In short
A jumbo loan is a mortgage above the conforming loan limit, which is set every year by county. Because Fannie Mae and Freddie Mac don't buy these loans, each lender sets its own guidelines, often asking for stronger credit, more reserves and a larger down payment.
Reviewed by Jordan Carpenter, NMLS #2001895 · Last updated October 23, 2026
What is a jumbo loan, and when do you need one?
A jumbo loan is a mortgage for more than the conforming loan limit, the largest loan Fannie Mae and Freddie Mac will buy. That limit is set every year by county. If your loan amount (the price minus your down payment) lands above it, you'd need a jumbo loan. Jumbo lenders write their own guidelines, so they often look for stronger credit, more savings in reserve and a larger down payment. I'll confirm your county's current limit, show you whether your scenario crosses it, and help you compare jumbo and conforming options side by side.
Key takeaways
At Jordan & Jay Carpenter, my dad Jay and I help buyers and homeowners in Mesa, AZ finance homes that go above the conforming loan limit. Jumbo loans come with their own rules, and those rules change from lender to lender. As a broker, we can compare many wholesale lenders instead of one bank's single set of guidelines, then walk you through every option in plain English. Know your numbers first, then make the call.
What a Jumbo Loan Actually Is
A jumbo loan is a mortgage for more than the conforming loan limit. That limit is the largest loan Fannie Mae and Freddie Mac (the two big agencies that buy most home loans) will purchase. It's set every year, and it's set by county, so the number that pushes you into jumbo territory can change from one year to the next.
I don't want you guessing at that number from an old article. When you reach out, I'll confirm the current limit for your county and show you exactly where your loan amount lands. Know your numbers first, then decide.
When a Jumbo Loan Comes Up
In Mesa, AZ, most buyers never need a jumbo. But some do, and it usually looks like one of these:
- A move-up home where the price, minus your down payment, lands above the county limit
- A relocation into a larger or higher-priced home than you have now
- A refinance on a home that has gained a lot of value
- A second home or investment property, depending on the lender and program
Sometimes a bigger down payment brings the loan back under the limit, and a conforming loan ends up being the simpler fit. I'll show you both side by side so you can see the difference in your own numbers.
Jumbo vs. Conforming: A Plain-English Comparison
| Feature | Conforming Loan | Jumbo Loan |
|---|---|---|
| Loan amount | At or below your county's yearly limit | Above your county's yearly limit |
| Who buys the loan | Fannie Mae or Freddie Mac | The lender or a private investor |
| Underwriting (the file review) | Standard agency guidelines | Set by each lender, often stricter |
| Down payment | Can be as low as about 3% for qualified buyers | Usually larger |
| Credit | More flexible guidelines | Typically stronger credit expected, depends on the lender |
| Reserves (savings left after closing) | Often modest | Several months of payments commonly required |
Neither one is "better." The right loan is the one that fits your price, your savings and the payment you actually want to live with.
What Lenders Look At on a Jumbo File
Because jumbo loans aren't backed by the agencies, each lender writes its own rules. That's exactly why working with a broker matters here. My dad Jay and I can shop many wholesale lenders, and their jumbo guidelines can be very different from one another. Here's what usually carries the most weight:
- Credit: Jumbo lenders generally want a stronger credit profile. The exact requirement depends on the lender and program.
- Reserves: This is money you still have after closing, often measured in months of mortgage payments. It shows you could keep paying if life throws you a surprise.
- Down payment: Usually larger than conforming minimums, though it varies by lender.
- Income documentation: Expect a close look at pay stubs, tax returns and assets. If you're self-employed, some lenders offer other ways to document income, like bank statements.
- Debt-to-income ratio (DTI): Your monthly debts compared to your monthly income. Lenders want to see the bigger payment fits.
How I Approach a Jumbo Loan
First, I check whether you need a jumbo at all. Then I look at the payment, not just the approval. A bigger loan means a bigger monthly number, and I'd rather you have room to travel, save and handle a surprise bill than stretch to the max. Comfortable payment, not max approval.
From there, we shop your file across our wholesale lenders to find terms and guidelines that fit your situation, keep your paperwork organized, and stay with you from pre-approval to closing. Straight answers, no pressure.
Wondering about rates? Your rate depends on your scenario and the day's market. Reach out and I'll price it for real.
Everything on this page is an illustrative example for general education only. It is not an offer to lend, a rate quote, or a commitment to make a loan. Conforming loan limits are set yearly by county, and loan programs, terms and qualification requirements change over time and depend on your individual situation. Contact me for current details on your scenario.
Quick facts
- Loan type
- Non-conforming (above the conforming limit)
- When it applies
- Loan amount is above the conforming limit, set yearly by county
- Credit
- Typically stronger than conventional; depends on the lender and program
- Reserves
- Several months of payments commonly required
- Down payment
- Usually larger than conforming; varies by lender
- Occupancy
- Primary, second home or investment, depending on the program
Is this loan right for you?
Who it's for
- Buyers whose loan amount is above their county's conforming limit
- Homeowners refinancing a home that has grown a lot in value
- Self-employed buyers with strong savings who may need other ways to document income
- Buyers of a primary home, second home or investment property, depending on the program
Who it may not fit
- Buyers whose loan fits under the conforming limit (a conventional loan is usually simpler)
- Borrowers with little savings left after closing or a high debt-to-income ratio
Pros and cons
Pros
- Lets you finance a home priced above the conforming limit
- Guidelines vary by lender, so shopping many wholesale lenders can open more options
- Some lenders offer bank-statement or asset-based ways to qualify for complex income
- Can be used for primary homes, second homes and some investment properties
Trade-offs to weigh
- Usually requires stronger credit, more reserves and a larger down payment
- The file review is more detailed and asks for more paperwork
Frequently asked questions
What makes a loan a jumbo loan?
A loan is a jumbo when the amount you borrow is above the conforming loan limit for your county. That limit is set every year by county, so I'll confirm the current figure for where you're buying instead of relying on a number you found online.
Do jumbo loans require a bigger down payment?
Usually, yes. Because the loan is larger and isn't backed by Fannie Mae or Freddie Mac, lenders often ask for more down than on a conforming loan. How much depends on the lender and program, which is one reason it helps to shop several wholesale lenders. Let's run your real numbers and see what fits.
What credit score do I need for a jumbo loan?
There isn't one universal number. Jumbo lenders generally want a stronger credit profile than conforming loans, but the exact requirement depends on the lender and program. I'll look at your full picture and match you with lenders whose guidelines fit.
What are reserves, and why do jumbo lenders want them?
Reserves are the savings you still have after closing, often counted in months of mortgage payments. They show a lender you could keep paying through a surprise, like a job change or a big repair. Jumbo lenders commonly want more reserves than they would on a conforming loan.
Can I use a jumbo loan for a second home or investment property?
Often, yes, depending on the lender and program. Terms and requirements for a second home or rental can be different from a primary residence, so I'll walk you through what each option looks like for your situation.
Should I wait to buy until the market cools?
There's no perfect time to buy, only your time. Timing your life around headlines adds stress, not savings. What helps is knowing your own numbers: the payment, the cash you need and what you'll have left over. Once you see that clearly, the decision gets a lot easier.
How do I know if I even need a jumbo loan?
It comes down to your loan amount compared to your county's limit. I'll look at your price, down payment and goals, then show you whether a jumbo applies or whether a conforming loan or another program could be a better fit.
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Last updated October 23, 2026 · Reviewed by Jordan Carpenter, NMLS #2001895. This page is educational and not a commitment to lend; program details change — ask for current figures.