The Quick Read: A lender sizes a refinance by multiplying the home’s value by the program’s maximum loan-to-value percentage. That product is the ceiling on the new loan. Your payoff, financed costs, and any second lien you keep must all fit under it. A lower appraisal shrinks the ceiling in direct proportion, so value comes first and everything else follows.
The Sizing Formula in Plain Words
Maximum loan = program percentage × appraised value. That’s the whole engine.
Refinance savings and break-even estimate
The starting figures are an example value with a balance in proportion and a placeholder for costs. Replace them with yours, and enter the current rate from your statement.
Editable benchmark: 7.32% as of October 22, 2026 · Freddie Mac 30-year average via FRED®. A conventional market reference, not a refinance quote.
Illustrative starting assumptions: a $350,000 home value, a $245,000 current balance, a current rate you enter and a remaining term seeded at twenty-five years, closing costs seeded at $5,000 as an editable placeholder (not a fee quote) and rolled into the new loan, 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 new rate field carries the weekly Freddie Mac thirty-year conventional benchmark, a market reference and not a refinance quote; a refinance is priced by the lender at lock, and the current rate, the remaining term and the closing costs are figures you enter. The current payment is estimated from the balance, the current rate and the remaining term; the break-even divides the closing costs by the monthly saving and ignores the interest effect of a longer term. On the VA IRRRL the funding fee is added to the loan unless the veteran is exempt. Taxes and insurance are editable estimates. Licensed in sixteen states for consumer mortgages; Lendmire is a broker, never the lender.
Loan-to-value (LTV) is the new loan amount divided by the home's value. Combined LTV (CLTV) adds any second mortgage that stays in place. Lenders set the percentage ceiling by three things: the type of refinance, how you use the home, and how many units it has.
Here is the part people miss. The ceiling applies to the new loan. It does not apply to your equity. If a program allows 95% LTV, the new loan can be up to 95% of value, and you don't "get" 95% of anything. You owe it.
For a rate-and-term refinance (the agencies call it limited cash-out), the new loan pays off your existing first mortgage and the closing costs. It can also pay off a second lien that was used to buy the home. Only incidental cash comes back to you. Across the wholesale programs Lendmire places files with, the ceiling on a one-unit principal residence is 95% LTV. It reaches 97% where the existing loan is agency-owned and the first-time-buyer program allows it. Those figures are subject to lender guidelines and full file review.
How Is the Loan Sized, Step by Step?
The order matters. Skip a step and the number you expect won't be the number you get.
1. Valuation. The lender establishes the home's value. That might be a full appraisal or an automated value acceptance, covered below.
2. Classification. The lender decides whether the loan is rate-and-term or cash-out. Use of proceeds, any second lien payoff, and how long you've owned the home drive that call.
3. Ceiling. The lender applies the program percentage for your occupancy and unit count to the value.
4. Payoff and costs. Your existing first mortgage balance, accrued interest, closing costs, and escrows must fit under the ceiling.
5. Remaining liens. A second mortgage you keep counts toward the combined limit. It eats room before your new first loan gets any.
6. Underwriting. The lender checks credit, income, and your total debt ratio. Passing the value test doesn't finish the job.
7. Closing. The new loan pays off the old one. Excess proceeds beyond the program's allowance reduce the loan balance rather than landing in your pocket. Freddie Mac's Guide §4301.4 lays out what proceeds may be used for on its no cash-out product.
One practical note: Freddie Mac says all closing costs, financing costs, and prepaids and escrows can be rolled into the new loan on a no cash-out refinance, per its no cash-out product page. Rolling them in raises your balance, and a higher balance raises your LTV. Convenient, but not free.
A Worked Example, No Dollar Signs Required
Take a home that appraises at 100 units of value (call each unit 1% of value). Say you owe 70 units on your first mortgage. Closing costs and escrows come to 3 units.
Under a 95% ceiling, the maximum new loan is 95 units. Your needs total 73 units. You fit, with lots of room, and the room doesn't turn into cash on a rate-and-term loan.
Now the appraisal comes in 5% lower. Value falls to 95 units. The ceiling falls to 90.25 units. Same payoff, same costs, same 73 units needed. You still fit. But if you owed 90 units, you'd have started at 93 units needed against a 95-unit ceiling. After the 5% miss, the ceiling drops to 90.25 and you're short by nearly three units. That gap is cash you'd bring to closing, or a reason to change programs.
| Scenario | Value | Ceiling at 95% | Total needed | Result |
|---|---|---|---|---|
| Owe 70, costs 3 | 100 | 95 | 73 | Fits easily |
| Owe 90, costs 3 | 100 | 95 | 93 | Fits, barely |
| Owe 90, costs 3, value drops 5% | 95 | 90.25 | 93 | Short by about 2.75 |
A small miss on value scales the whole ceiling. That's why a borrower near the limit feels a low appraisal more than a borrower with plenty of equity.
Rate-and-Term vs. Cash-Out: Different Ceilings
Cash-out refinancing carries a lower ceiling because you're taking equity out. On a conventional cash-out, the ceiling is 80% LTV on a one-unit principal residence. It's 75% on two- to four-unit principal residences, second homes, and investment property. Leverage, reserves, and pricing vary by lender and program; the final terms follow the full file review.
