Same BS. They left a message - My wife is about to be arrested for tax evasion, fraud and god knows what. She's better call them back ASAP or else! As a side note, my widowed 80-year old mother got one of these calls last month. She answered the call and talked to them - didn't give out any info or anything until she could talk to me (which made them angry - said there was no time for her to call anyone before they arrested her) but it took 2 weeks to get her calmed down again and believing it was a fraud. [***]!
Left a very lengthy voicemail, over a minute, repeating the same phrases about a final notice from the IRS about tax fraud and requesting a callback. Very clearly a scam. If anything, the IRS owe ME money!!!