Just got a call from "Private Caller". Picked up and a robotic voice told that this was my final warning and that IRS was filing a law suit against me. Left me the number to return call 951-386-9708.

I got part of a recorded message about how this would be my "final warning" (I wish!) and that I would be arrested if I didn't call back for my "case number."  I figured it was an IRS scam, even though my machine cut off the first part of the message and the IRS was never mentioned in the part that ended up being recorded.  And if that wasn't enough to know it was a scam, the caller ID gave it away - Cell Phone, CA!

Just got a call from 951-386-9708.On my answering machine.BS.

This number claiming to be the IRS called my elderly father who is 87 years old and scared him regarding a lawsuit they are filling against him for unpaid taxes, which he does not have. I have worked for an accounting firm for 28 years and I know first hand the IRS NEVER CALLS YOU!!  They contact you by mail. If you go to the irs.gov web site they have information about these scammers.

Total scam.  Originates in either India or Pakistan.   Block and ignore.   DO NOT RETURN THE CALL!
See:  http://www.irs.gov/uac/Newsroom/IRS-Reiterate ... -Telephone-Scam

Report them:
https://www.treasury.gov/tigta/contact_report_scam.shtml
I’m an Enrolled Agent with the IRS (Inactive). IRS does not initiate contacts by phone.  US mail only.   IRS does not file lawsuits.  IRS has enough administrative authority under the IRS Code and related regulations to collect all taxes lawfully due the federal government.     Court action, if any is handled by the DOJ and all parties are entitled to legal assistance if it is a criminal matter.  But--tax disputes are for the most part civil matters.  90% of all IRS tax disputes are settled administratively.  IRS has absolutely no authority to call on local law enforcement for anything. Local law is never involved in IRS tax disputes. IRS does not threaten to involve local law enforcement or to arrest you for nonpayment of federal taxes. IRS has no powers of arrest as related to ordinary tax disputes. Having a deficiency in taxes owed by way of audit is NOT a crime. IRS does NOT issue warrants.  Only judges are allowed to do that.  IRS does not cold call anyone and demand immediate payment of  money.  IRS does not ask for financial information over the phone.   IRS does not accept Green card money paks or similar type cards for payment in any case.  No one is prosecuted for ordinary tax disputes. IRS has absolutely no authority over anyone's professional license. Professional licensing is handled by state governments.  Yes, levies on property to satisfy an existing tax obligation do occur, but only after a very long period of negotiation. And yes, liens are placed on individuals but  usually after a lot of negotiation and a failure to reach a settlement.    All determinations of tax liability are subject to appeals.  All  contacts by the IRS are initiated by US mail.