The Nifty App
Calculators

Amortization Calculator with Extra Payments

Adding even a modest extra payment each month can shorten a mortgage by years and save tens of thousands in interest. This example uses a $300,000 loan at 6.5% with an extra $200 per month — the summary shows how many payments you skip and how much interest you avoid compared to the baseline schedule.

Controls below let you change the extra amount, add a one-time lump sum at a specific payment number, and download the full schedule. Copy link shares layout settings only; your loan numbers are never in the URL.

Compare the downloaded schedule against your lender statement to verify principal and interest columns. Escrow, PMI, and fees are not included.

Loan:$300,000.00 at 6.5% for 30 years (monthly)

Monthly payment:$1,896.20

Total interest:$279,186.52· Payments:277

Interest saved:$103,450.22 · Fewer payments: 84

#PaymentPrincipalInterestExtraBalance
1$25,154.40$5,825.93$19,328.47$294,174.07
2$25,154.40$6,216.10$18,938.30$287,957.97
3$25,154.40$6,632.39$18,522.01$281,325.58
4$25,154.40$7,076.58$18,077.82$274,249.00
5$25,154.40$7,550.50$17,603.90$266,698.50
6$25,154.40$8,056.19$17,098.21$258,642.31
7$25,154.40$8,595.72$16,558.68$250,046.59
8$25,154.40$9,171.41$15,982.99$240,875.18
9$25,154.40$9,785.64$15,368.76$231,089.54
10$25,154.40$10,441.00$14,713.40$220,648.54
11$25,154.40$11,140.23$14,014.17$209,508.31
12$25,154.40$11,886.31$13,268.09$197,622.00

Showing first 12 of 24 rows. Download PDF or CSV for the full schedule.

The Nifty App · theniftyapp.com

Related schedules

Running calculators