This research is about Defaults of Budget User Authorities in the Implementation of Goods and Services Procurement Contracts in work contracts for the procurement of goods and services for Cliff Safety and Normalization of Kr. Peuto, North Aceh District. The results of the study indicate that the cause of the default of the Budget User Authority in the Work Contract for the Procurement of Goods and Services for Cliff Safety Works and the Normalization of Kr. Peuto, North Aceh District, was due to the Negligence of the Authority of the Budget User of the Aceh Irrigation Service in allocating the budget for payments to PT Aldy Jaya Utama and the change of leadership wheel at the Aceh Irrigation Service. The basis for the Judge's consideration in deciding the default case is the presence of a Construction Contract Agreement, Work Commencement Letter (SPMK), andthe results of Forkopimda meeting resumes, as well as other documentary evidence which was taken into consideration by the judge to declare that the partyProxy of Budget Users for the Aceh Irrigation Servicehas committed an act of defaultin the decision of the Banda Aceh District Court Number 4/Pdt.G/2019/PN. BNA. The principle of legal certainty and the principle of justice for the parties in decision Number 4/Pdt.G/2019/PN. BNA has been fulfilled. The decision has reflected the principles of legal certainty and justice for both parties, in which the panel of judges granted the claim for material and immaterial compensation submitted by the Plaintiff.