you are paying off must be at least 12 months old, measured note date to note date. At least one borrower must also have been on title for six months. Fannie Mae’s cash-out guidance carves out exceptions. They include delayed financing after a cash purchase, an inheritance and a legal award. The 12-month test does not apply to second liens being paid off.
3. Occupancy. On a primary-residence cash-out, every borrower on the loan must live in the home. A second home or a two- to four-unit property sits at the lower 75% cap, so occupancy sets leverage.
4. Payoffs and your debt-to-income ratio. Debt-to-income, or DTI, compares your monthly debt payments to your monthly income. Paying off a revolving account at or before closing can remove its payment from your DTI. Fannie Mae’s debt payoff rule says the account does not have to be closed. Installment loans paid down to a handful of remaining payments can drop out too. Open 30-day charge accounts need verified funds to cover the balance. A payoff made only to qualify gets a closer look, and your history of credit use is a factor.
This is where many borrowers get confused. The DTI relief can make a file approvable. It does not make the debt cheaper. Keep those two ideas apart.
5. Reserves and ratios. Reserves are the savings you hold after closing. Higher-DTI cash-out files can require extra months of reserves. On most files the automated finding governs, with a total ratio ceiling of 50%. The wholesale conventional programs start at a 620 decision score, though the score needed rises with leverage.
Lenders also apply pricing adjustments on cash-out. These are built into pricing, so they affect your cost. Think of them as “part of the rate or the fees,” not as a separate line you can skip.
How Do You Run the Comparison?
Follow six steps. The goal is one number for “keep what I have” and one for “refinance,” both measured over the same holding period.
Step 1: Gather inputs. Pull the payoff balance, rate and remaining months for your mortgage and each debt. Then gather the new loan’s term, closing costs and any premiums. The table shows the shape of the worksheet.
| Item | Balance | Rate | Months left |
|---|---|---|---|
| Current mortgage | Payoff | Note rate | Remaining |
| Card or personal loan | Payoff | Stated rate | Remaining |
| Auto loan | Payoff | Stated rate | Remaining |
Step 2: Weight the old stack. Multiply each balance by its rate, add the results, and divide by the total balance. That gives the blended rate of what you carry today. A large, low-rate mortgage drags the figure down, so a high card rate matters less than it feels.
Step 3: Put the new loan on the same principal. Compare the old stack to the new loan only on the money that gets retired. The new cash you take beyond the payoffs has its own cost. Keep it in a separate line.
Step 4: Fold in fees. Closing costs raise the true cost whether you pay them in cash or finance them. Financed costs enlarge the balance, so you pay interest on them. Treat them as an added cost spread over the years you will hold the loan.
Step 5: Choose a holding period. Use the years you expect to keep the home and the loan, not the full term. A refinance that wins over 20 years can lose over five if you sell, because you pay the upfront costs again with a short time to recover them.
Step 6: Compare totals. Total the interest and costs on each path across that holding period. The lower total is the cheaper path. If the gap is small, a different factor, such as budget relief, may drive the decision.
Why Isn’t a Lower Rate the Same as a Lower Cost?
A lower rate can still cost more, because the term and the balance change too. Three things pull in the opposite direction from the rate.
The term resets. Say your mortgage has 20 years left and the new loan runs 30. The part of the balance that was your old mortgage now has ten extra years to accrue interest. Short-term debts stretched over decades can cost more in total even at a lower rate. Your payment falls because the debt is spread thinner, not because the debt got cheaper.
The premium covers the whole loan. On FHA, the mortgage insurance premium applies to the entire new balance, not only the cash portion. The VA funding fee works the same way. On conventional loans, mortgage insurance is required above 80% LTV. It can be cancelled at 80% of original value with good payment history, and it ends automatically at 78%. A cash-out at or below the 80% cap usually avoids it.
The balance gets bigger. Rolling in fees and cash-out raises the amount you owe for the whole holding period. The CFPB warns that consolidation loans can end up costing more in fees and interest than paying the original debts directly. That page is about home equity loans, but the same logic carries over to a cash-out refinance.
One more idea helps: ask what would have to be true for the refinance to lose. How much higher can the new loan’s cost go, or how short can your holding period get, before the comparison flips? That is your margin of safety. If a small change flips the answer, the refinance is a thin win.
How Does a Cash-Out Compare With the Alternatives?
Cash-out reprices everything and secures everything. The other tools reprice less but often cost more per dollar. The best fit depends on how large and how costly your debts are against your current mortgage.
| Option | What gets repriced | Collateral risk |
|---|---|---|
| Keep mortgage, pay debts down | Nothing | None added |
| Second mortgage or home equity loan | Only the new money | Home secures it |
| Unsecured consolidation loan | Only the debts | None on the home |
| Cash-out refinance | Entire balance | Home secures all |
If your existing mortgage is a low-cost one, repricing all of it can be the most expensive part of a cash-out. A second lien can leave that loan alone. If your mortgage is already expensive, a cash-out can fix both problems at once. Run both through the six steps above and let the totals decide.
The decision also involves your behavior. Moving card debt into a mortgage frees up the cards. A balance that creeps back up leaves you with the mortgage and new card debt. Lendmire’s piece Should I Cash Out Refinance To Pay Off Debt? covers that side of the decision.
Where Does the General Rule Break?
Several cases bend the standard cash-out math. Each one changes the inputs, so check whether yours applies before you finalize a comparison.
- FHA. HUD cut the FHA cash-out cap to line it up with the conventional cap, so older figures online are out of date. The FHA Streamline is not a cash-out product. It is the lighter-documentation option for an existing FHA loan, with no cash back for debts.
