Speak Straight Mortgage
Buydowns

A 3-2-1 Buydown in Colorado: The Full Three-Year Math

The 3-2-1 buydown on a real file: $23,814 in escrow takes the first-year payment from $3,432 to $2,457.

Matt Wentz, loan officer at Speak Straight MortgageMatt WentzAugust 17, 2026
A 3-2-1 Buydown in Colorado: The Full Three-Year Math
The short version

A 3-2-1 buydown lowers your rate by 3% in year 1, 2% in year 2, 1% in year 3, then leaves you at the note rate for the rest of the loan. The seller funds it into an escrow account at closing and the servicer draws from it monthly.

On a $550,000 home with 5% down at 6.875%, that is $23,814 in escrow, or 4.3% of the purchase price, and it takes your first-year principal and interest from $3,432 to $2,457. You still qualify at the note rate, and unused escrow goes to your loan if you refinance early.

Matt Wentz, loan officer
Explained on video, not in theory
Matt Wentz, Speak Straight Mortgage
NMLS 1852397 · Company NMLS 2426226
We price buydowns by hand against a price cut and show you both, on your actual file.
A seller-paid 3-2-1 buydown, walked through end to end. Walked through by Matt Wentz on a real file.
The escrow account, year by year
A 3-2-1 buydown on a $550,000 home
$27,500 down, a $522,500 loan at 6.875%. Principal and interest at the note rate is $3,432 a month, and that is the payment you qualify on.
Period Effective rate What you pay Escrow covers Cost that year
Year 1 3.875% $2,457 $975 $11,706
Year 2 4.875% $2,765 $667 $8,008
Year 3 5.875% $3,091 $342 $4,100
Total the seller funds at closing $23,814

Principal and interest only, illustrative at 6.875% on a 30-year fixed. Taxes, insurance and any HOA sit on top of every figure here and do not change. Your rate is set the day you lock.

Does it fit inside the concession cap?

At $23,814 this buydown is 4.3% of the purchase price. Conventional caps seller contributions at 3% under 10% down, 6% at 10% down or more, and 9% at 25% down or more. FHA and USDA allow 6%, and VA does not work off a single number, so the commonly quoted 4% is not the ceiling people assume it is. With 5% down the conventional allowance is 3%, so this structure does not fit. Move to 10% down and the cap becomes 6% and it fits with room to spare, which is often the cheapest way to rescue a deal built around this buydown. FHA allows 6% at any down payment.

Closing costs compete for the same allowance. A seller who agrees to $23,814 for a buydown has that much less room for title, prepaids and escrows, so the order of operations matters when the contract gets written.

The four rules that decide whether this works

You qualify at the note rate, not the bought-down rate. On a temporary buydown the lender underwrites the payment at the full rate. The lower payment is real money in your pocket, but it does not stretch your approval by a dollar, and anyone telling you otherwise is describing a different product.

The money sits in an escrow account, and it is yours. The seller funds it at closing and the servicer draws from it each month to make up the difference. If you refinance or sell before the buydown runs out, the unused balance is applied to your loan, so it is not forfeited.

Concessions are capped, and the cap is what limits the buydown. On a conventional primary residence the seller can contribute 3% if you are putting less than 10% down, 6% once you are at 10% down or more, and 9% at 25% down or more (those are the 90%, 75.01-to-90%, and 75%-or-below loan-to-value tiers). FHA allows 6%. VA is the one that gets quoted wrong. You will hear a flat 4%, but only some seller-paid items count toward it and others do not, so the total a seller can contribute on a VA loan is often higher than 4%. It is worth having someone work it out on your file rather than assuming the 4% is the ceiling. USDA allows 6%. A 3-2-1 on a low down payment often will not fit inside the cap, which is the single most common reason one gets restructured.

It is a negotiation, not a product you order. The seller is paying for it, so it competes with a price reduction and with closing-cost help. Which of the three is worth more to you depends on how long you keep the loan, and that is arithmetic we will run rather than guess.

Price a 3-2-1 on my file →

Keep going

Matt Wentz
Who wrote this
Matt Wentz · NMLS 1852397

Broker and owner of Speak Straight Mortgage (Company NMLS 2426226), a CHFA Participating Lender licensed in Colorado. The buydown examples here and in the videos come from files he structured and closed himself, not from a marketing department. If a number on this page is wrong, it is worth telling us: matt@speakstraightmortgage.com.

Sources. Seller-contribution limits and temporary-buydown underwriting come from the Fannie Mae Selling Guide for conventional loans, HUD Handbook 4000.1 for FHA, and VA for VA loans. Payment and escrow figures on this page are computed from a standard 30-year amortization at 6.875%, are illustrative, and are not a commitment to lend. Program rules change, so we confirm the current cap on your file before you write an offer.

Frequently Asked Questions

What is a 3-2-1 buydown?
A 3-2-1 buydown is a temporary interest-rate reduction on a 30-year fixed mortgage, lowering the rate by 3% in year 1, 2% in year 2, 1% in year 3 before settling at the note rate. It is funded up front into an escrow account, normally by the seller as a negotiated concession.
How much does a 3-2-1 buydown cost?
On a $550,000 home with 5% down at 6.875%, about $23,814, which is 4.3% of the purchase price. The cost is simply the total of the monthly payment differences the escrow account covers.
What is the payment on a 3-2-1 buydown?
First-year principal and interest is about $2,457 instead of $3,432 at the note rate, then $2,765 in year 2, $3,091 in year 3. Taxes, insurance and any HOA are on top and do not change.
Do I have to qualify at the lower payment?
No, the opposite. The lender qualifies you at the full note-rate payment, so a temporary buydown improves your cash flow in the early years without increasing your approval amount.

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