How can the N-400 application fee be paid?

The N-400 application fee can be paid via check, money order, or online payment, making this option the correct choice. This payment flexibility allows applicants to choose the method that best suits their preferences and circumstances.

Checks and money orders are traditional methods often used for making payments, particularly for those who may not be comfortable with online transactions. Online payment offers convenience and instantaneous processing, which can be beneficial for applicants needing to submit their applications promptly.

Other methods, such as payments exclusively in cash at application centers or solely through wire transfers, do not align with the approved payment options for the N-400 application, which underscores the importance of using appropriate channels when submitting fees to the USCIS.