Recast vs refinance at a glance
The mechanics behind the recast column come straight from
Fannie Mae Servicing Guide C-1.2-01:
the servicer re-amortizes the new, lower balance over the remaining term at the existing
rate, and must not treat that re-amortization as a loan modification when deciding whether
you are eligible for a later modification. Fees and minimums vary
by servicer, so check our lender-by-lender fee table or
our guide to which lenders allow recasting.
When recasting wins
- Your rate is at or below the market. This is the 2026 reality for anyone
who locked a rate in the early 2020s. Refinancing would replace a below-market rate with a
higher one, so the only sane way to lower the payment is to keep the loan and shrink the
balance. That is precisely what a recast does.
- You want a lower payment cheaply. A recast fee of $150-$500 (often
around $250, and $0 at some servicers) is one to two orders of magnitude cheaper than
2-6% of your balance in refinance closing costs.
- You would not sail through underwriting. Recently self-employed, between
jobs, carrying new debt, or holding a lower credit score than when you bought: none of it
matters for a recast, because there is no application to fail.
- You plan to keep the loan. A recast breaks even almost immediately, so
it makes sense even if you might sell or refinance in a few years. It also does nothing
to block a future refinance if rates ever drop below yours.
If any of these fit, our guide to whether recasting is
worth it walks through the full decision, and
how mortgage recasting works covers the
request process step by step.
When refinancing wins
- Market rates are meaningfully below yours. A recast cannot touch your
rate. If lenders are offering rates well under what you pay, the monthly and lifetime
interest savings from a new rate can dwarf what a recast delivers, even after closing
costs.
- You want cash out. A recast only moves money into the loan. Pulling
equity out requires a cash-out refinance or a second lien.
- You want a different term. Switching from 30 years to 15, or resetting to
a fresh 30 for a lower payment, is a refinance-only move. A recast keeps your maturity
date fixed.
- You want to drop FHA mortgage insurance. FHA loans generally cannot be
recast at any servicer, and most carry mortgage insurance premiums for the life of the loan. Refinancing into
a conventional loan at 80% loan-to-value or below is the standard way out. See our
FHA recast page for the details.
The break-even math, explained
Break-even is the number of months it takes for monthly savings to repay the upfront cost.
The formula is the same for both moves: cost divided by monthly savings.
Refinance: suppose you refinance a $250,000 balance and closing costs come
to 3%, or $7,500. If the new rate saves you $200 a month, break-even is $7,500 divided by
$200, about 38 months. Sell or refinance again before month 38 and the deal lost you money.
This is why the size of the rate drop matters so much: a bigger drop means bigger monthly
savings and a shorter break-even.
Recast: suppose you owe $300,000 at 6.5% with 25 years left and apply a
$50,000 lump sum with a $250 fee. Your payment falls from about $2,026 to about $1,688,
saving roughly $338 a month. Break-even is $250 divided by $338: you are ahead before the
first new payment clears. Even a $500 fee against modest savings of $100 a month breaks even
in five months. In practice, a recast usually pays for itself in the first month or two,
which is why the fee is close to a non-issue in the decision.
One honest caveat: the recast comparison assumes you already have the lump sum and are
choosing what to do with it. If your real question is lump sum versus keeping your payment
the same to finish early, read recast vs extra
payments, because extra principal without a recast saves more total interest.
Why so much advice on this question is out of date
A lot of what ranks for "recast or refinance" was written in the 2021 rate era and never
updated. Those articles assume you can refinance into a rate around 3%, so they conclude
that refinancing usually beats recasting. That was often true then. It is mostly backwards
now.
In 2026, the typical existing borrower holds a rate at or below what lenders currently
offer. For that borrower, a refinance means paying 2-6% of the balance in closing costs to
move to a worse rate, while a recast lowers the payment for a few hundred dollars and keeps
the below-market rate intact. Same question, opposite answer, purely because the rate
environment flipped. Any article that compares the two without asking "what rate do you have
now versus what could you get today?" is answering a question from a different market.
For what it is worth, we have no stake in your answer: we do not sell refinances, originate
loans, or collect leads for anyone who does. This site makes its money from being a useful
calculator, not from steering you into a transaction. You can read more about that on our
about page.
The bottom line
Recast when your rate is worth keeping and a cheaper payment is the goal. Refinance when
today's rates beat yours by enough to cover the closing costs before you would sell or
refinance again, or when you need something a recast cannot do: cash out, a new term, or an
exit from FHA mortgage insurance. If you are still unsure, put your balance, rate, and lump
sum into the calculator above and let the break-even months make the
decision for you.