Mortgage Recast Calculator – Calculate New Monthly Payment After Lump Sum
Calculate your mortgage savings effortlessly with our easy-to-use Recast Mortgage Calculator.
Calculate Your New Mortgage PaymentRecast Mortgage Calculator: Lower Your Loan Payments Easily
"A Mortgage Recast Calculator helps homeowners estimate potential savings and new payment schedules after making a large principal payment."
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Loan Details
Your Recast Results
✓ Net saving: $5,949.93Remaining Interest — Before vs. After
Recast saves $56,199.93 (13%) over the remaining 324 months.
| Original loan | $400,000.00 |
| Rate / Term | 6.500% / 30yrs |
| Original EMI | $2,528.27 |
| Months paid | 36 (3y 0m) |
| Principal paid | $399,999.96 |
| Interest paid | $76,686.80 |
| Outstanding balance | $385,668.97 |
| Remaining | 27y 0m (324 months) |
| Lump-sum paid | $50,000.00 |
| Recast fee | $250.00 |
| New balance | $335,668.97 |
| EMI before | $2,528.27 |
| EMI after | $2,200.49 |
| Monthly saving | $327.78 |
| Interest saved | $56,199.93 (13%) |
| Net gain | $5,949.93 |
Full Breakdown & Break-even
Total outflow, break-even months, and all detailed figures
| Monthly rate | 0.541667% |
| Total interest — without recast | $433,491.30 |
| Total interest — with recast | $377,291.37 |
| Total outflow — without recast | $819,159.48 |
| Total outflow — with recast (inc. lump + fee) | $763,208.76 |
| Net financial gain | $5,949.93 |
| Break-even period | 154 months (12y 10m) |
| Annual saving | $3,933.33/year |
☰ Amortization Schedule
Month-by-month table — grouped by year with subtotals and calendar dates
| # | Date | Payment | Principal | Interest | Balance |
|---|---|---|---|---|---|
| YEAR 9 | Principal: $6,536.06 Interest: $19,869.89 Total: $26,405.88 | |||||
| 97 | Apr 2031 | $2,200.49 | $528.63 | $1,671.86 | $308,122.55 |
| 98 | May 2031 | $2,200.49 | $531.50 | $1,669.00 | $307,591.05 |
| 99 | Jun 2031 | $2,200.49 | $534.38 | $1,666.12 | $307,056.67 |
| 100 | Jul 2031 | $2,200.49 | $537.27 | $1,663.22 | $306,519.40 |
| 101 | Aug 2031 | $2,200.49 | $540.18 | $1,660.31 | $305,979.22 |
| 102 | Sep 2031 | $2,200.49 | $543.11 | $1,657.39 | $305,436.11 |
| 103 | Oct 2031 | $2,200.49 | $546.05 | $1,654.45 | $304,890.06 |
| 104 | Nov 2031 | $2,200.49 | $549.01 | $1,651.49 | $304,341.06 |
| 105 | Dec 2031 | $2,200.49 | $551.98 | $1,648.51 | $303,789.08 |
| 106 | Jan 2032 | $2,200.49 | $554.97 | $1,645.52 | $303,234.11 |
| 107 | Feb 2032 | $2,200.49 | $557.98 | $1,642.52 | $302,676.13 |
| 108 | Mar 2032 | $2,200.49 | $561.00 | $1,639.50 | $302,115.13 |
| YEAR 10 | Principal: $6,973.78 Interest: $19,432.16 Total: $26,405.88 | |||||
| 109 | Apr 2032 | $2,200.49 | $564.04 | $1,636.46 | $301,551.09 |
| 110 | May 2032 | $2,200.49 | $567.09 | $1,633.40 | $300,984.00 |
| 111 | Jun 2032 | $2,200.49 | $570.16 | $1,630.33 | $300,413.83 |
| 112 | Jul 2032 | $2,200.49 | $573.25 | $1,627.24 | $299,840.58 |
| 113 | Aug 2032 | $2,200.49 | $576.36 | $1,624.14 | $299,264.22 |
