Current conventional guidelines, updated from one source.
The block below is the conforming rulebook reduced to the figures that decide a file, read from Lendmire’s single guideline source and refreshed on this page when the agencies or the wholesale overlays change: the down payment by buyer, the credit floor, the mortgage insurance threshold and its cancellation points, and the ratio maximums.
First-time buyer; 5% standard; 97% loan-to-value at the top
On a principal residence the down payment starts at 3% for a first-time buyer and 5% otherwise, the top leverage being 97% loan-to-value. Second homes and investment properties ask for more, as the leverage table shows, and the price of any leverage above 80% is mortgage insurance.
Priced on the score; no agency minimum with an automated approval
620 is the working floor, a wholesale overlay rather than an agency rule, since Fannie Mae requires no minimum score for a loan the automated system approves and 620 only on a manual fixed-rate file. Above the floor, each step up in score lowers the cost of the loan and of the insurance.
Required above 80% LTV; removed at 80% by request, 78% automatically
Above 80% loan-to-value the loan carries private mortgage insurance; at or below it, none. The insurance cancels on request at 80% of the original value and automatically at 78%, which is the single largest structural difference from FHA, whose premium at full leverage lasts for the term.
With an automated approval; 36% to 45% on a manual file
An automated approval allows a total debt-to-income ratio up to 50%; a manually underwritten file is held to 36%, or 45% when credit score and reserves meet the agencies’ matrix. The ratio divides total housing payment plus other monthly obligations by gross income.
| Purpose | Occupancy and program | Maximum LTV |
|---|---|---|
| Purchase | One-unit principal residence, first-time buyer (fixed rate) | 97% |
| Purchase | One-unit principal residence, standard | 95% |
| Purchase | HomeReady / Home Possible (income limits apply) | 97% |
| Purchase | Two- to four-unit principal residence | 95% |
| Purchase | Second home | 90% |
| Purchase | Investment property, one unit | 85% |
| Purchase | Investment property, two to four units | 75% |
| Refinance | Limited cash-out (rate-and-term), one-unit principal residence | 95% |
| Refinance | Cash-out, one-unit principal residence | 80% |
| Refinance | Cash-out, two to four units, second home or investment | 75% |
| Combined LTV | Maximum contribution |
|---|---|
| above 90 percent | 3% of the sales price |
| 75.01 to 90 percent | 6% of the sales price |
| 75 percent or less | 9% of the sales price |
| investment property (any) | 2% of the sales price |
| Event | Waiting period |
|---|---|
| Chapter 7 or 11 bankruptcy | four years from discharge or dismissal (two years with documented extenuating circumstances) |
| Chapter 13 bankruptcy | two years from discharge; four years from dismissal (two with extenuating circumstances) |
| Multiple bankruptcy filings | five years when more than one filing within the past seven years |
| Foreclosure | seven years (three with extenuating circumstances, then limited to a principal residence or second home at 90 percent LTV, purchase or limited cash-out) |
| Deed-in-lieu, short sale or mortgage charge-off | four years (two with extenuating circumstances) |
Mortgage insurance: Fannie Mae reports that private mortgage insurance typically ranged from 0.58%–1.86% of the loan amount a year; the premium on a specific loan is priced by the insurer on the score, the leverage, and the coverage, and is never quoted here. Gifts from relatives may fund the entire down payment on a one-unit principal residence. HomeReady and Home Possible lend to 97% with income at or below 80% of the area median; HomeOne lends to the same leverage with a first-time buyer and no income limit.
Current conventional snapshot · updated October 3, 2026 · principal residences occupied within sixty days, second homes, and one- to four-unit investment properties · conforming limits apply by county and are confirmed by a Lendmire loan officer · above the limit, see the jumbo program · no prepayment penalty · Lendmire is a broker, never the lender.
Informational only; not a commitment to lend, an approval, or a quote. Every figure on this page is a program parameter read from Lendmire’s guideline source, built on the agencies’ published guides, and may change without notice; eligibility, the loan amount, the insurance, and the ratios depend on the credit profile, the property, the occupancy, and underwriting. The mortgage insurance estimate is editable and not a premium quote. Lendmire is a mortgage broker licensed in sixteen states for consumer mortgages. NMLS #2371349.
