The Internal Revenue Service regularly adjusts contribution limits to retirement accounts to keep pace with inflation. In the past the adjustment was made somewhat arbitrarily and in round increments of $500 or $1,000 per year.
Starting in 2010 any adjustments made to contribution limits are indexed to inflation.
For 2011 the contribution limits for a Roth IRA and Traditional IRA will remain unchanged from 2010.
For regular contributions the limit is $5,000 in 2011. For catch-up contributions for individuals over age 50 the contribution limit is an additional $1,000, bringing the total to $6,000 per year.
History of Roth IRA Contribution Limits
Contribution limits have changed significantly since the Roth IRA was introduced. In 2002 the limit was only $3,000 and has now increased 66% from that time to $5,000.