In this lesson, ComplyPro discusses additional forms and documents that should be collected for information reporting and withholding obligations. Self-certifications are necessary for Automatic Exchange of Information (AEoI) and the Common Reporting Standard (CRS). Withholding statements should accompany Forms W-8IMY to identify payees and beneficial owners. Sourcing statements and invoices are important for payments related to goods and services, indicating the portions and location of performance. Other onboarding documents, such as articles of incorporation and passports, may be required for addressing U.S. indicia.