Mortgage Recast: $600K Balance, 7%, $150K Lump Sum
Calculate the new monthly payment after a $150,000 lump-sum recast on a $600,000 mortgage at 7% with 30 years remaining.
How to use this tool
- Enter your current balance, rate, and the years remaining.
- Enter the lump sum you will apply to principal.
- Read your new monthly payment, monthly savings, and total interest saved.
- Compare against refinancing if rates have changed.
Find your significantly lower monthly mortgage payment after a $150,000 recast lump sum on a $600,000 balance at 7%.
Frequently asked questions
- How is a recast different from refinancing?
- A recast keeps your existing loan, rate, and payoff date and only lowers the payment after a lump-sum paydown. A refinance replaces the loan entirely with a new rate, term, and closing costs.
- Does a recast lower my interest rate?
- No. The rate stays the same. Your payment drops because the lump sum reduces the principal that the payment is calculated on, and you also pay less total interest.
- Is recasting worth it?
- It often is when you have a lump sum, a good existing rate you do not want to lose, and a lender that allows recasts for a small flat fee — much cheaper than refinancing's closing costs.