you need Application form CIT 002, online physical presence calculator, photocopies of your all passport including stamps of last 5 years, Knowlegde of english (IELTS/CLB/CELPIP or college/university Degree/diploma), photocopy of any kind of ID (licence/ healthcard but NOT PR card), 2 passport size photos within last 6 months, Fee receipt of $630 and document checklist CIT 0007.
it doesn't matter if you are working in last 5 years or no. but you have show that you were paying taxes for 3 years within last 5 years.