Section MK 4: substituted, on 1 April 2008, by section 129 of the Taxation (KiwiSaver) Act 2007 (2007 No 110).
Section MK 4(2): amended, on 1 July 2011 (applying for calculating a tax credit for the year starting on 1 July 2011 and later years), by section 7(1)(a) of the Taxation (Annual Rates and Budget Measures) Act 2011 (2011 No 23).
Section MK 4(2): amended, on 1 July 2011 (applying for calculating a tax credit for the year starting on 1 July 2011 and later years), by section 7(1)(b) of the Taxation (Annual Rates and Budget Measures) Act 2011 (2011 No 23).
Section MK 4(3)(a): substituted, on 1 July 2011 (applying for calculating a tax credit for the year starting on 1 July 2011 and later years), by section 7(2) of the Taxation (Annual Rates and Budget Measures) Act 2011 (2011 No 23).
Section MK 4(3)(b): substituted, on 1 July 2011 (applying for calculating a tax credit for the year starting on 1 July 2011 and later years), by section 7(2) of the Taxation (Annual Rates and Budget Measures) Act 2011 (2011 No 23).
Section MK 4(4) formula: amended, on 1 July 2011 (applying for calculating a tax credit for the year starting on 1 July 2011 and later years), by section 7(3) of the Taxation (Annual Rates and Budget Measures) Act 2011 (2011 No 23).