You said W-2G so I am assuming this is for gambling winnings. If not, correct me, but the advice is generally the same whether the income was from gambling (W-2G) or wages (W-2).
It sounds like there are several issues at play here. Accountants may be held liable like most professionals for breaching their duty of professional conduct. Whether the accountants advice falls below the level owed to your wife as the client is a question better suited for a civil attorney.
As a tax attorney, my concern in this matter would be whether the funds withheld from your wife were probably deposited with the IRS and State. Additionally, if the funds were not properly allocated, does your wife now have a tax liability owed to the IRS or State or is she owed a refund.
I would say the first step would be to request transcripts from the IRS to determine what was reported to the IRS and what was deposited in the form of withheld taxes. From there, you will have a better understanding of what mistakes were made by either the withholding agent or the accountant.
Best regards,
Adam Brewer
Answered on Feb 25th, 2014 at 1:08 PM