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If you’re ready to buy a home, you might wonder how to budget for your target home cost. Here’s a breakdown of what you might face monthly, in interest and over the life of an $850,000 mortgage.
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At a 7.00% fixed interest rate, your monthly mortgage payment on a 30-year mortgage might total $5,655 a month, while a 15-year might cost $7,640 a month.
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On a 30-year mortgage with a 7.00% fixed interest rate, you’ll pay $1,185,826 in interest over the life of your loan. That’s about two-thirds of what you borrowed in interest.
If you instead opt for a 15-year mortgage, you’ll pay $525,207 in interest over the life of your loan — or about half of the interest you’d pay on a 30-year mortgage.
When you take out a mortgage, you agree to pay the principal and interest over the life of the loan. Your interest rate is applied to your balance, and as you pay down your balance, the amount you pay in interest charges.
Amortization means that at the beginning of your loan, a big percentage of your payment is applied to interest. With each subsequent payment, you pay more toward your balance.
Estimate your monthly loan repayments on an $850,000 mortgage at a 7.00% fixed interest with our amortization schedule over 15 and 30 years.
| Year | Beginning balance | Monthly payment | Total interest paid | Total principal paid | Total paid throughout the year | Remaining balance |
|---|---|---|---|---|---|---|
| 1 | $850,000 | $5,655 | $59,226 | $8,634 | $67,861 | $841,366 |
| 2 | $841,366 | $5,655 | $58,602 | $9,259 | $67,861 | $832,107 |
| 3 | $832,107 | $5,655 | $57,933 | $9,928 | $67,861 | $822,179 |
| 4 | $822,179 | $5,655 | $57,215 | $10,646 | $67,861 | $811,534 |
| 5 | $811,534 | $5,655 | $56,446 | $11,415 | $67,861 | $800,119 |
| 6 | $800,119 | $5,655 | $55,621 | $12,240 | $67,861 | $787,878 |
| 7 | $787,878 | $5,655 | $54,736 | $13,125 | $67,861 | $774,753 |
| 8 | $774,753 | $5,655 | $53,787 | $14,074 | $67,861 | $760,679 |
| 9 | $760,679 | $5,655 | $52,769 | $15,091 | $67,861 | $745,588 |
| 10 | $745,588 | $5,655 | $51,678 | $16,182 | $67,861 | $729,405 |
| 11 | $729,405 | $5,655 | $50,509 | $17,352 | $67,861 | $712,053 |
| 12 | $712,053 | $5,655 | $49,254 | $18,607 | $67,861 | $693,446 |
| 13 | $693,446 | $5,655 | $47,909 | $19,952 | $67,861 | $673,495 |
| 14 | $673,495 | $5,655 | $46,467 | $21,394 | $67,861 | $652,101 |
| 15 | $652,101 | $5,655 | $44,920 | $22,941 | $67,861 | $629,160 |
| 16 | $629,160 | $5,655 | $43,262 | $24,599 | $67,861 | $604,561 |
| 17 | $604,561 | $5,655 | $41,484 | $26,377 | $67,861 | $578,184 |
| 18 | $578,184 | $5,655 | $39,577 | $28,284 | $67,861 | $549,900 |
| 19 | $549,900 | $5,655 | $37,532 | $30,329 | $67,861 | $519,572 |
| 20 | $519,572 | $5,655 | $35,340 | $32,521 | $67,861 | $487,051 |
| 21 | $487,051 | $5,655 | $32,989 | $34,872 | $67,861 | $452,179 |
| 22 | $452,179 | $5,655 | $30,468 | $37,393 | $67,861 | $414,786 |
| 23 | $414,786 | $5,655 | $27,765 | $40,096 | $67,861 | $374,690 |
| 24 | $374,690 | $5,655 | $24,866 | $42,995 | $67,861 | $331,695 |
| 25 | $331,695 | $5,655 | $21,758 | $46,103 | $67,861 | $285,592 |
| 26 | $285,592 | $5,655 | $18,425 | $49,435 | $67,861 | $236,157 |
| 27 | $236,157 | $5,655 | $14,852 | $53,009 | $67,861 | $183,148 |
| 28 | $183,148 | $5,655 | $11,020 | $56,841 | $67,861 | $126,307 |
| 29 | $126,307 | $5,655 | $6,911 | $60,950 | $67,861 | $65,356 |
| 30 | $65,356 | $5,655 | $2,505 | $65,356 | $67,861 | $0 |
| Year | Beginning balance | Monthly payment | Total interest paid | Total principal paid | Total paid throughout the year | Remaining balance |
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| 1 | $850,000 | $7,640 | $58,447 | $33,233 | $91,680 | $816,767 |
| 2 | $816,767 | $7,640 | $56,045 | $35,636 | $91,680 | $781,131 |
| 3 | $781,131 | $7,640 | $53,469 | $38,212 | $91,680 | $742,919 |
| 4 | $742,919 | $7,640 | $50,706 | $40,974 | $91,680 | $701,945 |
| 5 | $701,945 | $7,640 | $47,744 | $43,936 | $91,680 | $658,009 |
| 6 | $658,009 | $7,640 | $44,568 | $47,112 | $91,680 | $610,896 |
| 7 | $610,896 | $7,640 | $41,162 | $50,518 | $91,680 | $560,378 |
| 8 | $560,378 | $7,640 | $37,510 | $54,170 | $91,680 | $506,208 |
| 9 | $506,208 | $7,640 | $33,594 | $58,086 | $91,680 | $448,122 |
| 10 | $448,122 | $7,640 | $29,395 | $62,285 | $91,680 | $385,837 |
| 11 | $385,837 | $7,640 | $24,893 | $66,788 | $91,680 | $319,050 |
| 12 | $319,050 | $7,640 | $20,065 | $71,616 | $91,680 | $247,434 |
| 13 | $247,434 | $7,640 | $14,888 | $76,793 | $91,680 | $170,641 |
| 14 | $170,641 | $7,640 | $9,336 | $82,344 | $91,680 | $88,297 |
| 15 | $88,297 | $7,640 | $3,384 | $88,297 | $91,680 | $0 |
Buying a house is among the biggest investments you’ll make. Know how much you might pay each month on your $850,000 mortgage — including how much of your payment goes toward your interest over the principal — when shopping for a lender.
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