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November 30, 2015

The Impact of Rising Student Loan Debt
on Mortgage Borrowing
Yuliya Demyanyk and Daniel Kolliner

Over the past 10 years, student debt has been increasing, both in terms of the total amount of debt
outstanding and the number of borrowers. From 2005
to 2015, outstanding student loan debt rose from $364
billion to $1.2 trillion, and the percentage of people
aged 18 to 30 with a student loan increased from
27% to 40%. Even after total consumer debt started
to decline during the Great Recession, student loan
debt steadily increased at an average quarterly rate of
3.2%. The sharp rise in student loan debt has raised
concerns that young people with a lot of student debt
may be having trouble getting a mortgage or other
types of loans. In this article, we look at whether the
increase in student loan debt could be responsible for
the decline in mortgage borrowing by people who are
between the ages of 18 and 30.

Student Loan Market
Millions of borrowers

Trillions of dollars

45

1.2
Loan amount
(right axis)

40
35
30

Number of
borrowers
(left axis)

25
2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015

As the percentage of people 18 to 30 with student
debt increased from 2005 to 2015, the percentage
of those with a mortgage declined. In 2005, prior to
the recession, 11% of young people had a mortgage,
but that number has since fallen to 7%. While the
total number of mortgages has declined for most age
groups, part of the drop in young people’s mortgage
borrowing may be due to an increase in the number of
people with student loans.

Notes: Shaded bar indicates a recession. Last data point: 2015:Q2.
Source: Federal Reserve Bank of New York’s Consumer Credit Panel/Equifax,
authors’ calculations.

1.0
0.8
0.6
0.4

A major constraint for getting a loan can be how much
debt a person already has. Lenders calculate the ratio
of a borrower’s debt payments to his or her income
and consider this number, called the debt burden,
when they decide whether a borrower can take on
more debt. To calculate the debt burden imposed by
student loans, we compare the average student-loan
debt payment to the average income of someone
who has at least some college education, which accounts for the fact that people with student loans have
some higher education, and thus usually a higher
income. Using this calculation, we see that studentloan payments as a share of income is currently over
20%. Having over 20% of one’s income dedicated to
student loan payments makes it more difficult to take
on a mortgage, or other debt, which can comprise
30–45% of a person’s income.
When the share of young borrowers with a student
loan was relatively low, about 10% of young borrowers
with a student loan had a mortgage, which was nearly
identical to the percent of young borrowers without a
student loan who had a mortgage. After the recession,
the general trend was for young people to have fewer
mortgages than before the recession, which was likely
due to tighter lending standards and a down economy.
However, there was a sharp decline in the percent
of young borrowers with a student loan who had a
mortgage in 2009, compared to the milder decline
for those without a student loan. This sharp decline
coincides with the increased share of young borrowers who have a student loan. A plausible explanation
for this larger decline in mortgage borrowing could be
that banks would no longer lend to these borrowers,
or that young borrowers with a student loan could not
afford a mortgage.
The percentage of young people with a mortgage
varies by state. Prior to the recession in 2005, the
percentages in each state were relatively similar for
young people with and without student loans, with
the exception of a couple of central states, where
mortgage rates were higher for those without student
loans. However, the most recent data indicate that
there are now stark differences between borrowers
with and without student loans. Along both coasts, the
share of young people with a mortgage is much lower

Share of Young People with Student Loans
or Mortgage
45

Percent

Percent
11

40

10

35
30

Share with a
student loan
18−30 (left axis)

9
Share with
a mortgage
18−30
(right axis)

8

7
25
2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015
Notes: Shaded bar indicates a recession. Last data point: 2015:Q2.
Source: Federal Reserve Bank of New York’s Consumer Credit Panel/Equifax,
authors’ calculations.

Share of Young People with Mortgages
Percent
11
10
9
8

No student
loans,18−30

7

All, 18−30

6

With student
loans, 18−30

2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015
Notes: Shaded bar indicates a recession. Last data point: 2015:Q2.
Source: Federal Reserve Bank of New York’s Consumer Credit Panel/Equifax,
authors’ calculations.

for those with student loans than those without. Additionally, this relationship holds for parts of the central
United States as well. When looking at these trends
across time, it appears that almost all of the states
have seen a general decline in the rate of mortgage
borrowing from young people, but the decrease is
consistently more pronounced for borrowers with a
student loan.
While it’s unlikely that student loans are the sole
factor for the decline in mortgage borrowing across
the United States, it is hard to ignore how the recent
surge in student loan debt is changing the debt portfolio of young borrowers. With over 40% of young
borrowers having a student loan, and debt payments
comprising 20% of their income, it makes it more and
more difficult for young people to take on a mortgage
in the first few years after attending college. And as
the number of student loans continues to rise, it is a
trend that is likely to continue.

Young People with Mortgages in 2005

Young People with Mortgages in 2015
Borrowers with Student Loans

Borrowers with Student Loans

0 − 7.5%

Borrowers without Student Loans

7.6% − 12.5%

Borrowers without Student Loans

12.6% − 20.0%

Source: Federal Reserve Bank of New York’s Consumer Credit Panel/Equifax, authors’ calculations.

Yuliya Demyanyk is a senior research economist in the Research Department of the Federal Reserve Bank of Cleveland.. specializes in
research related to household finance, mortgage markets, financial intermediation, and banking regulation.
Daniel Kolliner is a research analyst in the Research Department at the Federal Reserve Bank of Cleveland. His primary interests include
urban economics, banking, and economic history.
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