Research
Research Studies
Our analyses of published IRA research, including IRS tax data, ICI household surveys and clearly labeled provider reports. Each article explains its sources, dates and limits; the underlying research belongs to its publishers.
Study No. 1 · Published 2026-05-27
The Backdoor Roth, by the Numbers
How a 2010 rule change reshaped high-earner retirement saving: conversions jumped 847% to $64.8B the year the $100K income limit was repealed — with 79% of the dollars coming from filers above $100K. Four charts, an interactive explorer, and downloadable IRS data.
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Data Brief · Updated 2026-09-27
Roth IRA Owners by the Numbers
ICI's 2025 household data on Roth ownership, contribution participation and withdrawals, plus a separate Fidelity Q2 2026 balance note. Understand household versus account figures, averages versus medians, and what the comparisons cannot establish.
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