I got a CP11 notice claiming I miscalculated my taxes and now owe money, what specific documents do I need to mail back to prove my original return was correct?

Question

Kohari Gonzalez Oneyear & Brown · Accepted Answer

A CP11 notice usually means the IRS adjusted a return and believes there is still a balance due, so the response often depends on what item was changed and whether the original filing included all supporting records. Relevant documents may include the filed return, wage and income statements, receip For an answer applied to your exact numbers, bring this question to a licensed KGOB CPA in a focused session and leave with a clear next step.