There have been numerous cases of elder abusers posing as IRS agents on the phone and demanding payments for some made up past due bills. The IRS said they would never call people without first sending a letter, and now they have reversed a decades-old policy where IRS agents would show up on your doorstep to collect unpaid taxes and unfiled tax returns. The Treasury Department said it was reversing its policy due to fears that anti-government and anti-tax groups would track down IRS employees with malevolent intent. So be assured that any phone call or in-person visit from a supposed IRS agent is a scam.