This mattered a lot in 2023. With Freddie Mac's 30 year fixed rate swinging from 6.48% in January to 7.79% in late October, even a quarter point difference translated into real money over the life of a loan. A borrower comparing jumbo and conventional options couldn't afford to assume one was cheaper without checking the actual numbers.
This article compares 2023 rate data, loan limits, eligibility rules, upfront costs, mortgage insurance, and total borrowing costs for both loan types. One note before we dive in: the historical rates cited here reflect 2023 market conditions. They are not current rate quotes, and today's pricing will look different.
Key Takeaways
- Jumbo loans exceed local conforming limits; conventional loans stay within FHFA caps and Fannie Mae or Freddie Mac rules.
- 2023 rate data shows jumbo and conforming rates traded places week to week, with no consistent winner.
- Strong jumbo borrowers sometimes received competitive or lower rates despite stricter underwriting.
- APR, points, mortgage insurance, and reserves matter as much as the note rate itself.
- Choose based on loan amount, liquidity, and qualification profile—not the label alone.
Jumbo vs Conventional: Quick Comparison
Loan Classification
A jumbo loan is a nonconforming mortgage. It exceeds the applicable FHFA conforming loan limit for the property's county, or it doesn't meet standard conforming eligibility rules. A conforming conventional loan stays within that same county limit and meets Fannie Mae or Freddie Mac requirements, so Fannie Mae or Freddie Mac can buy it on the secondary market.
2023 Interest Rate Snapshot
Weekly MBA survey data from 2023 shows the gap flipping back and forth:
| Week Ending | Conforming Rate | Jumbo Rate | Which Was Lower |
|---|---|---|---|
| June 16, 2023 | 6.73% | 6.80% | Conforming |
| July 7, 2023 | 7.07% | 7.04% | Jumbo |
| October 20, 2023 | 7.90% | 7.78% | Jumbo |
| December 15, 2023 | 6.83% | 7.12% | Conforming |
Source: MBA Weekly Applications Survey (contract rates at 80% LTV). Example release: MBA survey, week of Oct. 20, 2023. Confirm June, July, and December rows against the matching weekly MBA releases.
Qualification Profile
- Jumbo: Higher credit scores, larger cash reserves, and lower debt-to-income ratios are common, though standards vary by lender
- Conforming conventional: Broader eligibility range, including down payments as low as 3% for qualified borrowers
Upfront and Ongoing Costs
- Jumbo: Often requires a larger down payment and reserves, but PMI is often not required with about 20% or more equity.
- Conforming conventional: Allows for lower down payments, but typically requires PMI when equity falls below 20%.
Best Fit Borrower
- Jumbo: High value purchases, move-up buyers, and homes priced above the local conforming limit
- Conforming conventional: Loan amounts inside the local limit, plus broader eligibility or lower upfront cash needs
What Are Jumbo and Conventional Loans?
"Conventional" simply means a privately originated mortgage, not one insured by a government agency like the FHA or VA. Conventional loans include both conforming and jumbo loans; the two aren't opposites.
Conforming status in 2023 depended on the FHFA's published limits. The baseline one unit conforming loan limit was $726,200 across most of the country, with a high cost area ceiling of $1,089,300.
According to FHFA's official 2023 limit announcement, 2023 limits rose in all but two U.S. counties, so the applicable figure depended heavily on location. Always verify the exact county limit when reviewing a 2023 loan.
A jumbo loan is a conventional, nonconforming mortgage that exceeds that county limit or falls outside conforming eligibility rules. Jumbo limits and underwriting standards vary by lender, since these loans aren't standardized the way conforming loans are.
Common use cases break down like this:
- Jumbo loans: Luxury home purchases, move-up buyers, second homes, and any property requiring financing above the local conforming threshold.
- Conforming loans: Primary residence purchases within local limits, first time buyers wanting lower down payments, and borrowers with straightforward income documentation.
Neither label determines your rate on its own. The lender, your risk profile, loan features, and market conditions all factor into the final offer.
Jumbo vs Conventional: Real Interest Rate Comparison in 2023
Comparing 2023 rates fairly means matching the loan term, occupancy type, credit profile, down payment, and loan amount as closely as possible. Averages from different sources aren't interchangeable, since methodology varies.
Freddie Mac's Primary Mortgage Market Survey tracked national 30 year fixed conforming rates weekly throughout 2023:
- January 5: 6.48%
- July 13: 6.96%
- September 28: 7.31%
- October 26: 7.79%
- December 28: 6.61%
This data comes from Freddie Mac's 2023 PMMS archive, based on selected purchase applications submitted through Loan Product Advisor. These are average rates, not APRs, and they don't isolate jumbo pricing.
MBA's weekly surveys report jumbo figures alongside conforming rates at 80% LTV. Those surveys showed jumbo rates dipping below conforming rates in early July and late October, then climbing above them by mid December. Neither loan type held a consistent edge across the full year.
