Most people know two ways to lower a mortgage payment: pay it down faster, or refinance into a new loan. There's a quieter third option a lot of borrowers have never heard of — partly because lenders don't advertise it: the recast.
What a recast actually does
A recast — sometimes called re-amortization — works like this. You make a large one-time payment toward your principal. Then your lender recalculates (re-amortizes) your remaining balance over your remaining term, at your same interest rate. The result is a lower monthly payment for the rest of the loan.
The key thing to understand: your rate doesn't change, and your payoff date doesn't change. Only your monthly payment goes down — because you're now spreading a smaller balance over the same remaining time.
Hypothetical example — illustrative rate, not a quote or offer of credit.
A quick illustration. Say you owe $300,000 at 6.5% with 28 years left, and you drop $50,000 on the principal. Without a recast, your balance falls but your required payment stays the same — you'd just finish early. With a recast, the lender resets the payment to amortize the new $250,000 balance over those 28 years, and your monthly drops accordingly. Same rate, same end date, smaller check each month.
Recast vs. refinance
This is the comparison that matters, because they solve different problems.
A refinance replaces your loan with a brand-new one: a new rate, possibly a new term, a new credit pull, an appraisal, and closing costs that typically run into the thousands. It makes sense when rates have dropped enough to beat your current rate, or when you want to change your loan in a bigger way.
A recast keeps your existing loan entirely. No new rate, no appraisal, no fresh underwriting, no stack of closing costs — usually just a modest fee. The trade-off: it can't lower your rate, because you're keeping the loan you already have.
So the deciding question is usually about your rate. If you're sitting on a low rate you'd hate to give up, a recast lets you lower your payment without surrendering it. If your current rate is high and today's rates are meaningfully lower, a refinance is probably the better tool.
When a recast tends to make sense
A few situations where borrowers reach for it:
- You've come into a lump sum — a bonus, an inheritance, proceeds from selling something — and you'd rather lower your monthly obligation than keep all of it liquid.
- You bought before you sold. If you purchased a new home without a sale contingency and then sell your old one, applying those proceeds and recasting is a common way to right-size the new payment.
- You have a good rate. As above: recasting protects a low rate while still easing the monthly number.
It's less useful if your goal is to pay the loan off faster — for that, just make extra principal payments and skip the recast; your payment stays the same but you finish sooner. And it's the wrong move if you'd genuinely benefit more from keeping the cash invested or accessible.
The fine print to check
Recasting isn't universal, and the rules live with your loan servicer, so confirm a few things before you count on it:
- Loan type. Conventional loans — the kind backed by Fannie Mae and Freddie Mac — generally allow recasting. Government loans (FHA, VA, and USDA) typically do not. Jumbo and other loans vary by servicer.
- Minimum payment. Most servicers require a minimum lump sum to recast, often somewhere in the low thousands.
- The fee. There's usually a one-time recast fee — frequently a few hundred dollars — which is still a fraction of typical refinance closing costs.
- It's a request, not a right. Even when your loan is eligible, you generally have to ask your servicer to recast; it doesn't happen automatically when you make a big payment.
The takeaway
A recast is the low-cost, low-drama way to lower a mortgage payment without refinancing: drop a lump sum on the principal, keep your rate and your payoff date, and watch the monthly payment shrink. It shines when you've got cash on hand and a rate worth protecting. Just confirm with your servicer that your loan qualifies, what the minimum is, and what the fee runs — because that part depends entirely on who holds your loan.
Eligibility, minimums, and fees are set by your loan servicer and vary by loan type. Treat the figures here as typical ranges, not promises, and confirm the details with your servicer before making a large payment.