This person call to scam when I didn't fall for it he used obscene langue .

Scam, careful don't talk

Got a call saying that it was important to call back, that it was regarding taxes. Not to ignore this call and call back.  It is a scam call - if the IRS was to call, they would leave a different message, and the ID would say so, not California.  Usually you would get a certified letter from them anyways.

Received a call and message (twice today) with the urgency that it was the IRS calling and not to disregard it. Same as Ryz, I know that IRS would contact you by mail FIRST, never a phone call.

Shame that there may not be sufficient resources for law enforcement to bag the scumbags.