Foundations for a sound tax system: simplicity, certainty and stability
Simplicity Understanding and complying with tax legislation should be as simple and straightforward as possible.2 If taxpayers and their advisers face too complex a tax system and are unclear what is expected of them, this creates the potential for both mistakes and deliberate rule-breaking. Complexity in the tax system distorts the economy, diverting productive energies into non-productive administration. Why is tax so complicated? Tax systems can perform multiple roles: raising revenue, redistributing wealth and regulating behaviour (eg through excise duty on alcohol or ‘green taxes’). These aims may be achieved in several ways: by taxing spending (eg through Value Added Tax (VAT) or Goods and Services Tax (GST)), receipts (personal or corporate income) or capital. Single taxes may be intended to support more than one aim. Economic growth appears to be more strongly linked with reducing the administrative burden on business than with cutting tax rates. Implementing tax also has...