The seasoning rules also differ. For a conventional cash-out, the first mortgage being paid off must be at least 12 months old, counted note date to note date. A borrower also needs to have been on title for 6 months. Exceptions exist for delayed financing, inheritance, and legal awards.
| Factor | Rate-and-term | Cash-out |
|---|---|---|
| One-unit primary residence ceiling | 95% (97% in some cases) | 80% |
| What the loan pays | Payoff, costs, purchase-money second | Payoff, costs, plus cash to you |
| Cash back | Incidental only | Whatever fits under the ceiling |
| Seasoning | Fewer hurdles | 12 months on the old loan, 6 on title |
For the cash-out version of this math, Lendmire's piece How a Lender Sizes Your Cash-Out Refinance From Appraised Value walks through the subtraction chain.
Occupancy changes the picture too. Fannie Mae's eligibility matrix shows the limited cash-out cap is lower on a second home than on a one-unit primary residence. The same house can support different loan sizes depending on how you use it.
When Does the Appraisal Not Set the Value?
Not every refinance uses an appraisal. Three situations break the pattern.
Value acceptance. Lenders submit your file to an automated underwriting system. Sometimes the system accepts the lender's or borrower's value estimate and waives the appraisal. Fannie Mae describes this on its value acceptance page. The system decides, not you. You can't request it.
FHA Streamline. If you already hold an FHA loan, the Streamline typically involves no appraisal and a limited credit review. You must show a net tangible benefit, meaning the refinance measurably helps you. The loan isn't sized off value the way a conventional refinance is. If you want a full FHA rate-and-term with an appraisal, the ceiling is 97.75%.
VA IRRRL. If you already hold a VA loan, the Interest Rate Reduction Refinance Loan needs no VA appraisal. It carries a 0.5% funding fee unless you're exempt, a net tangible benefit test, and seasoning of the later of 210 days and six payments. VA's IRRRL page states that no appraisal or credit underwriting package is required. Individual lenders may still add their own conditions.
Neither streamline is open to conventional borrowers.
What Else Can Hold the Loan Below the Value Ceiling?
The value ceiling is one limit. It isn't the only one. A loan can clear the LTV test and still stall.
- Credit. Wholesale conventional programs generally start at a 620 decision score, and a lender may set a higher floor.
- Debt ratio. The automated finding governs most files, with a total ratio ceiling of 50%. Manually underwritten loans use 36% or 45%, depending on reserves and score.
- Loan size. Above the conforming limit, jumbo lanes take over. Those start at a 660 decision score, reach 90% leverage, and run to $5,000,000, with a 50% ratio ceiling on the fixed lanes.
- Credit events. The agencies set waiting periods: four years from a chapter 7 discharge, seven from a foreclosure, four from a short sale or deed-in-lieu. Documented extenuating circumstances can shorten them.
- Second liens. A second mortgage you keep counts toward CLTV. The agencies also treat a second lien payoff as no cash-out only if that lien was used in full to buy the home.
In practice, the combined-lien issue trips people most. A borrower sees a comfortable first mortgage balance and forgets the HELOC. The lender doesn't forget it.
Mortgage Insurance and the 80% Line
Above 80% LTV, a conventional loan carries mortgage insurance. Published typical annual premiums run 0.58% to 1.86% of the balance. That's a range, not a quote, and your file decides where you land. Terms vary by lender guidelines, property type, leverage, credit profile, and full file review.
You can request cancellation at 80% of the original value, if you have a good payment history, no subordinate liens, and no decline in value. The servicer must end it automatically at 78%. That's the Homeowners Protection Act at work.
Why this matters for sizing: a refinance at 95% LTV puts you deep in insurance territory. Rolling closing costs into the loan nudges your LTV up. A refinance that lands just under 80% can avoid the insurance entirely. Sometimes bringing a little cash to closing is cheaper than carrying the premium for years. That's a break-even question, and it depends on your numbers. Exact terms depend on the lender's guidelines, property type, leverage, and a full review of the borrower's file.
One more wrinkle. Fannie Mae has a separate High LTV Refinance option for on-time payers who exceed the standard limited cash-out maximums. Check current availability, because programs like this get paused and restarted.
What If the Appraisal Comes In Low?
You have options. None is automatic.
1. Bring cash. Paying down the balance at closing shrinks the loan to fit the lower ceiling. Think of it as a cash-in refinance.
2. Shrink the ask. On a cash-out, drop the cash portion. On a rate-and-term, trim financed costs.
3. Ask for a reconsideration of value. Federal agencies issued interagency guidance on reconsiderations of value. It describes ways to submit information the appraiser didn't consider, such as better comparable sales. That's guidance, not a right to a higher number. Bring evidence, not frustration.
4. Switch programs. An existing FHA or VA loan may qualify for a streamline, where the appraisal doesn't size the loan.
5. Wait. Sometimes the sensible move is to hold off and refinance when value or balance changes.
You also have a right to see the appraisal. Under the ECOA Valuations Rule, the lender must give you a free copy of any appraisal developed for a first-lien mortgage application, and lenders must notify you of that right. Read it. Appraisers make factual errors, like wrong square footage or missed upgrades, and you can only catch them if you look.
