Catch up contributions help people who are closer to retirement age boost their savings by making an additional contribution every year.
The Economic Growth and Tax Relief Reconciliation Act of 2001 increased IRA contribution limits beginning 2002. The contribution limit rose to $4,000 in 2005 and will reach $5,000 in 2008. If you are age 50 or older, the annual catch-up contribution limit increased to $1,000 in 2006. Thereafter, the limit will be indexed in $500 increments.