Hello, U.S. developers are required to enter a Social Security Numbers when submitting payment information. This is used for verification purposes. All tax information should be submitted via the Tax Identity Interview located in the "Settings" menu of your Developer Portal. Once your Tax Identity Interview has been validated by the IRS, you will be eligible to receive payments for Appstore earnings. 1099 tax forms, for the previous year, are mailed out at the end of January. 1042-S tax forms, for the previous year, are mailed out at the end of March. All tax documents will be mailed to the address submitted via the Tax Identity Interview. If you have any specific questions regarding the your payment information, Tax Identity Interview, or the status of your tax documents, please submit a detailed inquiry via the "Contact Us" form in your Developer Portal.