How to Use This
This is the prose layer. The evidence layer is Builder Rate Buydowns — every claim there carries a confidence tag and a source. Web version: https://concepts.rycolston.com/builder-rate-buydowns/
Rule before you record anything: if a sentence here matters, open Builder Rate Buydowns and check its tag. V and P are safe. S needs a hedge. ? does not get said out loud.
Nine chapters. Chapter 1 is the answer. Chapters 2 through 5 are how it works and what it costs. Chapter 6 is the catch. Chapter 7 is what a resale agent does about it. Chapter 8 is the Texas roster: who is advertising what, this month. Chapter 9 is everything else on the builder's shelf besides the rate.
Table of Contents
- The Answer — yes, and the real number is bigger than the rumor
- They Buy the Rate, Not the Loan — what a forward commitment is
- The Coupon and the Contract — three kinds of buydown people mix up
- The Builders' Own Numbers — D.R. Horton, Lennar, Pulte, in their own filings
- The Loophole — why the cap does not apply
- What the Buyer Is Not Told — the sticker, the lender, the resale
- The Same Move at Retail — what a listing agent can offer instead
- The Texas Roster — eighty-five builder rows and the number on their flyer
- The Rest of the Shelf — closing costs, flex cash, fridges, agent bonuses
1. The Answer
Evidence: §0, §4.1
Someone told you builders are buying cheap loans by the millions to hand out as bait. Here is the true version.
They do not buy loans. They buy a promise. A lender promises to fund a pile of future mortgages at a low rate. The builder pays for that promise up front. Then each buyer who walks in gets a loan out of the pile at the cheap rate.
And "millions" undersells it. D.R. Horton, the biggest builder in the country, told its shareholders it was holding $677 million of mortgage bonds that were not yet tied to any buyer. Those bonds exist for one reason. The company says so in its own words: "a program to offer below market interest rate financing to our homebuyers."
So the rumor is right about the what and wrong about the how. Keep reading for the how.
2. They Buy the Rate, Not the Loan
Evidence: §1, §2
The tool has a boring name: a forward commitment. Fannie Mae calls it a standby commitment. Same thing.
Here is the shape of it. The builder's own mortgage company goes to an investor. It says: hold ten million dollars of loan money for us, at five percent, for the next four months. The investor says: that costs you points. A point is one percent. The builder pays. Now the builder has a pool of cheap money with a clock on it.
The important part is when this happens. Fannie Mae's rule says the deal is made "prior to signing a sales contract with a borrower." No buyer exists yet. The builder is betting that buyers will show up before the clock runs out.
When a buyer does show up, the builder's lender pulls that buyer's loan out of the pool. The buyer sees one number on the flyer. In mid-2026 that number at D.R. Horton was about 4.9%, while the open market was about 6.5%.
How big is a pool? One national lender sells them in blocks of $3 million to $20 million, good for up to 150 days. A Texas lender's own example: three spec homes at $450,000 make a $1.35 million block. Buying a 5.5% rate for that block costs four points, which is $54,000, paid up front.
And the pool is a bet. D.R. Horton buys its pools "for the next few weeks of deliveries." When rates dropped fast in late 2023, the pools it had already paid for were suddenly worth less than the open market. The company took a $65 million charge in one quarter. Its CEO said the analyst who described it that way had "described it exactly."
Say it this way: They buy the rate before you exist. Then they sell you the house that comes with it.
3. The Coupon and the Contract
Evidence: §3
Three different things get called "a buydown." They are not the same.
The temporary buydown is the 2-1 or 3-2-1 you have heard of. The rate starts low and steps up one point a year until it reaches the real rate. Fannie Mae allows at most three years and at most one point per step. The buyer has to qualify at the full rate. It costs the seller about 2% of the price for a 2-1, about 4% for a 3-2-1. It is a coupon.
The permanent buydown is paying discount points at closing so one buyer's rate is lower for all thirty years. It costs up to about 6% of the price for a full-term cut. It is a bigger coupon.
The forward commitment is the wholesale contract from chapter 2. It is not tied to one buyer. It is bought before any buyer exists. And, as chapter 5 explains, it is exempt from the rules that limit the other two.
Builders talk about the coupon. They run on the contract.
4. The Builders' Own Numbers
Evidence: §4
You do not have to trust a reporter for this. The builders file it.
