Notice Type
A CP59 notice means the IRS has no record of receiving a tax return for a prior year, and it's asking you to file that return or explain why you weren't required to. It doesn't mean a balance is due yet, but it's the IRS's first step toward determining whether one exists, and this type of notice often fits within our standard $45 notice review as a starting point, since it usually begins with understanding which year is at issue and what your filing history actually looks like.
Before You Respond
A CP59 means the IRS believes a required return was never filed, so it's worth looking into rather than assuming it was already handled. Check the date printed on your actual notice — CP59 notices generally include a deadline by which to file the missing return or respond, and that date is what determines your timeline, not a general rule of thumb. If no return or response is provided by that date, the IRS can prepare a return on your behalf using only the income information it has, which often results in a higher balance than a properly filed return would show, and it can move the account toward further collection notices. Responding before that date, even just to confirm whether a return was filed, keeps more options available.
Know Before You Act
Before assuming a return needs to be filed or that none was ever sent, it helps to understand two things: whether the return was actually filed and simply not yet processed, and whether the IRS's own records match what you believe you submitted. The IRS may be correct that nothing was filed. But there can also be a return that was mailed but not processed, a return filed under a slightly different name or number, or a filing requirement that doesn't actually apply to your situation. Knowing which of these applies to your situation is what determines the right next step.
Start with a secure notice upload and a free IRS notice summary. If you want organized next steps, optional $45 Review & Guidance is a one-time purchase with no subscription. It may include an Action Plan, records to gather, response options, and case questions. When the information and supporting documents provided support a written IRS response, you can use the action steps provided to prepare it yourself or unlock the option for Think Twice Tax to draft a personalized response letter for you.