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Recast 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."

Enter Your Loan Details Below

Fill in the fields and click Calculate — results appear instantly, no page reload.

Loan Details

Current Loan
$
Amount borrowed at loan start
%
Fixed rate on your mortgage
yrs
Total tenure (15, 20, 30 yrs)
EMIs made so far (36 = 3 yrs)
For calendar labels in table
1 = Jan … 12 = Dec
Recast Details
$
Extra principal you'll pay now
$
Lender one-time fee ($150–$500)

Your Recast Results

✓ Net saving: $5,949.93
EMI Before
$2,528.27
Balance $385,668.97
EMI After Recast
$2,200.49
New bal $335,668.97
Monthly Saving
$327.78
$3,933.33/year
Interest Saved
$56,199.93
13% reduction

Remaining Interest — Before vs. After

Without recast
$433,491.30
With recast
$377,291.37

Recast saves $56,199.93 (13%) over the remaining 324 months.

Loan Snapshot
Original loan$400,000.00
Rate / Term6.500% / 30yrs
Original EMI$2,528.27
Months paid36 (3y 0m)
Principal paid$399,999.96
Interest paid$76,686.80
Outstanding balance$385,668.97
Remaining27y 0m (324 months)
Recast Impact
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

Show ▼
Monthly rate0.541667%
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 period154 months (12y 10m)
Annual saving$3,933.33/year

