She already implied, if not outright stated she authorized her pin signature. So I repeat, unless she is planning on committing more fraud, she is toast. If you can show me a court case, where a spouse was absolved of liability for a tax return they authorized, because they claimed they were to stupid to look at it and know it was fraudulent.... Wait...just in...OP could look at the return and instantly know it was fraudulent. I would love to see a court case where the spouse in a legally filed return was absolved of liability because they claim they decided to authorize/sign it, without bothering to look at it.
Hint... Ignorance of the law is no excuse.
OP here. No I never implied or stated that I gave him a PIN or electronic signature authorization. As I stated originally he prepared the tax filings every year himself, secretly and without my knowledge. I never once signed electronically nor authorized a PIN since I never had one. Again, he prepared them fraudulently and did not want my review of the filings because he was submitting fraudulent exemptions which he knew I would not okay. I just recently learned of his activities after the divorce. I fully acknowledge that I should have taken much greater care in overseeing his handling of the filings. We were married for 20 years and I trusted him at the time. Basically he scammed the IRS and myself. My questions were as to how best I can handle the situation. Thank you.