The Quick Read: The paydown is the gap between what you need to borrow (your payoff plus any costs you finance) and the largest loan the home’s value and the program’s leverage limit allow. “Cash-in” describes how the money moves, not a separate loan. Any closing costs you pay in cash sit on top of the paydown. The lender’s rules decide how much cash does anything useful.
This guide walks through that sizing from start to finish. It covers how a lender builds the number, where the number moves, and how to decide whether the cash is worth bringing.
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.
Key Terms Defined
Loan-to-value (LTV) is the new loan amount divided by the home's appraised value, shown as a percentage.
Payoff is the exact amount needed to retire your current mortgage on the day the new loan funds. It includes interest that has built up since your last payment.
Paydown is the cash you bring to closing to shrink the new loan below what the payoff and financed costs would otherwise create.
Per-diem interest is the daily interest charge on your existing loan. It is why the payoff keeps growing until the day the loan funds.
Prepaids and escrows are up-front deposits for items like homeowners insurance, property taxes and interest on the new loan.
Limited cash-out refinance is Fannie Mae's name for a refinance that pays off the existing first mortgage and gives you back only a small, capped amount of cash. Freddie Mac calls its version a "no cash-out" refinance.
Is a Cash-In Refinance a Real Program?
No. Neither Fannie Mae nor Freddie Mac has a product with that name. A cash-in refinance is an ordinary rate-and-term refinance in which you happen to bring money to the table.
Fannie Mae's Selling Guide on limited cash-out refinances governs the loan. The new loan pays off your existing first mortgage. Cash back to you is capped at the greater of 1% of the new loan balance or $2,000, per Fannie Mae's SEL-2025-08 announcement. Older articles quote a "lesser of 2% or $2,000" cap. That is outdated.
Across the wholesale programs we place files with, the paydown is rarely the goal in itself. It is a tool. You bring cash to land under a specific line, and the rules decide which line matters.
The Formula in Plain Words
Three lines do most of the work:
- Maximum new loan equals the appraised value times the program's maximum LTV.
- Minimum paydown equals your payoff, plus any costs you are financing, minus that maximum loan.
- Total cash to close equals the minimum paydown, plus any closing costs, prepaids and escrows you pay in cash.
Solve it backward too. If you know how much cash you can bring, add it to the maximum loan. That sum is the most payoff-plus-financed-costs the deal can carry. If the value comes in lower than hoped, the same math tells you how much more cash you need.
Here is the useful part. Every point of value you lose raises the paydown by the leverage-cap share of that loss. At a 95% limit, a missed dollar of value costs you 95 cents in extra cash. A low appraisal hurts more than most people expect.
How Does the Lender Build the Number, Step by Step?
Lenders run the same sequence on almost every file. The order matters, because each step feeds the next.
1. Pick the loan category. The file is a limited cash-out (rate-and-term) refinance when it pays off your first mortgage and returns only the small capped amount. Paying off a second lien that was not used to buy the home pushes the file into cash-out, which carries a lower leverage ceiling. A paydown does not undo that.
2. Establish value. For a refinance, LTV uses the current appraised value or another acceptable method. Fannie Mae's loan-to-value rules say the ratio is the loan amount divided by that value. Your paydown is only as accurate as the value behind it.
3. Pick the target line. The usual targets are the 80% mortgage insurance line, the program's maximum LTV, or a pricing band. More on those below.
4. Account for rounding. The ratio is truncated to two decimals, then rounded up to a whole percent. A result of 94.01% is treated as 95%. So a loan one hair over a line counts as the next tier. Build in a cushion.
5. Build the loan amount. The new loan equals the payoff, plus financed closing costs, prepaids and escrows, plus any allowed cash back, minus your paydown.
6. Verify the payoff. The figure on your monthly statement is not the payoff. Interest accrues daily, so the real number is higher and moves until funding. A paydown sized off an old statement runs short.
7. Document the cash. Lenders verify funds to close, so expect to provide bank statements showing where the money sits.
8. Re-run everything on the final figures. If financed costs or the payoff shift, the LTV can slide across a line.
Which Target Line Are You Chasing?
