$100,000 Mortgage at 9% for 30 Years

A $100,000 mortgage at 9% over 30 years has a monthly principal + interest payment of $805. You'll pay $189,664 in total interest, bringing total loan cost to $289,664.

Estimated monthly payment
$1,055
Principal + interest
$805
Property tax
$125
Home insurance
$125
PMI
$0
HOA
$0
Total monthly
$1,055
1st month interest
$750
1st month principal
$55
Total interest
$189,664
Balance after 1 year
$99,317
Balance after 5 years
$95,880
Total cost (P+I)
$289,664

Amortization (first 10 years)

YearPrincipalInterestBalance
1$683$8,972$99,317
2$747$8,908$98,570
3$817$8,838$97,752
4$894$8,761$96,858
5$978$8,678$95,880
6$1,070$8,586$94,810
7$1,170$8,485$93,640
8$1,280$8,376$92,361
9$1,400$8,256$90,961
10$1,531$8,124$89,430

15-year vs 30-year

TermMonthly P+ITotal interestTotal cost
15 years$1,014$82,568$182,568
30 years$805$189,664$289,664

Choosing 15 years over 30 saves about $107,096 in interest at this rate and loan amount.

Extra payments

Payment breakdown

Monthly P+I
$805
Total payments
360
Total interest
$189,664
Total cost (P+I only)
$289,664
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Last updated: 2026