☰ Amortization Schedule

Month-by-month table — grouped by year with subtotals and calendar dates

Show Table ▼
Without Recast With Recast
Months 1–60 of 324 | Page 1/6
#DatePaymentPrincipalInterestBalance
YEAR 4  |  Principal: $5,430.67  Interest: $24,908.58  Total: $30,339.24
37Apr 2026$2,528.27$439.23$2,089.04$385,229.74
38May 2026$2,528.27$441.61$2,086.66$384,788.12
39Jun 2026$2,528.27$444.00$2,084.27$384,344.12
40Jul 2026$2,528.27$446.41$2,081.86$383,897.71
41Aug 2026$2,528.27$448.83$2,079.45$383,448.89
42Sep 2026$2,528.27$451.26$2,077.01$382,997.63
43Oct 2026$2,528.27$453.70$2,074.57$382,543.93
44Nov 2026$2,528.27$456.16$2,072.11$382,087.77
45Dec 2026$2,528.27$458.63$2,069.64$381,629.14
46Jan 2027$2,528.27$461.11$2,067.16$381,168.03
47Feb 2027$2,528.27$463.61$2,064.66$380,704.41
48Mar 2027$2,528.27$466.12$2,062.15$380,238.29
YEAR 5  |  Principal: $5,794.39  Interest: $24,544.89  Total: $30,339.24
49Apr 2027$2,528.27$468.65$2,059.62$379,769.64
50May 2027$2,528.27$471.19$2,057.09$379,298.46
51Jun 2027$2,528.27$473.74$2,054.53$378,824.72
52Jul 2027$2,528.27$476.30$2,051.97$378,348.41
53Aug 2027$2,528.27$478.88$2,049.39$377,869.53
54Sep 2027$2,528.27$481.48$2,046.79$377,388.05
55Oct 2027$2,528.27$484.09$2,044.19$376,903.96
56Nov 2027$2,528.27$486.71$2,041.56$376,417.25
57Dec 2027$2,528.27$489.35$2,038.93$375,927.91
58Jan 2028$2,528.27$492.00$2,036.28$375,435.91
59Feb 2028$2,528.27$494.66$2,033.61$374,941.25
60Mar 2028$2,528.27$497.34$2,030.93$374,443.91
YEAR 6  |  Principal: $6,182.44  Interest: $24,156.84  Total: $30,339.24
61Apr 2028$2,528.27$500.03$2,028.24$373,943.88
62May 2028$2,528.27$502.74$2,025.53$373,441.13
63Jun 2028$2,528.27$505.47$2,022.81$372,935.67
64Jul 2028$2,528.27$508.20$2,020.07$372,427.46
65Aug 2028$2,528.27$510.96$2,017.32$371,916.51
66Sep 2028$2,528.27$513.72$2,014.55$371,402.78
67Oct 2028$2,528.27$516.51$2,011.77$370,886.27
68Nov 2028$2,528.27$519.30$2,008.97$370,366.97
69Dec 2028$2,528.27$522.12$2,006.15$369,844.85
70Jan 2029$2,528.27$524.95$2,003.33$369,319.91
71Feb 2029$2,528.27$527.79$2,000.48$368,792.12
72Mar 2029$2,528.27$530.65$1,997.62$368,261.47
YEAR 7  |  Principal: $6,596.49  Interest: $23,742.78  Total: $30,339.24
73Apr 2029$2,528.27$533.52$1,994.75$367,727.95
74May 2029$2,528.27$536.41$1,991.86$367,191.53
75Jun 2029$2,528.27$539.32$1,988.95$366,652.22
76Jul 2029$2,528.27$542.24$1,986.03$366,109.98
77Aug 2029$2,528.27$545.18$1,983.10$365,564.80
78Sep 2029$2,528.27$548.13$1,980.14$365,016.67
79Oct 2029$2,528.27$551.10$1,977.17$364,465.57
80Nov 2029$2,528.27$554.08$1,974.19$363,911.49
81Dec 2029$2,528.27$557.08$1,971.19$363,354.40
82Jan 2030$2,528.27$560.10$1,968.17$362,794.30
83Feb 2030$2,528.27$563.14$1,965.14$362,231.17
84Mar 2030$2,528.27$566.19$1,962.09$361,664.98
YEAR 8  |  Principal: $7,038.27  Interest: $23,301.01  Total: $30,339.24
85Apr 2030$2,528.27$569.25$1,959.02$361,095.73
86May 2030$2,528.27$572.34$1,955.94$360,523.39
87Jun 2030$2,528.27$575.44$1,952.84$359,947.95
88Jul 2030$2,528.27$578.55$1,949.72$359,369.40
89Aug 2030$2,528.27$581.69$1,946.58$358,787.71
90Sep 2030$2,528.27$584.84$1,943.43$358,202.87
91Oct 2030$2,528.27$588.01$1,940.27$357,614.86
92Nov 2030$2,528.27$591.19$1,937.08$357,023.67
93Dec 2030$2,528.27$594.39$1,933.88$356,429.28
94Jan 2031$2,528.27$597.61$1,930.66$355,831.67
95Feb 2031$2,528.27$600.85$1,927.42$355,230.82
96Mar 2031$2,528.27$604.11$1,924.17$354,626.71
—Page 1 total$151,696.20$31,042.26$120,654.10—

Page 1 of 6  ·  5 years per page

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.

Mortgage Recast Calculator

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.

Mortgage recast savings chart

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 TypeApprox. Rate
30-Year Fixed6.5% – 7.0%
15-Year Fixed5.7% – 6.2%
Refinance RatesSimilar (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.

Frequently Asked Questions

A Recast mortgage calculator helps homeowners estimate new monthly payments and total interest savings after making a lump sum payment towards their mortgage principal.
Recasting is the process of pre-paying a lump sum amount to the lender, which reduces the principal and gives a new, lower payment schedule.
When you recast, your lender charges a one-time administrative fee to redo your payment schedule. This typically falls between $150 and $500 — check with your lender for the exact amount.
No. The interest rate remains constant during recasting — only the monthly payment amount decreases due to the lower principal balance.
Government-backed loans — FHA, VA, and USDA — are generally not eligible for loan recasting.
Recasting is ideal when your interest rate is fixed or rising, your credit score is low (making refinancing expensive), or you've received a large sum you want to put toward your home without going through a full refinance process.