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Recasting a Jumbo Loan: Rules and Minimums

RD By RecastDesk editors · Updated October 2026 · 6 min read

Jumbo loans sit in an unusual position: they are more likely to be recastable than a conventional agency loan, and more likely to carry a minimum that ruins the arithmetic. The reason is the same in both directions — the loan is often held in portfolio by the bank that made it, so there is no pool ruleset to satisfy, but there is also no standard to restrain what the bank charges or requires.

The short answer

Ask two questions together, because on jumbo loans they decide the whole thing: what is the minimum principal reduction, and is the fee waived at relationship level. Minimums in the tens of thousands are normal, and private-bank clients often get the fee waived while still having to meet a substantial floor.

If your bank does not hold the loan and it has been securitised, treat the answer as no until proven otherwise — the pool rules usually do not contemplate re-amortisation.

Why portfolio loans behave differently

A portfolio lender keeps the loan on its own balance sheet. It sets its own servicing policy, its own minimum, its own fee and its own processing queue, and it can change any of them without asking an investor. That is why a jumbo recast at a private bank can be a five-day administrative action, while the same request on a securitised loan at a large servicer takes six weeks and may be declined outright.

The practical consequence: the answer depends on who owns your loan right now, not on who originated it. If your bank sold the servicing, the policy that applies is the buyer's, and jumbo servicing does get sold.

The minimum is the whole decision

On a $900,000 balance, a 10% minimum is $90,000 — a figure that turns a reasonable plan into a different conversation about liquidity. On the same loan, a flat $25,000 minimum is almost trivial by comparison.

This is why the jumbo minimum has to be established before any other work. Run the payment arithmetic only after you know the floor, or you will spend an afternoon optimising a recast that cannot be processed.

Fees and relationship pricing

Fees on jumbo recasts span a wider range than the $150 to $500 band typical of conforming loans. Some banks charge nothing for private clients; some charge several hundred; some fold the cost into a "servicing request" fee that does not use the word recast at all.

Ask specifically whether the fee is waived at your relationship tier, and whether it changes if you submit through your banker rather than the general servicing line. On a loan of this size, the fee is a rounding error compared with the minimum — but it is still worth one question.

Where jumbo recasts actually make sense

Two situations dominate. The first is a liquidity event — a business sale, a bonus, an inheritance — where a large lump sum can meaningfully reduce a large balance and the borrower wants the required payment down without disturbing a low fixed rate.

The second is a rate that is far below the market. If you refinanced into a 3% jumbo loan in 2021, no refinance today will beat it, and a recast is the only mechanism that converts cash into a lower payment without touching the rate. That is a genuinely strong case, and it is why jumbo recast demand persists even when refinance volumes are dead.

Against the alternatives

Refinancing a jumbo loan is expensive — closing costs scale with the balance, and jumbo underwriting is slower and fussier than conforming. Extra principal works exactly as it does anywhere else: no fee, no approval, shortens the loan, leaves the payment alone. A securities-based line or other asset-backed borrowing is a different tool for a different problem and should not be confused with reducing a mortgage payment.

The comparison is therefore narrower than it looks: for a jumbo borrower with cash and a good rate, the real choice is recast or extra principal, and the deciding question is whether the required payment matters.

Worth knowing: On a jumbo loan the fee is almost irrelevant and the minimum is almost everything. Establish the floor first; optimise afterwards.

What to put in the message

Ask your banker, not the general servicing line, and ask in writing: whether recasting is available on this loan, the minimum principal reduction, the fee and any relationship-tier waiver, the expected effective date, and who processes the request.

Then ask one more: whether the loan is currently held in portfolio. If it is not, the rest of the answers may be theoretical.

Frequently asked questions

The questions that come up most often.

Q
Can jumbo loans be recast?
Often yes, and more often than agency loans — because jumbo loans are frequently held in portfolio by the originating bank, which can set its own servicing policy without satisfying an investor. The same loan, once sold or securitised, may not be recastable at all. Ask whether the loan is currently in portfolio; that answer predicts the rest.
Q
What is the minimum principal reduction on a jumbo recast?
Larger than on conforming loans, and usually expressed in the tens of thousands or as a percentage of the balance. On a $900,000 loan a 10% requirement is $90,000. Because the minimum scales with the balance, it is the single most important number to establish before doing any other planning.
Q
Are jumbo recast fees higher?
The range is wider than the $150 to $500 typical of conforming loans. Some private banks waive the fee for relationship clients, others charge several hundred, and some bill it as a general servicing-request fee without using the word recast. On a loan this size the fee is minor compared with the minimum, but it is worth one question about relationship pricing.
Q
Does the bank's relationship tier matter?
Often yes. Private-bank and wealth clients are routinely offered fee waivers, faster processing, or a named contact who handles the request. The minimum principal requirement is usually less negotiable than the fee, so ask about both — the answer to one does not predict the other.
Q
Can I recast a jumbo loan I took out at a very low rate?
That is the strongest use case for a recast anywhere. If your rate is well below the current market, no refinance will improve it, and a recast converts cash into a lower required payment without touching the rate or the term. The alternative — extra principal — saves more interest but leaves the payment where it is.
Q
What if the servicing has been sold?
Then the new servicer's policy applies and your original bank cannot help. Jumbo servicing does get sold, and the buyer may or may not offer recasts. Before committing a lump sum to the plan, ask the current servicer directly — and confirm the answer in writing, because the answer can change again at the next transfer.