A window dedicated to taxpayer affairs. The definition of tax window is a window set up by government tax authorities or tax departments to handle taxpayers or taxpayers' affairs. The tax window is usually used to handle tax-related affairs such as tax declaration, tax registration application and tax payment. Through the tax window, taxpayers can communicate directly with the tax authorities and complete various tax affairs. This will help to improve the convenience and satisfaction of taxpayers and promote the efficiency and transparency of tax collection and management.