In December 2020, I rolled over my wife's 401k for over $348,000 from a previous employer and withheld 10% for taxes into her current Roth IRA and now I am being taxed more than $52k for this transaction in addition to the 10% I already took on this transaction. They sent me a check in her existing Roth IRA's name with the 10% tax taken out already and I bought more shares of the current mutual fund in her already existing Roth IRA. What can I do to avoid paying the large federal tax burden? Not sure why I am being taxed so much for this.
Thanks,
Dave
