Current jumbo guidelines, updated from one source.
The block below is the jumbo program reduced to the figures that decide a file, read from Lendmire’s single guideline source and refreshed on this page when the wholesale lanes change: the amount ceiling, the credit floor, the leverage, and the ratio, followed by the lane table and the reserve and appraisal rules lane by lane.
From one dollar over the conforming limit to $5,000,000
The ceiling is $5,000,000 for a purchase or rate-and-term refinance on the largest lanes; cash-out runs lower. The floor is the conforming limit for the county, one dollar above it, except on two lanes that start at a fixed amount whatever the limit, as the lane table shows.
Lanes open at the floor and step up by leverage and structure
The lanes open at a 660 decision score and step up from there: the top-leverage lanes sit at the floor, the forty-year and interest-only structures ask for more, and the lane with the lowest leverage asks for the most. The score chooses the lane as much as the lane chooses the score.
Loan-to-value on the top lane; eighty percent on the rest
Leverage reaches 90% loan-to-value on the top lane, within that lane’s amount range and credit floor; the other high-leverage lanes stop just short of it, and the adjustable, interest-only, and highest-credit lanes stop at eighty percent. Second homes and investment property ride the same lane limits where the lane allows the occupancy.
On the fixed lanes; lower on the adjustable and interest-only lanes
Total debt against gross income runs to 50% on the fixed lanes and the expanded adjustable lane; the prime adjustable lane and one fixed lane stop lower, and the interest-only lane lower still. The ratio is measured on the full housing payment plus every other obligation, with reserves checked separately.
| Lane | Structure | Credit | Max DTI | Max leverage | Loan amounts | Occupancies |
|---|---|---|---|---|---|---|
| Lane A | 30-year fixed, 40-year fixed, 40-year fixed with 10-year interest-only | 700+ | 50% | 89.99% CLTV | above the conforming limit to $5M | primary, second, investment (cash-out: primary and second only) |
| Lane B | 30-year fixed | 660+ | 50% | 89.99% CLTV | above the conforming limit to $3M | primary, second, investment |
| Lane C | 30-year fixed | 720+ | 50% | 80% CLTV | above the conforming limit to $3.5M | primary, second |
| Lane D | 30-year fixed (660+); 40-year fixed and 40-year fixed with 10-year interest-only (680+, 80 percent LTV, to $2M) | 660+ | 50% | 89.99% LTV | above the conforming limit to $5M | primary, second, investment |
| Lane E | 30-year fixed | 660+ | 50% | 90% LTV | $400,000 to $3.5M | primary, second, investment |
| Lane F | 30-year fixed | 700+ | 45% | 80% LTV | $600,000 to $3M | primary |
| Lane G | 5-, 7- and 10-year adjustable-rate | 680+ | 45% | 80% LTV | above the conforming limit to $5M | primary, second, investment |
| Lane H | 30-year fixed with a 10-year interest-only period and 20-year amortization | 700+ | 43% | 80% LTV | above the conforming limit to $5M | primary, second |
| Lane I | 7- and 10-year adjustable-rate with expanded ratios | 660+ | 50% | 80% LTV | above the conforming limit to $3M | primary, second |
| Lane | Reserves | Two appraisals | Non-warrantable condos | Temporary buydowns |
|---|---|---|---|---|
| Lane A | primary purchase to $5M: 6–12 months; second home to $3M: 9–12; investment to $2.5M: 12; cash-out: 9 months minimum | above $2M | No | No |
| Lane B | to $2M per the automated finding; over $2M six months in addition; reserve table: primary purchase to $3M 6–12 months, second home to $3M 9–12, investment to $1.5M 12; cash-out primary to $2M 6–12, second to $2M 9–12, investment to $1.5M 12 | above $1.5M | Yes | Yes |
| Lane C | primary purchase to $2M 6–9 months, over $2M 24 months; second home to $2M 6–9; cash-out primary to $2M 6–9, second to $2M 6 | above $2M | No | No |
| Lane D | to $2M per the automated finding; over $2M six months in addition | above $2M | Yes | Yes |
| Lane E | to $2M per the automated finding; $2M–$3M six months in addition; over $3M twelve months in addition | above $2M | No | Yes |
| Lane F | per the automated finding | one appraisal | No | No |
| Lane G | over $2M eighteen months in addition to the automated finding | above $2M (one appraisal for purchases to $3M and refinances to $2M; two for refinances over $2M) | No | No |
| Lane H | to $1M twelve months in addition to the automated finding; over $1M twenty-four months | above $2M (one appraisal for purchases to $3M and refinances to $2M; two for refinances over $2M) | No | No |
| Lane I | primary purchase to $3M 6–18 months; second home to $3M 12–18; cash-out primary to $1.5M 12 (cash to $250,000), $1.5M–$2M 15 (cash to $500,000); second home cash-out 12–18 months | above $1.5M | No | No |
Structures across the nine lanes: 30-year fixed; 40-year fixed (manual underwrite on one lane); 40-year fixed with a 10-year interest-only period; 5-, 7- and 10-year adjustable-rate; 30-year fixed with a 10-year interest-only period and 20-year amortization. Purchases, rate-and-term refinances, and cash-out refinances; principal residences, second homes, and investment property where the lane allows. The headline figures are the best cell across lanes; no single lane carries all of them, and a Lendmire loan officer matches the file to the lane that fits.