Why Jumbo Rates Sometimes Ran Lower
A few contributing factors, none of them guaranteed:
- Jumbo borrowers often carry stronger credit and larger reserves, which can offset the lender's added risk.
- Some lenders compete aggressively for jumbo business, especially relationship or portfolio clients.
- Fannie Mae and Freddie Mac's 2023 loan level price adjustments, redesigned for deliveries starting May 1, changed conforming pricing by credit score and LTV, occasionally narrowing the gap.
Why Jumbo Rates Sometimes Ran Higher
Other forces pushed jumbo pricing the other way:
- Larger loan balances carry more risk exposure per loan for the lender.
- Jumbo loans lack the standardized secondary market backing that conforming loans get through Fannie Mae and Freddie Mac.
- Property, appraisal, and reserve requirements tend to be stricter, which can factor into pricing.
A Hypothetical Payment Comparison
Say two borrowers each take a 30 year fixed loan at 7.00%, one at $700,000 (conforming) and one at $1,000,000 (jumbo). This is a simplified illustration, not a real quote:
- $700,000 loan: roughly $4,658 monthly principal and interest, about $977,700 total interest over 30 years.
- $1,000,000 loan: roughly $6,653 monthly principal and interest, about $1,396,700 total interest over 30 years.
The rate is identical here. The payment difference comes entirely from loan size, which is exactly why comparing note rates alone misses the bigger picture. Real cost also moves with:
- APR and discount points
- Lender credits and origination charges
- Appraisal fees, mortgage insurance, and reserve requirements
2023 jumbo rates also weren't reported through one uniform national benchmark the way conforming rates were. Compare written Loan Estimates issued around the same date with matching assumptions rather than relying on a single index.
Which Loan Was Better in 2023? Scenarios and Real World Considerations
Neither loan type won across the board in 2023—the better fit depended on loan size, cash on hand, and underwriting strength.
Consider a conforming conventional loan when:
- Your loan amount fits within the local limit
- You want a smaller down payment
- Preserving cash reserves matters more than borrowing power
Consider a jumbo loan when:
- The property price requires financing above the local conforming limit
- You can meet the lender's credit, income, and reserve requirements
- Keeping a smaller down payment matters more than staying under the conforming cap
Consider comparing both when a larger down payment would bring your loan below the conforming limit. Weigh the liquidity cost of that extra cash against available jumbo pricing.
What to Compare Before Deciding
- Loan Estimates from each lender, issued around the same date
- Rate lock period and points
- Lender credits and origination charges
- APR versus note rate
- Cash to close and reserve requirements
- Prepayment terms and whether the rate is fixed or adjustable
Three Scenarios
- High value primary residence: A buyer needs $1.2 million in financing in a county with a $1,089,300 limit. Because the full loan amount exceeds the local limit, jumbo financing is required.
- Near the limit: A buyer needs $750,000 in a county with a $726,200 limit. They compare a larger down payment (bringing the loan to $726,000, conforming) against a smaller down payment with jumbo financing that preserves cash.
- Competitive jumbo pricing: A borrower with excellent credit and healthy reserves receives a jumbo quote competitive with conforming rates, but must still evaluate the higher reserve requirement and total closing costs.
Residential One Lending helps eligible borrowers in its licensed states compare conventional and jumbo options side by side using actual Loan Estimates, not advertised averages. Approval and pricing still depend on licensing, lender availability, and individual underwriting—so request a personalized comparison before treating either path as the default.
Conclusion
The lower advertised rate in 2023 wasn't automatically the better mortgage, and jumbo loans weren't automatically the pricier option. The data shows both loan types traded the lower rate back and forth throughout the year.
Compare matching rate data, then look at the full cost picture: APR, points, insurance, reserves, and closing costs. From there, choose the structure that fits your loan amount, available liquidity, and qualification profile.
Frequently Asked Questions
Are jumbo rates higher than conventional?
Not always. Jumbo rates can run higher, lower, or roughly equal to conforming rates depending on the lender, market conditions, and borrower profile. Compare 2023 quotes on matching terms and dates for a fair read.
Why do jumbo loans have lower rates?
They don't always. Strong borrower profiles, lender competition for portfolio loans, and conforming loan level price adjustments can push jumbo rates below conforming in some periods—but that edge isn't guaranteed.
Is a jumbo loan non-QM?
Not necessarily. Many jumbo loans qualify as Qualified Mortgages, since QM status depends on underwriting and regulatory features, not loan size alone.
What does conforming mean on a mortgage?
A conforming mortgage meets FHFA loan limits and Fannie Mae or Freddie Mac eligibility rules. That means Fannie Mae or Freddie Mac can purchase the loan.
What is the limit for a conforming mortgage?
Limits change annually and vary by county and property type. Verify the official 2023 figure for the relevant location; the national baseline was $726,200, with a $1,089,300 ceiling in high cost areas.
What is the difference between a conforming loan and a jumbo loan?
Conforming loans stay within FHFA limits and meet GSE eligibility rules; jumbo loans exceed those limits. Jumbo loans often carry stricter credit, reserve, and down payment requirements.
