Got a pre-recorded message claiming legal action had been filed against me and instructed me to call another number as soon as possible before I was arrested.
Was very fish - after 20 minutes of talking I was being instructed to go have money "vouchers" made at... TARGET!!!
Buahaha!
Here's the scary part though:  The info they had was VERY similar to some real tax issues I am dealing with.

So, I think these scam artists are getting inside information, they know WHO to pressure and HOW.
That's more scary than the scam itself.

Fake southern drawl by male voice, "United States Treasury, Officer Brian."  Blocked bogus call.  May refer him to acting lessons. Idiots.

I got a call saying I owe the IRS Taxes some money, if i didn't pay I would go to jail. They told me to get a money (Vouchers) at target for $500 I only had 45 min. to do it or the LAW INFORCEMENT will be here to pick me up....

computer-generated voice identify itself as IRS agent.  threatening law suit in federal court and arrest.

Said they were IRS calling about illegal case filed against organization. Call back immediately. It was a recorded call.