- VA. The VA’s cash-out page says a VA cash-out can pay off debt or move a non-VA loan into a VA loan. The VA IRRRL is the streamline for an existing VA loan. It carries a 0.5% funding fee unless exempt, no VA appraisal and a net tangible benefit test. It cannot pay off debt.
- Free-and-clear homes. A new mortgage on a home with no loan counts as cash-out, so the 80% cap applies.
- PACE payoffs. Paying off a PACE energy-retrofit obligation is treated differently, and some programs place it in the limited cash-out category.
- Student loan payoff. Some conventional programs have a student-loan cash-out variant with its own rules.
- Buydowns. Temporary interest rate buydowns are ineligible on cash-out.
- Listed homes. A home listed for sale must be taken off the market by the disbursement date.
- High-leverage wholesale lane. One wholesale lane reaches 89.99% LTV with no mortgage insurance. It requires a 680 score, a 50% ratio, a thirty-year fixed rate, a primary residence and a conforming balance, plus its own six months of seasoning. It is not written in Texas.
- Texas. A cash-out on a Texas homestead is capped by the state constitution at 80% of the home’s value. Final terms depend on the lender’s guidelines, the property type, and the borrower’s complete credit picture.
What Should the Loan Estimate Show You?
The Loan Estimate is the three-page form that shows each loan’s estimated rate, payment and total closing costs. The CFPB’s home loan toolkit tells shoppers to compare Total Loan Costs, found in Section D of page 2, and the APR on page 3. It also says to review lender credits and points.
Request Loan Estimates for the same type of loan from more than one lender, because costs vary. Use APR as one measure only. It spreads costs over the loan term and is not the interest rate, so it can mislead when you plan to sell or refinance early.
Common Mistakes
- Comparing only the new payment to the old payment.
- Comparing the new rate to the mortgage rate and ignoring the card balances.
- Leaving fees and the financed balance out of the math.
- Judging the result over the full term instead of the real holding period.
- Running the card balances back up after they have been paid off.
- Using up equity you may need later for repairs or an emergency.
Key Terms Defined
Blended cost: The weighted cost of all the debts you would retire, measured against the all-in cost of the new loan over the same holding period.
Cash-out refinance: A new mortgage larger than the one you owe, used to pay off other debts or take cash, with tighter leverage than a rate-and-term loan.
Rate-and-term refinance: A refinance that replaces your first mortgage and covers closing costs, with only incidental cash back.
Seasoning: The waiting period a lender requires after you buy the home or take out the loan being paid off.
Debt-to-income ratio (DTI): Your monthly debt payments divided by your monthly gross income.
Break-even: The point in time when the savings from a new loan have repaid the cost of getting it.
What Does the Decision Look Like in Practice?
A typical decision looks like this. A homeowner holds a mortgage and several high-cost debts. The equity test passes at the 80% cap. The six-step comparison shows lower total cost over the five years they plan to stay. The new loan’s term is long, so they plan to pay extra toward principal.
Another homeowner holds a low-cost mortgage and one modest card balance. The comparison shows repricing the whole mortgage would cost more than the card ever did. They keep the first loan and pay the card down.
Tax treatment can depend on your situation; borrowers should speak with a qualified tax professional before relying on any deduction or credit.
Next Step
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.
Frequently Asked Questions
Is blended cost the same as blended rate?
No. A blended rate weights only the interest rates. Blended cost adds fees, premiums, term length and your holding period. It is the more complete test.
Can a higher mortgage rate still save money?
Sometimes. If the debts you retire carry high rates and large balances, the weighted cost of the old stack can exceed the new loan’s cost. It depends on the fees and on how long you keep the loan.
Do closing costs belong in the comparison?
Yes. Costs paid in cash lower your savings directly. Costs added to the balance accrue interest. Either way, spread them across the years you expect to hold the loan.
Can I pay off a credit card with a rate-and-term refinance?
No. Paying off cards or personal loans from the proceeds makes it a cash-out loan. A rate-and-term refinance only covers the first mortgage, closing costs and a purchase-money second lien, with incidental cash back.
Do I have to close my credit cards after the payoff?
Not for the DTI exclusion on conventional loans. The account does not need to be closed, though the lender looks at your credit history. Keeping the cards open is a risk if the balances climb again.
For your own numbers, request a scenario review with Lendmire.
About Lendmire
As a mortgage broker (NMLS# 2371349), Lendmire helps homeowners and home buyers in 16 states with FHA, VA, conventional and jumbo purchase and refinance loans arranged through wholesale lenders. Lendmire is never the lender; program terms are set by the lender and the agency guidelines. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.
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References
1. Fannie Mae Eligibility Matrix
2. Fannie Mae Selling Guide B2-1.3-03, Cash-Out Refinance Transactions (archived version)
3. Fannie Mae Selling Guide B3-6-07, Debts Paid Off At or Prior to Closing
4. CFPB: What do I need to know if I’m thinking about consolidating my credit card debt?
6. CFPB: Your Home Loan Toolkit
This article is part of Lendmire’s Refinance series — every loan program’s qualification details, guidelines, and scenarios live on the loan options page.
Related reading: How to Pay Off Card Debt Through Escrow in a Cash-Out Refinance · How Much Cash a Debt Consolidation Cash-Out Refinance Releases · How to Get a Cash-Out Refinance on a Paid-Off Home in Retirement
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
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Important disclosures. Lendmire (NMLS# 2371349) is a licensed mortgage brokerage. Lendmire is not a direct lender, depository institution, or financial advisor. All loan inquiries are subject to lender underwriting; this article does not constitute a commitment to lend. Rates, terms, and program guidelines are subject to change without notice and vary by borrower profile, property type, and state. Information in this article is general in nature and is not financial, legal, or tax advice. Equal Housing Opportunity. NMLS Consumer Access: nmlsconsumeraccess.org.