Mortgage recast: how to lower your payment with a lump sum, without refinancing

What a mortgage recast is

The formal name is re-amortization. Normally, when you pay extra principal, your required payment does not change. You simply reach a zero balance sooner. With a recast, the servicer takes the new, lower balance and spreads it over the months that remain, at your existing interest rate. The result is a lower required payment for the rest of the loan.

There is no new loan, so there is no new application, appraisal, title work, or closing. Fannie Mae's Servicing Guide describes the process for conventional loans: when a borrower asks to re-amortize after a substantial principal curtailment, the servicer documents the change with a short agreement, and Fannie Mae does not treat it as a loan modification. It is an administrative step, not a transaction.

Typical recast requirements

A recast is something a servicer may offer, not something a borrower is entitled to, and the terms vary from one servicer to the next. Described generally, this is what most borrowers run into:

• A minimum lump sum, stated as a dollar amount or a share of the balance
• A modest processing fee
• A loan that is current, with a clean recent payment history
• A conventional or portfolio loan. Government-backed loans (FHA, VA, and USDA) generally are not recast by servicers, so those borrowers usually look at extra payments or a refinance instead
• Sign-off from the investor that owns the loan, if it has been sold

Recast vs refinance vs paying extra vs biweekly mortgage payments

All four approaches attack the same balance, but they do different jobs. The example below assumes a $400,000 30-year loan at an example rate of 6.5%, one year in, with a balance of about $395,500 and a principal and interest payment of $2,528. In the middle three rows the borrower has $100,000 to put toward the loan. The rate is a round illustration, not a quote.

How to read that table

Paying the lump sum without a recast saves the most interest by far, because you keep making the big payment against a small balance. The trade-off is that your required payment never drops. If your goal is to pay off the mortgage early and your budget is comfortable, skip the recast.

The recast is for cash flow. It drops the required payment by about $639 a month in this example while keeping the payoff date where it was. You can still pay extra whenever you like, so a recast gives you the lower obligation and leaves the faster payoff as an option instead of a requirement.

A refinance only beats a recast when the new rate is meaningfully lower than your current one. If your existing rate is at or below today's market, refinancing just to lower the payment means paying closing costs to get roughly what a recast delivers for a small fee. Our guide on when to refinance covers the break-even math.

Biweekly mortgage payments work because 26 half-payments equal 13 full payments a year. It is a disciplined way to pay off a mortgage early without a lump sum. Make sure your servicer applies the extra to principal and does not charge for the service. You can get the same effect by adding one-twelfth of a payment to each monthly payment.

The best use case: you bought before you sold

The classic recast candidate bought the new house before selling the old one. Maybe you used a bridge loan, or put down less than you wanted to so the offer could go in without a home-sale contingency. Your new mortgage is larger than you planned. Two months later the old house in Cary or Neenah closes, and you are holding a six-figure check.

Put the proceeds against the new loan, ask for a recast, and your payment lands close to where it would have been if you had sold first. You kept your original rate, you paid no second set of closing costs, and you never had to write a contingent offer. Our guide to buying before you sell with a bridge loan explains the front half of that plan.

Other good candidates: an inheritance, a business sale, a large bonus, or a retiree who wants a smaller required payment going into a fixed income.

Why in-house servicing makes this an easy ask

A recast request goes to whoever services your loan. With a national servicer that can mean a phone tree, a form, and a wait. Home State Bank services its loans in-house, so the person you ask is a person at the bank that holds your file, in Crystal Lake or Appleton.

If you are planning a buy-first move, raise the recast question before you close on the new loan, not after. Knowing up front whether the option exists for your loan type, and what it takes, lets you plan the purchase, the sale, and the payment you will end up with.