What are the reasons for a US citizenship application denial?

There are several reasons for the denial of a US citizenship application. Some common grounds for denial include failing the citizenship test, not meeting the residency requirements, lack of good moral character, providing false information, and not demonstrating a sufficient understanding of the English language or basic knowledge of US history and government. Criminal convictions, misrepresentation, and fraud in previous immigration or citizenship applications can also lead to denial. Additionally, failure to show continuous residence and physical presence in the US or failure to pay taxes can be reasons for denial. Each case is evaluated individually, and it is essential to consult an immigration attorney for guidance to address any potential issues and increase the chances of a successful application.