The Pennsylvania Refund Application is a form used to claim a refund on taxes paid to the state of Pennsylvania. It can be used for both individuals and businesses. The application has two main types: the Pennsylvania Personal Income Tax Refund Application and the Pennsylvania Business Taxes Refund Application. The Personal Income Tax Refund Application is used to claim a refund of taxes paid on a personal income tax return, while the Business Taxes Refund Application is used to claim a refund of taxes paid on a business tax return. Both applications require the taxpayer to provide information about their income and expenses, as well as any other applicable information. Depending on the type of refund, additional documents may need to be included with the application. Once the application is complete and all required documents have been submitted, the taxpayer can submit it to the Pennsylvania Department of Revenue for processing.