The IRS does not initiate communications
with a "cold call" to unsuspecting people.
Instead
The IRS always sends a letter, first!

There is a widespread IRS (or CRA) or "tax scam" being  practiced by scammers on both USA and Canadian residents.

USA tax payers, click on the "USA_Info" link, below, for lots of information and a reporting site.

USA_InfoUSA tax payers should read this:
http://www.irs.gov/uac/Newsroom/Phone-Scams-C ... 5-Filing-Season

Short answer:
The IRS never initiates a contact via phone.
They always send a snailmail first.

If you were contacted by an IRS impostor, you may file a report, after clicking on this link:
http://www.treasury.gov/tigta/contact_report_scam.shtml

Recent news story:
http://www.wltx.com/story/money/2015/03/12/fa ... -scam/70202814/

Congressional hearing:
http://www.nbcnews.com/business/taxes/tax-imp ... hearing-n341906
Canadian tax payers should read this:
http://www.cra-arc.gc.ca/nwsrm/lrts/2013/l131210-eng.html

This scam is also described as scam #11, here:
http://phonehelp.2truth.com/facts.html

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Please reply to this post, to let us know you read it, or have taken suitable actions to protect yourself.

What Peb said

"This is Officer..."  balh, blah, blah.  Hung up as soon as I heard officer and then looked up 1-800 notes.

I received this call Friday, 6/24/16 @ 11:30 am. Said he was Daniel Wisman from IRS Leagal Dept. and I had criminal lawsuit and needed to call back right away Which I Didnt

Got this call twice today, called back n talked to these nit wits, bunch lil pencil pricks playing little scam while there watching pornhub at the same time no doubt.  They are not IRS but ISR, they are mad caz their Inoperable Scrotum Removed has hurt their feelings.