I build my 1st home 2012 as principal place of residence. After one year I am thinking to change from principal place of residence to Investment property due to going overseas. I need advice. 1st I need to know how can I change from principal place of residence to Investment property? what are the benefits? Due to overseas movement Do I need to change from principal place of residence to Investment property? How much tax I need to pay? Say example, currently My weekly mortgage $550 but rent income will come weekly $450 including including real estate fee 10%.

I have no knowledge about the property investment. Please advice me which is the best one?