i got the same and they threatened me to send me to jail if I didn't pay for the money

This number (813-398-0913) just called (9 Jun 15 at 09:30) me saying they were Kay (or Kate) Anderson (that's what it sounded like) with the investigating office of the IRS stating I had a federal tax lein, a warrant and other charges that are likely to be pressed against me.

The lady first started off with "this message is from tennant 4" and then went into the IRS stuff.  This person had an obvious Indian (not Native American) accent.  They called twice within a minute.  The first time the number came up, it showed "KJ DSKL" on my caller ID.  The second time, it came up as an unknown number.

Just received the same as DeanH. Women called herself Jessica with an obvious Indian accent. As soon as I mentioned I will wait for the letters in the mail and let my lawyer handle it, she hang up. Who can we report this to?

Got this morning the same call.
I did not get to the point they requested money from me, but told them that to verify this was not scam I needed them to provide my with my SS # and that they needed to talk to my accountant. They hung up.
He really pushed that I would be arrested in the next 2 hours, and that IRS agents will show up with police officers.

They did the same to me please call the irs they will give you a website to place a complaint