The Quick Read: The cash you need comes in three layers: a down payment, closing costs and prepaid items, and reserves you keep in the bank after closing. Together they usually run higher than on a primary home, because lenders ask for more equity and a bigger cushion on a vacation property. Only the down payment is a clean percentage of the price. The exact figures depend on the lender’s program and your full file.
Key Takeaways
- Count three buckets of cash, not one. The down payment is only the first.
- Reserves stay in your accounts after closing, so they are cash you cannot spend on the purchase.
- Occupancy decides the leverage. A second home sits at lane-specific leverage, which can be lower than the top figure on a primary-home purchase.
- Your current mortgage counts against you. Lenders add both housing payments when they check your ratios.
- A low appraisal raises the cash you need at the table.
Key Terms Defined
Jumbo loan: a mortgage above the conforming limit in the county where the home sits. Fannie Mae and Freddie Mac do not buy these loans, so each lender sets its own rules.
LTV (loan-to-value): the loan amount divided by the home’s value. A loan at 80% LTV means you put 20% down. Final terms depend on the lender’s guidelines, the property type, and the borrower’s complete credit picture.
CLTV (combined loan-to-value): the same ratio, but it adds any second loan on the property to the main mortgage.
Reserves: verified savings and other eligible assets left over after closing. They are separate from your down payment and closing costs.
DTI (debt-to-income ratio): your monthly debts, including the new housing payment, divided by your monthly income. Lenders call the maximum the “ratio ceiling.”
Occupancy: how you declare you will use the home. Primary residence, second home, and investment property are three different categories with different rules.
Prepaids: items paid up front at closing, such as the first stretch of homeowners insurance and some tax and escrow deposits.
Jumbo payment estimate
The starting figures are an example price in the jumbo range with ten percent down on a thirty-year fixed. Replace them with yours.
Editable benchmark: 7.40% as of October 15, 2026 · Freddie Mac 30-year average via FRED®. A conventional market reference, not a jumbo loan quote.
Illustrative starting assumptions: a $1,000,000 price in the jumbo range, ten percent down on the top-leverage lane, a thirty-year fixed structure at the current Freddie Mac conforming 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 conforming benchmark, a market reference and not a jumbo loan quote; jumbo rates are set by the lender and the lane at lock and differ from the conforming benchmark. An adjustable-rate scenario is shown at the benchmark for the whole term; the rate after the initial period is unknown. Reserve months and appraisal counts follow the lane sheet for the amount band; the automated finding may require more. Taxes, insurance and dues are editable estimates; closing costs are not included. On most lanes the conforming limit for the county decides whether a loan is jumbo at all; two lanes start at a stated dollar floor instead. Licensed in sixteen states for consumer mortgages.
What Counts as “Cash” on a Jumbo Second Home?
Cash means three separate pools of money: the down payment, the closing costs and prepaids, and the reserves left in your accounts afterward. Buyers often plan for the first and get surprised by the other two. Add all three before you start house-hunting.
| Bucket | What it is | When you feel it |
|---|---|---|
| Down payment | Your equity, set by the LTV cap | At closing |
| Closing costs and prepaids | Lender, appraisal, title, escrow set-up | At closing |
| Reserves | Verified assets left after closing | Stays in your accounts |
Here is the practical split. The first two buckets leave your accounts. The third stays put, but the lender still counts it against you, because it must remain there to qualify.
Lendmire arranges these loans as a mortgage broker, and the jumbo loan programs it places files with run on this same three-bucket logic. Across most of those wholesale programs, a jumbo loan starts one dollar above the county’s conforming limit, while two lanes start at a stated dollar floor instead. The largest lanes go up to $5,000,000, and reserves and appraisal requirements scale with the amount. Every figure here is subject to lender guidelines and full file review.
No national agency publishes a “jumbo second-home cash requirement.” Each lender or investor writes its own. That is why two buyers with the same price can face different totals.
How Is the Down Payment Set on a Second Home?
The lender sets a maximum LTV for your occupancy type and loan size, and your down payment is whatever closes the gap. On the jumbo lanes Lendmire works with, leverage tops out at 90%. Several lanes reach 89.99% CLTV, and the rest stop at 80%.
Those numbers describe the program envelope, not your second home. Second-home leverage is set lane by lane, so the top figure does not carry over automatically. Expect a second home to sit at or below what a primary home gets on the same lane.
Conforming loans have their own published benchmark. Fannie Mae’s eligibility matrix lists maximum LTVs by occupancy and transaction type for second-home purchases and cash-out refinances. That matrix is the conforming rulebook. Jumbo lenders write their own, and they usually ask for more equity.
Two details change your down payment in practice:
- The lower of price or appraised value. The LTV applies to whichever is lower. If the appraisal lands under your contract price, you cover the difference.
- The loan amount, not the price, decides jumbo status. A larger down payment can pull a loan under the county limit. That changes which rulebook applies.
