What’s a buy down?

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Buying a house is a big deal financially, especially when you factor in rising interest rates. But what if there was a way to obtain a lower interest rate thanks to the help of a temporary buy-down? This money-saving technique is not new, but as interest rates have escalated over the last year, the old practice is quickly becoming commonplace yet again.

How does a buy-down work?

Unlike a typical buy-down where the buyer pays mortgage points at the time of closing to permanently lower the interest rate, a temporary buy-down offers a short-term savings on interest rates and is financed by sellers. Here’s how it works: The seller offers a concession – a buy-down subsidy to the buyer, which is used to temporarily buy down the interest rate.

Types of buy-downs

2-1 buy-down

With a 2-1 buy-down, during the first year of your mortgage, the interest rate will be 2% below market, and in the second year it will be 1% lower.

For example, if the going interest rate is 7.25%, the buyer’s mortgage payment would be based on 5.25% interest for the first 12 months of the loan and 6.25% for the second 12 months of the loan. The buyer would then pay 7.25% for the remainder of the loan (or until they refinance).

3-2-1 buy-down

A 3-2-1 buy-down lowers the borrower’s interest rates for three years. The first year the borrower has an interest rate that is 3% below market, 2% below market the second year and 1% below market the third year. The payment then reverts back to the original market interest rate for the remainder of the loan or until they refinance.

How much does a buy-down cost?

Remember, temporary buy-downs are financed by the seller, and will cost the total difference in payment between 5.25% and 7.25% for the first year, and the difference in payment between 6.25% and 7.25% for the second year.

In keeping with the 2-1 buy-down example above, using a home purchase price of $450,000, and a down payment of $45,000, the cost of this particular buy-down would be about $9,540.00

If you think a buy-down is right for you, make sure to contact your local mortgage representative.

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About the Author
Carin Miller


About Carin Miller, REALTOR®

Founder, The Charlotte Life Team at Real • Serving North & South Carolina • Charlotte Metro & Luxury Relocation Specialist


Your Trusted Charlotte REALTOR®

Carin Miller, REALTOR® and founder of The Charlotte Life Team at Real, ranks among the top 3% of agents in the Charlotte metro area. Licensed in both North and South Carolina, Carin brings over a decade of real estate experience and a proven track record of $66 million in closed sales across 150+ successful transactions.

She specializes in luxury homes, relocation, new construction, and move-up or downsizing clients throughout Ballantyne, Weddington, Marvin, South Park, Indian Land, and Fort Mill. Carin’s approach blends data-driven strategy with authentic connection, making every client experience seamless, transparent, and personalized.

Recognized for Excellence

  • Charlotte Real Producers Top 500 Agent
  • FastExpert’s 2025 Top Agent in Waxhaw, NC
  • Allen Tate Chairman’s Circle (Individual)
  • Allen Tate Presidents Circle (Team) — multiple years
  • Allen Tate Client Relations Associate of the Year — Ballantyne
  • Red Penguin Quality Service Award
  • Designations: Real Luxury, Real Elite, Real Military

These honors reflect not just production volume but a commitment to integrity, professionalism, and exceptional client service.

What Clients Say

With 150+ verified reviews across Google, Zillow, Realtor.com, and FastExpert, Carin has built her business on trust and referrals. Clients consistently describe her as:

“Honest, strategic, and incredibly organized.”

“Always one step ahead.”

“A true advocate who makes the process simple, even from out of state.”

She combines AI-powered market tools, strong negotiation, and clear communication to deliver standout results in Charlotte’s competitive market.

Rooted in Charlotte, Focused on You

Originally from Florida, Carin has called Charlotte home for more than a decade—and she’s passionate about helping others find their place here. Her deep local insight, paired with her own relocation experience, gives clients an edge when moving into or within the Carolinas. When she’s not serving clients, Carin enjoys exploring new restaurants, supporting local businesses, and spending time with her Golden Retrievers.

A Personal Note

“Real estate isn’t just about buying or selling a home—it’s about life transitions, opportunities, and the people we meet along the way. My goal is to make every move strategic, transparent, and stress-free.”

Carin Miller, REALTOR® | The Charlotte Life Team at Real

Charlotte Real Estate Expertise

Service Areas: Charlotte, Waxhaw, Weddington, Marvin, South Park, Fort Mill, Indian Land, Rock Hill, Ballantyne, SouthEnd, Palisades, Belmont, and surrounding communities.
Specialties: Luxury homes, relocation, new construction, move-up and downsizing clients.
Production: $66M+ closed sales • Top 3% Charlotte MLS • 10+ years licensed.