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How much would I pay on a $450,000 mortgage?

Calculate repayments, total interest and amortization on a $450k home loan to borrow with confidence.

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If you’re ready to buy a home, you might wonder how to budget for your target home cost. As of August 26, 2024 the national average 30-year mortgage rate is sitting at 6.53% according to Bankrate. However, your rate also depends on your personal financial factors and credit history. Here’s a breakdown of what you might face monthly, in interest and over the life of a $450,000 mortgage.

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Monthly payments on a $450,000 mortgage

At a 7.00% fixed interest rate, your monthly mortgage payment on a $450,000 30-year mortgage might total $2,994 a month, while a 15-year might cost $4,045 a month.
15-year vs. 30-year mortgages

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Name Product USFHL Loan products offered State availability Min. credit score
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Your total interest on a $450,000 mortgage

On a 30-year $450,000 mortgage with a 7.00% fixed interest rate, you may pay $627,790 in interest over the life of your loan.
If you instead opt for a 15-year mortgage, it’s around $278,051 in interest over the life of your loan — or less than half of the interest you’d pay on a 30-year mortgage.

The average home loan interest rate

Amortization schedule

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 changes.
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 a $450,000 mortgage at 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 $450,000 $2,994 $31,355 $4,571 $35,926 $445,429
2 $445,429 $2,994 $31,025 $4,902 $35,926 $440,527
3 $440,527 $2,994 $30,670 $5,256 $35,926 $435,271
4 $435,271 $2,994 $30,290 $5,636 $35,926 $429,635
5 $429,635 $2,994 $29,883 $6,043 $35,926 $423,592
6 $423,592 $2,994 $29,446 $6,480 $35,926 $417,112
7 $417,112 $2,994 $28,978 $6,949 $35,926 $410,163
8 $410,163 $2,994 $28,475 $7,451 $35,926 $402,712
9 $402,712 $2,994 $27,937 $7,990 $35,926 $394,723
10 $394,723 $2,994 $27,359 $8,567 $35,926 $386,156
11 $386,156 $2,994 $26,740 $9,186 $35,926 $376,969
12 $376,969 $2,994 $26,076 $9,851 $35,926 $367,119
13 $367,119 $2,994 $25,364 $10,563 $35,926 $356,556
14 $356,556 $2,994 $24,600 $11,326 $35,926 $345,230
15 $345,230 $2,994 $23,781 $12,145 $35,926 $333,085
16 $333,085 $2,994 $22,903 $13,023 $35,926 $320,062
17 $320,062 $2,994 $21,962 $13,964 $35,926 $306,098
18 $306,098 $2,994 $20,952 $14,974 $35,926 $291,124
19 $291,124 $2,994 $19,870 $16,056 $35,926 $275,067
20 $275,067 $2,994 $18,709 $17,217 $35,926 $257,850
21 $257,850 $2,994 $17,465 $18,462 $35,926 $239,389
22 $239,389 $2,994 $16,130 $19,796 $35,926 $219,592
23 $219,592 $2,994 $14,699 $21,227 $35,926 $198,365
24 $198,365 $2,994 $13,164 $22,762 $35,926 $175,603
25 $175,603 $2,994 $11,519 $24,407 $35,926 $151,196
26 $151,196 $2,994 $9,755 $26,172 $35,926 $125,024
27 $125,024 $2,994 $7,863 $28,064 $35,926 $96,961
28 $96,961 $2,994 $5,834 $30,092 $35,926 $66,868
29 $66,868 $2,994 $3,659 $32,268 $35,926 $34,600
30 $34,600 $2,994 $1,326 $34,600 $35,926 $0
Year Beginning balance Monthly payment Total interest paid Total principal paid Total paid throughout the year Remaining balance
1 $450,000 $4,045 $30,943 $17,594 $48,537 $432,406
2 $432,406 $4,045 $29,671 $18,866 $48,537 $413,540
3 $413,540 $4,045 $28,307 $20,230 $48,537 $393,310
4 $393,310 $4,045 $26,845 $21,692 $48,537 $371,618
5 $371,618 $4,045 $25,276 $23,260 $48,537 $348,358
6 $348,358 $4,045 $23,595 $24,942 $48,537 $323,416
7 $323,416 $4,045 $21,792 $26,745 $48,537 $296,671
8 $296,671 $4,045 $19,858 $28,678 $48,537 $267,993
9 $267,993 $4,045 $17,785 $30,751 $48,537 $237,241
10 $237,241 $4,045 $15,562 $32,974 $48,537 $204,267
11 $204,267 $4,045 $13,179 $35,358 $48,537 $168,909
12 $168,909 $4,045 $10,623 $37,914 $48,537 $130,994
13 $130,994 $4,045 $7,882 $40,655 $48,537 $90,339
14 $90,339 $4,045 $4,943 $43,594 $48,537 $46,745
15 $46,745 $4,045 $1,791 $46,745 $48,537 $0

Bottom line

Buying a house is among the biggest investments you’ll make. Know how much you might pay each month on your $450,000 mortgage — including how much of your payment goes toward your interest over the principal — when shopping for a lender.
Learn more about how home loans work in our comprehensive guide to mortgages.

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To make sure you get accurate and helpful information, this guide has been edited by Megan B. Shepherd as part of our fact-checking process.
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Written by

Staff writer

Heather Petty was a personal finance writer at Finder, specializing in home and personal loans. After falling victim to a disreputable mortgage broker when buying her first home, she’s on a mission to help readers avoid similar experiences when managing their own finances. A self-proclaimed word nerd, her writing and analysis has been featured on MSN, Credit.com and MediaFeed, among other top media. Heather previously worked as a technical writer and editor for the casino systems industry and is an internationally published young adult mystery author. She earned a BA in English with a minor in journalism from the University of Nevada, Reno. See full bio

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Heather has written 96 Finder guides across topics including:
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