Tax information center : IRS : Audits and tax notices

IRS Letter 3173 – Third Party Contacts

The IRS has contacted third parties to help figure out what you owe.

Type of Notice: Return accuracy

Likely next step: Address an IRS tax audit

Also see: IRS penalties, IRS bill for unpaid taxes

You were previously notified by the IRS that third party contacts would be made either to determine your tax liability or to collect on a tax liability.
You asked the IRS to give you a list of the third parties the IRS contacted.
The IRS sent Letter 3173 to provide you with the list of the third parties contacted during the IRS’ investigation.

Notice deadline: N/A

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