In a move to continuously keep the consumers updated, the IRS issues various warnings which affect the consumers financially. Once such warning informs about a phone scam where FAKE IRS agents call individuals demanding back taxes and tell the unsuspecting consumer to pay immediately using a debit-card or wire transfers. The IRS never asks for such payments over the phone.
Please check further details on this scam and steps to take if you receive such calls by visiting the IRS site at

IRS Warns of Phone Scam