If the IRS asks for a response within a specific timeframe, you must respond on time to minimize additional interest and penalty charges or to preserve your appeal rights if you don’t agree.
Report phishing if your correspondence looks suspicious.
The IRS doesn’t initiate contact with taxpayers by e-mail or social media to ask for personal or financial information. Please visit our report phishing page if you receive correspondence that looks suspicious and was designed to appear as though it came from the IRS. You can also call 1-800-829-1040.