Questions and Answers

The maximum regular contribution is the lesser of an individual's compensation and that year's regular contribution limit. For 2007, the limit for a regular IRA contribution is $4,000, plus a catch-up contribution of $1,000 for anyone age 50 or older by the end of the year.
A transfer or rollover contribution from another IRA or an eligible employer retirement plan can be any amount.

The Internal Revenue Code and Treasury regulations don't specify a minimum contribution amount. However, some financial organizations do establish minimums, frequently based on the investment type.