Most paydowns aim at one of three lines. Pick the one that pays you back.
| Target | What it does | Where the paydown helps |
|---|---|---|
| 80% LTV | Removes conventional mortgage insurance | Often the biggest monthly payoff |
| Program maximum | Makes the loan eligible at all | Required to close |
| Pricing band | Can change the loan's cost | Only if you cross a band |
The mortgage insurance line. On a conventional first mortgage, insurance is required above 80% LTV, per Fannie Mae's insurance rules. Published typical premiums run 0.58% to 1.86% of the balance a year. That is a range, not a quote. Getting to 80% removes the premium on the new loan. Final terms depend on the lender's guidelines, the property type, and the borrower's complete credit picture.
The program maximum. Across the wholesale programs we place, a rate-and-term refinance on a one-unit principal residence reaches 95% LTV. It reaches 97% where the existing loan is agency-owned and the first-time-buyer program allows it. If your math lands above the cap, the paydown is not optional. It is the price of admission. Each figure is subject to lender guidelines and a complete review of property type, leverage, and credit.
Pricing bands. Loan-level price adjustments from Fannie Mae's pricing matrix depend on credit score, loan purpose, occupancy and unit count, and they are tied to LTV bands. Crossing into a lower band can change what the loan costs. Staying inside a band changes nothing. An extra dollar of paydown that does not cross a line buys you only a smaller balance.
What Does a Worked Example Look Like?
Use percentages of value instead of dollars. Say your home appraises at 100 units of value, and you owe 96 units, with 2 units of closing costs you want to finance. The target is the 95% program maximum.
| Scenario | Value | Max loan | Need to borrow | Minimum paydown |
|---|---|---|---|---|
| Base | 100 | 95 | 98 | 3 |
| Low appraisal (value 97) | 97 | 92.15 | 98 | 5.85 |
| Payoff grows by 0.5 | 100 | 95 | 98.5 | 3.5 |
| Pay costs in cash | 100 | 95 | 96 | 1 (plus 2 for costs) |
The low appraisal case is the painful one. Value fell by 3 units, and the paydown rose by nearly 3. Paying the costs in cash, meanwhile, moves money from one pocket to another. The paydown drops from 3 to 1 because the costs no longer sit in the new loan. You still fund the 2 units of costs, so total cash stays the same. Freddie Mac's no cash-out refinance page confirms closing costs, financing costs and prepaids can be rolled into the new loan.
Hitting 80% instead? Use the same formula with 80 as the multiplier. The paydown gets much larger, which is why many borrowers weigh it against the insurance they would pay otherwise.
Which Limit Binds First?
LTV is not the only gate. A paydown fixes leverage. It does not fix everything else.
- Debt ratios. Your total monthly debts against your income still matter. A smaller loan can help the ratio. It will not rescue a file with too much other debt.
- Credit score. The wholesale conventional programs start at a 620 decision score. Paying down does not move that.
- Reserves. Spending savings on the paydown shrinks the cushion you have left. Fannie Mae's eligibility matrix ties reserve requirements to higher debt-to-income files. You can pay down your way into a reserve problem.
- Remaining seconds. If a second lien stays in place, the combined LTV counts it. A home equity line counts at its full limit whether you have drawn it or not. Paying down the first mortgage may not solve a combined-leverage problem.
- Agency ownership. For limited cash-out loans above 95% LTV, Fannie Mae must already own the existing loan. No amount of cash changes that. Leverage, reserves, and pricing vary by lender and program; the final terms follow the full file review.
In practice the binding limit is usually the leverage cap or the reserves. Check both before you move savings.
Where the Rules Break: Edge Cases
Government streamlines. On an FHA Streamline, HUD bars rolling closing costs into the new loan and caps cash back at $500. There is no LTV band to chase, so any "paydown" is just cash brought to closing. The VA IRRRL works differently again. VA says no appraisal or credit underwriting package is required, so there is no value to size against. Neither program sizes to LTV.
Renovation loans. Fannie Mae's HomeStyle Renovation allows no cash back at closing in any amount.
Occupancy. Leverage limits drop for second homes and multi-unit properties. Occupancy decides the ceiling, so the same paydown math lands in a different place.
Title. At least one borrower on the new loan generally must already be on title when you apply. An LLC does not fit this lane.
