Free Mortgage Buydown Calculator
Estimate your savings from a temporary interest rate buydown. Compare 3-2-1, 2-1, 1-1, and 1-0 buydowns in seconds.

Enjoying the calculator? A coffee is a great way to say thank you.
Free Mortgage Buydown Calculator: Save on Your Home Loan
Estimate Your Savings with Our Simple Buydown Tool
Discover how a mortgage buydown can lower your interest rate and monthly payments with our free Mortgage Buydown Calculator. Designed for first-time homebuyers, refinancers, and investors, this tool provides clear insights into potential savings over your loan's lifetime. Start saving today!
Why Choose a Mortgage Buydown Calculator?
A mortgage buydown reduces your interest rate upfront, making homeownership more affordable or lowering your current mortgage costs. Our calculator helps you:
- Maximize Savings: See immediate and long-term reductions in monthly payments and total interest.
- Weigh Costs vs. Benefits: Compare upfront buydown fees with lifetime savings.
- Tailor Your Plan: Explore custom buydown scenarios based on your loan details.
How Our Buydown Calculator Works
- Input Loan Details: Enter your loan amount, term, and current interest rate.
- Select a Buydown: Choose options like a 3-2-1 or 2-1 buydown to see the impact.
- Get Results: Instantly view your new monthly payments and total savings.
Top Benefits of a Mortgage Buydown
- Reduced Payments: Lower monthly costs for better budget management.
- Greater Affordability: Qualify for your dream home with a lower rate.
- Interest Savings: Keep more money over the life of your mortgage.
Frequently Asked Questions
What is a mortgage buydown?
A mortgage buydown is when a borrower (or seller/builder) pays an upfront fee to temporarily or permanently reduce the interest rate on a mortgage, leading to lower monthly payments during the buydown period.
How does a 3-2-1 buydown work?
A 3-2-1 buydown lowers the interest rate by 3 percentage points in year 1, 2 points in year 2, and 1 point in year 3. In year 4 the rate returns to the note rate for the remainder of the loan.
How does a 2-1 buydown work?
A 2-1 buydown reduces the interest rate by 2 percentage points in year 1 and 1 point in year 2. From year 3 on, the borrower pays the full note rate.
Who pays for a mortgage buydown?
Buydowns are often funded by the seller, builder, or lender as a concession to help a buyer qualify or afford the home. Borrowers can also pay for a buydown themselves if it makes financial sense.
Is a mortgage buydown worth it?
It depends on how long you plan to stay in the home, the upfront cost of the buydown, and your monthly savings. Our calculator compares the upfront fee against the lifetime savings so you can decide.
Can I use a mortgage buydown when refinancing?
Yes. Buydowns can be used on both purchases and refinances. The calculator works the same way for either scenario.
What buydown types does this calculator support?
The calculator supports 3-2-1, 2-1, 1-1, and 1-0 buydown structures. Each shows the reduced rate, monthly payment, and savings for each year of the buydown period.
Does a mortgage buydown affect my credit score?
No. A buydown is a one-time upfront payment that lowers the interest rate; it is not a credit agreement and does not directly affect your credit score.
Disclaimer
This Mortgage Buydown Calculator is an educational tool for estimating savings and understanding the mortgage process. Results are approximations and exclude taxes, insurance, or other fees, which may increase actual payments. This is not an offer or guarantee of credit. For accurate quotes, consult a licensed loan officer.
By using this site, you consent to data collection via Google Analytics.
Example: A 3-2-1 buydown on a $225,000 home (20% down, 30-year fixed, 6.673% APR, $3,320.80 in fees) starts at 3.5% ($808.28/month) in year 1, rises to 4.5% ($912.03/month) in year 2, 5.5% ($1,022.02/month) in year 3, then 6.5% ($1,137.72/month) with 0.107 points ($192.60) at closing. Rates as of 1/30/23; subject to change. Assumes a 760 credit score. Approval depends on income, property, and credit checks. Seller/builder must fund buydown costs. Some loans may not allow buydowns; restrictions apply.
Mortgage Calculators
Mortgage Payment
Free mortgage payment calculator. Estimate your monthly principal and interest payment, total interest paid, and view a full amortization schedule for any loan amount, rate, and term.
Points Calculator
Free mortgage points calculator. Compare paying discount points upfront against the monthly savings and find your break-even point to decide if buying down your rate is worth it.
Refinance
Free mortgage refinance calculator. Compare your current loan against a new rate and term to see monthly savings, total cost, and your break-even point so you can decide if refinancing is worth it.
Seller Concessions
Free seller concessions calculator. See how seller-paid closing costs and buydowns affect your monthly payment and out-of-pocket cash at closing on a home purchase.
APR Calculator
Free mortgage APR calculator. Convert your interest rate to APR by adding closing costs and fees, so you can compare the true cost of loans with different rates and fee structures.