Roth IRA's tend to have their own jargon.  Here's 10 common questions courtesy of the Motley Fool.

Q. I've heard from a friend that the AGI limitation for a Roth IRA is $100,000. I've heard from other friends that the actual AGI limitation is much higher. Which is it?

A. It depends on whether you're talking about a "conversion" or a "contribution."

If you're talking about converting your regular IRA to a Roth IRA, then the AGI limitation is $100,000 for all filing categories, except for married folks filing separately. They're effectively prohibited from making a conversion regardless of their AGI, unless the couple is separated and has lived apart for the entire tax year.

But, if you're talking about making a contribution to a Roth IRA, then the rules are a bit different. The AGI limitations depend on your filing status. If you're single and your modified AGI less than $110,000 (or married with modified AGI of less than $160,000) you'll be eligible for at least a partial Roth IRA contribution.