A mortgage buydown trades money up front for a lower interest rate. The upside is a smaller monthly payment, either for the first one to three years (a temporary buydown) or for the life of the loan (permanent points). The downside is that the savings are never free: someone pays for them, and a temporary buydown ends with a payment increase you have to be ready for. Below we cover how each type works, what it costs, a worked example, and how to decide.
TL;DR
- A temporary buydown, like a 2-1, cuts your payment for the first one to three years. Your actual note rate does not change, and the payment goes back to full after the subsidy ends.
- Permanent points lower the rate for the whole loan, but you only come out ahead if you keep the loan past the breakeven point, often around five years.
- Seller-paid buydowns are worth taking only if you are not giving up a bigger price cut or other concessions to get them.
- You must qualify at the full note rate, and you must be able to afford that payment when the discount ends.
- Compare any buydown offer on the Loan Estimate, line by line, against a no-buydown offer.
Table of Contents
- What a mortgage buydown is
- How a 2-1 buydown works
- The pros of a mortgage buydown
- The cons of a mortgage buydown
- Buydown vs. buying points: which is better?
- How to calculate the breakeven on points
- Questions to answer before you choose
- Our perspective
- Find a lender who will quote it plainly
- Other ways to lower your rate or payment
- FAQ
- Sources
What a mortgage buydown is
A buydown is money paid to reduce the interest you pay. There are two families.
Temporary buydowns lower your payment for an initial period, typically one to three years, often funded by a seller, builder, or lender. The structure matters: the mortgage note shows the full, permanent rate, and a separate subsidy account pays the difference while the buydown runs. You are not in an adjustable loan. Your loan is a fixed loan with a subsidized start.
Permanent buydowns are what most people call buying points. You pay the lender a percentage of the loan amount at closing, and in return the rate is lower for the entire term. The CFPB explains that points shown on a Loan Estimate and Closing Disclosure must be tied to a lower interest rate, so you can see what you are getting for your money.
In practice, 2-1 temporary buydowns and 1% permanent buydowns are among the most common forms of rate reduction, according to a Rocket Mortgage executive quoted by the Wall Street Journal.
How a 2-1 buydown works
A 2-1 buydown lowers your rate by 2 percentage points in year one and 1 point in year two. In year three, you pay the full note rate. Variations exist, such as a 1-0 or 3-2-1, which follow the same logic over a different length.
Here is an illustration. The figures are our own math, not a lender quote, on a $300,000 loan with a 30-year term and a 6.5% note rate:
| Period | Rate you pay | Approx. monthly principal and interest | Approx. savings vs. full payment |
|---|---|---|---|
| Year 1 | 4.5% | $1,520 | about $376 a month |
| Year 2 | 5.5% | $1,703 | about $193 a month |
| Year 3 onward | 6.5% | $1,896 | none |
Total subsidy over two years: roughly $6,800. That is approximately the amount someone has to deposit into the subsidy account at closing. Taxes and insurance are extra and not included here.
Two details people miss:
- You qualify at the full rate. The lender must qualify you on the full note rate, not the discounted one. A buydown does not help you pass debt-to-income limits, whatever a sales pitch implies. The Legal Information Institute makes the same point: the subsidy does not change the underlying note rate.
- If you sell or the loan is foreclosed, leftover subsidy funds go to the loan. On VA loans, any remaining funds in the buydown escrow account must be applied to the outstanding mortgage debt. They do not come back to you as cash.
The pros of a mortgage buydown
Lower payments when cash is tightest
The first years of homeownership are often the most expensive: moving costs, furniture, repairs. A temporary buydown frees cash flow then. Industry training material from the Federal Home Loan Bank’s mortgage program lists lower early payments for renovations among the main uses.
A below-market start without ARM risk
The same source notes that a temporary buydown gives a lower starting rate without the rate-reset risk of an adjustable loan. Your payment steps up on a schedule you know on day one. If you are still weighing the two structures, our guide to fixed vs adjustable mortgages walks through the timeline question.
Someone else may pay for it
Sellers, builders and sometimes lenders fund temporary buydowns. When a seller would rather offer a rate subsidy than cut the price, you may get more monthly relief per dollar of seller money than a price drop would give you. For the seller, the appeal is that the headline price stays intact.
Permanent points reward long ownership
If you will keep the loan for many years, a lower rate compounds in your favor. You pay less interest every month for as long as you hold the loan.
The cons of a mortgage buydown
Payment shock when the subsidy ends
The payment in year three of a 2-1 is the payment you were approved for, but not the one you have been living with. In our example it jumps about $376 a month from year one. If your plan is to refinance when rates fall, remember that nobody can promise they will. Budget as if the full payment is permanent.
It does not make the house more affordable, only the start
The lender qualifies you on the full rate, so a buydown cannot stretch what you can borrow. It only moves some of your cost forward in time.
Seller money may come with a trade-off
The WSJ coverage and the research behind it flag one question to ask: is the seller offering the buydown in place of other valuable concessions? A $7,000 buydown can be worse than a $10,000 price cut, because the price cut lowers your payment for every month and your property tax basis too, while the buydown expires.
Limited availability
The FHLB material also notes limited availability for some loan types and property types. Ask your lender which programs allow temporary buydowns, and what caps apply to seller contributions on your loan type.
Self-funded points can lose money
If you plan to move or refinance after only a few years, a self-funded permanent buydown often fails to save money, as one financial expert told the Journal. The loan ends before the points have paid you back.
Buydown vs. buying points: which is better?