What a conventional loan is — and how the file is qualified.
Four rules shape a San Marcos conventional file: leverage by occupancy and buyer, credit scoring that prices rather than gates, mortgage insurance that cancels, and ratios set by the underwriting path. Each is explained below with the reason behind it.
For the program overview, see Lendmire’s conventional loan program, or the statewide guide at Conventional Loans in California; for the mortgage insurance cancellation rules, see the CFPB.
Leverage by occupancy and buyer
Who the buyer is matters as much as what the home is. A first-time buyer, meaning no ownership interest in a home for three years, qualifies for the smallest down payment on a principal residence; a repeat buyer starts a little higher; and HomeReady, Home Possible, and HomeOne open the top leverage to buyers who meet their conditions.
Credit scores and automated underwriting
What the score does on a San Marcos conventional file is set the cost. A lower score raises the loan-level adjustments and the insurance premium; a higher score lowers both. Manual underwriting, used when the automated system cannot approve the file, carries its own minimum score and tighter ratios.
Mortgage insurance that cancels
The federal cancellation rules are the quiet advantage of a conventional loan. The borrower can ask to drop the insurance when the balance reaches the request threshold, the servicer must drop it at the automatic threshold, and it cannot outlast the midpoint of the term. On an FHA loan at full leverage the premium stays for the life of the loan.
Ratios, reserves, and the DU finding
Total debt-to-income is the ratio that counts: the full housing payment, insurance included, plus every monthly obligation, against gross income. Automated approvals reach the higher ceiling in the snapshot; manual files are held to the lower pair, with the higher of the two needing the matrix’s credit and reserve criteria.
A lender runs the same math on a San Marcos file with one difference: the insurer’s actual premium replaces the estimate. The estimate here starts at the low end of the published range and is editable, because the real figure depends on the score and the leverage.
Where San Marcos buyers borrow — and how a conforming loan fits.
The leverage limits are percentages; the market turns them into dollars. The Census figures below describe San Marcos’ ownership, home values, and household income, the backdrop every conforming loan here is sized against.
Citywide figures provide general market context, not an appraisal or an income calculation. Income sets the ratio, value sets the loan and the premium, and the down payment sets the leverage. The Census describes the first two for the market; the file supplies all three for the borrower.
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 Marcos neighborhoods, distinct conventional files.
One program, several San Marcos submarkets: the cards below describe the housing stock, the price range, and the conventional question that comes up most often in each.
Newer subdivisions on the bypass
The newer San Marcos subdivisions out by the bypass appraise cleanly, and the system often offers value acceptance; the question is whether the ratio carries the higher price with the insurance added. On a one-unit principal residence at San Marcos’ median value, the first-time buyer’s minimum down payment comes to about $26,000 and the standard minimum to about $43,400 — before closing costs, and before the mortgage insurance that comes with either; a second home, a multi-unit home, or a rental starts higher, as the leverage table shows.
Rural-edge and acreage properties
Homes on larger lots around San Marcos are conventional purchases when the use is residential; agricultural use puts the property outside the program, and the appraisal values the house and the land on comparable sales. About 36% of San Marcos’ households rent — roughly 11,374 renter households on the latest Census estimate.
Multi-unit conversions
San Marcos’ converted two- and three-unit homes are conventional purchases at multi-unit leverage with the buyer in one unit, other-unit rent counted per agency rules, and part of the down payment from the buyer’s own funds over the threshold. Median household income in San Marcos sits near $109,377 on the latest Census estimate.
High values and the conforming limit
A San Marcos home near the top of the conforming range is still a conventional file when the loan fits under the limit; above it the jumbo lanes take over with their own floors, and the county limit decides which side of the line a given San Marcos purchase falls on. San Marcos is home to about 95K people.
Manufactured homes
San Marcos manufactured homes finance on conventional loans under the agencies’ rules for the home and the site; a home on leased land or without a permanent foundation does not qualify, and the wholesale programs may add conditions. The median owner-occupied home value in San Marcos runs near $868,000 on the latest Census estimate.
In-town neighborhoods
San Marcos’ in-town blocks hold its oldest houses, and a conventional appraisal reads them for value first; condition notes appear on failing roofs and systems, and sellers usually address them before closing. Roughly 19,976 San Marcos households own their homes on the latest Census estimate — 64% of all households, the pool a conventional purchase joins.
