'hidden costs of taxation'. They can be described as the private sector costs of complying with a tax system, over and above the actual amount of tax liability, Furthermore, these costs do not include the public sector administrative costs which are borne by the government. With the introduction of SAS, it is anticipated that a large proportion of taxpayers, particularly the business community, would not complete their own returns, but get a tax agent or tax adviser to complete them. Therefore, their compliance costs are expected to rise. For a tax system to be efficient, its administrative and compliance cost should not be excessive. It should not unduly interfere with economic incentives to work, save and invest and it should be consistent with macro-economic policy (James, 1996). According to
Sandford (1994), there is no reliable evidence to suggest that self assessment increases evasion but there is a great deal of evidence to suggest that countries with self assessment have higher compliance costs. Compared to tax laws in the UK and Australia, the tax legislation in Malaysia is much less complicated. It is, also reassuring to note that the IRB is currently devising a simple tax return form so that the 1.9 million Malaysian