How Do You Divide a Two-Family House Financially?
July 23, 2001, Reviewed August 8, 2007
"My family is looking to buy a two family house for $200,000 with
another family. We have no cash but the other family will put 20%
($40,000) down for both of us. How do we divide up the mortgage payment
and the ownership shares?"
There are two fair ways to structure the deal. The first method assumes
you are equal partners in owning the house -- both of you own 50%.
Property taxes and maintenance costs are shared 50-50. However, you
financed a larger part of your purchase than the other family. Your
share of the mortgage is $100,000 while your friend's share is only
$60,000.
In this arrangement, you pay 5/8 of the mortgage payment (100 divided by
160) and family two pays 3/8. If you sell the house before the loan is
paid off, you receive 1/2 the sale price less 5/8 of the remaining loan
balance, while family two receives 1/2 the price less 3/8 of the
balance.
The potential drawback of this arrangement is that you might not be able
to afford 5/8 of the mortgage payment. In that event, you might opt for
an alternative arrangement that assumes that your friend’s $40,000 is
used to acquire more of the house rather than a smaller part of the
loan.
In this arrangement, your friend owns 3/5 of the house -- 120 divided by
200 -- and you own 2/5. Your friend must also pay 3/5 of the taxes and
maintenance. The mortgage payment, however, is split 50/50. If the house
is sold before the loan is repaid, your friend gets 3/5 of the equity
(sale price less loan balance) and you get 2/5.
Both of these arrangements are good for you because your friend’s down
payment reduces mortgage costs for both parties. If you were on your
own, you would pay either for mortgage insurance or a significantly
higher interest rate. Don’t be too surprised if your friend suggests, as
compensation for reducing your costs, that you pay a little more than
5/8 of the mortgage payment in arrangement one, or accept a little less
than 2/5 of the equity in arrangement two.