A client puts an offer on a $1.35 million home in Irvine, assumes they’ll need “jumbo” financing at jumbo rates and jumbo documentation, and is pleasantly surprised to learn part of that loan actually qualifies under conforming guidelines. The opposite happens just as often in Del Mar or La Jolla, where a client assumes a $1.1 million loan is conforming because “that’s not that big a loan around here” — and it isn’t, until the county line says otherwise. Every year the numbers move, and every year a few deals get priced wrong because someone assumed last year’s jumbo loan threshold still applied.
The Problem: The Jumbo Line Moves Every Year, and It Moves Differently by County
The FHFA resets conforming loan limits annually based on national home price data, and in high-cost areas the limit is set at a county-specific ceiling rather than the national baseline. For 2026, the baseline conforming limit sits at $832,750, but Los Angeles and Orange counties — designated high-cost areas — carry a ceiling of $1,249,125 for a single-family home. San Diego County sits in between, on an intermediate tier tied to local median home prices, with financing above roughly $1,104,000 crossing into jumbo territory. That’s a meaningful gap between neighboring counties, and it means a loan amount that’s comfortably conforming in Orange County can be a full jumbo loan sixty miles south.
For advisors, the practical issue isn’t the exact numbers — it’s that clients (and sometimes their own bankers) plan a purchase around last year’s limits, or around a number they heard from a friend in a different county. That mismatch shows up late, usually after an offer is already in, when the actual underwriting requirements turn out to be stricter or the pricing turns out to be different than expected.
The Solution: Know Which Side of the Line a Deal Falls On, Early
A jumbo loan is simply financing above the conforming limit for the property’s county, which means the loan doesn’t fit Fannie Mae or Freddie Mac guidelines and instead follows a lender’s own portfolio underwriting standards. That has real consequences: jumbo underwriting typically wants higher credit scores (often 700+), lower debt-to-income ratios, larger down payments — commonly 20% or more on a purchase — and more thorough documentation of assets and reserves, sometimes 12 months of principal, interest, taxes, and insurance held in reserve for larger loan amounts.
None of that is disqualifying for the clients advisors typically refer — it’s simply a different rulebook, and the earlier it’s identified, the smoother the transaction. Confirming the conforming limit for the property’s specific county, before an offer is written, lets everyone set accurate expectations on down payment, reserves, and closing timeline.
What This Looks Like in Practice
Consider a client purchasing a $1.6 million home in Newport Beach with 25% down, leaving a $1.2 million loan — comfortably under the $1,249,125 Los Angeles/Orange County ceiling, so it qualifies for conforming high-balance pricing rather than full jumbo terms. A near-identical client buying a $1.6 million property in Carlsbad, in San Diego County, with the same down payment and $1.2 million loan amount, crosses the county’s roughly $1,104,000 ceiling and needs a true jumbo loan — different pricing, different reserve requirements, and a different lender shortlist. Same price point, same down payment, two different financing paths, purely because of the county line.
For a client with concentrated equity compensation or a business that just had a strong year, the jumbo conversation often pairs with other Non-QM considerations — bank statement income, asset depletion, or RSU-heavy pay — since HNW borrowers frequently need jumbo loan amounts and alternative documentation at the same time.
A Quick Check Before the Offer Goes In
If you have a client shopping in the $900K–$2M range anywhere in LA, Orange County, or San Diego, it’s worth a five-minute check on which side of the current conforming limit their target price falls on — before they’re competing for a property and negotiating terms under time pressure. I’m happy to run that check with you on any client scenario.
Jeff Singleton | Advisor Aligned Mortgage | NMLS# 215354 | CA BRE# 01510260 | (949) 344-1717 | advisoralignedmortgage.com