The Petri family is considering whether to buy or rent a home valued at $125,000. If they buy, their monthly mortgage payment would be $787.51 with a 25-year, 7.25% mortgage. In the first year of owning, 83.14% of their mortgage payments would go toward interest and 17.42% would reduce the principal. Renting the home for a year would cost $10,500, and the annual rental cost would increase 4% each year.

1. Buy or Rent?
It's a little more complicated nowadays ...
1894
Mortgage by flickr user Rev Dan Catt

2. The Petri Family: A Buy vrs. Rent Case Study
The Petri family needs to move, and so they are looking for another
home. They are considering buying or renting a home. The price of
a suitable home is $125 000. The cost of renting a similar home is
$875 per month. They have $21 000 invested in an account that is
growing by 7% per year, and they will use this for the down
payment and to cover the 'Additional Costs when Purchasing a
Home' if they buy. They have also checked with their bank about a
mortgage, and they can get a 25-year mortgage at 7.25% to pay for
the balance of the home. Other things to consider are:
• the 'Additional Costs when Purchasing a Home' are $6000.00,
and so they will have $15 000 for the down payment
• annual property taxes are about 1.5% of the value of the home
• the home is expected to appreciate at 4% per year
• rental payments are also expected to increase 4% per year
• they expect to receive 7% per year growth in their investment if
they do not use the $21 000 as a down payment for the home.

3. The Petri Family: A Buy vrs. Rent Case Study
1. What is the amount of the monthly mortgage payment?
$787.51
N= N=
I%= I%=
PV= PV=
PMT= PMT=
FV= FV=
P/Y= P/Y=
C/Y= C/Y=
PMT: END BEGIN PMT: END BEGIN

4. The Petri Family: A Buy vrs. Rent Case Study HOMEWORK
2. If the property taxes are 1.5% of the market value, how much
are property taxes the year they buy the home? $1 875.00
After they own the home for 10 years? $2 775.46

5. The Petri Family: A Buy vrs. Rent Case Study HOMEWORK
3. What percent of the first mortgage payment is used to pay interest?
∑Int(1,1) = -654.76
83.14%

6. The Petri Family: A Buy vrs. Rent Case Study HOMEWORK
4. (a) How much is left owing on the N=
home after one year (i.e. 12 payments)? I%=
PV=
bal(12) = 108 353.83 PMT=
(b) What is the total amount they have paid FV=
in mortgage payments in one year? P/Y=
C/Y=
12 x $787.51 = $9 450.12 PMT: END BEGIN
(c) How much was the mortgage reduced after 12 payments?
∑Prn(1,12) = -1646.17
(d) What percent of the money paid in the first year was used
to reduce the principal of the mortgage?
17.42%

7. The Petri Family: A Buy vrs. Rent Case Study HOMEWORK
5. If the market value of the home increases 4% per year, what is the
value of the home after 10 years?
10
$125 000 x 1.04 = $185 030.54

8. The Petri Family: A Buy vrs. Rent Case Study HOMEWORK
6. If they rented the home for one year at $875 per month, how much
would they pay for the year? $10 500.00
How much would the annual rental charge be for the 10th year they
rent if rental rates increase 4% per year.
10
$875 x 1.04 = $1 295.21

9. The Petri Family: A Buy vrs. Rent Case Study HOMEWORK
7. If they rent the house and invest the $21 000 at 7% per year, how
large would the investment be after 10 years?
N=
$42 202.89 I%=
PV=
PMT=
FV=
P/Y=
C/Y=
PMT: END BEGIN

10. The Petri Family: A Buy vrs. Rent Case Study HOMEWORK
Equity = Purchase Price(*) - Mortgage Principal Remaining
8. What equity does the Petri family have in the home immediately
after buying it?
$15 000.00
After 2 years?
∑Prn(1,24) = -3413.87
$18 413.87
After 3 years?
∑Prn(1,36) = -5312.04
$20 312.04

11. The Petri Family: A Buy vrs. Rent Case Study
9. How do the mortgage payments and rental payments compare
during the first year? After 5 years? After 10 years?

12. The Petri Family: A Buy vrs. Rent Case Study
10. How do the total costs of mortgage payments and rental
payments compare after 1 year?