What the program accepts is the same everywhere in San Marcos: houses, warrantable condominiums, planned developments, manufactured homes that meet the agencies’ rules, two- to four-unit homes, second homes, and investment property, each at its own leverage. What it declines is the non-warrantable project and the loan above the conforming limit, which belong to other programs.
Four ways San Marcos buyers put a conforming loan to work.
A good use of a conventional loan is one its shape fits: a decent score, a down payment of any size from the minimum up, an occupancy the agencies allow, and a loan inside the conforming limit. Four common San Marcos uses follow.
Buy with twenty percent down and no insurance
A San Marcos buyer with twenty percent down gets the conventional loan’s cleanest form: no mortgage insurance, loan-level adjustments at the best tier the score allows, and a payment of principal, interest, and escrows alone. Second homes and investment property are priced from the same structure.
Refinance or take cash out
The conventional refinance fits a San Marcos owner who wants a different term, a different structure, or cash from equity; each has its own leverage, and a cash-out refinance generally needs a first mortgage at least twelve months old and six months on title. A home equity line that leaves the first mortgage alone is the comparison worth running.
Buy a first home at the first-time-buyer minimum
A San Marcos buyer who has not owned a home in three years qualifies for the program’s smallest down payment on a one-unit principal residence with a fixed rate; the down payment can be a gift from a relative, the seller can pay closing costs within the cap, and the insurance cancels as equity grows.
Buy an investment property
The rental purchase is inside the conventional program at a lower leverage than a principal residence: a San Marcos buyer uses the agencies’ rules for counting rental income, shows reserves for every property financed, and accepts loan-level adjustments that reflect the occupancy.
Estimate the payment on a San Marcos price before requesting a quote.
Before you ask for a quote, size the payment yourself: the San Marcos price, the down payment, the term, the benchmark rate, the insurance estimate, and the escrows go in, and the thresholds and the ratio ceiling come from the same guideline source as the block above. The result is an estimate, the rate is a published market average, and the insurance figure is an editable estimate inside Fannie Mae’s published range.
San Marcos conventional payment estimate
The starting figures are a San Marcos price at the first-time buyer’s minimum down payment. Replace them with yours.
Editable benchmark: 7.28% as of October 1, 2026 · Freddie Mac 30-year average via FRED®. A conventional market reference, not a conventional loan quote.
Estimate seeded at the low end of Fannie Mae’s published range (0.58%–1.86% a year); the insurer prices the actual premium on the score and the leverage. Applies only above 80% loan-to-value.
Illustrative starting assumptions: a $750,000 price (the highest price the example uses, which sits below San Marcos’ median owner-occupied home value), the first-time buyer’s minimum down payment, a thirty-year term at the current Freddie Mac benchmark, mortgage insurance at the low end of Fannie Mae’s published range, 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 conventional benchmark, a market reference and not a conventional loan quote; your rate is set by the lender at lock. The mortgage insurance figure is an editable estimate seeded from Fannie Mae’s published typical range, not a premium quote; the insurer prices the actual premium, and the cancellation month assumes scheduled payments with no extra principal and no change in value. Taxes, insurance and dues are editable estimates; closing costs are not included. Conforming loan limits apply by county. Licensed in sixteen states for consumer mortgages.
Same buyer, three very different closings.
Choosing among conventional, FHA, and VA in San Marcos is really choosing an insurance structure and a credit standard at the same time. Each is laid out below with the buyer it fits.
Conventional, FHA, or VA.
The program’s strengths are the cancellable insurance, the breadth of occupancies, and a cost structure that rewards a strong score; its weakness is the same structure applied to a weak one. A San Marcos buyer with a strong score usually pays less each month here than on FHA.
FHA asks for a small minimum investment that a gift can cover, accepts a forgiving decision score, and charges an upfront premium plus an annual premium that lasts for the term at full leverage. For a San Marcos buyer with a modest score it usually wins; for a strong score the conventional premium is smaller and temporary. See Lendmire’s FHA loan program.
