There is a fairly common IRS or "tax scam" being practiced by scammers on both Canadian and USA residents.
USA tax payers should read this:
http://www.irs.gov/uac/Newsroom/IRS-Reiterate ... -Telephone-Scam
Short answer:
The IRS never initiates a contact via phone.
They always send a snailmail first.
Educational post:
This scam is also described as scam #11, here:
http://phonehelp.2truth.com/facts_rev.html
Remember to return here, to 800notes.com, after you look at any of the information at that site, either to post more information, or to let us know you avoided the scam, or to read any further information about that number that others may post.
Got a call today, something about Enforcement by US Treasury...avoid grand jury...criminal offense...blah blah blah from a guy named Dean Martin, no less, lol (sounded like it anyway, could not tell for sure because of the accent). Did not call back and do not intend to.
I have seen more than one post about these scams where the alleged caller happens to have the name of a celebrity. It is rather laughable in many respects.