If I was a refugee and became a permanent resident, can I claim the NRST on my house?

Yes, if you become a permanent resident within four years of the purchase or acquisition of the house, you can claim the NRST that you paid at the time of purchase. That property should be your principal resident within 60 days of purchase. Any false information or misrepresentation can cause a penalty, fine and/or imprisonment. There will be an audit on the submission of the application.