USCIS Guidance on Payment of N-400 Application Fee with a Credit Card
You may pay for your N-400, Application for Naturalization, using a credit card. There is no additional fee to pay with your credit card. The N-400 is the only form that can be paid for by credit card using the G-1450, Authorization for Credit Card Transaction.
Acceptable Credit Cards
You may use Visa, MasterCard, American Express and Discover. You may also use gift cards with Visa, MasterCard, American Express and Discover logos.
Vijay Durgham guided us with the labor certification process very professionally. Though our organization was new to the process, he showed a lot of patience and expertise in successfully completing this for us.
There have been many instances where his colleagues have assisted me in matters not quite related to this process either.
A big thanks to him and his team.