To apply for a Pag-IBIG multi-purpose loan, you need to be an active member with at least 24 months of contributions. Additional requirements typically include a filled-out application form, proof of income, and valid identification. Depending on your purpose for the loan, you may need to submit additional documents such as a project proposal or medical certificates. It's best to check the official Pag-IBIG Fund website for the most up-to-date requirements and to ensure you have all necessary documentation before applying.