Common Misreadings
"Available cash is value times the cap minus what I owe." Close, but incomplete. Payoff, closing costs, prepaids, lien payoffs, and underwriting approval all reduce it.
"My own estimate sets the value." Only when the automated system offers value acceptance. Otherwise, the appraised value controls.
"Limited cash-out means zero cash." A small capped amount can come back. It's not a cash-out loan.
"A streamline works on any mortgage." The FHA Streamline needs an existing FHA loan. The VA IRRRL needs an existing VA loan.
"No VA appraisal means no lender requirements." VA doesn't require one. Lenders may add conditions.
Key Terms Defined
Appraised value: An appraiser's estimate of what your home would sell for, based on recent nearby sales adjusted for differences.
LTV (loan-to-value): The new loan amount divided by the home's value, shown as a percentage.
CLTV (combined LTV): LTV counting your new first mortgage plus any second liens that stay in place.
Limited cash-out refinance: A refinance, often called rate-and-term, that pays off your current loan and costs, with only incidental cash back.
Net tangible benefit: A measurable improvement for you from the refinance, which streamline programs require.
Seasoning: The minimum time you must own the home or hold the existing loan before a refinance qualifies.
What to Gather Before You Ask a Lender to Size the Loan
- Your current first mortgage payoff balance, plus any second lien or HELOC balance.
- Whether the home is your primary residence, a second home, or has multiple units.
- Whether your existing loan is conventional, FHA, or VA.
- Your purchase date and the date of your existing loan.
- A list of upgrades and repairs since you bought, with dates, for the appraiser.
- Your goal: lower the monthly cost, shorten the term, drop mortgage insurance, or take cash.
Run the sizing both ways. Find the maximum loan from your estimated value, then find the minimum value you need for the loan you want. If those two numbers sit close together, a modest appraisal miss will matter.
Lendmire arranges these loans through wholesale lenders, and its refinance programs cover conventional, FHA, VA, and jumbo options. Every figure above is subject to lender guidelines and full file review, and nothing here is a commitment to lend.
If you hold an FHA loan, Lendmire's piece How an FHA Cash-Out Lender Sizes Your Loan Against Appraised Value covers that side of the sizing.
Frequently Asked Questions
Does a refinance always need a new appraisal?
No. An automated underwriting system can accept a value estimate and waive the appraisal on eligible conventional loans. The FHA Streamline and VA IRRRL generally skip it too. The system and the program decide, not your request.
Can I borrow 95% of my home's value in a refinance?
On a one-unit principal residence, a rate-and-term refinance can reach 95% LTV. That's the new loan as a share of value, and it must cover your payoff and costs. Mortgage insurance applies above 80%, and approval depends on credit, income, and full file review. Every figure here varies by lender and program — guidelines, property type, leverage, and credit profile all apply.
What happens to my loan amount if the appraisal is 5% low?
The ceiling drops by 5%, because it's a fixed percentage of value. Your payoff and costs don't change. If you were close to the limit, you'll need to bring cash, trim costs, or change the structure.
Does a second mortgage or HELOC count against my refinance?
Yes, if it stays in place. It's added to the new first loan in the combined LTV, which uses up room under the ceiling. Paying it off with the refinance is treated differently, and the rules depend on whether it funded the home purchase.
Why is cash-out capped lower than rate-and-term?
Taking equity out leaves the lender with less cushion if values fall. Conventional cash-out on a one-unit primary residence is 80% LTV, compared with 95% for rate-and-term. Seasoning rules also apply. Final terms depend on lender guidelines, property type, leverage, and the borrower's complete credit picture.
If you are weighing a refinance and want the break-even run on your own numbers, Lendmire can help you compare the programs on the same home.
For your own numbers, request a scenario review with Lendmire.
About Lendmire
Lendmire is a mortgage brokerage (NMLS# 2371349) licensed for consumer mortgage lending in 16 states, arranging FHA, VA, conventional and jumbo purchase and refinance loans through a wholesale lending network. Eligibility is determined by the lender on each file. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.
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References
2. Freddie Mac No Cash-Out Refinance Mortgages
3. Fannie Mae Eligibility Matrix
4. Fannie Mae Value Acceptance
5. VA IRRRL
7. Interagency Guidance on Reconsiderations of Value
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: Cash-Out Refinance vs Home Equity Loan for Home Improvements · How a Lender Sizes the Paydown on a Cash in Refinance · Can You Refinance a Small Mortgage Below the Lender Minimum?
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
Required disclosures. Lendmire (NMLS# 2371349) operates as a licensed mortgage broker, not a direct lender or depository. The discussion in this article is general in nature and should not be relied upon as financial, legal, or tax advice — every investment scenario is unique and should be reviewed by a qualified professional. Any loan inquiry is subject to lender underwriting, and this article is not a commitment to lend or a guarantee of approval. Mortgage rates, loan terms, and program guidelines vary by borrower, property, and state, and may change without notice. Equal Housing Opportunity. Verify licensure at NMLS Consumer Access.