Hi, Please advise how can I get no filer letter for immigration for period 2014 and 2015? I didn't work in 2014 and 2015, my wife supported me financially. Thank you

I didn't work in 2014 and 2015 and I didn't make any income. My wife used to help me until I start working in June 2016. Please advise how can I get none filer litter for 2014 and 2015 for immigration purpose? Thank you very much