The application requirements and the eligibility criteria for receiving the AMEX credit card will include the following: A credit cardholder must at least be eighteen years old. Any credit card applicant must have an annual income of six lakhs and more. They need to have US savings or current accounts in any of the states of the US. The applicant needs to be a US citizen or a legal US resident. You can use any of the government-issued identity cards which have your photograph on them. The latest income slips and your tax records and details must be there. A residence proof must also be submitted.