| 114 | Sep 2032 | $2,200.49 | $579.48 | $1,621.01 | $298,684.74 |
| 115 | Oct 2032 | $2,200.49 | $582.62 | $1,617.88 | $298,102.12 |
| 116 | Nov 2032 | $2,200.49 | $585.77 | $1,614.72 | $297,516.35 |
| 117 | Dec 2032 | $2,200.49 | $588.95 | $1,611.55 | $296,927.40 |
| 118 | Jan 2033 | $2,200.49 | $592.14 | $1,608.36 | $296,335.26 |
| 119 | Feb 2033 | $2,200.49 | $595.35 | $1,605.15 | $295,739.92 |
| 120 | Mar 2033 | $2,200.49 | $598.57 | $1,601.92 | $295,141.35 |
| YEAR 11 | Principal: $7,440.83 Interest: $18,965.12 Total: $26,405.88 | |||||
| 121 | Apr 2033 | $2,200.49 | $601.81 | $1,598.68 | $294,539.54 |
| 122 | May 2033 | $2,200.49 | $605.07 | $1,595.42 | $293,934.46 |
| 123 | Jun 2033 | $2,200.49 | $608.35 | $1,592.15 | $293,326.11 |
| 124 | Jul 2033 | $2,200.49 | $611.64 | $1,588.85 | $292,714.47 |
| 125 | Aug 2033 | $2,200.49 | $614.96 | $1,585.54 | $292,099.51 |
| 126 | Sep 2033 | $2,200.49 | $618.29 | $1,582.21 | $291,481.22 |
| 127 | Oct 2033 | $2,200.49 | $621.64 | $1,578.86 | $290,859.59 |
| 128 | Nov 2033 | $2,200.49 | $625.01 | $1,575.49 | $290,234.58 |
| 129 | Dec 2033 | $2,200.49 | $628.39 | $1,572.10 | $289,606.19 |
| 130 | Jan 2034 | $2,200.49 | $631.79 | $1,568.70 | $288,974.39 |
| 131 | Feb 2034 | $2,200.49 | $635.22 | $1,565.28 | $288,339.18 |
| 132 | Mar 2034 | $2,200.49 | $638.66 | $1,561.84 | $287,700.52 |
| YEAR 12 | Principal: $7,939.16 Interest: $18,466.79 Total: $26,405.88 | |||||
| 133 | Apr 2034 | $2,200.49 | $642.12 | $1,558.38 | $287,058.40 |
| 134 | May 2034 | $2,200.49 | $645.59 | $1,554.90 | $286,412.81 |
| 135 | Jun 2034 | $2,200.49 | $649.09 | $1,551.40 | $285,763.72 |
| 136 | Jul 2034 | $2,200.49 | $652.61 | $1,547.89 | $285,111.11 |
| 137 | Aug 2034 | $2,200.49 | $656.14 | $1,544.35 | $284,454.97 |
| 138 | Sep 2034 | $2,200.49 | $659.70 | $1,540.80 | $283,795.27 |
| 139 | Oct 2034 | $2,200.49 | $663.27 | $1,537.22 | $283,132.00 |
| 140 | Nov 2034 | $2,200.49 | $666.86 | $1,533.63 | $282,465.14 |
| 141 | Dec 2034 | $2,200.49 | $670.48 | $1,530.02 | $281,794.66 |
| 142 | Jan 2035 | $2,200.49 | $674.11 | $1,526.39 | $281,120.55 |
| 143 | Feb 2035 | $2,200.49 | $677.76 | $1,522.74 | $280,442.80 |
| 144 | Mar 2035 | $2,200.49 | $681.43 | $1,519.07 | $279,761.37 |
| YEAR 13 | Principal: $8,470.85 Interest: $17,935.08 Total: $26,405.88 | |||||
| 145 | Apr 2035 | $2,200.49 | $685.12 | $1,515.37 | $279,076.25 |
| 146 | May 2035 | $2,200.49 | $688.83 | $1,511.66 | $278,387.41 |
| 147 | Jun 2035 | $2,200.49 | $692.56 | $1,507.93 | $277,694.85 |
| 148 | Jul 2035 | $2,200.49 | $696.31 | $1,504.18 | $276,998.54 |
| 149 | Aug 2035 | $2,200.49 | $700.09 | $1,500.41 | $276,298.45 |
| 150 | Sep 2035 | $2,200.49 | $703.88 | $1,496.62 | $275,594.57 |
| 151 | Oct 2035 | $2,200.49 | $707.69 | $1,492.80 | $274,886.88 |
| 152 | Nov 2035 | $2,200.49 | $711.52 | $1,488.97 | $274,175.36 |
| 153 | Dec 2035 | $2,200.49 | $715.38 | $1,485.12 | $273,459.98 |
| 154 | Jan 2036 | $2,200.49 | $719.25 | $1,481.24 | $272,740.73 |
