If the caller is an IRS employee with a legitimate need to contact you, please call them back using the appropriate online resources.View your tax account information online or review their payment options at IRS.gov to see the actual amount owed.If you receive a phone call from someone claiming to be from the IRS but you suspect they are not an IRS employee: While the IRS does not endorse any solution or brand, a limited sample of the available options are: Easy to install call blocking software for smartphones is available. Blocking these types of calls is one strategy taxpayers should consider. IRS impersonation telephone calls – as well as other types of unwanted calls (e.g., telemarketing robocalls, fake grants, tech support, sweepstakes winnings, etc.) remain popular scams.