The GDT Tax Prefiling App is a free Android app developed by the General Department of Taxation Cambodia. It is a business and productivity app that provides a convenient solution for small taxpayers to file their taxes. The app is designed to simplify the tax filing process for small taxpayers and improve data management related to buying and selling.

The app's features include pre-filling of tax forms, online payment of taxes, and the ability to track payment history. The app also provides a user-friendly interface that is easy to navigate, making it accessible to all taxpayers. Furthermore, it allows users to stay up-to-date with the latest tax regulations and policies. The app is a great tool for small business owners and individuals who want to file their taxes quickly and efficiently.