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Refinance Decision Calculator

This calculator turns a refinance comparison into a decision score instead of stopping at monthly savings.

Decision report included

Review the decision summary, key metrics, assumptions, and action items, then create a printable report for a lender, broker, household, or client discussion.

Use the report to document the scenario, explain the tradeoff, and agree on the next action.

Enter your scenario.

Refinance verdict

Strong fit

Expected net saving over your holding period is $10,474, with a break-even point of 4 months.

Decision index

Healthy
82of 100

Key metric comparison

Monthly savings$186
Break-even month4 months
1-year savings$1,535
3-year savings$6,005
5-year savings$10,474

Monthly savings

Healthy

$186

Difference between current and new estimated monthly repayments.

Break-even month

Watch

4 months

How long it takes savings and cashback to offset switching fees.

1-year savings

Healthy

$1,535

Net result after fees and cashback over one year.

3-year savings

Healthy

$6,005

Net result after fees and cashback over three years.

5-year savings

Healthy

$10,474

Net result after fees and cashback over five years.

10-year savings

Healthy

$10,474

Net result over ten years or the selected holding period, whichever is shorter.

Review the assumptions behind the result.

  • Both loans use the same remaining term for the core repayment comparison.
  • Switching fees and cashback are treated as upfront net costs or benefits.
  • Savings windows are capped by the selected holding period.

Turn the output into a practical next step.

  • Compare the break-even month with how long you expect to keep the loan.
  • Cashback can improve short-term outcomes but should not hide a weak long-term rate.
  • Use the report when comparing lender offers side by side.

Compare another decision before you commit.

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