Moving up but tempted to keep the old house as a rental? What your mortgage allows, how lenders count rental income on your next loan, the insurance and tax changes, and the honest landlord math.
Mortgage Recast vs. Refinance: The Option Nobody Tells You About
Here’s a genuinely underused tool: suppose you come into a lump of money — a bonus, an inheritance, proceeds from selling your last house — and you want a lower monthly payment. Most people assume the only lever is refinancing. There’s a second lever almost nobody mentions, it costs a few hundred dollars instead of thousands, and it doesn’t touch your interest rate: the mortgage recast. (This one’s part of our Homeowner Library.)
What is a recast?
A recast (re-amortization) is simple: you make a large lump-sum principal payment, and your servicer recalculates your monthly payment based on the new, smaller balance — same interest rate, same payoff date, same loan. No application, no appraisal, no credit pull, no closing costs. Typically a flat processing fee in the low hundreds and a minimum lump sum (often around $5,000–$10,000, varies by servicer).
Compare that to what happens if you just make the same lump-sum extra principal payment without recasting: your loan pays off earlier, but your required payment stays exactly the same. Prepay = shorter loan. Recast = lower payment. Same dollars, different result — choose based on which problem you’re solving.
Recast vs. refinance: the honest comparison
| Recast | Refinance | |
|---|---|---|
| Interest rate | Unchanged | New market rate — better or worse |
| Cost | Small flat fee (~$150–$500 typical) | Full closing costs (often thousands) |
| Underwriting | None — no credit pull, no appraisal, no income docs | Full qualification |
| Requires | Lump-sum principal payment | Equity + qualifying |
| Changes payment | Yes — recalculated on new balance | Yes |
| Changes term/rate | No | Yes — that’s the point |
The decision rule falls out naturally:
- Rates are higher than your current rate (or your rate is great): recast wins, almost by default. You keep the rate you could never get back and still lower the payment. This is the scenario where recasting shines brightest — and the one where refinancing quietly costs people the most.
- Rates are meaningfully lower than yours: now refinancing is worth running — but run it honestly, including costs and the term-reset trap, with the true break-even math.
- You can’t qualify right now (income change, self-employment year, credit event): recast doesn’t care. There’s no underwriting.
Who can’t recast?
The big exclusion: government-backed loans. FHA, VA, and USDA loans generally can’t be recast — conventional loans are the natural home for it (servicer policies vary; jumbo often allows it too). If you’re on FHA/VA and need a lower payment, the conversation is different (refinance options, including streamline programs). Also, a recast never removes PMI by itself — though the same lump sum might qualify you for PMI cancellation at the same time. Worth doing both in one move.
The classic use case: buying before selling
Recasting quietly solves a common move-up problem: you buy the next house before the old one sells, take the new mortgage based on what you can carry, then the old house sells and hands you a pile of equity. Recast the new loan with those proceeds and the payment drops to what it would have been with that down payment — without refinancing at whatever rates became in the meantime. More on sequencing in selling and buying at the same time.
Frequently asked questions
What does a mortgage recast cost? Typically a flat servicer fee in the low hundreds, plus the lump-sum principal payment (minimums vary, often $5k–$10k). No closing costs, no appraisal.
Does a recast change my interest rate? No — that’s the feature. Same rate, same payoff date, lower payment on the smaller balance.
Can I recast an FHA or VA loan? Generally no. Recasting is mostly a conventional-loan tool; servicer policies vary, so ask.
Recast or refinance — which is better? If your rate is at or below today’s market, recast. If today’s rates are meaningfully lower than yours, compare a refi using true break-even math including all costs.
By Timothy Chase, Founder, 719 Lending — Colorado Springs mortgage broker. NMLS #868175 (Company NMLS #1601989). Equal Housing Opportunity. This article is educational only and is not financial, tax, or legal advice; program details and figures are general — confirm current. 719 Lending is not affiliated with or endorsed by any government agency. Last updated: July 2026.
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