How to Recast a Mortgage, Step by Step
Recasting isn't complicated, but the order matters — money in the wrong place or a request made too early can stall the whole thing. Follow this sequence and you'll go from lump sum to lower payment cleanly, usually inside two billing cycles.
Before you start: know your number
Open the recast calculator and enter your balance, rate, and the lump sum you're considering. You'll see the new payment, the interest saved, and how quickly any fee pays for itself. Walking into the process knowing the target makes every later step a simple confirmation rather than a guess.
The five steps
Step 1 — Confirm your loan can be recast
Call your servicer or check your online account. Ask two things: is my loan type eligible, and what's the minimum principal reduction? Conventional fixed-rate loans usually qualify; FHA, VA and USDA loans generally don't. If yours isn't eligible, the "pay down and keep paying" path still shortens the loan — the calculator's comparison table shows that outcome.
Step 2 — Set the money aside and keep your cushion
Don't drain your emergency fund to hit a bigger payment. Decide how much you can commit while keeping several months of expenses liquid. A recast lowers your payment but ties up the cash permanently in home equity, which is far harder to access than a savings account.
Step 3 — Make the principal-only payment
Send the lump sum and clearly designate it "principal only." This is the step people get wrong: an unmarked payment can be applied to future installments instead of reducing the balance. Use your servicer's principal-payment option online, or note it explicitly on a check, and keep the confirmation.
Step 4 — Request the recast in writing
Once the payment posts, ask the servicer to re-amortize (recast) the loan. Get the fee and any required form in writing. Some lenders need a signed authorization — return it quickly so processing isn't delayed.
Step 5 — Verify on your next statement
When the new statement arrives, confirm three things: the balance dropped by your payment, the money was applied to principal, and the new lower payment is in effect. If anything looks off, contact the servicer immediately with your payment confirmation in hand.
Typical timeline
| Stage | What happens | Rough timing |
|---|---|---|
| Principal payment posts | Balance drops | 1–3 business days |
| Recast request submitted | Servicer confirms fee & form | Same week |
| Re-amortization processed | New payment calculated | Days to a few weeks |
| New payment begins | Shown on statement | 1–2 billing cycles |
Your servicer call script
Reading from a short script keeps the call efficient and makes sure you leave with every answer you need:
"I'd like to make a large principal-only payment and then recast — re-amortize — my mortgage. Can you confirm my loan is eligible? What's the minimum principal reduction, and what's the exact recast fee? Do I make the payment first or submit the request first? And which statement will show my new payment?"
A quick checklist
- ☐ Confirmed loan is eligible to recast
- ☐ Learned the minimum principal and the fee
- ☐ Kept an emergency cushion after the lump sum
- ☐ Made the payment marked "principal only"
- ☐ Saved the payment confirmation
- ☐ Submitted the recast request and any form
- ☐ Verified the new payment on the next statement
Run your numbers first
See your new payment, interest saved, and whether investing the cash might beat recasting.
After the recast: audit your next statement
The job isn't finished when you hang up the phone. Servicers occasionally misapply a large payment, and catching a mistake on the first statement is far easier than unwinding it six months later. When the next statement arrives, run a quick three-point check.
- Balance. It should have fallen by exactly your lump sum. If it dropped by less, part of your money may have landed on interest or a future installment instead of principal.
- Payment. The new, lower principal-and-interest figure should be in force. Still seeing the old amount? The recast may not have processed — call with your request date and confirmation number.
- Rate and maturity date. Both must be unchanged. A recast never resets them; if either moved, something was handled incorrectly.
Keep three documents together: the payment confirmation, the recast agreement, and the first corrected statement. If a dispute ever surfaces, those are all the proof you need that the money hit principal and the re-amortization was authorized.
What recasting will not change
Set expectations before you commit. Your escrow — property taxes, homeowners insurance, and any PMI or HOA — is untouched, so your total bill falls only by the principal-and-interest reduction. And unless you keep paying the old, higher amount, your payoff date stays exactly where it was.
Two things worth checking before you start: whether your loan type can be recast at all, and what the fee and minimum will run.
Common questions
How soon does the lower payment start?
Most recasts take effect within one to two billing cycles after your principal payment posts and the request is processed. Ask which statement will reflect the change so you know when to look.
What if the money was applied to interest, not principal?
Call immediately with your payment confirmation. A payment marked "principal only" should reduce the balance directly; if it didn't, ask them to correct the application before processing the recast.
Do I need good credit to recast?
No. Unlike refinancing, recasting involves no credit check, no appraisal, and no new underwriting — which is exactly why it's fast and inexpensive.
Do I pay the lump sum before or after requesting the recast?
In most cases the principal payment must post first, then you request re-amortization. Confirm the order with your servicer, since a few handle it differently.
How do I make sure the money goes to principal?
Use the "principal only" or "additional principal" option in your online account, or write it clearly on a check. Then verify on the next statement that the balance dropped by that amount.
What if my new payment doesn't show up?
Contact your servicer with your payment confirmation and the recast request date. Processing can take a couple of billing cycles, but if it's overdue, follow up promptly.
Can I recast again later?
Often yes, though some servicers limit how many times or require a waiting period. Ask about their policy if you expect future windfalls.
This guide is general education, not personalized advice. Steps and timing vary by servicer — confirm the process with your lender before sending money.