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Mortgage Calculator

Temporary Buydown
Calculator

Show buyers exactly what a 2-1 buydown saves, and what the seller credit must fund

Model 2-1, 3-2-1, and 1-0 temporary buydowns with per-year payments, monthly relief, and the exact escrow cost. The tool loan officers use to structure seller concessions in a high-rate market.

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See It In Action

Play with the calculator below. This is exactly what your visitors will see.

Temporary Buydown Calculator

Calculate 2-1 and 3-2-1 buydown costs, reduced payments, and required seller credit

Loan Details

Your loan and note rate

$
%

Buydown Cost (Seller Credit Needed)

$9,104

Monthly P&I by Year

Year 1

$2,027

Year 2

$2,271

Year 3

$2,528

After Buydown

$2,528

Payment Relief

Year 1 Relief

$6,018

Year 2 Relief

$3,085

Year 3 Relief

$0

Yr 1 Monthly Relief

$502

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Simple Process

How It Works

Get your results in four simple steps

1

Enter the scenario

Fill in 4 plain-English inputs across 1 short sections. Sensible defaults get you a result immediately.

2

Read the verdict

Results update instantly: the headline figure, supporting stats, and clear pass/fail states where qualification applies.

3

Share or download

Send a live share link or download a branded PDF scenario report to keep the conversation going.

Key Features

Why This Calculator

Purpose-built features that give you the insights you actually need.

Loan Details

Your loan and note rate

Transparent Methodology

How the Temporary Buydown math works

Calculate 2-1 and 3-2-1 buydown costs, reduced payments, and required seller credit

Industry Standards We Follow

  • Payments amortized at each reduced rate over the full term
  • Buydown cost equals the sum of payment differences (industry-standard escrow funding)

Key Variables in Our Calculation

  • monthlyRate
    Monthly note rate
  • termMonths
    Term in months
  • fullPayment
    P&I at the full note rate
  • yr1MonthlyRate
    Year 1 reduced monthly rate
  • yr2MonthlyRate
    Year 2 reduced monthly rate (note rate for a 1-0)
  • yr3MonthlyRate
    Year 3 reduced monthly rate (note rate unless 3-2-1)
  • yr1Payment
    P&I during year 1
  • yr2Payment
    P&I during year 2
Pro Tips

Expert Insights

Get the most out of your calculations with these professional tips

Start from the defaults

Defaults reflect current market conditions; change only what you know about your scenario.

Stress-test the result

Nudge the most uncertain input both directions to see how sturdy the conclusion is.

Put it on your site

Embed this mortgage calculator with your branding and capture the leads it generates.

Common Questions

Frequently Asked Questions

Everything you need to know about the Temporary Buydown Calculator

The cost equals the total payment relief: the sum of the monthly differences between the full note-rate payment and the reduced payments across the buydown years. The calculator shows this figure as the seller credit needed.

Unused escrow funds are typically credited against the loan principal at payoff, so the money is not lost.

Perfect For

Who Uses This Calculator

Loan Officers

Structure seller-paid buydowns and show borrowers the year-by-year payment path.

Listing Agents

Price a buydown credit as an alternative to a price cut that often costs the seller less.

Home Buyers

See exactly what your payment is in years one, two, and beyond.

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