The Quick Read: Start with what the money is for, add a cushion for closing costs, then test that number against two limits. The first limit is the equity ceiling. The second is a monthly payment you can carry on the larger loan. The cash you receive is a result of that math, not a target to hit.
What Does “Sizing” a Cash-Out Refinance Mean?
Sizing means choosing the loan amount from the need, not from the maximum. Most borrowers do it backward. They ask how much they can pull out, then look for ways to spend it.
A cash-out refinance replaces your current mortgage with a larger one and hands you the difference. Fannie Mae’s Selling Guide allows the proceeds to be used for any purpose. The rules police the loan, not your spending: leverage, seasoning, occupancy, credit and income. That leaves the sizing decision to you.
Across the wholesale programs Lendmire works with, the files that go smoothly are sized from the use first. The files that stall are usually built from the ceiling down. Lendmire is a mortgage broker licensed for consumer lending in 16 states, and it arranges these loans through wholesale lenders. Details of cash-out refinance programs are subject to lender guidelines and full file review. Nothing here is a commitment to lend.
Key Terms Defined
Loan-to-value (LTV): the new loan balance divided by the home’s appraised value, shown as a percentage.
Equity ceiling: the largest total loan the program allows, set by LTV times appraised value.
Gross cash-out: the new loan minus what it pays off, before costs come out.
Net cash: what you actually receive after payoffs and closing costs.
Seasoning: the waiting period before a loan or ownership counts for a cash-out refinance.
Break-even: the point where monthly savings, if any, have repaid the closing costs.
Step One: Find the Ceiling
The ceiling is appraised value times the program’s maximum LTV. On conventional loans, that is 80% for a one-unit principal residence. It drops to 75% for two- to four-unit principal residences, second homes and investment property.
The Fannie Mae Eligibility Matrix publishes the same one-unit and two-to-four-unit caps. Two points trip people up.
- Appraised value sets the ceiling. Not an online estimate. Not your tax assessment. Not what you paid.
- The cap covers the whole loan. An 80% ceiling does not mean 80% of your home’s value arrives as cash. Your payoff, financed costs and any liens paid off all sit under that same cap.
Run it with round, made-up numbers. Say a home appraises at 100 units of value, and the ceiling is 80%. Your current mortgage is 50. Costs are 3. The most cash you could take is 80 minus 50 minus 3, so 27 units. That is the maximum, not the plan.
Some wholesale lanes reach higher on a primary residence. One lane goes to 89.99% LTV with no mortgage insurance. It requires a 680 score, a 50% ratio ceiling, a thirty-year fixed rate and a conforming balance, plus its own six months of seasoning. Texas homestead cash-outs are capped at the agency figure, and that lane is not written there. Terms vary by lender guidelines, property type, leverage, credit profile, and full file review.
Step Two: Walk From Loan Amount to Cash in Hand
The new loan is a sum of parts: your existing first mortgage payoff, any liens you pay off, financed closing costs and prepaid items, and the cash to you. The total must fit under the ceiling.
Fannie Mae’s guide lets you finance closing costs, points and prepaid items into the new loan. That is convenient. It also means every financed cost either shrinks your cash or raises your balance.
To net a target, work in reverse. Take your need and add estimated costs. That sum is the cash portion you must request. Add your payoff, and you have the loan amount to test against the ceiling.
Costs vary by borrower and loan. The CFPB’s cash-out refinance research lists origination fees, appraisal fees, title insurance and other taxes and fees. Your Loan Estimate shows the real figures for your file. Ask for it before you settle on a number.
Step Three: Size From the Use
Different uses call for different logic. Here is the short version.
| Use | How to set the number | Cushion | Main risk |
|---|---|---|---|
| Home renovation | Written bids, not guesses | Add for overruns | Scope creep |
| Debt payoff | Exact payoff balances | Small | Running balances back up |
| Large one-time expense | The documented cost | None | Borrowing more than needed |
| Open-ended goal | Set a hard cap first | Avoid | Cash with no job |
Renovation. Start with signed bids. Add a cushion because projects run over. Keep the cushion modest, since you will pay interest on money you never spend. Also remember the appraisal reflects the home as it stands today, not as it will look after the work.
Debt payoff. Use exact payoff figures from each lender. Short-term debt like credit cards and auto loans would move onto a long loan secured by your house. The Federal Reserve’s refinancing guide notes that many financial advisers caution against this. The monthly savings can look good. The total cost over a longer term is another story. And the cards you just cleared are open again.
One-time expense. Size it to the documented cost, plus costs. Nothing extra.
Open-ended. “Some cash for later” is the weakest use. Set a cap you could defend, and stop there. (Cash that sits in a checking account has a way of finding its own purpose.)
Step Four: Test the New Payment
A loan that fits under the ceiling can still fail the payment test. The payment is principal and interest on the larger balance over the new term. Taxes, insurance, any mortgage insurance and HOA dues go on top. The lender qualifies all of it against your income and other debts.
Several things move the payment, and only one is the rate.
- Balance. A larger loan means a larger payment. The CFPB’s home equity guide says the monthly payment may increase because you replace your loan with a larger one.
- Term. A fresh thirty-year term can lower the payment while stretching the payoff. Late in an old loan, refinancing restarts amortization, so most of each early payment goes to interest again.
