CP75 / CP75A — Documentation Requested

A CP75 or CP75A means the IRS needs specific proof before it will allow the credit or filing status claimed and release any refund, so responding is what moves the review forward. Check the response date printed on your actual notice — these notices generally state a deadline for submitting the requested documentation, and that date is what determines your timeline, not a general rule of thumb. If the requested documentation isn't provided by that date, the IRS can disallow the credit or status and adjust the return accordingly, which can reduce or eliminate the refund. Responding with what's requested by the date on your notice keeps the review moving toward resolution.

Before gathering documents or responding, it helps to understand exactly what the notice is asking you to prove, since these notices are typically specific to eligibility for a credit or a dependent relationship. The IRS may simply need documentation that supports what's already accurate. But there can also be a requirement, like a residency or relationship test, that isn't fully met, or documentation that's harder to produce than expected. Knowing which of these applies to your situation is what determines whether you're supplying proof of something accurate or need to reconsider what was claimed.