The ERCA business income tax declaration form is a mandatory document for businesses to report their income, expenses, and tax liabilities. The manual process of filling and submitting the form can be time-consuming, and errors can lead to penalties and fines. With the increasing use of technology, there is a need to automate the process and make it more efficient. Excel, being a widely used spreadsheet software, can be utilized to design an ERCA business income tax declaration form that can simplify the process and reduce errors.