- Rate. The new rate applies to your whole balance. A cash-out can replace a lower-rate mortgage with a higher-rate one, as the CFPB notes.
Mortgage insurance matters when the loan is above 80% LTV. On the conventional cash-out lanes, 80% is the standard cap, so it rarely applies. If you do carry it, borrowers may request cancellation at 80% of original value. The servicer must end it automatically at 78%, under the Homeowners Protection Act. Exact terms depend on the lender’s guidelines, property type, leverage, and a full review of the borrower’s file.
Sizing From the Payment Backward
Many borrowers do better working this direction. Decide the total housing payment you would be comfortable carrying. Then ask your loan officer what balance that supports. Compare it with your need-based number.
- If the need-based number is lower, take the need-based number.
- If the payment-based number is lower, you have a gap. Your need exceeds what you can comfortably carry.
What Lenders Review
Credit, income, equity and the property all count. On conventional programs, the wholesale lanes start at a 620 decision score. The automated finding governs most files, with a total ratio ceiling of 50%. Manually underwritten loans use 36% or 45%, tied to reserve and score factors.
Reserves can matter on cash-out files with higher debt ratios. The Fannie Mae matrix states that minimum reserves apply to automated casefiles with a DTI above 45% on cash-out refinances. Reserves are money you have left after closing. Have your statements ready.
Where the General Rule Breaks
The 80% rule has real exceptions. These are the ones that come up most.
- Seasoning. The first mortgage you are paying off must be at least 12 months old, note date to note date. At least one borrower must have been on title for six months. A cash buyer may have a delayed financing exception, along with inheritance and legal-award exceptions.
- FHA and VA streamlines. An FHA Streamline and a VA IRRRL are not equity tools. HUD’s Streamline page limits cash back to $500 and requires an existing FHA loan that is current. To pull meaningful equity from an FHA loan, you need the full FHA cash-out with a full appraisal. VA cash-out is a separate, fully underwritten product.
- Property type. Two- to four-unit homes drop to 75%. Manufactured housing sits lower than both.
- Limited cash-out. A rate-and-term refinance allows only incidental cash back. It can go to 95% LTV on a one-unit principal residence. That is a different product with different sizing.
- Special payoffs. Delinquent taxes more than 60 days past due can be rolled into the loan. A PACE obligation must be paid in full when cash-out proceeds are used for it.
- State rules. Some states add extra home-equity rules. Ask your loan officer.
Size Down, Size Up, or Skip It?
Use this quick test before you apply.
1. Does the need fit under the ceiling after costs? If yes, move on. If not, phase the project, trim the scope or use a second source.
2. Does the payment fit your budget with room to spare? If it is tight, resize downward.
3. Does the new term suit the use? A long loan for a short-lived need costs more over time.
4. Is there a better tool? A home equity line or a new second mortgage may leave your existing first loan alone.
The CFPB also warns that paying non-mortgage debts with mortgage debt can increase foreclosure risk. Your home secures the loan. Treat the borrowed amount as a commitment, not a windfall.
Tax treatment can depend on your situation; borrowers should speak with a qualified tax professional before relying on any deduction or credit.
Frequently Asked Questions
Can I take 80% of my home’s value as cash?
No. The 80% limit applies to the entire new loan. Your payoff, financed costs and any liens paid off come out of that room first. Cash to you is what remains.
Should I borrow more than my quote or estimate?
A modest cushion makes sense for uses with real uncertainty, like renovation. Beyond that, extra borrowing costs interest on money you may not need. Set the cushion before you apply, not after.
Does a cash-out refinance always raise my payment?
Not always, but often. A larger balance pushes the payment up. A longer term or a different rate can offset that or add to it. Test the total housing payment, not only the loan amount.
Can an FHA Streamline or VA IRRRL give me cash?
No. Both exist to improve an existing government loan. The FHA Streamline caps cash back at $500. Equity needs the full FHA cash-out or a VA cash-out, each with full underwriting.
Can I refinance right after buying my home?
Usually not for cash-out. Seasoning rules require the existing first mortgage to be at least 12 months old and a borrower on title for six months. Named exceptions, like delayed financing for cash buyers, may apply.
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. Home equity is finite, and the borrowers who use it well are usually the ones who knew the number before they asked for it.
For your own numbers, request a scenario review with Lendmire.
For current guidelines and terms, see Lendmire’s refinance programs page.
About Lendmire
Lendmire, NMLS# 2371349, is a mortgage brokerage with consumer lending licenses in 16 states. FHA, VA, conventional and jumbo purchase and refinance loans are arranged through wholesale lending partners, and each application is reviewed individually by the lender. 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
3. CFPB: Cash-Out Refinances and Paydown Behavior
4. Federal Reserve’s refinancing guide
5. CFPB Older Americans Housing Guide (home equity)
6. Fannie Mae Selling Guide-incorporated Matrix (DTI reserves)
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: Should a Homeowner With a Low First Mortgage Skip the Cash-Out Refinance? · Can a Builder Use Mixed Deposits to Cash Out a Paid-Off Home? · How to Cash-Out Refinance a Luxury Home After a Company Sale
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
- North Carolina Insurance Producer · License# 19053198 · Property, Casualty, Life, Health · Verify on NAIC SBS
- Lendmire LLC · Firm NMLS# 2371349 · Verify firm licensure
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.