Capital gains tax
Australia collects capital gains tax only upon realized capital gains, except for certain provisions relating to deferred-interest debt such as zero-coupon bonds. The tax is not separate in its own right, but forms part of the income-tax system. The proceeds of an asset sold less its "cost base" (the original cost plus additions for cost price increases over time) are the capital gain. Discounts and other concessions apply to certain taxpayers in varying circumstances. Capital gains tax is collected from assets anywhere in the world, not only in Australia.