By Sylvia Dorrance, REALTOR®, eXp Realty
When you shop for a home in the Boise area, the financing options you choose can shape your budget for years. Two strategies come up often: adjustable-rate mortgages and mortgage rate buydowns. Neither is inherently better than the other, and the right fit depends on your timeline, your budget, and the specifics of your loan. Understanding how each works helps you make an informed decision, no matter what interest rates are doing.
How an adjustable-rate mortgage works
An adjustable-rate mortgage (ARM) offers a fixed interest rate for an initial period, commonly five, seven, or ten years. After that period ends, the rate can adjust periodically based on a market index plus a margin, subject to caps that limit how much it can move. ARMs usually start with a lower rate in exchange for payments that can change later. Your payment can increase when the rate adjusts, so it's important to understand exactly when and how the rate can change, and to be prepared for a higher payment later. Refinancing is never guaranteed, and it is not required for an ARM to be a reasonable choice. An ARM can suit a buyer who understands the adjustment schedule and plans accordingly, whether that means moving, refinancing if the numbers work, or simply budgeting for a higher payment when the fixed period ends.
Temporary buydowns and permanent discount points
A temporary buydown reduces your monthly payment for the first one to three years by paying funds up front, often contributed by the seller or builder. A common version is a 2-1 buydown, where your payment is reduced for the first two years and returns to the full amount in year three. It's important to know that a temporary buydown subsidizes your monthly payments during that period rather than permanently changing your contractual interest rate. Your rate stays the same; the buydown simply covers part of your payment early on. A permanent buydown, by contrast, uses discount points paid at closing to lower your contractual interest rate for the life of the loan. You're trading more closing costs today for a lower payment over the full term. It makes sense when you plan to stay in the home long enough for the lower payment to outweigh the upfront cost.
A 2-1 buydown lowers the rate by 2 percentage points in year one and 1 point in year two before it returns to the note rate. Here is how the buydown steps down and then returns in relative terms:
| Year | Rate compared with the note rate |
|---|---|
| Year 1 | 2 percentage points below the note rate |
| Year 2 | 1 percentage point below the note rate |
| Year 3 and after | The note rate |
For current rates and a payment estimate, talk with your lender or use the Consumer Financial Protection Bureau's rate tool .
ARMs and buydowns aren't mutually exclusive
An ARM and a buydown are not necessarily either-or. Some borrowers combine a lower-rate ARM with a temporary buydown to reduce payments even further in the early years. Whether you can do this, and what it looks like, depends on the lender and the loan program. Your lender can tell you which combinations are available for your situation.
How seller concessions and builder incentives can help Boise buyers
In the Boise area, buyers may be able to negotiate contributions toward eligible financing costs as part of the offer. Sellers can sometimes agree to concessions, and builders may offer incentives on new construction. These contributions are negotiable and are subject to financing guidelines and applicable limits, so it's worth comparing the whole picture. When you evaluate an offer, look at the closing-cost credits, any temporary buydown, any permanent discount points, and the purchase price together, because a lower list price and a financing contribution can affect your costs in different ways. Your agent and lender can help you see how each option changes your specific numbers.
| Loan type | How it works | Potential advantages | Risks | Question to ask your lender |
|---|---|---|---|---|
| Fixed-rate mortgage | Rate stays the same for the full term | Predictable payments; rate may be higher than an ARM's initial rate | You plan to stay long term and want certainty | What is my rate and total cost over the life of the loan? |
| ARM | Fixed rate for an initial period, then adjusts with caps | Lower starting payment; payment can increase when the rate adjusts | You understand the adjustment schedule and are prepared for a higher payment later | When can my rate adjust, by how much, and what could my payment become? |
| Temporary buydown | Subsidizes your payment for the first one to three years; your contractual rate stays the same | Lower early payments; your full payment returns when the buydown ends | You want to bridge a high-rate period early on | What happens to my payment when the buydown ends? |
| Permanent buydown | Discount points lower your contractual rate for the life of the loan | Lower payment over the full term; higher closing costs | You plan to own long enough to recoup the points | How long will I need to stay for the points to pay off? |
Questions to ask before choosing a mortgage strategy
Before you settle on a financing approach, talk through these with your lender:
- How long do you plan to own this home?
- What will your payment be now, and what could it be later?
- What are the total closing costs, including any points or buydown funds?
- What are the loan terms, including any caps or adjustment periods?
- How does each option compare for your budget over the next few years?
Long-term affordability matters more than the lowest initial payment. A strategy that looks great in year one can become a strain later, so weigh the full picture.
Sylvia's take
As your REALTOR®, I help you evaluate homes, negotiate favorable terms, and understand how the overall purchase fits your goals. Your mortgage lender can explain the financing options and help you compare the numbers so you can make a well-informed decision.
Frequently asked questions
Is an ARM or a buydown better for me?
It depends on how long you plan to own the home and your budget. Your lender can compare the scenarios for your situation.
What's the difference between a temporary and permanent buydown?
A temporary buydown subsidizes your payment for the first one to three years without changing your contractual rate; a permanent buydown lowers your rate for the life of the loan using discount points.
Can I combine an ARM with a buydown?
Sometimes, depending on the lender and loan program. Ask your lender which combinations are available.
Can a seller help with my closing costs or buydown?
Sellers can sometimes agree to concessions, and builders may offer incentives, subject to financing guidelines and limits. Your agent and lender can help you see how that affects your numbers.
Is refinancing guaranteed after an ARM's fixed period?
No. Refinancing is never guaranteed, and it isn't required for an ARM to be appropriate. What matters is understanding and planning for the adjusted payment.