To apply for the social pension for senior citizens in the Philippines, you typically need to provide a valid ID, proof of age (like a birth certificate), and a completed application form. Additionally, you may need to submit a certificate of indigency from your local government unit to confirm your financial status. It’s best to check with the Department of Social Welfare and Development (DSWD) or your local office for any specific requirements or updates. They can provide guidance based on your individual situation.