For a buyer focused on monthly payment, how the seller’s money is used might matter more than how much credit you get.
Buying Down Your Rate: What It Is, How It Works, and Who It’s For
If you’ve been house hunting in the last few years, you’ve probably heard the term “buydown” thrown around. With the 30-year mortgage fixed interest rate averaging 7.32% in Freddie Mac’s most recent weekly survey (October 22), buyers and sellers are both looking for ways to make the math work to buy and sell houses. A rate buydown is one of the most useful tools for lowering a buyer’s monthly payment, and it’s also one of the least understood.
What a buydown actually is
A buydown is money paid at closing to lower your mortgage interest rate. The money can come from you, the seller (as a negotiated credit), a builder, or sometimes the lender. The lower your interest rate is, the lower your monthly payment will be. But there are two different types of buy downs, and they work very differently.
A permanent buydown lowers your rate for the life of the loan. You’re paying “discount points,” where one point equals 1% of the loan amount. A common rule of thumb is that one point lowers the rate by about a quarter of a percent, though pricing varies by lender and by day. That means a full 1% rate reduction often costs somewhere around 3.5% to 4% of the loan amount.
Here’s an example. On an $800,000 purchase with 20% down (a $640,000 loan), dropping the rate from 7.32% to 6.32% lowers principal and interest from about $4,396 to $3,970. That’s $427 a month, every month, for 30 years. At roughly $24,000, it takes a little under five years for that savings to pay back the cost.
A temporary buydown lowers your payment for the first year or two, then steps back up to your actual note rate. The most common version is a 2-1 buydown: two percentage points lower in year one, one point lower in year two, full rate from year three on.
Using the same $640,000 loan at 7.32%:
The total cost is the sum of those savings, about $15,100, funded up front at closing and held in an account that covers the difference each month. That’s less than the $24,000 permanent buydown, but the relief runs out after two years.
Why a credit can go further than a price cut
For a buyer focused on monthly payment, how the seller’s money is used matters as much as how much it is. On that same $800,000 home, a $24,000 price reduction lowers your loan by $19,200 and your monthly payment by only about $132. Put the same $24,000 toward a permanent buydown and you’re saving around $427 a month.
Another way to think about it: a 1% lower rate is worth roughly 10% in buying power. A buyer who qualifies for an $800,000 home at 7.32% could afford close to $880,000 at 6.32% with a similar payment.
The fine print
You qualify at the full rate. Lenders underwrite a temporary buydown at the note rate, not the reduced one. The buydown makes the first two years easier, but you need to be able to carry the full payment.
Year three will happen. In the example above, your payment goes up $834 a month when the buydown ends. Many buyers plan to refinance if rates fall, and that’s a reasonable plan, but it isn’t a guarantee. I’d only do a 2-1 if the full payment works for your budget without a refinance.
There are limits on seller credits. For conventional loans, how much a seller can contribute depends on your down payment: up to 3% of the price with less than 10% down, 6% with 10% to 25% down, and 9% with more than 25% down. FHA and VA loans have their own caps. A buydown counts toward those limits.
If you refinance or sell early, unused temporary buydown funds don’t disappear. Under Fannie Mae guidelines they’re typically applied to your loan payoff or returned according to the buydown agreement. Ask your lender how theirs is written.
The appraisal still matters. Credit limits are based on the lower of the price or the appraised value. If the appraisal comes in short, your credit may need to be renegotiated.
Who should consider which option
Here’s what I advise. Before writing an offer, answer three questions:
1) How long will you keep this loan?
2) How much cash do you want left over after closing?
3) What do you expect your income to look like in two years?
Then consider:
Short on cash to close? A closing cost credit may help more than a lower rate.
Planning to keep the loan six years or more? A permanent buydown usually makes the most sense.
Expecting your income to rise, or planning to refinance? A temporary buydown can ease the first couple of years.
Worried about an appraisal gap? A price reduction may be the better ask.
Want a bit of each? The credit can be split, and writing it as “up to” a set amount gives your lender room to allocate it.
Some lenders offer their own buydown programs that can be combined with a seller credit, so it’s worth asking yours what’s available.
What this means right now
After years of tight inventory and few negotiations, the market here has more room for conversation. Some homes still sell quickly at or near list price because they’re well presented and priced right. But many sales now include credits, and buydowns are a big reason why.
They’re not magic, and they’re not for everyone, but used thoughtfully, with a lender who’ll run the actual numbers for your situation, they can make a real difference in what you pay each month.
If you’re weighing a move, I’m always happy to walk through the options with you.
Let’s work together
If you've made it this far, you probably care about doing this right. That's exactly the kind of buyer or seller I love working with.
I brought 20 years of business experience to real estate for one reason — I believed people deserved better guidance on one of the biggest financial decisions of their lives. The last four years have been about delivering on that, one client and one transaction at a time. My approach is built around education and empowerment, so you always know where you stand and what comes next, whether you're buying your first home or selling one you've loved for years.
If you're ready to approach your next move with this kind of clarity and intention, and you want someone who treats your transaction with genuine care and rigor, I'd love to be part of that process. You deserve to feel confident and informed at every step, not just at the end. Reach out and let's start the conversation.
