When a loan exceeds the conforming limit set by the Federal Housing Finance Agency it becomes a jumbo loan — and the rules change significantly. No government backing, stricter qualification standards, and a different risk calculus for lenders. Here is how jumbo loans work, what they cost, and how to calculate your payment accurately.
The conforming loan limit is the maximum loan amount that Fannie Mae and Freddie Mac will purchase from lenders. In 2026 this limit is $806,500 for a single-family home in most U.S. counties. In designated high-cost areas — primarily coastal metro markets — the limit extends up to $1,209,750.
Any loan that exceeds these thresholds cannot be sold to Fannie or Freddie and must be held on the lender's balance sheet or sold to private investors. This changes the economics for lenders and results in different underwriting standards, reserve requirements, and rate structures.
The practical implication: a borrower financing $810,000 in a standard-cost county is in jumbo territory even though they are only $3,500 above the conforming limit. The qualification process and rate they receive will differ materially from a borrower at $800,000.
Because jumbo loans carry no government guarantee, lenders apply significantly more rigorous standards to protect themselves against default risk.
Credit score requirements start at 700 for most lenders and rise to 720 or 740 for better pricing. Loans above $1.5 million often require 760 or higher. Debt-to-income ratios are typically capped at 43% compared to 50% for many conforming loan programs. Self-employed borrowers face additional documentation scrutiny with two years of tax returns and often a profit-and-loss statement prepared by a CPA.
Down payment requirements range from 10% for well-qualified borrowers to 20% or more for larger loan amounts. Some lenders offer 10% down jumbo products but these carry rate premiums and stricter reserve requirements. Unlike conforming loans with PMI, most jumbo loans simply require larger down payments to manage lender risk.
Historically jumbo rates ran 0.25% to 0.5% above conforming rates. This premium reflected the additional risk lenders assumed by keeping these loans on their books. In recent years the spread has compressed significantly and in some periods jumbo rates have been at or below conforming rates.
The reason for this compression: jumbo borrowers tend to have high credit scores, substantial assets, and low default rates. Lenders compete aggressively for this customer segment, particularly banks that can use jumbo loans as anchor relationships for wealth management and deposit products.
The practical advice: shop jumbo loans at multiple institution types. Banks often beat mortgage companies on jumbo products. Credit unions can be competitive for members. Pricing varies more widely in the jumbo market than in the conforming market because there is no standardized secondary market to compress spreads.
| Loan Amount | Type | Typical Rate | Monthly P&I |
|---|---|---|---|
| $750,000 | Conforming | 6.50% | $4,743 |
| $810,000 | Jumbo | 6.625% | $5,188 |
| $1,200,000 | Jumbo | 6.75% | $7,783 |
| $2,000,000 | Jumbo | 6.875% | $13,142 |
Reserve requirements are one of the most significant practical differences between conforming and jumbo loans. Conforming loans often require only two months of reserves. Jumbo loans typically require six to twelve months of full mortgage payments in liquid assets after closing.
Liquid assets include checking and savings accounts, money market funds, and vested retirement accounts at a discounted value. Real estate equity, business assets, and unvested stock options typically do not count. On a $1,500,000 loan with an $9,500 monthly payment, twelve months of reserves means $114,000 in liquid assets beyond the down payment and closing costs.
This reserve requirement catches many otherwise-qualified borrowers by surprise. Running the numbers before applying gives you time to position assets appropriately across liquid and illiquid accounts.
The payment calculation for a jumbo loan uses the same amortization formula as any fixed-rate mortgage. The key differences are the rate input, which may carry a small premium over conforming rates, and the absence of PMI even at lower down payment percentages on most products.
Example: You purchase a $1,000,000 home with 20% down. Your loan amount is $800,000. This is just below the conforming limit in most counties so you may still be in conforming territory. At $810,000 you cross into jumbo. At a 6.625% jumbo rate over 30 years your monthly principal and interest is $5,188. Add property taxes at roughly $1,000 per month and insurance at $150 for a total payment of approximately $6,338.
For a $2,000,000 purchase with 20% down the loan is $1,600,000. At 6.75% over 30 years the P&I is $10,379. Taxes and insurance on a home of this value might add $2,000 per month, bringing total monthly cost to over $12,000.
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Figures on this page are for educational purposes only. Jumbo loan limits, rates, and qualification requirements vary by lender and are subject to change. The 2026 conforming loan limit figures reflect FHFA guidelines. Truly Free Mortgage Calculator does not collect personal data and does not connect users with lenders.