Individual members of the Gulf Cooperation Council (GCC) are, however, unlikely to impose income tax unilaterally.
The prospect of drastic reductions in oil revenues and the resultant fiscal deficit has forced the six countries to examine whether implementation can be done earlier than 2012, an expert close to the matter told the Emirates Business.
GCC member countries have been grappling with the prospect of a significant contraction in energy income from oil and gas exports next year and the spectre of budgetary deficits.
There is a need to make the GCC monetary system more comprehensive and forward-looking. A modern tax system is one of the methods of breaking the traditional way of handling the fiscal system. It could be the first step towards monetary globalisation, an analyst said.
Foreign banks are taxed at the rate of 20% on their taxable income in Abu Dhabi, Dubai and Sharjah. Oil companies pay a flat rate of 55% on their taxable income in Dubai and 50% in the other emirates.
There are likely to be other ramifications of tax implementation too because one of the Gulfs largest attractions for foreign investors and expatriate workers has been the absence of income tax.
The International Monetary Fund has, however, welcomed the UAE proposal to implement a value-added tax from 2010.