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Sean Mullaney

Goodreads Author

Website

https://fitaxguy.com

Twitter

SeanMoneyandTax

Genre

Business, Nonfiction

Member Since

August 2022

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Sean Mullaney is a financial planner and CPA licensed in California and Virginia. He operates a solo financial planning firm in California. Prior to establishing his own firm, he had a long career working for Big 4 accounting firms and the IRS. Employed by his own firm, he is one of millions of Americans—solopreneurs—who are self-employed or work for their own small companies. He advises solopreneur clients on the Solo 401(k) and has one himself.

Sean earned his BSBA in accounting, his master of laws in taxation, and a certificate in financial planning from Georgetown University. He received his juris doctor from the George Mason University School of Law.

Sean has been quoted in outlets such as The New York Times, Forbes, and Business Insider ...more

89 posts
Sean Mullaney's Blog

The Widow’s Tax Trap and RMDs

People worry about taxation in retirement. In particular, they worry about the taxation of required minimum distributions (RMDs), especially after the death of a spouse. Widows find themselves in the single tax brackets after decades of enjoying the more favorable married filing jointly tax brackets. Widows and widowers finding themselves as single taxpayers is often […]

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Published on January 05, 2026 11:00

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Sean Mullaney’s books

Average rating: 4.59 · 138 ratings · 14 reviews · 2 distinct works • Similar authors

	Tax Planning To and Through Early Retirement by Cody Garrett (Goodreads Author), Sean Mullaney (Goodreads Author) 4.66 avg rating — 96 ratings — 2 editions	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
	Solo 401(k): The Solopreneur’s Retirement Account 4.43 avg rating — 42 ratings — 2 editions	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars

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Sean’s Recent Updates

Sean Mullaney wrote a new blog post The Backdoor Roth IRA After an Excess Contribution to a Roth IRA It happens all the time. People contribute to a Roth IRA only to find out at tax time they made too much income to have made the Roth IRA contribution Read more of this blog post »
Jan 23, 2026 04:33PM · like

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Sean Mullaney

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