VA beats conventional on the principal residence for nearly every eligible borrower; conventional beats VA on everything VA does not touch: second homes, rentals, and buyers without the certificate. The two often sit side by side in one San Marcos household. See Lendmire’s VA loan program.
Conventional for the solid score, the move-up buyer, the second home, and the rental; FHA for the modest score and the small investment; VA for the eligible borrower buying a principal residence. The San Marcos file is priced on all three before one is recommended. Above the conforming limit, see the jumbo loan program.
What to prepare for a San Marcos scenario review.
The paperwork is the standard mortgage set, with the automated finding deciding how much of it the file actually needs; here is what a San Marcos 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 automated underwriting finding, and the income picture. Nothing here is legal or tax advice.
Local details that can change the loan.
The percentages tell only part of the story. What a San Marcos conventional loan actually becomes depends on the score, the appraisal, the project review, and the automated finding, and these are the details that move it.
Use these checks to keep the San Marcos file clean and fundable.
Three things to settle before a San Marcos review: how the mortgage insurance will be structured and when it ends, where the decision score lands and what it prices, and whether the property has any agency question attached.
- Plan the insurance: it cancels on request at the request threshold and automatically at the termination threshold.
- Confirm the score: a self-pulled score can differ from the decision score.
- Structure the contract: second homes and multi-unit homes need the buyer’s own funds above the threshold.
Mortgage insurance: how much, and until when
The premium on a San Marcos loan can be paid monthly, paid by the lender in exchange for a different price, paid as a single premium at closing, or split. The monthly structure cancels under the federal rules, and the others are set by the lender. The calculator shows the monthly structure and the month the thresholds arrive on scheduled payments.
The score sets the cost
The decision score comes from the lender’s report, and with multiple borrowers the automated system uses the average of the median scores. On a San Marcos conventional file the score rarely ends eligibility, but it sets the loan-level adjustments and insurance premium, so a few points can change monthly cost.
Seller contributions and the down payment
Two rules shape the San Marcos contract: the contribution cap, which falls as the leverage rises, and the source rules for the down payment, which allow a full gift on a one-unit principal residence and require a share of the buyer’s own funds on second homes and multi-unit homes above the threshold.
Occupancy and its leverage
Each occupancy has its own leverage limit and loan-level adjustments: a principal residence occupied within sixty days of closing reaches the top of the table, a second home is lower, an investment property lower still. A San Marcos buyer who states one occupancy and uses another has misrepresented the loan.
Warrantable or not
Project review is the one property question that can take a San Marcos condominium out of the program entirely. The lender collects the association’s questionnaire, budget, and insurance before the appraisal, and a buyer under contract should ask early how the project reads.
From a San Marcos pre-approval to keys in hand.
A conventional purchase runs in a fixed order: pre-approval through the automated system on the score, the ratio, and the reserves; contract and appraisal or value acceptance; underwriting that verifies what the finding assumed; and closing with the insurance structure set. Here is that order for a San Marcos buyer.
Pre-approval
The first conversation settles the shape: whether the buyer counts as a first-time buyer, what leverage the occupancy allows, how much insurance the down payment carries, and whether conventional is the right program next to FHA and VA for the San Marcos purchase.
Contract and appraisal
The San Marcos contract sets the price and the contributions; the appraisal, or the system’s value acceptance, sets the value. Both feed the loan amount, and the lender confirms the project review and the conforming limit before underwriting begins.
Underwriting
The underwriter verifies what the automated finding assumed: income, assets and reserves, credit and any seasoning, occupancy, and the property. A manual file follows the lower ratio pair instead. Conditions are issued, documented, and cleared before final approval.
Closing
Closing is where the structure becomes a payment: principal and interest, the insurance while the loan is above the threshold, taxes and insurance. The San Marcos buyer takes the keys, and the lender delivers the loan to the agency it was written for.
A brokerage that prices the whole market.
Lendmire is a mortgage brokerage licensed for consumer lending in sixteen states, and on a conventional loan that buys three things: the file priced across several wholesale programs rather than one, the insurance structure and its exit explained before an offer is written, and the terms in writing from a licensed loan officer.
Several programs, one set of numbers
The comparison printed on this page is run for real on every San Marcos file: conventional with the insurer’s actual premium beside FHA with its premiums beside VA where eligibility exists, and the written terms follow from it.
