I just had a caller leave the same message on my voicemail (IRS is filing a lawsuit against me).  My kids and I were very upset by this call.  I am so happy I googled the number and found this link.  It eases my mind.

same here called verified call as IRS called back asked for IRS agents name and ID number....Indian accent when I questioned him further I advised him if this was not the IRS I was calling the Federal Attorney Generals Office and filing a complaint....He told me to go [***] myself and a [***].....That's no way for a Fed to act...I told him to learn to play the game better

Just got a robo call with similar message" final notice the IRS is filing a lawsuit immediately against us".  Know this is a scam to get money or info from you.  IRS does not do business by phone like this. The real IRS  would send a letter. Ignore this call.  DO not respond or give them any info.  You can call your local IRS office and let them know these scammers are calling.

As above, only about 11:10 EST. Robo call recorded in voice mail. Would the IRS actually use a robo-call system to notify a filer of a problem? Not just a problem, but one that has gotten to the point that they are spending the $ to go to court? Shouldn't there be a notice of filing errors first? (I've gotten those.) They'd only go to court if the taxpayer refuses to pay and hasn't appealed the finding or appealed and lost.

From Longview WA.

I just received a call from this number as well.  The caller was an American accented woman, not like the Somali accented one who called a few months ago.  Same IRS lawsuit blah, blah, blah.  Another one you should look out for is one from Microsoft Security (no such entity) claiming they were monitoring my 6 year old computer and that it had become infected.  Unfortunately, my husband fell for the scam and allowed them to remotely take over our computer.  All my credit cards were hacked because I had a file on the desk top with all the numbers listed, silly me.  Times have so changed.  Now you can get mugged sitting at your desk at home.