I made a huge mistake with my 401(k) and incurred a $300k tax bill - am I totally stuck?

The rapid rollover of $740,000 to a Roth IRA led to an unexpected tax bill of $300,000, revealing the complexities of retirement account conversions.

A commenter emphasized that under 2018 laws, one cannot reverse such conversions, prompting the suggestion to plead the case to the IRS for potential relief.

The consensus among responders indicates that hiring a CPA is crucial for navigating complex tax matters instead of contacting the IRS directly, which could lead to further complications.

Many Bogleheads expressed confusion over the OP's decision to convert a large 401K to a Roth, highlighting a lack of understanding of tax implications.

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