Quick Answer
A rate buydown is a way to lower your interest rate and your monthly payment for the first year or more of a loan, typically by paying extra at closing, or by having the seller, a builder, or the lender cover that cost.
A temporary buydown lowers the rate for a set period, then steps back up. A permanent buydown lowers the rate for the life of the loan, which is essentially paying discount points.
In plain language, a buydown trades a little bit of upfront money today for a smaller payment early in your loan. It is one of the most common tools I see on new construction and first-time buyer loans, and it is worth understanding before a seller or builder offers it to you.
Fair warning up front: the exact structure varies by lender and program, so nothing below is a guarantee of what will be offered. Use this as the map, then confirm what is actually available on your scenario.
Why Buydowns Are Popular
Buydowns show up most often in three places: new construction incentives, seller negotiations, and first-time buyer programs. And the reason is simple. A lower rate in the early years means a lower monthly payment, and that lower payment can be the difference between qualifying for the home or feeling comfortable in it from month one.
For a first-time buyer, the first year or two of homeownership often carries the most cash strain, between the down payment, closing costs, moving expenses, and furnishing a place. A temporary buydown can smooth that landing, giving you a smaller payment right as everything else is piling up, then stepping up to the real payment once you are settled.
For the permanent side, where you lower the rate for the whole loan, the trade-offs are about breakeven and how long you plan to stay. That is the territory of mortgage discount points, so head there when you want the full breakdown. And because builders are the ones funding a lot of these, the builder incentive question is a natural next read too.
The 2-1 Buydown (Temporary)
The 2-1 buydown is the most common temporary structure. In a typical 2-1, your rate is reduced by 2 percentage points in year one, by 1 percentage point in year two, and then sits at the full note rate from year three on. The word "typical" matters here: the exact structure can vary by lender and program, so treat this as the standard picture, not a promise.
The cost to cover the gap between the lowered early payments and the full payment is typically collected at closing and set aside to fund the difference as the loan steps up. As your income or comfort level grows from one year to the next, the payment grows with it.
How a 2-1 Buydown Steps Up
Typical structure, shown year by year. Illustrative example, not current market data.
- Year 1
-2%
Lowest rate, lowest payment. The point of the buydown.
- Year 2
-1%
Rate and payment step up a notch, closer to the full note rate.
- Year 3+
Full note rate
The real payment arrives. Make sure you can handle this one.
The 3-2-1 Buydown
A 3-2-1 buydown is a steeper version of the same idea. In a typical structure, your rate is reduced by 3 percentage points in year one, 2 percentage points in year two, 1 percentage point in year three, and then settles at the full note rate from year four on. The steps are bigger, the early payments are lower, and the climb back up takes longer.
It is less common than a 2-1 for one straightforward reason: it costs more. Funding three years of stepped-up subsidy is pricier than funding two, so you are more likely to see a 3-2-1 as a well-funded builder incentive than as a routine seller offer. Again, illustrative, and offerings vary by lender and program.
Permanent Buydown = Points
A permanent buydown lowers the rate for the entire life of the loan, not just the first few years. And here is the thing that clears up a lot of confusion: a permanent buydown is just another name for paying discount points. You pay extra at closing to buy a lower rate that lasts the whole term.
Because the reduction lasts the whole loan, the math lives or dies on how long you keep the loan and when you hit breakeven. If you plan to stay well past the breakeven point, a permanent buydown can save real money. If you might sell or refinance sooner, the upfront cost can be lost. That whole decision is covered in depth on the are mortgage points worth it page, and it is the permanent-buydown read you want before you decide.
Who Pays for It?
A buydown has to be paid for by someone. The choice of who pays shapes both your closing costs and your offer strategy, so it is worth knowing your options.
You Pay at Closing
The cash to fund the buydown is collected as part of your closing costs. Direct, simple, and fully within your control.
Seller Concession
A seller can contribute to a buydown as part of your offer and negotiation, just like a contribution toward closing costs. See how concessions fit into your offer on the seller concessions page.
Builder or Lender Incentive
This is where buydowns get most common, especially on new construction. A builder or lender funds the buydown to keep early payments low and sell homes. Ask what is actually on offer with an eye on the builder incentives checklist.
Buydown Pros and Cons
The Payoff
- Lower early monthly payments, which can help you qualify or get comfortable faster.
- A gentler landing through the most cash-heavy first year or two.
- Can be funded by a seller or builder instead of out of your own pocket.
Watch Out For
- The payment steps up later, so you need to handle the full payment when it arrives.
- Make sure a low early number is not masking a home you cannot really afford in the long run.
- If you pay for it yourself, the buydown cost is real money at closing that could go elsewhere.
Buydown vs Points vs Just a Better Rate
A quick way to keep these straight: a temporary buydown is a short-term gift to your early payments, permanent points buy a lower rate for the whole loan, and a genuinely better rate with no extra cost at all is simply the best deal if you can get it. The table below shows the shape of each. Illustrative, not current market data.
| Approach | How the rate works | What it costs |
|---|---|---|
| 2-1 temporary buydown | Lower for year one and two, then the full note rate. | Upfront cost to fund the early gap, or a seller or builder covers it. |
| Permanent buydown (points) | Lower for the entire life of the loan. | Discount points paid at closing; worth it only past breakeven. |
| Just a better rate | Lower rate with nothing built to step up. | No extra buydown cost, if the market or your qualification earns it. |
This table is an illustrative comparison of how each approach is structured, not a statement of current pricing.
Worked Example
Illustrative numbers only, for teaching the shape of a temporary buydown. Not current market data and not a quote for your loan.
The point of the example is not those exact numbers, it is the shape: a noticeably lower payment in year one, a step up in year two, and a real jump to the full payment in year three. Roughly $500 a month between the year-one payment and the full payment is the swing you want to plan for, before you ever sign.
Frequently Asked Questions
Does a buydown lower the loan balance?
No. A buydown lowers your interest rate, not the amount you owe. Your loan balance is still paid down according to your loan terms. The buydown simply changes how much of each early payment goes to interest, so the rate, and therefore the payment, is lower for a period, then steps back up.
Can a seller pay for a buydown?
Yes, in many cases a seller can contribute toward a buydown as part of your offer, subject to the loan program's concession limits. It is effectively one way to spend a seller concession, and it can be asked for in the same negotiation as a contribution to closing costs. The different ways concessions can be structured are covered on the seller concessions page.
Is a buydown the same as an ARM?
No, and the difference matters. A temporary buydown has a fixed schedule of rate steps that is set up front and never changes, regardless of what the market does. An Adjustable Rate Mortgage, or ARM, has a rate that can move later based on an index, which is genuinely variable risk. If you are weighing the two, the adjustable-rate mortgage explained page walks through how ARMs actually behave.