$600,000 Mortgage at 8% for 20 Years
A $600,000 mortgage at 8% over 20 years has a monthly principal + interest payment of $5,019. You'll pay $604,474 in total interest, bringing total loan cost to $1,204,474.
Estimated monthly payment
$5,894
Principal + interest
$5,019
Property tax
$750
Home insurance
$125
PMI
$0
HOA
$0
Total monthly
$5,894
1st month interest
$4,000
1st month principal
$1,019
Total interest
$604,474
Balance after 1 year
$587,318
Balance after 5 years
$525,154
Total cost (P+I)
$1,204,474
Amortization (first 10 years)
| Year | Principal | Interest | Balance |
|---|---|---|---|
| 1 | $12,682 | $47,542 | $587,318 |
| 2 | $13,735 | $46,489 | $573,583 |
| 3 | $14,875 | $45,349 | $558,709 |
| 4 | $16,109 | $44,115 | $542,600 |
| 5 | $17,446 | $42,777 | $525,154 |
| 6 | $18,894 | $41,329 | $506,259 |
| 7 | $20,462 | $39,761 | $485,797 |
| 8 | $22,161 | $38,063 | $463,636 |
| 9 | $24,000 | $36,224 | $439,636 |
| 10 | $25,992 | $34,232 | $413,644 |
15-year vs 30-year
| Term | Monthly P+I | Total interest | Total cost |
|---|---|---|---|
| 15 years | $5,734 | $432,104 | $1,032,104 |
| 30 years | $4,403 | $984,931 | $1,584,931 |
Choosing 15 years over 30 saves about $552,827 in interest at this rate and loan amount.
Extra payments
Payment breakdown
Monthly P+I
$5,019
Total payments
240
Total interest
$604,474
Total cost (P+I only)
$1,204,474
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Nearby scenarios
$550,000 · 8% · 20 yr
$4,600/mo
$650,000 · 8% · 20 yr
$5,437/mo
$500,000 · 8% · 20 yr
$4,182/mo
$700,000 · 8% · 20 yr
$5,855/mo
$600,000 · 7.5% · 20 yr
$4,834/mo
$600,000 · 8.5% · 20 yr
$5,207/mo
$600,000 · 7% · 20 yr
$4,652/mo
$600,000 · 9% · 20 yr
$5,398/mo
$600,000 · 8% · 15 yr
$5,734/mo
$600,000 · 8% · 30 yr
$4,403/mo
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Last updated: 2026