Australia has tax agreements with other countries to promote cooperation between Australia and other international tax authorities. Some countries are considered tax havens. In general, a tax haven is a country or place where corporate tax is low or not, which allows foreign investors to set up businesses there. Tax havens generally do not enter into tax treaties. NOTE: The tax exemption/reduction in Iceland provided for in the agreements in force can only be obtained by requesting an exemption/reduction from the Director of Internal Revenue on Form 5.42. Until there is an authorized exemption with registered number, you have to pay taxes in Iceland. Most agreements eliminate the tax revenues of some diplomats. Most tax treaties also provide that certain tax-exempt businesses in one country are also exempt in the other. Generally exempt bodies include charities, pension funds and public bodies. Many agreements provide for other tax exemptions that one or both countries consider relevant to their governmental or economic system.  For persons residing in countries that do not have tax agreements with the United States, any source of income obtained in the United States is taxed in the same manner and at the same rates as set out in the U.S. tax return instructions. The Organisation for Economic Co-operation and Development (OECD) is a group of 36 countries committed to promoting global trade and economic progress.
The OECD Tax Convention on Income and Capital is more favourable to capital-exporting countries than to capital-importing countries. It requires the country of origin to waive some or all of the tax on certain categories of income of residents of the other contracting country. The two countries concerned will benefit from such an agreement if the flow of trade and investment between the two countries is reasonably equal and if the country of residence taxes all exempt income of the country of origin. Several governments and organizations use model contracts as a starting point. Double taxation treaties generally follow the OECD Model Convention and the Official Commentary and Members` Comments on this subject serve as guidance for each Member State`s interpretation.