Credit also matters. The headline jumbo lane works from a 660 decision score. Higher leverage, bigger loans, and a second-home declaration generally narrow the lanes you can use. Your score and the amount you borrow together decide which lane fits.
Reserves: Cash You Can’t Spend at Closing
Reserves are measured in months of the full housing payment, and they rise with the loan amount. On a second home, the lender wants proof you can carry the new home and keep paying on the one you already own. That is why this bucket trips up so many buyers.
A bigger loan means more months. The payment counted is the full one: principal, interest, taxes, insurance, and any association dues. The program details are lane-specific, so ask for the month count on your lane before you commit to a contract.
Picture a buyer with plenty saved for the down payment and closing. After wiring both, the checking account looks thin. The lender counts what is left, not what existed last week. A buyer in that spot can pass the down payment test and still come up short on reserves.
Other financed homes can add to the ask. Fannie Mae’s minimum reserve rules add reserves, as a percentage of unpaid balances, for other financed properties you own. They exclude the subject property and your principal residence. The same page says the same assets can cover reserves for several applications processed at the same time. The reserves are not stacked. Jumbo lenders write their own version of this, typically more investor-specific and often higher.
What counts as reserves is narrower than most buyers expect:
- Checking, savings, and brokerage accounts count, subject to documentation.
- Vested retirement funds count at some lenders, often at a reduced value.
- Borrowed money generally does not count. Reserves are meant to be your own assets.
Worked Example: Adding Up the Cash Without a Calculator
Take a hypothetical purchase at 80% LTV. The structure is easy to follow with percentages and no dollar amounts, so you can drop in your own numbers. Each figure is subject to lender guidelines and a complete review of property type, leverage, and credit.
| Step | What you add | How it is measured |
|---|---|---|
| 1 | Down payment | 20% of the lower of price or appraisal |
| 2 | Appraisal gap, if any | Price minus appraised value |
| 3 | Closing costs and prepaids | Your Loan Estimate |
| 4 | Reserves on the new home | Months of the full payment |
| 5 | Reserves tied to other financed homes | Lender-specific |
| 6 | Total cash you need on hand | Steps 1 through 5 |
Steps 1 through 3 are due at the table. Steps 4 and 5 stay in your accounts. Your total readiness number is all five.
Two things move it. If you raise the down payment, step 1 grows but your loan shrinks, which can lower the reserve months and the ratio pressure. If the appraisal comes in low, step 2 appears out of nowhere.
Closing costs vary by transaction, and no national average applies to a jumbo second home. Your Loan Estimate lists them line by line once you apply. Treat any estimate before that as a placeholder.
Where Can the Money Legitimately Come From?
The funds must be yours, documented, and sourced. Lenders trace the down payment and reserves back through your statements. A large deposit that appears without explanation needs a paper trail.
Common sources include:
- Savings and investment accounts. The cleanest path, because the statements already tell the story.
- Sale proceeds from another property. Documented with the closing statement.
- Gift funds. Whether a jumbo lane accepts them, and how much, is lane-specific. Ask before relying on one.
- Retirement accounts. Some lenders count vested balances toward reserves without a withdrawal, often at a reduced value.
- Home equity on your current residence. Possible, with a catch.
That last option deserves a closer look. The CFPB describes a piggyback second mortgage as a home equity loan or HELOC made at the same time as the main mortgage. Buyers use it to cover a thin down payment. Borrowed funds add a payment to your ratios. Some jumbo lanes restrict borrowed down payments, and that varies by investor. Check before you open the credit line, not after.
How Credit, Ratios, and Your Current Mortgage Move the Number
Your current mortgage payment counts in full. On a second home, the lender adds the new housing payment to the one you already carry, plus your other debts, and divides by your income. A second home can strain your ratios even when you have the cash.
The ratio ceilings on the Lendmire-arranged lanes depend on the loan structure:
- 50% on the fixed-rate lanes.
- 45% on the adjustable-rate lanes.
- 43% on the interest-only lanes.
Those are ceilings, not targets. A file that sits near the ceiling has less room for anything else to go wrong. A stronger credit profile and a larger asset cushion can improve the file, subject to lender guidelines.
Loan size matters too. Above a lane’s threshold amount, two appraisals are required. Reserves climb as the amount climbs. The very largest loans are reviewed case by case, so the numbers for a multi-million-dollar purchase can differ from the general pattern.
One more point about income. Many lenders do not count projected rent from a second home toward qualifying. Qualify on what you earn, not on what the house might earn.
Where the General Rule Breaks
The three-bucket model holds for most files. These are the cases where the number shifts.
Occupancy. Fannie Mae’s occupancy rules define a second home as a one-unit dwelling you occupy for part of the year, suitable for year-round use, with exclusive control. Jumbo lanes follow their own versions. A home bought mainly to rent is generally treated as an investment property, which carries different equity and reserve rules. Declaring the wrong occupancy is a misrepresentation risk, so declare it honestly.
