Scam spam robocall. Tape recorded message claiming final notice that the IRS is filing a lawsuit against "you" (whoever "you" may be). That's not how it works. The real IRS sends you a US Postal Service letter if they have any questions (been there, done that). Needless to say, I did NOT call them back. They've called a couple times today. Shows the number they want you to call coming out of the Middleburg, Florida; no telling if that's really where these hucksters are located.
received call thru automated call saying it was the irs did call back pretended I was scared playing the part the guy realized it and started causing at me real bad using all kind of profanity.
Received a missed call from this number, I called back and got a man that didn't speak clear English that said "Internal Revenue Service". Seemed like a scam at that, so I hung up and googled the number and found a lot of other people saying it was a scam too.