Hi, i will be working for full 6 months before my last employment here and i am an EP holder. However, after the 6 months, i will be leaving back to my country. I was wondering how is the tax being computed. Will it be as 15% of total salary received for 6 months, e.g. 15% X $5,000 X 6months = $4,500 or it will be pro-rated?