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Huiracocha. Finance

Borrowing calculator

Mortgage Recast Calculator

Pay a lump sum and lower your monthly payment: compare a recast with prepaying or doing nothing.

Your mortgage

The recast

New monthly payment (principal & interest)

Balance before

Balance after

Months left

Fee paid back in

OptionMonthly paymentPaid offInterest left to paySaved
Do nothing—
Lump sum + recast
Lump sum, keep payment

What is a mortgage recast?

A recast (or re-amortization) is when you pay a large lump sum toward principal and your lender recalculates the monthly payment over the same remaining term at the same interest rate. Unlike a refinance, there is no new loan, no credit check and usually only a small fee (often $150–$500).

  • Recast: lower monthly payment, same payoff date. Good when you want breathing room in your budget.
  • Prepay without recasting: same payment, earlier payoff, and slightly more interest saved.
  • Eligibility: most conventional loans allow it, often with a minimum lump sum (commonly $5,000–$10,000). FHA, VA and USDA loans usually cannot be recast.

Ask your servicer for the exact fee, the minimum payment and how long the recast takes to process before you send the money.

Estimates for education only. Real results vary: investments can lose value, and past performance does not guarantee future results. This is not financial, tax or legal advice.

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