There are companies who will insure your lease payments, but you will have to provide them your SSN so they can run a credit check on you. In other words, putting your SIN number on a rental application is not required because a landlord doesn't need your SIN to run a credit check.Rental agents need to know that you have a steady job so you can pay your rent, which you can't have without a Social Security number. No. You are not required to provide your SIN when you submit a property rental application. Failure to provide a Social Security. They also might include your SSN or driver's license number on the rental application unsolicited. Doing a background check without a Social Security number from a rental can often be done. Please make a note on your application if you do not have sufficient rental history. Signer or double deposit may be required. A complete and accurate application listing the current and at least one previous rental reference with phone numbers will be required.