See how every payment splits between principal and interest and how your loan balance falls over time.
Monthly principal & interest
Principal
Interest
Total of all payments
$728,142.36
Payoff date
Nov 2056
Balance
Interest paid
Principal paid
Year
Interest
Principal
Ending balance
1
$20,694.69
$3,576.72
$316,423.28
2
$20,455.15
$3,816.26
$312,607.02
3
$20,199.57
$4,071.84
$308,535.17
4
$19,926.87
$4,344.54
$304,190.63
5
$19,635.91
$4,635.50
$299,555.13
6
$19,325.46
$4,945.95
$294,609.18
7
$18,994.22
$5,277.19
$289,331.98
8
$18,640.80
$5,630.62
$283,701.37
9
$18,263.70
$6,007.71
$277,693.66
10
$17,861.36
$6,410.06
$271,283.60
11
$17,432.06
$6,839.35
$264,444.26
12
$16,974.02
$7,297.39
$257,146.86
13
$16,485.30
$7,786.11
$249,360.75
14
$15,963.85
$8,307.56
$241,053.19
15
$15,407.48
$8,863.94
$232,189.25
16
$14,813.84
$9,457.57
$222,731.68
17
$14,180.45
$10,090.96
$212,640.72
18
$13,504.64
$10,766.77
$201,873.95
19
$12,783.57
$11,487.84
$190,386.11
20
$12,014.21
$12,257.20
$178,128.90
21
$11,193.32
$13,078.09
$165,050.81
22
$10,317.46
$13,953.96
$151,096.86
23
$9,382.93
$14,888.48
$136,208.38
24
$8,385.83
$15,885.59
$120,322.79
25
$7,321.94
$16,949.47
$103,373.32
26
$6,186.80
$18,084.61
$85,288.71
27
$4,975.64
$19,295.77
$65,992.94
28
$3,683.37
$20,588.05
$45,404.89
29
$2,304.55
$21,966.86
$23,438.03
30
$833.39
$23,438.03
$0.00
What is amortization?
Amortization is paying off a loan with equal monthly payments over a fixed term. Each payment first covers the
interest charged on the remaining balance; the rest reduces the principal. Early in the loan most of the payment
is interest. As the balance falls, the interest part shrinks and more of each payment goes to principal.
How each payment is split
Interest for a month is the remaining balance multiplied by the monthly rate (annual rate divided by 12). The
principal part is the fixed payment minus that interest. The new balance is the old balance minus the principal
part.
Example
On a $320,000 loan at 6.5% for 30 years the monthly payment is $2,022.62. The first payment covers $1,733.33 of interest and only $289.28 of principal.
From payment 233 on, more of each payment goes to principal than to interest.
Total interest over the life of the loan is $408,142.
Frequently asked questions
Why does so little go to principal at the start?
Interest is charged on the outstanding balance, which is highest at the beginning. On a 30-year loan the principal part usually overtakes the interest part only after many years.
How can I pay less interest?
A shorter term, a lower rate or extra payments toward principal all reduce total interest. Try the mortgage payoff calculator to see the effect of extra payments.
Does the schedule include taxes and insurance?
No. Amortization covers only principal and interest. Use the mortgage calculator for the full monthly payment.