$600,000 Mortgage at 6% for 20 Years
A $600,000 mortgage at 6% over 20 years has a monthly principal + interest payment of $4,299. You'll pay $431,661 in total interest, bringing total loan cost to $1,031,661.
Estimated monthly payment
$5,174
Principal + interest
$4,299
Property tax
$750
Home insurance
$125
PMI
$0
HOA
$0
Total monthly
$5,174
1st month interest
$3,000
1st month principal
$1,299
Total interest
$431,661
Balance after 1 year
$583,981
Balance after 5 years
$509,398
Total cost (P+I)
$1,031,661
Amortization (first 10 years)
| Year | Principal | Interest | Balance |
|---|---|---|---|
| 1 | $16,019 | $35,564 | $583,981 |
| 2 | $17,007 | $34,576 | $566,974 |
| 3 | $18,056 | $33,527 | $548,919 |
| 4 | $19,169 | $32,414 | $529,749 |
| 5 | $20,352 | $31,231 | $509,398 |
| 6 | $21,607 | $29,976 | $487,791 |
| 7 | $22,940 | $28,643 | $464,851 |
| 8 | $24,354 | $27,229 | $440,497 |
| 9 | $25,857 | $25,726 | $414,640 |
| 10 | $27,451 | $24,132 | $387,189 |
15-year vs 30-year
| Term | Monthly P+I | Total interest | Total cost |
|---|---|---|---|
| 15 years | $5,063 | $311,365 | $911,365 |
| 30 years | $3,597 | $695,029 | $1,295,029 |
Choosing 15 years over 30 saves about $383,664 in interest at this rate and loan amount.
Extra payments
Payment breakdown
Monthly P+I
$4,299
Total payments
240
Total interest
$431,661
Total cost (P+I only)
$1,031,661
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Nearby scenarios
$550,000 · 6% · 20 yr
$3,940/mo
$650,000 · 6% · 20 yr
$4,657/mo
$500,000 · 6% · 20 yr
$3,582/mo
$700,000 · 6% · 20 yr
$5,015/mo
$600,000 · 5.5% · 20 yr
$4,127/mo
$600,000 · 6.5% · 20 yr
$4,473/mo
$600,000 · 5% · 20 yr
$3,960/mo
$600,000 · 7% · 20 yr
$4,652/mo
$600,000 · 6% · 15 yr
$5,063/mo
$600,000 · 6% · 30 yr
$3,597/mo
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Last updated: 2026