Stevenz, the situation is not as simple as HRGuy or Correct seem to think.
The socialist Govt in Australia passed legislation that came into effect on July 1 2010 that meant that all Aussies who are not deemed as non-residents will be fully taxed on their worldwide income. In the past, income earned outside of Australia did not need to be declared as a resident, or if tax was paid locally, ATO would not tax you in Aust.. To be a non-resident, you must leave Aust for a minimum of 2 years and severe your connections - ie no home there with you wife and kiddies living in it.
The socialist Rudd and Gillard Govts hated the fly-out-fly-in off-shore oil and gas workers from Aust who could be out of Australia for 183 days and pay no tax. Like everything this retarded Govt does they rushed legislation without consultation meaning that hundreds of thousands of Aussies who travel and work outside now have to declare their income and will be taxed on those earnings in Aust. So the Aussie backbacker pulling beers in a London pub for 18 months will be taxed there, and taxed in Australia.
Until your wife and kiddies move to SG, you will likely have to declare your SG income and be taxed in Aust.
Did you vote Labor?
Welcome home Kubes

My only point is to say that Expats should declare non-residency and the qualifications for this vary so check it out.
I think Servicemen and women, merchant seamen etc should receive tax rebates and Expats who qualify as non-resident should not be taxed twice.
However some domestic contributions are required even from non-residents especially towards Health Care and state pensions. This is important.
Also as heavy as Oz taxes are, the benefits are great so OP keep on-side with IR and NHS etc.
Its a small price to pay for the benefits you receive especially if your children are receiving health care; Singapore HC is first class but will devour you!
I speak as someone who has been absent from UK for most of my life and has thumbed my nose at all who claim upon my income.

No regrets.
