Scammers frequently will claim to be IRS agents, claim that you owe money, and then demand immediate payment through Western Union or with a pre-paid money card. The IRS will not specify those means of payment. Sometimes the scammer will threaten arrest or deportation if you do not comply immediately.
If you receive a call like this, hang up and then report it to the Treasury Inspector General for Tax Administration at www.tigta.gov.
Take a look at this video from the US Department of Treasury and pass it on to your friends, family and neighbors:
US Department of Treasury:
Webinar tomorrow, January 26, at 11:00am PST on Tax Identity Theft- https://www.ftc.gov/news-events/events-calendar/2016/01/webinar-consumers-tax-identity-theft