A catch-up provision also applies for plan participants who are age 55 or over, allowing the IRS limit to be increased. This "catch up" contribution limit was set to $500 for 2004, increasing $100 each year until it reached a maximum of $1,000 in 2009. For 2019, the contribution limit was $3,500 for single or $7,000 for married couples and families. For 2020, the contribution limit is $3,550 for single or $7,100 for married couples and families. For 2021, the contribution limit will be $3,600 for single or $7,200 for married couples and families.