Payment comparison over various amortization periods*
Amortization Period
Monthly Payment
Total Payments
Total Interest Paid
Interest Savings**
25 years
$895
$268,500
$168,500
n/a
20 years
$952
$228,480
$128,480
$40,020
15 years
$1,063
$191,340
$91,340
$77,160
10 years
$1,311
$157,320
$57,240
$111,260
* Rounded numbers, for illustrative purposes only
** Assumes a constant interest rate for the entire amortization period.

Monthly Payment per $1,000 borrowed*
Interest Rate%
Cost per $1,000
Interest rate%
Cost per $1,000
Interest Rate%
Cost per $1,000
6.0
$6.40
8.5
$7.95
11.0
$9.63
6.5
$6.70
9.0
$8.28
11.5
$9.98
7.0
$7.01
9.5
$8.62
12.0
$10.32
7.5
$7.32
10.0
$8.95
12.5
$10.68
8.0
$7.64
10.5
$9.29
13.0
$11.03
* Amortized over 25 years based on 10% down payment

Example: Judy can afford $800 per month for a mortgage payment.  If the prevailing mortgage interest rate is 6%, she will qualify for a mortgage of $125,000, amortized over 25 years. If the prevailing mortgage rate is 13%, she will qualify for a mortgage of $72,600. The lower the interest rate, the higher the mortgage for which she qualifies.

source:
"Homebuying Step By Step - A Consumer Guide and Workbook"
published by the Canada Mortgage and Housing Corporation

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