Current jumbo snapshot · updated October 1, 2026 · a jumbo loan begins one dollar above the conforming limit for the county, which the FHFA resets each year and a Lendmire loan officer confirms · amounts at or below the limit are the conventional program · Lendmire is a broker, never the lender.
Not a commitment to lend, not an offer of credit, not a quote. The figures shown are current wholesale jumbo lane parameters that change without notice and apply only after full underwriting of the borrower and the property; no single lane carries every headline figure, and the lender is not named. Conforming loan limits apply by county. Lendmire is a mortgage broker licensed in sixteen states for consumer mortgages, never the lender. NMLS #2371349.
What a jumbo loan is — and how the file is qualified.
Every San Francisco jumbo file is matched to a lane and then qualified on that lane’s rules. The automated finding, where the lane uses one, applies the rules; it does not soften them. Below, the four pieces a buyer needs to understand: the threshold, the credit and ratio, the reserves, and the appraisals.
For the program overview, see Lendmire’s jumbo loan program, or the statewide guide at Jumbo Loans in California; for the conforming limit by county, see the FHFA.
Above the conforming limit
The FHFA sets a conforming limit for each county every year, higher in high-cost areas, and a loan one dollar above it is jumbo. On a San Francisco purchase the loan officer checks the county’s current limit first, because the same price can be a conforming high-balance loan in one county and a jumbo loan in the next.
Credit, ratios, and the lane
A derogatory event on a San Francisco jumbo file is seasoned the way the agencies season it, and the automated finding reads the whole credit history rather than the score alone. Where a lane is a manual underwrite, as the forty-year fixed is on one lane, the underwriter reads the file by hand.
Reserves by amount and occupancy
On a jumbo file the reserves are the second down payment. The lane sheet names the months by amount band and occupancy, the interest-only lane asks for a year or two, and the calculator turns the months into a dollar figure at the payment entered so a San Francisco buyer sees the cash the file needs beyond the closing table.
One appraisal, or two
Value on a jumbo file is scrutinized because no agency stands behind the loan. One appraisal to the lane’s threshold, two above it, no waivers on most lanes, and a condition review expecting the home to match its price: that is the appraisal picture for a San Francisco jumbo purchase.
Every input below is yours: the San Francisco price, the down payment, the structure, the occupancy, the rate, and the escrows. The lane table supplies the leverage limits, the ratio ceilings, the reserve months, and the appraisal thresholds; the calculator reports which lanes fit the combination entered.
Where San Francisco’s larger loans are written — and how jumbo fits.
A jumbo loan is sized against the top of a local market, and these are San Francisco’s numbers from the U.S. Census Bureau: how many households own, what a typical home is worth, and what households earn. The jumbo range sits above the median, and the figures show how far above it the market reaches.
Market context only. A high median value means more of the market prices past the conforming limit and more files are jumbo; a modest median value means the jumbo range is the top slice of the market. The lane rules do not move; the share of homes they apply to does.
Data sources: U.S. Census Bureau — ACS 5-Year (2024) housing and population estimates, including tenure, home values, gross rents, and household income.
Distinct San Francisco neighborhoods, distinct jumbo files.
No single jumbo file describes San Francisco. The neighborhoods below differ in housing stock, price, occupancy mix, and the appraisal questions they raise, and each one shapes how a loan above the conforming limit is put together.
Second homes and pied-à-terre purchases
A pied-à-terre in San Francisco is a second-home jumbo file: most lanes reach it, the reserves run deeper, and the structure wanted picks the lane. A loan officer prices the lanes that fit before the offer. Roughly 139,057 San Francisco households own their homes on the latest Census estimate — 38% of all households, the pool a jumbo purchase joins.
