The contribution amount limits to a Roth IRA are the same as those to a traditional IRA. However, your eligibility to contribute to a Roth IRA depends on your income. You can make a full contribution to each Roth IRA as long as your working spouse makes less than $173,000 in 2012.raditional IRA. The maximum IRA contribution limit is $5,000 for those under the age of 50. For those 50 and older, the contribution limit is $6,000. This contribution limit applies to all IRAs held in each personâs name.