Joey is a resident of Australia. He earns wages as an investment banker for a Sydney-based firm. In late 2017 he
spent two months working from the Singapore office, who paid him directly. He holds private investments, which pay him dividends in the United States and London. Ignoring double tax treaties, which sources of income does Joey need to include in his income tax return?
a. Only his wages earned in Australia.
b. His wages earned in Australia and Singapore, as these are connected to his employment.
c. His wages earned in Australia and the dividends.
d. All sources of income.