Proof of EntitlementFigure 3.11.14-19 shows an example of editing a return with a Proof of Entitlement (approved Form 1128). Pictured is the top third part of a completed 2024 Form 1041. The top of the return is notated Form 1128 Approved 04/13/2023. The taxpayer has shown a tax period beginning January 1, 2024, and ending September 30, 2024. The edited tax period of 2409 is written to the left of the preprinted calendar year.