Can American express demand to see your IRS tax returns?

Yes, American Express can request to see your IRS tax returns as part of their credit assessment process, especially if you are applying for a significant credit line or if they are reviewing your account. This is typically done to verify your income and financial stability. However, this request may vary based on the specific terms and conditions of your account or application. It's important to check with American Express directly for their policies on documentation requirements.