Manufactured housing and disasters. These have their own rules and relief provisions. Do not assume the standard numbers carry over.
Where Does the Cash Come From?
Lenders want to see the money's history. Savings that sit in your account are the cleanest source. A large recent deposit draws questions, and you should expect to explain it with paperwork. Selling an asset, a bonus, or a gift can all work in some programs, but each comes with its own documentation. Guidelines vary by lender, so confirm yours before you move money.
One rule of thumb from our desk: do not shuffle funds between accounts casually in the middle of a file. Every transfer is a line item someone has to explain.
Is the Paydown Worth It?
Sometimes the better move is not a refinance at all. This one is a genuine toss-up on many files, so run the options side by side.
| Option | What it does | Trade-off |
|---|---|---|
| Cash-in refinance | Shrinks the new loan, can drop insurance | Cash tied up, new closing costs |
| Lump-sum payment, no refinance | Lowers balance on current loan | Keeps current terms and insurance clock |
| Wait | Lets value and balance improve | Pays the current cost meanwhile |
| Insurance cancellation | Ends premiums without refinancing | Needs equity and clean payment history |
The Homeowners Protection Act lets you request cancellation at 80% of the original value, and requires automatic termination at 78%. The CFPB's exam procedures measure this against original value, not current value. A refinance resets that clock and uses a new value. If your loan is close to 80% already, waiting may beat paying down.
Ask three questions. How much monthly cost does the paydown remove? How long until the savings repay the cash? And what else could that cash do, including keeping an emergency cushion? If a paydown drains your reserves, the savings can cost you more than they return.
Frequently Asked Questions
Can a lender require me to bring a paydown?
Yes. If the value comes in low or the payoff plus costs exceeds the maximum loan, the file only works with cash from you. The requirement comes from the leverage limit, not from a lender preference. Your other choices are a smaller refinance, a different program, or waiting.
Does a low appraisal change my paydown?
Yes, though by less than the value lost. The maximum loan shrinks by the leverage share of the shortfall, so the required cash grows by about that same amount. Some borrowers ask for a reconsideration of value with better comparable sales before agreeing to pay more.
Do closing costs add to the paydown?
They add to the cash you need, not necessarily the paydown. Conventional programs let you roll costs into the loan, which raises the balance and can raise the paydown needed. FHA Streamline does not allow financed closing costs, so those come from your pocket.
Why is my payoff higher than my statement?
Interest accrues daily on your existing loan. Your statement shows the balance as of the last payment, while the payoff covers every day through funding. Ask for an updated payoff figure and size the paydown off that.
Does a bigger paydown always improve my loan terms?
No. Pricing moves in bands, so extra cash helps only when it crosses a band or the 80% insurance line. Beyond that, you get a smaller balance and a smaller payment, but not necessarily better terms.
If you are weighing a refinance and want the break-even run on your own numbers, Lendmire can help you compare the refinance programs on the same home. Lendmire is a broker that arranges these loans through wholesale lenders, and every program is subject to lender guidelines and full file review. Nothing here is a commitment to lend.
Lendmire's related piece How a Lender Sizes Your Cash-Out Refinance Amount covers the opposite case, where the borrower takes money out instead of bringing it in.
For your own numbers, request a scenario review with Lendmire.
About Lendmire
Lendmire — NMLS# 2371349 — is a mortgage broker that arranges FHA, VA, conventional and jumbo home purchase and refinance financing in 16 states through wholesale lenders. Every option is subject to the lender's guidelines and full underwriting. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.
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References
1. Fannie Mae Selling Guide B2-1.3-02, Limited Cash-Out Refinance
3. Fannie Mae Selling Guide B2-1.2-01, LTV Ratios
4. Fannie Mae's insurance rules
5. Fannie Mae's pricing matrix
6. Freddie Mac No Cash-out Refinance
7. Fannie Mae Eligibility Matrix (DU v12.1)
8. HUD FHA Streamline Refinance
9. VA: IRRRL
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 a Lender Sizes a Cash-Out Refinance in Retirement · How a Lender Caps the Amount You Can Take in a Cash-Out Refinance · How to Get the Maximum Cash From a Cash-Out Refinance
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.