The MAGI Limitation on Roth IRA Contributions

During a recent Econome Encore presentation, a questioner asked a question that caused me to do a double take: Do Roth conversions create MAGI (modified adjusted gross income) for purposes of determining whether someone exceeds the MAGI thresholds to make an annual contribution to a Roth IRA?

I did a double take for several reasons. First, the presentation was early on a Sunday morning 😉 . Second, in practice, the issue rarely comes up, for reasons we will discuss later. Third, why wouldn’t income created by a Roth conversion count as MAGI for this purpose? It is taxable income, after all. Fourth, I was pretty sure the rule states that no, Roth conversions do not create MAGI for this purpose. 

I quickly stated that I thought the rule does not consider Roth conversions to be included in MAGI, but I looked it up to be sure. My initial take was correct. Roth conversions are not included in MAGI for purposes of determining whether one can make an annual contribution to a Roth IRA. See IRC Section 408A(c)(3)(B)(i). 

The Creation of the Roth IRA in 1997

It’s a bit of an odd rule, though. Why carve out Roth conversion income from the Roth IRA MAGI test? It’s especially odd considering that actual taxable withdrawals from a traditional IRA or 401(k) create MAGI for this purpose. Why carve out income from Roth conversions of traditional IRAs and 401(k)s? 

It has to do with how Roth IRAs were created. In 1997, Congress created the Roth IRA to be effective starting in 1998. Roths were new. There was likely a concern along the lines of “a vehicle with tax-free growth could be abused.” Thus, there were two features of the Roth IRA subject to a MAGI limitation. Both the ability to make a direct annual contribution to a Roth IRA and the ability to convert amounts from a traditional retirement account to a Roth IRA were subject to a MAGI limitation. See page 40 of the 1997 Taxpayer Relief Act text. 

The MAGI limitations begged the question: how to define MAGI for this purpose? The bill drafters started with a common technique: they found another relevant definition of MAGI already existing in the Internal Revenue Code. Why reinvent the wheel? They started with the MAGI definition used to determine the ability to make a deductible traditional IRA contribution. 

By itself, however, this definition would create a circular definition problem with respect to Roth conversions, as the IRA deduction MAGI definition used starts with AGI and then kicks out certain items. Roth conversions are included in AGI, so to avoid a circular calculation, the bill drafters had to kick Roth conversion income out of the Roth MAGI definition. 

If Roth conversion income was included in the MAGI definition, then the taxpayer would have to test Roth conversions against themselves to determine if Roth conversions were allowed! For example, if AGI was $90K prior to a $40K Roth conversion, the $40K Roth conversion would disqualify itself, as the MAGI limitation on the ability to convert was $100K of MAGI. 

Further, the bill drafters decided to create one MAGI definition for the two different limitations. They could have created two different MAGI definitions, but this would have made a new Code section even more lengthy and complicated. Remember, none of this existed as of 1997 when the bill was written. So, the final bill only had one MAGI definition for both limits. That one definition kicked out Roth conversion income, which it had to do to avoid the circular definition problem with respect to Roth conversions. 

Changes to Roth IRAs

In 2006, Congress repealed the MAGI limitation on the ability to do Roth conversions, effective 2010. See pages 21 and 22 of this PDF of the Tax Increase Protection and Reconciliation Act of 2005. This is what opened the door to the Backdoor Roth IRA starting in 2010.

Interestingly enough, had there never been a MAGI limitation on the ability to do a Roth conversion, the kick out of Roth conversion income from the MAGI limitation on the ability to make an annual contribution to a Roth IRA might not exist. First, there would have been no circular definition problem to solve. Second, it would have been neater to simply reference the deductible traditional IRA contribution MAGI definition and leave it at that. 

But, that’s not how the history of the Roth IRA transpired. We will never know if there would not have been a kick out of Roth conversion income in defining MAGI for annual Roth contribution purposes had today’s rules been the original Roth IRA rules. 

Roth Conversions and Annual Roth IRA Contributions

For *many* taxpayers, particularly those in the FI community, the time to do Roth conversions is not while one is working. When one is working, he or she is likely to (a) qualify for annual Roth contributions and (b) to be in their highest lifetime marginal tax brackets. Usually, the best time to do a Roth conversion is during early retirement rather than during one’s highest earning years. 

As a practical matter, at the time many Americans qualify to make a Roth contribution, they are not likely to be in an optimal Roth conversion posture. Of course, your circumstances could vary. For example, consider someone taking a 12 month sabbatical from the workforce (starting March 1st) who has 2 months of earned income during the year. Perhaps he or she should (a) make a Roth IRA contribution based on their 2 months of earnings and also (b) do Roth conversions based on having a relatively low income for the year. 

Click here for the IRS website detailing the 2023 MAGI limitations on the ability to contribute to a Roth IRA.

While We’re On the Subject of the Annual MAGI Limit on Roth IRA Contributions . . .

My belief is that one of the next changes Congress should make to Roth IRAs is to remove the MAGI limit on contributions. 

Let’s think about this. A 50+ year old billionaire can contribute up to $30,000 to a workplace traditional or Roth 401(k) regardless of their income level. If this is possible, why is there a MAGI limitation on the ability to contribute $6,500 or $7,500 (age 50 or older, 2023 numbers) to a Roth IRA? It makes absolutely no sense, especially considering that some people, though not all people, can get around the MAGI limitation through the Backdoor Roth IRA.

Further, our neighbors to the north have no income limitation on the ability to contribute to a Tax-Free Savings Account, Canada’s equivalent of the Roth IRA. It’s time for Congress to repeal the MAGI limitation on the ability to make an annual Roth IRA contribution.

Conclusion

There’s a bit of an odd rule when it comes to determining MAGI for purposes of determining whether a taxpayer can make a contribution to a Roth IRA. It stems from the creation of the Roth IRA in 1997 and the fact that back then, there was also a MAGI limitation on the ability to convert amounts to a Roth IRA. Today, the kick out of Roth conversion income is a taxpayer favorable rule that is rarely significant in practice. More broadly speaking, I hope Congress repeals the MAGI limitation on the ability to make an annual Roth IRA contribution. 

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