13. The Petri Family: A Buy vrs. Rent Case Study
10. How do the total costs of mortgage payments and rental
payments compare after 2 years?

14. The Petri Family: A Buy vrs. Rent Case Study
10. How do the total costs of mortgage payments and rental
payments compare after 10 years?

15. Rent or Buy? A Case Study ...
The Browns have an opportunity to buy a home valued at $50 000 with
a down payment of $5000 and a mortgage of $45 000, or rent the home
for $525 per month.
If they buy, they will get a 15-year mortgage at 7.5%. Annual property
taxes are approximately 1.5% of the market value (i.e. the sale price)
of the home. They expect their home to appreciate in value by about
2% per year. (That is, it will become 2% MORE VALUABLE each
year. If it is worth $100 this year, next year it will be worth $102
and the year after that it would be worth $104.04.)
If they rent, their rental payments will increase by 3% each year,
and they expect to get a 7% annual return on their investment of
the $5000 they did not use as a down payment.

16. (a) What is the size of the monthly mortgage payment?
(b) What will their equity be in the home after 2 years of ownership?
10 years?
N=
I%=
PV=
PMT=
FV=
P/Y=
C/Y=
PMT: END BEGIN

17. (c) After one year, how does the cost of payments plus property
taxes compare with the cost of rental payments?
(d) After 10 years, how does the annual cost of payments plus
property taxes compare with the annual cost of rental payments?
(e) What might be two reasons for the Brown family to rent instead of
buy - even though renting seems to be more expensive in the long run?
(f) What is the net cost of owning the home (Mortgage, down
payment, add. costs, taxes, equity) for 10 years? Of renting (rent
and investment returns) for 10 years?

18. (d) After 10 years, how does the annual cost of payments plus
property taxes compare with the annual cost of rental payments?
(e) What might be two reasons for the Brown family to rent instead of
buy - even though renting seems to be more expensive in the long run?
(f) What is the net cost of owning the home (Mortgage, down
payment, add. costs, taxes, equity) for 10 years? Of renting (rent
and investment returns) for 10 years?

19. (f) What is the net cost of owning the home (Mortgage, down
payment, add. costs, taxes, equity) for 10 years? Of renting (rent
and investment returns) for 10 years?

20. (e) What might be two reasons for the Brown family to rent instead of
buy - even though renting seems to be more expensive in the long run?
(f) What is the net cost of owning the home (Mortgage, down
payment, add. costs, taxes, equity) for 10 years? Of renting (rent
and investment returns) for 10 years?

21. Mr. T’s family has decided to buy a larger home, and the date of
possession is April 1.
HOMEWORK
The price of the home is $135 000, and he has $45 000 as a down
payment. He will buy homeowners insurance on the new home for
$425, but will receive a refund of $300 from his previous home
insurance policy. He has the new home appraised by a real estate
agent, and the fee is $250. The bank requires a land survey which costs
$550. His legal fees, including land transfer taxes and disbursements,
are $875.The movers charged $1200 for moving his furniture and other
belongings, and the company he works for paid half of this. The family
decided to install new carpets into part of the house at a cost of $2400
plus PST and GST (7% each). He did the installation himself, and so
there were no installation charges. They also bought a new fridge for
$940 plus PST and GST (7% each) to replace the old one that did not fit
into the new kitchen. The previous owner had paid the property taxes of
$2350 for the period January 1 to December 31, and he had to pay for
his share of the taxes. The cost of hooking up telephone and TV are
$45.
Determine the additional costs of moving for Mr. T and his family.

22. Ms. Johnston has decided to buy a home. She requires a $65 000
mortgage. The mortgage interest rate is 7.75%, and she will repay
the mortgage with monthly payments. She needs to decide whether
she will select a 20- or 15-year amortization term. How much do her
monthly payments increase, and how much money will she save if
she chooses a 15-year term instead of a 20-year term? Would you
advise Ms. Johnston to get a 15- or 20-year mortgage? Why?
HOMEWORK

23. T. Bekka needs a $105 000 mortgage which he will repay with monthly
payments in 25 years. The first bank he visits offers a mortgage at 8.5%,
and the second bank at 7.9%. HOMEWORK
1. How much does he save each month if he takes the second
offer?
2. How much does he save over the life of the mortgage if he
takes the second offer?