$500,000 Mortgage at 6% for 20 Years
A $500,000 mortgage at 6% over 20 years has a monthly principal + interest payment of $3,582. You'll pay $359,717 in total interest, bringing total loan cost to $859,717.
Estimated monthly payment
$4,332
Principal + interest
$3,582
Property tax
$625
Home insurance
$125
PMI
$0
HOA
$0
Total monthly
$4,332
1st month interest
$2,500
1st month principal
$1,082
Total interest
$359,717
Balance after 1 year
$486,651
Balance after 5 years
$424,498
Total cost (P+I)
$859,717
Amortization (first 10 years)
| Year | Principal | Interest | Balance |
|---|---|---|---|
| 1 | $13,349 | $29,637 | $486,651 |
| 2 | $14,172 | $28,814 | $472,479 |
| 3 | $15,046 | $27,939 | $457,432 |
| 4 | $15,974 | $27,011 | $441,458 |
| 5 | $16,960 | $26,026 | $424,498 |
| 6 | $18,006 | $24,980 | $406,492 |
| 7 | $19,116 | $23,870 | $387,376 |
| 8 | $20,295 | $22,690 | $367,080 |
| 9 | $21,547 | $21,439 | $345,533 |
| 10 | $22,876 | $20,110 | $322,657 |
15-year vs 30-year
| Term | Monthly P+I | Total interest | Total cost |
|---|---|---|---|
| 15 years | $4,219 | $259,471 | $759,471 |
| 30 years | $2,998 | $579,191 | $1,079,191 |
Choosing 15 years over 30 saves about $319,720 in interest at this rate and loan amount.
Extra payments
Payment breakdown
Monthly P+I
$3,582
Total payments
240
Total interest
$359,717
Total cost (P+I only)
$859,717
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$3,403/mo
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$3,940/mo
$450,000 · 6% · 20 yr
$3,224/mo
$600,000 · 6% · 20 yr
$4,299/mo
$500,000 · 5.5% · 20 yr
$3,439/mo
$500,000 · 6.5% · 20 yr
$3,728/mo
$500,000 · 5% · 20 yr
$3,300/mo
$500,000 · 7% · 20 yr
$3,876/mo
$500,000 · 6% · 15 yr
$4,219/mo
$500,000 · 6% · 30 yr
$2,998/mo
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Last updated: 2026