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Mortgage Recast vs Refinance: What a $50,000 Lump Sum Does

By Smart Budget Sheets November 10, 2026
Mortgage recast vs refinance with a $50,000 lump sum.

If you come into a lump sum, such as a bonus, inheritance or home sale proceeds, a mortgage recast can lower your payment without a new loan. Here is how it compares with refinancing.

The example

$300,000 balance, 6.5% rate, 25 years left. Payment: about $2,026 a month (principal and interest).

Option What happens New payment Typical cost
Recast Pay $50,000, lender re-amortizes $250,000 over the same 25 years at 6.5% about $1,688 fee often $150-$500
Refinance to 5.75%, 30 years New loan for $300,000 about $1,751 closing costs, often 2-5%
Refinance to 5.75%, 25 years New loan for $300,000 about $1,887 closing costs, often 2-5%

Recast: good to know

  • The rate stays the same; only the payment drops.
  • Not every loan can be recast. Many conventional loans allow it; FHA, VA and USDA loans usually don’t.
  • Lenders often require a minimum lump sum, such as $5,000-$10,000.
  • Total interest over the remaining term falls from about $307,700 to about $256,400 in this example.

Refinance: good to know

  • It makes sense when the new rate is low enough that savings cover closing costs within a few years (the break-even point).
  • Extending to a new 30-year term lowers the payment but can add interest over the life of the loan.

A third option

Keep the $50,000 as a lump-sum prepayment without recasting. The payment stays at $2,026, but the loan is paid off years earlier. Recasting trades that speed for a lower monthly bill.

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General information, not financial advice. Figures are rounded examples.

#personalfinance #budgeting #mortgage
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