What are the main eligibility requirements for applying for U.S. citizenship through naturalization, and how can an applicant determine whether they meet the residency and physical presence requirements before filing Form N-400?

To qualify for U.S. citizenship through naturalization, most applicants must first be lawful permanent residents for at least five years, although spouses of U.S. citizens may qualify after three years if they meet specific requirements. Applicants must show continuous residence in the United States and physical presence for at least half of the required residency period. They must also demonstrate good moral character during the statutory period. Before filing Form N-400, applicants should carefully review their travel history, tax records, and any past legal issues to confirm that they satisfy USCIS requirements and avoid complications during the application process.

In addition to residency and physical presence requirements, applicants must also demonstrate the ability to read, write, and speak basic English, unless they qualify for an exemption due to age and length of permanent residence. Applicants must also pass the civics test covering U.S. history and government. USCIS evaluates good moral character by reviewing criminal records, tax compliance, and honesty in previous immigration filings. Preparing documentation in advance, reviewing eligibility rules carefully, and ensuring that all information on Form N-400 is accurate can significantly improve the chances of a successful naturalization application.