Doing a background check without a Social Security number from a rental can often be done. I was told I needed to fill out a rental application (where ssn is required) before viewing it because he gets several requests a day.A social security number is not mandatory for a credit check. You can order a credit report with a name and address. Since the SSN is a required field, have them temporarily enter any 9-digit number so they can continue filling out their rental application and complete it. Yes, they need a social security number. A typical background check only requires an individual's name and other information, while a credit check involves an SSN check. Do not include personal identifiers such as social security numbers on the copy of the documents that you file with the court. Do not include personal identifiers such as social security numbers on the copy of the documents that you file with the court. First social security number (SSN) or your individual taxpayer identification number (ITIN) shown on the return.