Jumbo loans explained: financing above conforming limits

A jumbo loan is any mortgage above the FHFA conforming loan limit — the threshold above which Fannie Mae and Freddie Mac won’t buy the loan. For 2026 the baseline limit is $806,500 for a single-family home; in high-cost counties (NYC, San Francisco Bay Area, much of Hawaii) the ceiling is $1,209,750 (150% of the baseline). Many counties sit somewhere in between — LA County, for instance, hits the full ceiling, while a county like Sacramento gets a mid-tier limit. Look up your county specifically: the limit is set per county and matters down to the dollar. 2-, 3-, and 4-unit properties have higher limits ($1,032,650, $1,248,150, and $1,551,250 baseline).

Above that line, you’re in jumbo land. Different rules, different underwriting, sometimes different rates — not always worse.

Why jumbo is different

Conforming loans get sold to Fannie or Freddie, then packaged into agency MBS. Jumbo loans don’t. They’re held in the lender’s portfolio (think large banks, credit unions) or sold to private investors. The lender has skin in the game, so they underwrite to a higher standard.

That cuts both ways. Tighter underwriting, but the bank often wants your jumbo — jumbo borrowers tend to be wealthy clients they want to cross-sell. Banks that pursue private wealth (Chase Private Client, Bank of America Private Bank, Morgan Stanley, Schwab Bank, and the former First Republic team now at JPMorgan) often offer competitive jumbo pricing as a relationship pitch — sometimes contingent on moving $250k–$1M of investable assets to the bank. Worth the conversation if you’ve got the assets to move.

Jumbo underwriting is tighter

Compared to conforming:

• Credit: typically 700+ FICO; 720+ for best pricing; some programs require 740+. A handful of portfolio lenders will go to 680 with 25%+ down.
• Down payment: 10–20% minimum. A few lenders allow 5% down on jumbo (with 760+ FICO, 12 months reserves, and a rate hit), but 20% is the norm.
• DTI: usually capped at 43%, sometimes 38–40% for the best rate tiers. A few wealth-channel programs flex to 49% with strong reserves and asset depletion math layered on top.
• Reserves: 6–12 months of PITI in liquid assets after closing — on top of your down payment and closing costs. Some lenders go to 18–24 months over $2M loan amounts.
• Income docs: full doc with 2 years tax returns, 2 years W-2s, 2 months bank statements. No DSCR-only or stated-income paths for true jumbo (those exist in non-QM but they’re a different product).
• Appraisal: some lenders require two independent appraisals on loans above ~$1.5M–$2M; a few portfolio shops want them on every loan above $1M. Field reviews and CDA (collateral desktop analyses) are also common second-look tools.

Pricing: not always more expensive

Conventional wisdom says jumbo rates are higher. Often true, but not always. In some rate environments — particularly when the agency MBS market is stressed but bank portfolios are flush — jumbos price below conforming. The borrower profile is so strong (high income, deep reserves, low DTI) that banks treat it as low risk.

What this means practically: always quote both if your loan amount is near the conforming limit. Sometimes you’re better off with a $810,000 jumbo at 6.50% than an $806,500 conforming at 6.75%. Your loan officer should run both.

The 80/10/10 piggyback alternative

Don’t want a jumbo? Split the loan.

Standard 80/10/10 piggyback:

• 80% first mortgage at conforming limits (so it qualifies as a conventional loan, not jumbo)
• 10% second mortgage or HELOC for the gap
• 10% down payment

On a $1,000,000 home: $800k conventional first, $100k HELOC second, $100k down. The first stays under the conforming limit, so you get agency pricing on the bulk.

When piggyback beats jumbo:

• Jumbo rates are meaningfully above conforming (0.50%+)
• You qualify for the conforming first easily on its own
• The HELOC rate is variable but you plan to pay it down quickly
• You want to avoid the jumbo reserve requirements (the conventional first has lower reserve hurdles)

When jumbo beats piggyback:

• Jumbo rates are at or below conforming (run the math)
• You don’t want a variable-rate HELOC payment alongside your fixed first
• The HELOC origination fees and ongoing risk aren’t worth saving 0.10–0.25% on rate
• You want a single loan to manage

Run the mortgage calculator twice and compare total monthly + 5-year total interest.

Reserve requirements in detail

Reserves = liquid assets you can verify after closing, expressed as months of full PITI (principal, interest, taxes, insurance + HOA).

