What Is a Mortgage Recast?

How Mortgage Recasting Works

Every amortizing mortgage payment is calculated from three inputs: principal balance, interest rate, and remaining number of payments. Recasting changes only the first input. You send a lump sum that reduces principal, request a recast under the servicer's procedures, and pay any administrative charge. Once approved, the servicer prepares a new amortization schedule based on the lower balance.

The transaction is not a new loan. There is typically no appraisal, title work, or full income underwriting, and the mortgage keeps its original note rate. The legal maturity date also remains in place. That combination makes recasting especially useful for a homeowner who already has an attractive fixed rate but wants less pressure on the monthly budget.

An extra principal payment by itself does not normally reduce the amount due next month. Without a formal recast, the scheduled payment continues and the loan pays off sooner. With a recast, the required payment drops; you can still voluntarily pay the old amount if your goal later shifts toward an earlier payoff.

What a Recast Costs and How Long It Takes

Servicers commonly charge a modest administrative fee, often in the range of $150 to $500. The required lump sum is separate and usually much larger. A lender may set a flat minimum, require a percentage of the unpaid balance, or count only principal received within a particular period. Because there is no universal rule, get written instructions before transferring money.

Processing often takes several weeks and may cross one or two statement cycles. Continue making the currently billed payment until the servicer confirms the effective date and new amount. Ask how escrow will appear on the revised statement: recasting reduces principal and interest, not property taxes or insurance, so the total monthly draft will not fall by exactly the same amount.

Recast vs. Refinance (Short Answer)

A recast preserves the loan and its rate; a refinance replaces the loan. Recasting generally involves a smaller fee and less documentation, but it cannot secure a lower market rate, change a 30-year loan into a 15-year loan, add or remove a borrower, or provide cash out. Refinancing can make those changes, though it usually brings underwriting, a credit inquiry, closing costs, and a new amortization schedule.

If your current rate is favorable and you have cash available for principal, a recast may be the simpler payment-reduction tool. If rates have dropped or the loan itself needs to change, compare a formal refinance Loan Estimate. See the focused mortgage recast vs refinance guide for the decision factors.

Who Should Consider a Recast

A likely candidate has an eligible conventional mortgage, a competitive existing interest rate, a sizable amount of cash, and a desire to lower required monthly expenses. Common situations include applying proceeds after a delayed sale of another property, using part of an inheritance, or directing a large work bonus toward home equity. Recasting can also create breathing room before retirement while leaving the original payoff date intact.

It is less compelling when the lump sum would empty an emergency fund, when higher-interest debt remains outstanding, or when the home may be sold soon. It also does not create liquidity: once cash becomes home equity, accessing it later may require a sale, home-equity product, or refinance. Borrowers seeking the lowest total interest might prefer to make the principal payment and continue the old schedule without recasting.

Before acting, confirm eligibility with the company that services the loan, request its current terms, and compare the projected savings with the fee and other uses for the cash. A calculator can clarify the amortization, but tax, investment, and household-risk decisions may warrant advice from qualified professionals.