A mortgage recast is when you make a large lump-sum payment toward your loan principal, and your lender recalculates your monthly payment based on the smaller remaining balance. Your interest rate and loan term stay exactly the same. The only thing that changes is your monthly payment, which drops because you now owe less. It’s a simple, low-cost way to reduce your housing costs if you come into a chunk of cash.
How a Recast Works
The concept is straightforward. Say you have 20 years left on your mortgage at a fixed rate, and you put $50,000 toward the principal. Your lender takes that new, lower balance and reamortizes it, meaning they recalculate what your monthly payments need to be to pay off the remaining balance over those same 20 years at the same interest rate. Because you owe less money, each monthly payment shrinks.
This is different from simply making an extra principal payment. If you send your lender an extra $50,000 without requesting a recast, your balance drops and you’ll pay off the loan sooner, but your required monthly payment stays the same. A recast formally resets that monthly obligation downward, which frees up cash flow every month going forward.
The Step-by-Step Process
Recasting is simpler than most mortgage transactions. Here’s what to expect:
- Check eligibility. Call your lender and confirm your loan qualifies for a recast. Not all lenders offer it, and not all loan types are eligible.
- Make the lump-sum payment. You’ll pay a large amount directly toward your principal. Many lenders require a minimum of $5,000 or $10,000, though some have no minimum at all.
- Your lender recalculates. After applying the payment, the lender reamortizes the loan and sends you a new payment schedule reflecting the lower monthly amount.
- Pay the fee. If your lender charges a recasting fee, expect it to fall between $150 and $500.
There’s no appraisal, no credit check, no mountain of paperwork. The whole process is an administrative adjustment on your existing loan.
Which Loans Qualify
Most conventional (non-government) mortgages are eligible for recasting, though your lender has to offer the option. Government-backed loans, including FHA, VA, and USDA mortgages, generally do not allow recasting. If you have one of those loan types, refinancing is typically your only path to a lower payment.
Your loan also needs to be in good standing. If you’re behind on payments or in forbearance, you won’t be able to recast until you’re current. Beyond that, the requirements are minimal compared to most mortgage changes.
What It Costs
The fees are negligible by mortgage standards. A recast typically carries an administrative fee of a few hundred dollars, with most lenders charging between $150 and $500. Compare that to refinancing, where closing costs run 2% to 5% of the total loan amount. On a $300,000 mortgage, that’s $6,000 to $15,000 in refinancing costs versus a few hundred dollars for a recast.
The real cost is the lump sum itself. That money is now locked in your home’s equity. You can’t easily access it again without selling the house or taking out a home equity loan. If you might need that cash for emergencies, investments, or other goals, tying it up in your mortgage is a trade-off worth thinking through carefully.
How It Differs From Refinancing
Recasting and refinancing both lower your monthly payment, but they do it in fundamentally different ways. A recast keeps your existing loan intact: same lender, same rate, same term. You’re just paying down the balance and having the payment recalculated. A refinance replaces your entire mortgage with a brand-new loan, potentially at a different interest rate, with a new lender, and often with a reset loan term.
Refinancing makes sense when interest rates have dropped significantly below your current rate, because you can save on both the monthly payment and total interest over the life of the loan. A recast makes sense when you’re already happy with your rate and just want a lower payment without the hassle and expense of a full refinance. Refinancing requires a credit check, an appraisal in most cases, and weeks of processing. A recast skips all of that.
When a Recast Makes Sense
The most common scenario is someone who receives a large sum of money and wants to put it toward their mortgage. Maybe you sold a previous home and the proceeds came through after you’d already closed on your new one. Maybe you received an inheritance, a bonus, or proceeds from selling a business. In all of these cases, a recast lets you convert that windfall into permanent monthly savings without touching your interest rate.
Recasting is especially appealing if you locked in a low interest rate in recent years. Refinancing would mean giving up that rate and taking whatever the market offers today, which could be significantly higher. A recast preserves your existing rate while still lowering your payment.
It’s less useful if your goal is to pay off the mortgage faster. Since a recast keeps the same loan term, it doesn’t shorten your payoff timeline the way extra principal payments (without recasting) would. You’ll pay less total interest because the balance is lower, but the term stays the same. If an earlier payoff date matters more to you than a lower monthly payment, simply making extra payments without recasting may be the better move.
Impact on Total Interest
Because a recast reduces your outstanding balance, you will pay less total interest over the life of the loan. Every month after the recast, interest accrues on a smaller principal amount. The savings depend on how large your lump-sum payment is, how much time is left on the loan, and your interest rate. On a $300,000 balance at 6% with 25 years remaining, a $50,000 lump sum followed by a recast would save tens of thousands of dollars in interest over the remaining term.
Keep in mind that making the same $50,000 extra payment without recasting would save you even more in total interest, because your monthly payment would stay higher and you’d pay off the loan sooner. The recast trade-off is that you get immediate monthly cash flow relief in exchange for a slightly longer payoff timeline compared to just throwing extra money at the principal.