To apply for a Pag-IBIG multi-purpose loan, you'll need to prepare several documents. These typically include a valid ID, proof of income like payslips or bank statements, and a completed application form. It's also important to check if you’re a member in good standing and have made at least 24 monthly contributions. For the most accurate and detailed checklist, visit the official Pag-IBIG website or consult their office directly to ensure you have everything required for your application.