A typical jumbo lender wants:

Loan amount	Required reserves
Up to $1M	6 months PITI
$1M–$1.5M	9 months PITI
$1.5M–$2M	12 months PITI
$2M+	18–24 months PITI

(Reserves on a second home or investment property are higher across the board — often add 6 months on top.)

What counts as reserves:

• Checking/savings: 100%
• Brokerage (after-tax): 100% of liquid value
• Retirement (401k/IRA): typically 70% of vested balance — the haircut accounts for taxes and penalties on early withdrawal. Doesn’t mean you have to use them; just that they count.
• Crypto: usually doesn’t count, or counts at 50–70% depending on lender. Move to a USD account well in advance.
• Restricted stock units not yet vested: doesn’t count
• HELOCs and lines of credit: don’t count

The reserves must be verified at application and at closing. Plan not to drain them between the two.

Doc options beyond traditional full-doc

For jumbo borrowers with non-W-2 income, two real paths exist:

Asset depletion (or “asset utilization”): qualify based on liquid assets rather than income. The lender divides your eligible assets by a period (commonly 84–360 months) to derive an imputed monthly income. Common for retirees with $2M+ liquid but no W-2 income. Usually requires 700+ FICO and 30%+ down.

Bank statement loans: 12–24 months of personal or business bank statements averaged into qualifying income. Common for self-employed borrowers. Higher rates than full-doc (often 0.75–1.5% premium) and almost always non-QM, not true jumbo. See the self-employed mortgage guide for the full picture on this path.

Concrete example: $1.4M home, 20% down

Purchase price $1,400,000. 20% down = $280,000. Loan = $1,120,000 — well into jumbo territory.

Closing costs (rough): 2.5–3.5% of price = $35k–$49k. Higher than typical because of two appraisals (often required above $1.5M; close to it here), elevated title insurance premium, and higher attorney/escrow fees in many high-cost states.

Monthly PITI estimate (6.875% rate, 1.25% property tax, 0.4% insurance, no HOA):

• P&I: ~$7,360
• Tax: ~$1,460
• Insurance: ~$465
• Total: ~$9,290/mo

Required reserves at 9 months: $83,610 in liquid post-close. Add to the $280k down + ~$42k closing costs and you need roughly $405,000+ liquid before you can comfortably make this purchase. Less if some reserves come from retirement accounts at the 70% haircut.

Income to qualify (43% DTI cap, no other debts): roughly $259,000/yr gross. Drops to ~$210k if the jumbo lender accepts a 50% DTI with strong reserves.

Multiple financed properties

Worth flagging if you already own rentals: Fannie/Freddie ramp up reserve requirements as you add financed properties. The shorthand:

• 1–4 financed properties: standard reserves apply
• 5–6 financed properties: 6 months PITI on each non-subject property, plus 2 months PITI on the subject
• 7–10 financed properties: 8 months PITI on each non-subject, 720+ FICO required, larger down payment

Jumbo lenders are even stricter and often cap at 4–6 total financed properties depending on the program. If you’re an investor stacking properties, talk to a portfolio lender about “blanket” or asset-based options before hitting the agency wall.

Common mistakes

• Not shopping the conforming-vs-jumbo crossover. Loan amounts within $20k of the conforming limit deserve quotes for both.
• Underestimating reserves. Lenders want to see post-close liquidity — not just enough to close. Plan for 6–12 months PITI on top.
• Moving money around in the 60 days before close. Large unexplained transfers between accounts trigger underwriter letters of explanation. Consolidate well before application.
• Using crypto as the down payment without selling early enough. Lenders need a 60-day paper trail of seasoned funds. Convert to USD in your bank at least 60 days before application, ideally 90.
• Ignoring the piggyback option when jumbo rates spike. Splitting the loan can save 0.50%+ on the bulk amount.
• Assuming all banks have the same jumbo program. They don’t. Quote at least 3, and include at least one private bank or wealth channel.

Tools you’ll use

• Mortgage Calculator — model jumbo and piggyback scenarios
• Affordability — income needed at higher loan amounts
• Property Type Impact — jumbo treats condos and 2-4 units differently
• Closing Cost Estimator — high-cost-area defaults
• PMI Removal — if you go <20% down on jumbo with PMI

For program context, see the loan types guide.