| 155 | Feb 2036 | $2,200.49 | $723.15 | $1,477.35 | $272,017.58 |
| 156 | Mar 2036 | $2,200.49 | $727.07 | $1,473.43 | $271,290.51 |
| — | Page 2 total | $132,029.40 | $37,360.68 | $94,669.04 | — |
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Our mortgage recast calculator helps homeowners easily estimate their new, lower monthly payments after making a large lump sum payment toward their existing loan balance. Using a recast calculator, you can plan your mortgage strategy more effectively and understand how a one-time payment impacts your loan term and overall costs.
What is Mortgage Recast?
In banking, a mortgage is a borrower's loan to purchase land, a plot, a house, or other real estate. The Recast Mortgage is a process where large payments are made to reduce the principal amount, so the lender re-amortizes the loan with lower monthly repayments based on the new balance.

Though the loan is recast, the interest doesn't change and remains fixed. The loan term also stays the same. FHA, USDA, and VA loans typically do not support standard recasting, though lenders may make exceptions. For more details, see the Consumer Financial Protection Bureau.
How a Mortgage Recast Works
The borrower pays a lump sum toward the principal. The lender then re-amortizes the remaining balance into new monthly payments over the same remaining term. The new schedule includes updated principal, interest, and balance for every month ahead.
How to Use This Calculator
Enter: original loan amount, interest rate, loan term, months already paid, lump-sum payment, and recast fee. The calculator instantly shows your new EMI, interest saved, break-even point, and a full month-by-month amortization table.
Example: $200,000 loan at 5% for 30 years = $1,074/month. After 10 years, recast $50,000 (fee $250). New balance $112,684 → new payment $744/month for the remaining 20 years.

Requirements
- No government-backed loan (FHA, VA, USDA not eligible)
- Must meet lender's minimum equity requirements
- Minimum lump-sum amount (varies by lender)
- Good payment history required
When is the Right Time to Recast?
Recasting works best when your interest rate is fixed or rising, you have a low credit score that would hurt refinancing rates, or you've received a windfall (bonus, inheritance, asset sale) and want to lower monthly payments without the approval process of a refinance.
Current U.S. Mortgage Rates (2026)
| Loan Type | Approx. Rate |
|---|---|
| 30-Year Fixed | 6.5% – 7.0% |
| 15-Year Fixed | 5.7% – 6.2% |
| Refinance Rates | Similar (lender-dependent) |
Rates change frequently based on inflation, Federal Reserve policies, and market demand.
Conclusion
Mortgage recasting lowers your monthly payments by applying a lump sum to the principal — keeping your rate and term unchanged. It's a smart, low-friction alternative to refinancing, especially when credit scores are low or rates are high. Use this calculator to see your exact numbers before approaching your lender.