Two-to-four-unit homes above the limit
The multi-unit jumbo file in San Francisco is a narrower lane choice: investment occupancy is allowed on several lanes but not all, and the loan officer prices the file on each before choosing. On a San Francisco home priced well above the median, a jumbo loan at the program’s top leverage finances up to 90% of the value — the balance of the price is the down payment, before reserves and closing costs.
Close-in architect-designed homes
Value drives the San Francisco jumbo file on a one-of-a-kind home: the loan is sized on the lower of two appraisals above the threshold, and a larger down payment is the usual answer when the appraisals land apart. About 62% of San Francisco’s households rent — roughly 224,913 renter households on the latest Census estimate.
High-rise and luxury condominiums
A San Francisco unit above the limit is a jumbo file with the project review added. Established buildings usually pass; buildings with rental programs, heavy commercial space, or litigation move to the non-warrantable lanes, which carry their own leverage and reserves. San Francisco counts a population near 830K within the San Francisco-Oakland-Fremont, CA area.
Newer luxury infill and new construction
New luxury construction in San Francisco appraises more easily than the one-off homes around it, which moves the question to the amount: well above the limit, the lane’s reserve months rise and two appraisals apply above the threshold, and the structure chosen sets the lane. Median household income in San Francisco sits near $140,970 on the latest Census estimate.
Estate properties
An estate purchase in San Francisco is a jumbo file on the lanes that reach the amount, with the deepest reserves in the table and two appraisers valuing a home with few comparable sales. Beyond the ceiling the investor and portfolio programs take over. The median owner-occupied home value in San Francisco runs near $1,394,500 on the latest Census estimate.
What the program accepts is the same everywhere in San Francisco: houses, warrantable condominiums and, on two lanes, non-warrantable ones, planned developments, and two- to four-unit homes where the lane allows investment property, each at its own leverage. What it declines is the amount at or below the conforming limit, which belongs to the conventional program.
Four ways San Francisco buyers put a jumbo loan to work.
A good use of a jumbo loan is one its shape fits: a loan amount above the limit, a score at or above the lane floor, reserves in hand, and a property that two appraisers can value. Four common San Francisco uses follow.
Finance a second home or an investment property
Jumbo lanes finance the San Francisco home the buyer does not live in full time, and the lane table shows which ones: second homes on most lanes, investment property on several, each with its own reserve months and a cap on cash-out where the lane allows it.
Refinance or take cash out above the limit
A San Francisco owner with a jumbo balance refinances on the same lanes, rate-and-term to the lane’s leverage or cash-out to a lower ceiling and a cash cap on some lanes; one lane also allows conforming amounts on a cash-out refinance at lower leverage after six months of ownership.
Buy above the limit with a modest down payment
For a San Francisco purchase above the limit, the top lanes carry the leverage the conforming program carries below it; the price of that leverage is the reserve months, the lane’s credit floor, and, above the threshold, a second appraisal from a second appraiser.
Finance a larger multi-unit home
The larger multi-unit San Francisco home is financed on jumbo terms when the loan outruns the limit: investment leverage and reserves on the lanes that allow the occupancy, rents counted toward qualifying, and the appraisals the amount calls for.
Estimate the payment on a San Francisco price before requesting a quote.
The program’s own arithmetic on your San Francisco inputs: price less the down payment, amortized for the structure, with escrows added, the lanes matched, and the reserves and appraisals read from the lane table. The actual rate, payment, and costs come in writing from a licensed loan officer.
San Francisco jumbo payment estimate
The defaults are a San Francisco sketch, not your purchase: enter the actual price, down payment, structure, and occupancy.
Editable benchmark: 7.28% as of October 1, 2026 · Freddie Mac 30-year average via FRED®. A conventional market reference, not a jumbo loan quote.
Illustrative starting assumptions: a $2,225,000 price in the jumbo range for San Francisco, ten percent down on the top-leverage lane, a thirty-year fixed structure at the current Freddie Mac conforming benchmark, property taxes and insurance estimated for California (U.S. Census Bureau). Every field is editable.
Illustrative estimate only — not a Loan Estimate, approval, quote, or commitment to lend. The rate field carries the weekly Freddie Mac thirty-year conforming benchmark, a market reference and not a jumbo loan quote; jumbo rates are set by the lender and the lane at lock and differ from the conforming benchmark. An adjustable-rate scenario is shown at the benchmark for the whole term; the rate after the initial period is unknown. Reserve months and appraisal counts follow the lane sheet for the amount band; the automated finding may require more. Taxes, insurance and dues are editable estimates; closing costs are not included. The conforming limit for the county decides whether a loan is jumbo at all. Licensed in sixteen states for consumer mortgages.
Same purchase, three ways to structure it.
