I've received the same call. The IRS does not do this. It's a scam to get you to give them your credit card info. I've had a message once before like this, and the guy had an Indian Accent.  This call stated the HAD an arrest warrant and were watching my property. Yeah right,  the IRS sits and watches your property. SCAM ARTIST!!  Maybe I'll call back and mess with the guy. This was a bit odd, as it was a robo call.