Most of these tips from the IRS
should be well-known. For example, the IRS does not initiate contact with taxpayers by email. So if you get an email asking you for information that appears from the IRS, it's a phishing scam. More determined scammers are also making phone calls. This IRS tip provides a quick way to deal with this type of call:
If you receive a phone call, fax or letter in the mail from an individual claiming to be from the IRS but you suspect they are not an IRS employee, contact the IRS at 1-800-829-1040 to determine if the IRS has a legitimate need to contact you. Report any bogus correspondence. Forward a suspicious email to email@example.com
Have you received scam IRS calls or letters?