In 1974, the Employee Retirement Income Security Act (ERISA) created individual retirement accounts (IRAs). Congress initially designed IRAs to have two roles: (1) to give individuals not covered by retirement plans at work a tax-advantaged savings plan, and (2) to play a complementary role to the employer-sponsored retirement system by preserving rollover assets at job change or retirement. Over the past 35 years, this flexibility has helped millions of U.S. households save for retirement through IRAs.

eData are estimated.
pData are preliminary.
Note: Total IRA assets include traditional IRAs, Roth IRAs, and employer-sponsored IRAs (SEP IRAs, SAR-SEP IRAs, and SIMPLE IRAs). Sources: Investment Company Institute, Federal Reserve Board, American Council of Life Insurers, and Internal Revenue Service Statistics of Income Division
IRAs have been one of the fastest growing components of the U.S. retirement market during the past decade. Totaling $4.1 trillion in assets at the end of the third quarter of 2009, IRA assets represented 26 percent of the $15.6 trillion U.S. retirement market, according to the Investment Company Institute. Assets held in IRAs have increased on average 10 percent per year, from $636 billion in 1990.
Millions of Americans use IRAs to save for retirement. An estimated 46.1 million U.S. households, or 39.3 percent, owned IRAs as of 2009. An estimated 36.6 million households owned traditional IRAs, making it the most common type of IRA. A total of 17.0 million households owned Roth IRAs, and 9.6 million U.S. households owned employer-sponsored IRAs such as SEP IRAs, SAR-SEP IRAs, or SIMPLE IRAs.
At the end of the third quarter of 2009, an estimated 46 percent of IRA assets were held in mutual funds, while the remaining assets were managed by brokerage accounts, banks, and insurance companies. In 1990, mutual funds’ share of IRA assets stood at 22 percent.
IRA assets held in mutual funds represented about 17 percent of total mutual fund assets at the end of the third quarter of 2009, or $1.9 trillion.
At the end of the third quarter of 2009, 42 percent of mutual fund assets in IRAs were invested in domestic equity funds. Foreign equity funds held 13 percent, hybrid funds (which include the bulk of lifestyle and lifecycle funds) held 16 percent, bond funds held 16 percent, and money market funds held 13 percent of IRA mutual fund assets.
Tax legislation, enacted in 2001 and 2006, contained several significant provisions designed to encourage greater retirement savings, including gradual increases in annual IRA contribution limits. In 2002 through 2004, the annual contribution limit for both traditional and Roth IRAs was $3,000. The contribution limit increased to $4,000 for tax years 2005 through 2007, and to $5,000 for tax years 2008 through 2010. Furthermore, individuals aged 50 or older may be eligible to make additional “catch-up” contributions.
ICI offers a guide to understanding mutual funds, as part of its Investor Awareness series that includes information on retirement planning.
ICI also conducts research on U.S. household ownership of IRAs and tracks assets and other statistical data on the IRA and defined contribution plan retirement markets. In addition, research has also analyzed the history of IRAs and the evolving role of IRAs in U.S. retirement planning.