This article explores the concept of execution cost in Japan, which refers to the total cost of executing a transaction or project. It examines factors that affect execution costs such as complexity of the project/transaction, number of people involved, availability of resources needed for completion, and regulatory requirements imposed by government agencies. It also looks at strategies companies can use to reduce their overall execution costs such as outsourcing tasks, utilizing technology solutions, streamlining processes, negotiating better deals with suppliers, and reducing overhead expenses.