Procedures vary for obtaining reduced withholding tax under income tax treaties. Charitable organizations are subject to tax on business income. Bond funds invest in fixed income or debt securities. New Zealand residents are liable for tax on their worldwide taxable income. This lowers operating income and GAAP taxes. He opposed income tax for low-income groups. The government also decided to pay to families with monthly income or less. The IRS established rules on ignoring alimony as a source of taxable income. Many systems provide for specific exclusions from taxable (chargeable) income. The average annual household income is R161,762. The median household income is $55,134. There is an important distinction between income and wealth. Economic inequality is a result of difference in income. The report classifies country development based on per capita gross national income. There is an association between low income and high population growth.