A buyer purchasing a primary residence with less than 10% down on a conventional loan can receive a seller contribution of only 3% of the price. On a Folsom three-bedroom at September's average close price, that comes to about $20,000. A builder a few miles south of Highway 50 can arrange rate coverage with its lender before the buyer ever signs, and Fannie Mae does not count that arrangement against the same 3% limit.
With rates where they are, that gap matters. The 30-year fixed rate averaged 7.32% as of October 22, 2026, according to Freddie Mac's Primary Mortgage Market Survey. A year earlier it was 6.19%. At those rates, buyers judge a home by its payment, and the rules for who can lower a payment, and by how much, differ by seller.
The Cap Every Resale Seller Runs Into
Fannie Mae calls money a seller puts toward a buyer's financing an interested party contribution. The Fannie Mae Selling Guide caps these contributions based on how much the buyer puts down. It measures the cap against the lower of the sale price or the appraised value, never the loan amount.
For a principal residence or second home, here is how the caps play out on a Folsom-area three-bedroom at its September 2026 average close price of $673,862:
| Buyer's down payment | Loan-to-value | Max seller contribution | On a $673,862 home |
|---|---|---|---|
| Under 10% | Over 90% | 3% | About $20,216 |
| 10% to just under 25% | 75.01% to 90% | 6% | About $40,432 |
| 25% or more | 75% or less | 9% | About $60,648 |
Freddie Mac's guide sets the same 3%, 6% and 9% bands, and both agencies hold investment properties to 2% at every loan-to-value. Freddie Mac names the builder, the developer, the property seller and both real estate agents as interested parties. FHA loans have one ceiling. HUD's FHA guidance allows interested parties to contribute up to 6% of the sales price, and temporary and permanent buydowns count toward it.
Two more conditions tighten the limit. Under Fannie Mae's rules, a financing concession also cannot exceed the buyer's actual closing costs. Any amount above the cap or above those costs becomes a sales concession, and the lender deducts it from the price before recalculating the loan-to-value ratio. When a resale seller pays for a rate buydown, Fannie Mae counts the cost of that subsidy toward the cap.
The Exception That Fits a Builder's Business
The same Fannie Mae section contains a note that matters a great deal in Folsom Ranch. A builder can sign a standby commitment, also called a forward commitment, with a lender for blanket interest rate coverage. If the builder signs it before the buyer signs a sales contract, it "is not subject to Fannie Mae's maximum financing concessions," because it is not tied to one specific loan. Freddie Mac's guide also excludes a builder's qualifying pre-contract forward commitment from its contribution requirements.
A forward commitment is wholesale financing. A builder with dozens of quick move-in homes can buy rate coverage in bulk ahead of time. A homeowner on a Folsom cul-de-sac sells one house, after an offer arrives, and every dollar of a buydown counts against that buyer's band.
Not every builder offer works this way. Toll Brothers' current Folsom Ranch rate offer states that its incentives are "subject to maximum interested party contribution limits." The structural difference is still real. One kind of seller has a tool the rules treat as outside the cap, and the other does not.
What the Builder Offers Look Like This Fall
Two Folsom Ranch builders ran very different payment offers in October.
Toll Brothers advertised a 5.49% 30-year fixed rate, 5.76% APR, on select quick move-in homes at Preserve at Folsom Ranch, through Toll Brothers Mortgage Company. The offer applies to agreements signed on or after October 8, 2026, for homes that close by December 28, 2026. It requires at least 10% down and excludes FHA and VA loans. The offer's own example assumes a $500,000 loan and a payment factor of $5.67 per $1,000, which works out to about $2,835 a month in principal and interest. By our arithmetic, the same $500,000 loan at Freddie Mac's 7.32% average would cost roughly $3,435 a month, or about $600 more. Quick move-in homes at Preserve were listed from $920,000 to $1.36 million, at 2,750 to 3,750 square feet.
Tri Pointe's October sales event at Sendero at Folsom Ranch used an FHA 2/1 temporary buydown and paired it with up to $30,000 in closing credit at that community. Contracts had to be signed before October 31, 2026, with closing by December 31. The offer terms state that the note rate is fixed at 5.49% for the full 30 years, with $14,869 in points and fees paid by the builder in its $570,000 example. The buydown lowers the payment for the first two years. Tri Pointe's example shows how the payment moves:
| Period | Effective payment rate | Monthly principal and interest |
|---|---|---|
| Year 1 | 3.49% after buydown | $2,510 |
| Year 2 | 4.49% after buydown | $2,829 |
| Years 3 to 30 | 5.49% | $3,417 |
| Builder's stated market rate | 7.625% | $3,961 |
Two details matter here. The payment the buyer lives with for 28 years is $907 higher than the year-one figure in the headline. The builder's "market rate" comparison of 7.625% also sits about three-tenths of a point above Freddie Mac's October 22 average, so the comparison makes the savings look a little larger than a buyer would measure against the survey. The survey assumes 20% down and excellent credit, so an individual buyer's quote can differ.