They solve different problems.
| Temporary buydown (2-1) | Permanent points | |
|---|---|---|
| Lower payment lasts | 1 to 3 years | Whole loan |
| Typically paid by | Seller, builder, lender, or you | Mostly you; sometimes the seller |
| Your note rate | Unchanged | Lower |
| Best fit | Short-term cash flow relief, expected income growth | Long-term ownership, stable plans |
| Main risk | Payment increase | Selling or refinancing before breakeven |
A useful rule: if someone else is paying and you can handle the full payment, a temporary buydown is a gift. If you are paying with your own cash, permanent points usually make more sense only when you are confident you will keep the loan for years. If you would rather spend that cash on a larger down payment, compare the outcomes before committing.
How to calculate the breakeven on points
The formula is simple: divide the upfront cost of the buydown by the monthly savings it produces. The result is the number of months until you are even. It makes sense to buy only if you expect to stay in the loan longer than that.
A worked example, again our own illustration on a $300,000 loan at 30 years:
- One point costs 1% of the loan: $3,000.
- Suppose it lowers the rate from 6.5% to 6.25%. The principal-and-interest payment drops from about $1,896 to about $1,847, a saving of roughly $49.
- $3,000 divided by $49 is about 61 months, just over five years.
Sell, refinance, or pay the loan off in year four and you lost money. Keep it for ten years and you come out roughly $2,900 ahead before considering what else that $3,000 could have earned. The rate drop per point varies by lender and day, so use the exact figures on your own Loan Estimate, not our example.
Two refinements. First, if you may refinance, your real horizon is the time until that refinance, not the loan term. Our piece on when refinancing pays off and the refinance break-even math show how to test that. Second, the money has other uses. Putting $3,000 toward a larger down payment or an emergency fund has value that a breakeven formula ignores.
Questions to answer before you choose
The research from the Wall Street Journal and the lenders’ own materials points to the same checklist:
- How long will you stay? Be honest about job moves, family size and the chance of refinancing.
- What is the total cost versus the monthly saving? That is your breakeven.
- Can you afford the note-rate payment? Run it at the full rate today, with taxes and insurance, and see if it fits your budget.
- What did you give up? If the seller is paying for the buydown, ask what price or repair concession you could have had instead.
- Is the buydown shown clearly in writing? Find it on the Loan Estimate and compare offers with and without it. Our guide to reading the Loan Estimate and the “In 5 Years” comparison shows where.
- What are the other fees? A cheap-looking rate can carry heavy charges. See our breakdown of lender fees before you sign.
Our perspective
We publish rankings of Metro Detroit lenders and agents, and we do not accept payment for placement. That gives us a plain view on buydowns: they are a tool, and the sales pitch around them is usually louder than the math.
In a market like Wayne, Oakland and Macomb counties, where many buyers are first-timers watching a tight monthly budget, a seller-funded 2-1 can be a real help, but only when the price you agreed to is a fair one. A buydown that comes bundled with a higher price is not a discount. It is a loan of your own money back to you at the start and a bill later.
Our rule of thumb: treat the full note-rate payment as your real payment, and treat the buydown as a bonus. If you can afford the real payment, take the bonus. If you can only afford the discounted payment, the answer is a cheaper house, a larger down payment, or a different loan, not a buydown. For self-funded points, we would only buy them if the breakeven is comfortably shorter than the time you realistically expect to hold the loan. And ask at least two lenders for the same quote with and without points, so you can see the true price of each step.
— Bryan
Find a lender who will quote it plainly
The best way to test a buydown is to see it next to a no-buydown offer from more than one lender. Our rankings of mortgage lenders in Metro Detroit are built from independent research and customer sentiment, are updated quarterly, and providers cannot pay to move up. If you are not sure whether to go through a broker or direct, start with our guide to mortgage brokers vs. lenders.
If a seller is offering a buydown as part of a negotiation, a good buyer’s agent will help you weigh it against a price cut. You can see how local agents compare in our Metro Detroit real estate agent rankings.
Other ways to lower your rate or payment
A buydown is one route among several. A shorter loan has a lower rate, though a higher payment, as we show in 15 vs. 30 year mortgage. Taking over a seller’s existing low-rate loan is another, with its own checks: see assumable mortgages. If you already own and your rate is high, a refinance or a recast may beat any buydown; our recast vs refinance break-even guide shows the numbers.
FAQ
Is a 2-1 buydown worth it?
It is worth it when someone else pays for it, you can afford the full note-rate payment, and you did not give up a larger price cut to get it. It is rarely worth it if you pay for it yourself and expect to refinance or sell within a few years. Do the math on your own quote.
Who pays for a seller-paid buydown?
The seller (or builder) deposits the subsidy amount into an account at closing, and that account covers the difference between your reduced payment and the full payment each month. Your loan still carries the full note rate. Ask your lender about the limits on seller contributions for your specific loan type.
What is the difference between a buydown and buying points?
A temporary buydown lowers your payment for one to three years and then ends. Buying points lowers your rate for the whole loan, in exchange for a larger upfront fee. Points show on your Loan Estimate and must be tied to a lower rate.
How do I find the breakeven point for mortgage points?
Divide what you pay for the points by how much your monthly payment falls. The result is the months needed to recover your cost. If you will keep the loan longer than that, the points can pay off.
Does a buydown help me qualify for a bigger loan?
No. For temporary buydowns, lenders qualify you on the full note rate, not the reduced payment. The buydown eases your early budget, but it does not raise your borrowing limit.
Sources
- Fannie Mae: Overview of Temporary Buydown
- Legal Information Institute: Mortgage rate buydown
- Wall Street Journal Buy Side: How to Buy Down Your Mortgage Rate
- First State Bank: Temporary Mortgage Buydown
- FHFA Office of Inspector General: Temporary Interest Rate Buydowns Dashboard
- Department of Veterans Affairs: Temporary Buydowns
- Federal Home Loan Bank MPF: Temporary Rate Buydowns
- Consumer Financial Protection Bureau: Lender credits and points