https://www.treasury.gov/tigta/contact_report_scam.shtml
But how do you tell for sure? As I reported back in August, here is a short list of things IRS will not do.
- Angrily demand immediate payment over the phone, nor will the agency call about taxes owed without first having mailed you a bill.
- Threaten to bring in local police or other law-enforcement groups to have you arrested for not paying.
- Demand that you pay taxes without giving you the opportunity to question or appeal the amount they say you owe.
- Require you to use a specific payment method for your taxes, such as a prepaid debit card.
- Ask for credit or debit card numbers over the phone.
Your Constructive Comments are Welcome!