The insurance explained before the offer
No San Marcos buyer should learn at the closing table what the insurance costs or how long it lasts. The loan officer walks through the premium for the leverage chosen, the month the thresholds arrive on scheduled payments, and the alternative of a larger down payment.
Licensed, consumer-purpose, in writing
What this page shows are the agencies’ parameters and the wholesale overlays; what a specific San Marcos loan gets is a written set of terms from a licensed loan officer after the review. Lendmire is a broker, never the lender.
Trusted by buyers & families alike.
San Marcos conventional loan FAQs
Plain answers to the questions San Marcos buyers ask most about conventional loans, in the order they usually ask them.
What is a conventional loan, and who is it for?
The general-purpose mortgage: conforming to the agencies’ guides, priced on the credit score, insured privately only while the leverage is above the threshold. It is the program most San Marcos buyers compare first and, of the three compared here, the one that reaches a second home or an investment property.
How much do I need to put down on a conventional loan in San Marcos?
The first-time buyer’s minimum down payment is in the snapshot on this page, for a one-unit principal residence with a fixed rate. A first-time buyer is anyone without an ownership interest in a home during the prior three years. Everyone else pays the standard minimum. Second homes, multi-unit homes, and investment property need more, as the leverage table shows. A relative’s gift may fund the whole down payment on a one-unit principal residence.
What credit score do I need for a conventional loan?
The snapshot shows the floor. More useful than the number is what sits around it: a seasoned derogatory event is inside the rules after its waiting period, a thin file may need manual underwriting with tighter ratios, and the score drives the insurance premium on a San Marcos loan.
How does private mortgage insurance work, and when does it end?
It is temporary insurance for the lender, paid by the borrower while the loan sits above the threshold. On a San Marcos loan with scheduled payments the calculator shows the month the balance reaches the request point and the automatic one; extra principal or a rise in value, recognized by the servicer, can bring the request point sooner.
What is the conforming loan limit in San Marcos?
Ask a loan officer for the county’s current limit; it changes yearly and by unit count. Above it, a San Marcos purchase is still possible with a larger down payment on a conforming loan or on a jumbo loan.
Can I use a conventional loan to buy a condominium?
Condominiums are eligible in projects that pass the agencies’ review. Resort projects with rental operations, projects in litigation, and buildings with heavy commercial space are the ones that fail; many established San Marcos projects pass.
What are HomeReady, Home Possible, and HomeOne?
Agency programs that open the top conventional leverage to buyers who meet their conditions: HomeReady from Fannie Mae and Home Possible from Freddie Mac for borrowers with income at or below the area-median threshold in the snapshot, with reduced insurance coverage and a homeownership course; HomeOne from Freddie Mac for first-time buyers with no income limit. Each is a conventional loan with its own rules on top.
Can I get a conventional loan after a bankruptcy or foreclosure?
Yes, once the waiting period in the snapshot table has run: each bankruptcy chapter, a foreclosure, a deed-in-lieu, and a short sale carry their own period, measured from discharge, dismissal, or the completion of the event, and several are shortened by documented extenuating circumstances. The periods are longer than FHA’s or VA’s.
Can the down payment be a gift?
The whole down payment can be a family gift on a one-unit principal residence, with the letter and the transfer documented. A San Marcos first-time buyer with family help and a solid score is a routine conventional file.
What happens after my San Marcos offer is accepted?
Appraisal first, then underwriting, then conditions, then closing. The appraisal or the value acceptance sets the value; the underwriter verifies what the finding assumed; the closing funds the loan at the leverage chosen and starts a payment with the insurance line if one applies.
A San Marcos conventional loan sized to the price, the score, and the leverage.
Begin with a scenario review: the price, the down payment, the score, the income, and the occupancy. A licensed Lendmire loan officer prices the file across the wholesale programs, runs it beside FHA and VA, and puts the terms in writing.
This guide covers San Marcos — for the statewide guidelines, markets, and scenarios, see Conventional Loans in California, part of Lendmire’s conventional loan program.
Nearby markets in California: Escondido · Vista · Carlsbad · Encinitas · Oceanside · Santee · San Diego · Temecula
Related programs: FHA Loans · Jumbo Loans · Refinance Loans