Mortgage Recast vs Refinance Calculator

Compare two ways to lower a mortgage payment: a recast with a lump sum, or a refinance.

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Amounts in dollars.
Lowest payment
Current payment
Recast
Refinance
Remaining interest
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Recast vs Refinance

A recast (re-amortization) keeps your rate and payoff date: you pay a lump sum, and the lender recalculates the payment on the lower balance, usually for a small fee. A refinance replaces the loan with a new one at a new rate and term, with full closing costs.

Recast payment = PMT(current rate, months left, balance − lump sum)

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Tips

Not all loans can be recast (FHA, VA and USDA loans usually can’t). A recast makes sense when rates are higher now than your current rate; a refinance when rates have dropped enough to cover the closing costs.