D.R. Horton. In late 2023, when this started, the company said about 60% of its closings used some form of rate buydown and it stayed "about a point to a point and a quarter below market." By mid-2026 its buyers were getting 4.9% against a 6.5% market. Its annual report says margins fell "as we increased sales incentives, such as buydowns of mortgage rates."
Lennar. In its Q2 2026 press release the company said its average sales price was $371,000, "reflecting approximately 12.9% in incentives, along with base price adjustments." On the call an analyst asked if that number includes price cuts or is buydowns only. The CFO said: "It does." A year earlier the figure was 13.3%, which one trade outlet worked out to nearly $60,000 on a $450,000 home. Lennar itself says normal is 4% to 6%.
Lennar in Texas. This is the one Texas-specific number from a builder's own filing. In the first half of 2024, Lennar's incentives ran 10.1% of price company-wide. In Texas they ran 16.9%, about $51,600 a house. Texas was the most expensive region Lennar had. That figure comes from a financial blog reading the 10-Q, so say "reported from Lennar's filing."
PulteGroup. Incentives were 10.9% of gross sales price in the first quarter of 2026. Two years earlier they were about 6%.
Across the biggest builders. AEI's loan-level analysis found that as of June 2025, about 64% of new homes sold by the largest builders carried a permanent buydown. The average cut was 1.3 points of rate. The average cost was about 5% of the loan.
The month-to-month picture. NAHB's August 2026 survey: 63% of builders were using sales incentives, 35% had cut prices, and the average cut was 6%. August was the sixteenth straight month with at least 30% of builders cutting prices. Realtor.com found that in late 2025, for the first time, new homes were getting price cuts more often than resale homes: nearly one in five new listings, against 18.3% of existing. In Texas it was 19.0% against 17.5%.
One warning before you quote any of these. "Incentives" in a builder's filing is a blend. It includes price cuts, closing-cost credits and upgrades, not only rate buydowns. Lennar says so in the same sentence. Only D.R. Horton breaks out the buydown share on its own.
5. The Loophole
Evidence: §5
Here is why the forward commitment beats the coupon, and it is a rule, not a trick.
Fannie Mae limits how much a seller can chip in toward a buyer's costs. The cap is 3% if the buyer puts down less than 10%. It is 6% with 10% to 25% down. It is 9% with 25% or more down. A builder-paid buydown counts against that cap. On a low-down-payment loan, 3% does not cover a full-term buydown. John Burns Research says it "eats up most (or all) of the maximum seller contribution allowed unless a forward commitment is used."
Then comes the exemption, in Fannie Mae's own words: forward commitments "are not subject to Fannie Mae's maximum financing concessions because they are not attributable to the specific loan transaction."
Read that twice. The cheap rate is not a concession on your loan, because the builder bought it before you existed. So it does not count.
AEI found that over 40% of large-builder sales carry concessions plus buydown cost above 6%. If the buydown counted, many of those loans would not be allowed.
Say it this way: The cap is three to nine percent. The forward commitment is exempt. That exemption is the whole business model.
6. What the Buyer Is Not Told
Evidence: §6, §7
Three things.
The sticker carries the cost. Somebody pays for the points. A Texas brokerage says builders "frequently inflate base price by 2% to 4% to offset buydown costs." That is one broker's read, not a study, so hedge it. But it fits what AEI measured: big-builder new-home prices rose about 6% more than resale homes and small-builder homes over the same stretch. AEI's read is that the buydown let big builders avoid a 10% to 12% price cut. The builders' own trade press disagrees and says the buydown is access, not inflation. Give both sides.
The lender is not your choice. A builder cannot legally force you to use its mortgage company. HUD tried to tighten that rule in 2008 and withdrew the attempt in 2009. But a builder can make the incentive vanish if you go elsewhere. That is legal and it is standard.
The resale is an open question. The next buyer of that house cannot get the builder's rate. AEI predicts those prices "will likely have to adjust." That is a forecast. Nobody has measured it yet. Do not say it as fact.
7. The Same Move at Retail
Evidence: §9
A resale seller cannot buy a forward commitment. A resale seller can buy a 2-1.
The math on a $350,000 loan at a 6.5% note rate: the full payment is about $2,212 a month. A 2-1 makes year one about $1,773 and year two about $1,987. The seller's cost is the difference, escrowed at closing: about $7,966. The buyer's first-year relief is about $439 a month.