Multi-unit buildings. Second-home treatment is generally limited to one-unit homes. A duplex or fourplex moves into a different category.
Condominiums. Two of the lanes allow non-warrantable condos. That helps buyers in resort-style buildings whose association finances fall outside standard guidelines. Condo and resort-area purchases also draw more attention at appraisal.
Cash-out refinances. If you already own the second home and want to pull equity out, leverage is lower than on a purchase, and the largest lanes add a cash cap. Lendmire’s piece Can a Second Home Get a Jumbo Cash-Out, and How Much Equity? walks through that case.
Conforming versus jumbo on the same house. The conforming limit is set by the FHFA and applies to the loan amount, not the price. In high-cost areas it rises where 115% of the local median home value exceeds the national baseline, with a ceiling of 150% of that baseline. The county-by-county list is on FHFA’s site. A larger down payment can pull your loan under the county limit. Then conforming second-home rules apply, and those loans carry their own pricing adjustments.
Programs that skip second homes. FHA and VA loans are built for primary residences. If you want a second home financed on those programs, confirm eligibility with the agency first.
Your Pre-Application Readiness Checklist
Run this before you make an offer. Each line is a number you can write down.
1. Price and target LTV. Your down payment is the remaining percentage.
2. Appraisal cushion. Decide where you could cover a gap if the value comes in low.
3. Closing costs and prepaids. Treat them as a separate pool until the Loan Estimate arrives.
4. Reserve months. Ask your lender for the count on your lane, and apply it to the full payment.
5. Other financed homes. List balances on any other mortgaged properties.
6. Ratios. Add the new payment to the current one and check the result against your lane’s ceiling.
7. Source and paper trail. Confirm that every dollar of down payment and reserves is documented.
Look at the total as three numbers: spend at closing, hold in reserve, and leave untouched as breathing room. A buyer who covers the first two but not the third is the one whose file stalls.
This one’s a judgment call, but a slightly larger down payment is often the stronger play. It lowers the loan, which can ease reserve months and ratios together. Buyers who need to keep cash for repairs and furnishing could argue the other way.
The next step is to compare lanes against your actual file. If you are buying a home and want to see whether a jumbo loan fits your file, Lendmire can help you compare the options and what each one asks of the file. Nothing here is a commitment to lend, and figures are subject to lender guidelines and full file review. Buyers who also want to explore cash-out math on a traditional employment income can read Lendmire’s piece How Much a Jumbo Cash-Out Refinance Gives a W-2 Earner for a Second Home.
Frequently Asked Questions
Do reserves have to cover the home I already own?
Often, yes, in some form. Lenders look at your whole financed-property picture, and conforming rules add reserves as a percentage of unpaid balances on other financed homes. Jumbo lenders write their own version, so ask which properties are counted and how.
Can I use a HELOC on my primary home for the down payment?
It depends on the lane. A HELOC is borrowed money, so it adds a payment to your ratios, and some jumbo lenders restrict borrowed down payments. Ask before you draw on the line.
Does a bigger down payment ever change the loan type?
Yes. Jumbo status depends on the loan amount, not the price. A larger down payment can bring the loan under the county limit, which puts the file under conforming rules instead.
Can I count rent from the second home to qualify?
Many lenders do not count it for a true second home. If you buy mainly to rent the home out, lenders generally treat it as an investment property, with different equity and reserve rules.
Why can I have enough for the down payment and still fall short?
Because closing costs, prepaids, and reserves sit on top of the down payment. Reserves are cash that must remain in your accounts after closing. Add all three buckets before you decide the savings are enough.
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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Informational only. Not a Loan Estimate, approval, or commitment to lend. Program availability and eligibility are subject to lender guidelines, credit approval, property review, and underwriting.
References
1. Fannie Mae Eligibility Matrix
2. Fannie Mae Selling Guide: Minimum Reserve Requirements
3. CFPB: What Is a Piggyback Second Mortgage?
4. Fannie Mae Selling Guide: Occupancy Types
5. FHFA: Conforming Loan Limit Values
This article is part of Lendmire’s jumbo loan program — full qualification details, guidelines, and scenarios live on the program page.
Related reading: How Much a Second Lien Costs vs. a Jumbo Cash-Out at the Same Balance · How to Get a Jumbo Cash-Out When a Home Needs Two Appraisals · How to Use Delayed Financing on a Second Home for Jumbo Cash-Out
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
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Disclosures. The information presented in this article is general market commentary, not financial, legal, or tax advice. Lendmire is a mortgage brokerage (NMLS# 2371349) — not a direct lender or depository institution — and loan placement is subject to lender underwriting. Nothing in this content represents a commitment to lend. Loan terms, pricing, and program availability vary based on borrower qualifications, property characteristics, and state of subject property, and are subject to change at any time. Lendmire complies with Equal Housing Opportunity requirements. Consumer access: nmlsconsumeraccess.org.