[best source required] When taxes are due in both countries, the credit is limited to lowering UK taxes incurred and the home country`s tax debt to the same income, which in fact means that you always end up paying the higher total of the two rates. Iceland has several tax agreements with other countries. Natural persons permanently resident and subject to full and unlimited tax in one of the Contracting States may be entitled, in accordance with the provisions of the respective conventions, to an exemption/reduction from the taxation of income and capital, without which income would otherwise be subject to double taxation. Each agreement is different and it is therefore necessary to review the agreement in question in order to determine where the tax debt of the person concerned really lies and what taxes the agreement provides. The provisions of tax agreements with other countries may result in a restriction of Icelandic tax legislation. 4. In the event of a tax dispute, agreements may provide a two-way consultation mechanism and resolve current issues. In principle, an Australian resident is taxed on his or her worldwide income, while a non-resident is taxed only on Australian income. Both parts of the principle can increase taxation in more than one legal order. In order to avoid double taxation of income through different jurisdictions, Australia has entered into double taxation treaties (SAAs) with a number of other countries in which both countries agree on the taxes that will be paid to which country. According to UK rules, it is not established, so it is taxable in the UK only with its income in the UK.