I’m filling out my States and it’s asking for my property key number but i don’t know what that is

[DPatel]

Look on your last tax bill, the deed to your property, a title report (which may be in your closing documents) or perhaps even on the appraisal report of your property to locate the property ID number.

[pcompere]

This is my first time filing and I don’t own a property so what should I put