Does a mortgage recast change my interest rate?
No. A standard mortgage recast keeps the existing interest rate and remaining loan term. The servicer recalculates principal and interest using the lower unpaid balance.
Calculators · United States
Free mortgage recast calculator and educational guides for homeowners
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RecastMate is an independent educational website that helps U.S. homeowners understand how a mortgage recast may change their required principal-and-interest

RecastMate provides a free calculator that estimates a new monthly payment, payoff date, and interest savings after a homeowner makes a lump-sum principal payment on a mortgage. The calculator keeps user data in the browser and does not transmit or save mortgage information.
The site also offers educational guides explaining mortgage recasting in plain English. These guides help homeowners understand the differences between recasting and other strategies like making extra principal payments, when recasting may be beneficial, and how to prepare questions for their mortgage servicer.
RecastMate is maintained by an editorial team that focuses on practical mortgage education, accuracy, clarity, and reader privacy. The site does not originate loans, approve recast requests, or provide financial, legal, or tax advice.
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No. A standard mortgage recast keeps the existing interest rate and remaining loan term. The servicer recalculates principal and interest using the lower unpaid balance.
No. The recast itself normally keeps the scheduled payoff date unchanged and lowers the required principal-and-interest payment. Paying more than the new required amount can still accelerate payoff.
There is no universal minimum. The required principal curtailment depends on the servicer, investor, loan type, and current policy. Confirm the amount before sending funds.
No. Eligibility depends on the loan owner, program, servicer, payment history, and current policy. Many conventional loans may qualify; government-backed loans are commonly excluded from voluntary recast programs.
They serve different goals. Both reduce principal, but a recast lowers the required payment. Making extra principal payments while keeping the old payment generally pays the loan off faster.
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