The Illinois Estate Claim Form is a legal document used to claim an inheritance from an estate in the state of Illinois. This form is typically filed by a beneficiary of the estate when they are entitled to receive funds or assets. The form must be completed and submitted to the probate court of the county where the estate is being administered. There are two types of Illinois Estate Claim Forms: Form 735.40, which is for claims against a Decedent's Estate; and Form 735.41, which is for claims against a Trust. Both forms require the claimant to provide information about themselves, the estate or trust, and the claim. The form must be signed and notarized before it can be accepted by the court.