Scam IRS caller; messages left indicate there is an arrest warrant for you from the IRS and to call them back.

Says to call immediately.  Arrest/lawsuit from IRS. Vital that I call back right away.

There is a widespread 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

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

The caller sounds like a robot and says IRS is watching my address and need to contact immediately! Calls daily.

Are you kidding me? People cannot fall for this crap.  A Pakinstan or Indian accent, leaves a message on machine.....says they'll impound things,they're watching the house. As IF I have an IRS problem....ha!