The alternatives put the jumbo loan in perspective: the conforming high-balance loan has the agencies’ rules and limits, the split structure has two loans and two payments, the jumbo loan has one loan on the lender’s terms. The comparison below is written for a San Francisco buyer weighing all three.
Jumbo, high-balance conforming, or a conforming first with a second lien.
The jumbo loan fits the San Francisco buyer whose loan amount sits well above the limit, who holds the reserves the lane requires, and who wants a single mortgage with a structure chosen to fit the plan. A buyer just over the limit with thin reserves is where the alternatives compete.
In counties the FHFA designates as high-cost, the conforming limit itself is higher, and a loan under that figure is a conforming high-balance loan on the agencies’ rules: agency leverage, agency reserves, an appraisal waiver where offered. For a San Francisco buyer under the figure it is usually the simpler route. See Lendmire’s conventional loan program.
Two loans instead of one: a conforming first under the county limit and a HELOC second for the rest. It keeps the agencies’ rules on the larger loan and avoids the jumbo reserve and appraisal rules, at the cost of a variable-rate second lien and two payments. A San Francisco loan officer runs it beside the jumbo lane. See Lendmire’s home equity line of credit.
Where each one fits: the jumbo lane for the loan well above the limit, the high-balance conforming loan where the county’s figure reaches high enough, and the conforming-plus-HELOC structure for the loan just over the line with a buyer who prefers agency terms on the larger piece.
What to prepare for a San Francisco scenario review.
A jumbo file is documented more fully than a conforming one, because no agency stands behind it; here is what a San Francisco scenario review typically draws on.
This is a general preparation guide, not a universal checklist. The selected lender may request additional information based on the transaction, the property, the lane, the automated finding, and the income picture. Nothing here is legal or tax advice.
Local details that can change the loan.
What moves a San Francisco file most often: the reserves, the appraisals, the lane, the conforming limit, the ratio ceiling for the structure, the occupancy, the condominium review, and the cash-out cap.
Use these checks to keep the San Francisco file clean and fundable.
A San Francisco file is ready for review once three answers are in hand: the reserve months, the appraisal count, and the lane.
- Count the reserves: the calculator shows the months as dollars at the payment entered.
- Plan the appraisals: two appraisals from two different appraisers above the lane’s threshold.
- Mind the ratios: the fixed lanes carry the widest ratio ceiling; the interest-only lane the tightest.
Reserves scaled to the amount
What counts is settled by the lane: liquid accounts in full, retirement and investment accounts at a haircut, business funds with documentation showing the business is not impaired. Gifts may cover part of the picture on some lanes. A San Francisco buyer should know the lane’s rule before counting any account.
One appraisal or two, by lane threshold
The threshold follows the loan amount rather than the price, so a San Francisco buyer can sometimes stay under it with a larger down payment on the same home. The loan officer sizes the loan with the threshold in view, and the lane table shows where each lane draws it.
The ratio ceiling for the structure
The automated finding decides how much of the ceiling a San Francisco file gets on the lanes that use one; a manual lane is read by hand. Reserves sit beside the ratio as a second test, and a file can clear the ratio and still fall short on reserves.
Cash-out caps and seasoning
Where a San Francisco owner’s current loan is worth keeping, a second lien usually beats a cash-out refinance of the whole balance; where the first mortgage should be replaced anyway, the cash-out lane does both at once. The loan officer runs the two side by side.
Condominiums: warrantable or not
Two lanes accept non-warrantable projects, which is a jumbo specialty the conforming program lacks entirely. A San Francisco buyer of a high-rise or resort unit above the limit often finds those lanes are the only route, with their leverage and reserves applying.
From a San Francisco pre-approval to keys in hand.
A jumbo purchase runs in a fixed order: pre-approval on the lane, the reserves, and the ratio; contract and one or two appraisals; underwriting that verifies the reserves and the income against the lane; and closing on the structure chosen. Here is that order for a San Francisco buyer.
Pre-approval
The first conversation settles the shape: whether the loan is jumbo at all, which lanes carry the leverage and the structure wanted, how many reserve months the amount calls for, and what the ratio ceiling allows. The San Francisco pre-approval names the lane.
Contract and appraisals
With the contract signed, the lender orders one appraisal, or two from two different appraisers where the amount crosses the lane’s threshold. Seller contributions are checked against the lane, and a condominium’s project documents are collected for the lender’s review.
Underwriting
The lane sheet says what the file needs; the underwriter confirms the file has it, by hand on a manual lane. A San Francisco buyer who assembled the reserves and the income paper at pre-approval clears conditions quickly; one who did not spends the time here instead.