Compare that to a price cut. An $8,000 price cut lowers the payment by about $50 a month. The buydown lowers it by $439. Same seller dollars, nine times the monthly relief in year one. And the sale price stays honest, which is exactly what the builder version does not do.
Two questions to hand a buyer who is looking at a builder's flyer:
- What is the gross price before the incentive?
- What does one outside lender quote on the same loan, with no incentive?
Say it this way: A builder's 4.99% is real. So is the extra two to four percent on the sticker, and so is the lender you did not get to pick. A seller-paid 2-1 gives the same first-year relief for about eight thousand dollars and leaves the price honest.
8. The Texas Roster
Evidence: §10
Ry asked for as many Texas builders as we could get. Three reading agents pulled the promo pages of about eighty-five builders across Dallas-Fort Worth, Houston, Austin and San Antonio on September 16, 2026. The full table, with a link for every row, is in the evidence file. Here is what it adds up to.
Who is big. By permits in August 2025, Lennar and D.R. Horton are one and two in both Dallas and Houston. San Antonio is led by KB Home, then D.R. Horton and Lennar. David Weekley, Perry, Taylor Morrison and Chesmar fill out the top fives.
What the flyer says. The number on the flyer is almost always the first-year rate of a temporary buydown. Toll Brothers' 3.99%, Sandlin's 3.99%, Coventry's 2.99%, Meritage's 2.99%: those are year one of a 2-1 or 3-2-1, and the rate climbs after that. The offers that are actually a thirty-year rate cluster at 4.99%: David Weekley, Perry, Tri Pointe, First Texas, History Maker. One or two go to 4.49%.
The string is always the lender. Nearly every row says "must finance with" the builder's mortgage company. K. Hovnanian puts a price on it: use another lender and the incentive drops by five percent of the home price.
Two builders say the quiet part. Coventry Homes, in all three metros, and DSLD in Houston, call their offer a "forward commitment" on their own page. Everyone else says "buydown."
Half the pages are stale. About a third of the offers carry contract windows that have already closed. Sitterle and CastleRock pages still show December 2025 deadlines. Beazer's page is from 2024. The sales office knows the live number; the website often does not.
Say it this way: In Texas right now the flyer says 3.99. Ask which year. Ask which lender. Ask what the price was before the flyer.
9. The Rest of the Shelf
Evidence: §11
The rate is the headline. It is not the whole shelf. Read the Texas promo pages and the same ten tools keep showing up.
Closing-cost credits. A flat dollar amount, usually capped at a percent of the price, and almost always tied to the builder's lender. Ten thousand is the common number. American Legend is at twenty.
Flex cash. One pot of money the buyer can aim at a buydown, closing costs, upgrades or the price. First Texas calls it $30K Flex Cash. Brightland goes to $40,000. Trophy Signature calls its version "$80,000 Your Way."
Design-center credits. Free or half-price options at the builder's studio. Highland in Houston offered half off up to $150,000 of options.
The move-in package. A fridge. Blinds. Sometimes a washer and dryer.
Price cuts on finished homes. History Maker advertised up to $55,000 off. Realtor.com found nearly one in five new listings had a price cut in late 2025, more than resale.
Extended rate locks. Taylor Morrison pays for a nine-month lock so the rate holds while the house is built.
ARM promos. A five-year adjustable at a low start rate, paid down by the builder. Coventry in San Antonio and Lennar in Austin.
Agent bonuses. Cash to the buyer's agent on top of commission. Century pays $2,000 to $5,000.
The two-lender split. D.R. Horton in Houston offers $15,000 in upgrades with any lender or $10,000 in closing costs with its own. K. Hovnanian cuts the incentive by five percent of the price if you bring your own lender.
Why the rate first and the price last? Because the rate moves the monthly payment the most, and the price moves the comps the most. Cut one house by $20,000 and every unsold house next door just lost $20,000 too. Give a credit and the recorded price holds. Lennar's own filings bundle all of it into one "incentives" number, and its CFO confirmed on the call that price cuts are inside that number.
Say it this way: Builders have a whole shelf. They reach for the rate first because it moves the payment. They reach for the price last because it moves the comps.
What is still unverified
Check Builder Rate Buydowns §"Not covered" before airing any of these: a DFW-only spend total, the D.R. Horton late-2023 charge on unused pools, Taylor Morrison's numbers, and whether new-build resales actually sell for less.