I have received, on the same day, multiple calls from multiple phone numbers - with exactly the same message threatening me with litigation. All calls with same "case" number, all delivered by the same halting female voice. Pretty stupid even for a scam operation. Just ignore, provide NO response and block each number when there are multiple numbers.
Same phone call like last week but two different numbers, I no issues with the IRS. People are crazy they'll do anything to get your personal information
SCAM IRS call. Don't let them scare you. Report here: https://www.treasury.gov/tigta/contact_report_scam.shtml
Then block the number and move on. The IRS will NEVER contact you by phone regarding issues of owed taxes. They will send you a letter by US mail.
Just got this call at my business line. I don't give that give that number out for personal business. This has to be a scam!! No Business name given or any kind of idenity given by the computerized voice caller.