Closing
At closing the loan is funded on the lane and the structure chosen, the escrows for taxes and insurance are set up, and the reserves are left in the accounts that were verified. A San Francisco buyer signs the note and the security instrument and occupies the home as the stated occupancy requires.
A brokerage that reads every lane.
Lendmire never lends. It reads a San Francisco file against the jumbo lanes, the conforming high-balance loan, and the conforming-plus-HELOC structure, matches the file to the one that fits, and keeps the reserves, the appraisals, and the ratio ceiling in front of the buyer before anything is signed.
Every lane, one set of numbers
The comparison printed on this page is run for real on every San Francisco file: the jumbo lanes beside the high-balance conforming loan beside the conforming first with a HELOC second, and the written terms follow from it.
Reserves and appraisals explained before the offer
No San Francisco buyer should learn in underwriting that the file needs a year of reserves or a second appraisal. The loan officer walks through the lane’s rules for the amount entered and shows the alternative of a smaller loan under the threshold.
Licensed, consumer-purpose, in writing
What this page shows are the lane parameters; what a specific San Francisco loan gets is a written set of terms from a licensed loan officer after the review, on the lane chosen and the structure selected. Lendmire is a broker, never the lender.
Trusted by buyers & families alike.
San Francisco jumbo loan FAQs
The questions below come up on nearly every San Francisco jumbo conversation. The answers are general; the figures in the snapshot above are the program’s current parameters.
What is a jumbo loan, and when do I need one?
A jumbo loan is a mortgage whose amount runs past the conforming limit the FHFA sets for the county, so Fannie Mae and Freddie Mac will not buy it and a private lender writes it on its own lane rules. You need one in San Francisco when the loan amount, not the price, exceeds the county’s limit and you do not want a larger down payment or a split structure to stay under it.
How large can a jumbo loan be in San Francisco?
Up to the ceiling in the snapshot for a purchase or rate-and-term refinance on the largest lanes, with cash-out capped lower on the biggest lane; the floor is one dollar above the county’s conforming limit, except on two lanes that start at a fixed amount whatever the limit. The conforming limit itself is confirmed by a loan officer rather than quoted here.
What credit score do I need for a jumbo loan?
The snapshot shows the lowest floor in the table. More useful than the number is what sits around it: a seasoned derogatory event is inside the rules after its waiting period, and the score sets the lane more than it sets the cost on a San Francisco jumbo file.
How much will a jumbo loan lend against the home?
It is a lane question. The lane table shows each lane’s maximum beside its credit floor and amount range, and the loan officer reads all three together before sizing the down payment on a San Francisco purchase.
How much do I need in reserves for a jumbo loan?
More than a conforming loan asks: the lane names the months by amount band, the months rise above the thresholds, and second homes and investment property carry more than a principal residence. Liquid accounts count in full; retirement and investment accounts count at the lane’s haircut.
How is income documented on a jumbo loan?
The same way the agencies document it, read more carefully: two years, stable, likely to continue. Income that is declining, new, or hard to document moves a San Francisco file toward a manual lane or an investor program.
Should I use one jumbo loan or a conforming first with a HELOC second?
Compare them on the same price and down payment: the jumbo payment with its reserves against the conforming payment plus the HELOC payment with theirs. For a San Francisco purchase just over the line the split structure often wins; well over it the jumbo lane does.
Can I get a jumbo loan after a bankruptcy or foreclosure?
Each event has its own period counted from a specific date, and the lane’s underwriting confirms it from the documents. Clean credit since the event, a rebuilt score, and the reserves the lane requires carry the file once the period has run.
Can a jumbo loan finance a non-warrantable condominium?
Two of the lanes accept non-warrantable projects, which is a jumbo specialty the conforming program lacks. A San Francisco buyer of a resort or high-rise unit above the limit often finds those lanes are the only route.
Can I use a jumbo loan for a second home or an investment property?
It can. The occupancy picks the lane and the reserves, and the stated occupancy must be the one the buyer keeps: a second home for the owner’s use, a rental rented from the start.
From a San Francisco pre-approval to keys in hand.
Begin with a scenario review: the price, the down payment, the structure, the occupancy, the score, and the reserves. A licensed Lendmire loan officer matches the file to the lanes that fit, prices each, runs the alternatives, and puts the terms in writing.
This guide covers San Francisco — for the statewide guidelines, markets, and scenarios, see Jumbo Loans in California, part of Lendmire’s jumbo loan program.
Nearby markets in California: San Jose · Sacramento · Fresno · Los Angeles · San Diego
Related programs: Conventional Loans · Super Jumbo DSCR Loans · Super Jumbo Bank Statement Loans