To tell me "IRS is filing lawsuit against you." (Not 'the IRS' or 'a lawsuit') Pre-recorded message with no additional information. Pretty sure if this was real they would use A. proper English and B. would be calling from a Washington DC number and not Washington state...

Lain, just got one of these too today on the answering machine.

They leave a message to call back at this number and say it is the last notice that the IRS is filing a lawsuit against us.  The caller ID shows Olympia, WA.  Sounds like a scam to me, might want money to call off the lawsuit?---I don't know because I will not be calling them back.

I just got home and found that message.  Tried calling and just got a busy signal.  Will not be calling back.  They can call me on their dime if they want to speak to me. good to see some others have posted about this.