A report or declaration made to authorities or an organization (e.g., tax return, notification); the act of filing or officially reporting something.
毎年、確定申告の時期になると税務署が混雑する。
Every year, the tax office gets crowded during the tax return season.
事故が発生した場合は、速やかに警察に申告してください。
If an accident occurs, please report it to the police promptly.
収入が変わったら、会社に申告する必要がある。
If your income changes, you need to report it to the company.