To be eligible for an SSS salary loan, you need to be a member of the Social Security System with at least 36 monthly contributions, and at least 6 of those should be within the last 12 months. Additionally, you must not have any outstanding loans or contributions that are unpaid. It's best to check your status through the official SSS website or visit their local office for personalised assistance. Keep in mind that eligibility is ultimately determined by SSS based on your specific circumstances.