$1,000,000 Mortgage at 8% for 20 Years
A $1,000,000 mortgage at 8% over 20 years has a monthly principal + interest payment of $8,364. You'll pay $1,007,456 in total interest, bringing total loan cost to $2,007,456.
Estimated monthly payment
$9,739
Principal + interest
$8,364
Property tax
$1,250
Home insurance
$125
PMI
$0
HOA
$0
Total monthly
$9,739
1st month interest
$6,667
1st month principal
$1,698
Total interest
$1,007,456
Balance after 1 year
$978,863
Balance after 5 years
$875,256
Total cost (P+I)
$2,007,456
Amortization (first 10 years)
| Year | Principal | Interest | Balance |
|---|---|---|---|
| 1 | $21,137 | $79,236 | $978,863 |
| 2 | $22,891 | $77,482 | $955,972 |
| 3 | $24,791 | $75,582 | $931,181 |
| 4 | $26,849 | $73,524 | $904,333 |
| 5 | $29,077 | $71,296 | $875,256 |
| 6 | $31,490 | $68,882 | $843,765 |
| 7 | $34,104 | $66,269 | $809,661 |
| 8 | $36,935 | $63,438 | $772,727 |
| 9 | $40,000 | $60,373 | $732,727 |
| 10 | $43,320 | $57,053 | $689,406 |
15-year vs 30-year
| Term | Monthly P+I | Total interest | Total cost |
|---|---|---|---|
| 15 years | $9,557 | $720,174 | $1,720,174 |
| 30 years | $7,338 | $1,641,552 | $2,641,552 |
Choosing 15 years over 30 saves about $921,379 in interest at this rate and loan amount.
Extra payments
Payment breakdown
Monthly P+I
$8,364
Total payments
240
Total interest
$1,007,456
Total cost (P+I only)
$2,007,456
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Last updated: 2026