At Sendero, move-in-ready homes were listed at $499,000 for a 1,566-square-foot three-bedroom and at $597,058 and $605,374 for 1,636-square-foot four-bedrooms.
Where Folsom's September Closings Landed
Resale homes north of 50 are not losing badly. The Sacramento Association of REALTORS® September 2026 report for Folsom & Vicinity counted 74 closed residential sales. The average close price was $803,047, homes averaged 34 days on market, and they sold at 99.29% of list price. Those figures include new construction along with resales.
By bedroom count:
- Three-bedroom: 29 sales, $673,862 average close, 27 days, 98.62% of list
- Four-bedroom: 25 sales, $849,500 average close, 33 days, 100.47% of list
- Five or more bedrooms: 12 sales, $1,198,000 average close, 45 days, 98.54% of list
Four-bedroom homes closing above list price is the strongest number in the report. It is also the segment where Sendero listed homes near $600,000, at 1,636 square feet. The two products differ. Resale homes are mostly older, often on larger lots, in established neighborhoods. The new homes are smaller, come with builder financing, and are in a master plan still under construction. Buyers comparing them are choosing between a price and lot and a payment, and they do not reach the same answer.
The wider county shows the market softening without tipping. Sacramento County stayed a seller's market in September 2026, with 2.7 months of inventory, up 17.4% from a year earlier. Active listings rose 8.8% year over year while sold listings fell 8.8%, and homes sold at 98% of original list price.
Why the Pressure South of 50 Keeps Building
Builders are under more strain than resale sellers. The NAHB/Wells Fargo Housing Market Index fell to 29 in October 2026, its lowest reading since June 2012. That month 43% of builders cut prices, the highest share since 2020, with an average cut of 6%, and 65% used sales incentives.
Closer to home, Folsom Times reported in August that North State Building Industry Association members sold 403 new homes regionally in July, 16% fewer than in July 2025. In the same article, BIA President and CEO Tim Murphy said, "Through mortgage rate buy-downs, downpayment assistance and other incentives, new homes today are often more affordable than you'd think."
More homes are on the way. The City of Folsom approved Toll Brothers' Alder Creek, 1,424 homes in 18 villages on about 464 acres south of Highway 50, on June 23, 2026, by a 4-1 Council vote, as Folsom Times reported. Folsom Times reported in July that LiUNA Local 185 had filed suit over that approval. Taylor Morrison's proposed Sierra Oaks, at 804 lots, is on the city's development projects list with a hearing date still to be set. In April, Elliott Homes' Folsom Heights received design-review approval for 273 homes in Villages 4 through 8, per Folsom Times.
Each new phase brings more homes from sellers who can plan financing in bulk. For a resale seller north of 50, the nearest competition next spring is likely to be a payment offer from a builder, not another homeowner's list price.
How the Rules Treat the Two Main Tools
A price reduction and a credit look alike on a net sheet, but the lending rules treat them differently. A lower price is not a contribution, so no 3%, 6% or 9% band applies to it. A seller credit or seller-paid buydown counts against the buyer's band, cannot exceed the buyer's closing costs, and anything above either limit comes off the price anyway. For a buyer putting less than 10% down on a conventional loan, the space for a seller-funded buydown is small. For a buyer putting 25% down, it is three times as large. Before a seller decides how to structure a concession, it helps to know which kind of buyer is on the other side.
Quick Answers
Does a 2/1 buydown discount last for the life of the loan? No. In Tri Pointe's October example, the note rate is fixed at 5.49% for 30 years. The buydown lowers the payment by the equivalent of 2 points in year one and 1 point in year two, and the full payment applies from year three.
Can a resale seller offer a rate buydown? Yes. Under Fannie Mae's rules, the cost counts toward the buyer's interested party contribution limit.
Do the Folsom & Vicinity figures cover only resale homes? No. The September 2026 report covers residential sales and does not separate existing homes from new construction.
This post is general information about published lending guidelines, not legal, tax or financial advice. Your loan program, down payment and lender will decide what applies to you, so confirm the details with your loan officer or another qualified professional.
Whether you're weighing a resale home in established Folsom against a builder's payment offer, or deciding how to structure a concession on a home you're selling, Trent Andra and the Andi & Trent team can compare the real monthly cost of each option with you before you commit. Get your free home valuation and consultation.
