$350,000 Mortgage at 8% for 20 Years
A $350,000 mortgage at 8% over 20 years has a monthly principal + interest payment of $2,928. You'll pay $352,610 in total interest, bringing total loan cost to $702,610.
Estimated monthly payment
$3,490
Principal + interest
$2,928
Property tax
$438
Home insurance
$125
PMI
$0
HOA
$0
Total monthly
$3,490
1st month interest
$2,333
1st month principal
$594
Total interest
$352,610
Balance after 1 year
$342,602
Balance after 5 years
$306,340
Total cost (P+I)
$702,610
Amortization (first 10 years)
| Year | Principal | Interest | Balance |
|---|---|---|---|
| 1 | $7,398 | $27,733 | $342,602 |
| 2 | $8,012 | $27,119 | $334,590 |
| 3 | $8,677 | $26,454 | $325,913 |
| 4 | $9,397 | $25,733 | $316,516 |
| 5 | $10,177 | $24,954 | $306,340 |
| 6 | $11,022 | $24,109 | $295,318 |
| 7 | $11,936 | $23,194 | $283,381 |
| 8 | $12,927 | $22,203 | $270,454 |
| 9 | $14,000 | $21,130 | $256,454 |
| 10 | $15,162 | $19,968 | $241,292 |
15-year vs 30-year
| Term | Monthly P+I | Total interest | Total cost |
|---|---|---|---|
| 15 years | $3,345 | $252,061 | $602,061 |
| 30 years | $2,568 | $574,543 | $924,543 |
Choosing 15 years over 30 saves about $322,483 in interest at this rate and loan amount.
Extra payments
Payment breakdown
Monthly P+I
$2,928
Total payments
240
Total interest
$352,610
Total cost (P+I only)
$702,610
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$2,718/mo
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$400,000 · 8% · 20 yr
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$350,000 · 7.5% · 20 yr
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$3,149/mo
$350,000 · 8% · 15 yr
$3,345/mo
$350,000 · 8% · 30 yr
$2,568/mo
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Last updated: 2026