About MortgageRecast.net
This is not financial advice.
MortgageRecast.net explains what happens to a mortgage payment when principal is reduced and the remaining balance is re-amortized. Its focus is the difference between a smaller required payment and repaying the same debt faster.
An explanation, not a loan service
This site is not a lender or mortgage servicer. It does not process recast applications, review account documents or make eligibility decisions. The calculator is an educational model, not an approval or personal recommendation.
Use your servicer's written terms for account-specific questions. No example on this site represents an offer available to a particular borrower.
A calculation you can check
The home page states the payment formula and the assumptions used. The schedule guide explains how interest and principal are separated month by month. Our examples label their inputs so the arithmetic can be reproduced.
The standard recast description is checked against Fannie Mae's servicing guidance. That source describes loans covered by its guidance; it is not a rule for every mortgage in the United States.
Tell us when something needs correcting
Use the contact page to report a formula issue, unclear sentence or broken page. Include the page address and non-identifying example inputs. Do not send mortgage statements, account numbers or other financial records.
Last content review: November 6, 2026.
Method and transparency
Last updated: 6 November 2026. Local technical preview only. This is not financial advice.