Income Tax Act 2007

Tax credits and other credits - Tax credits for foreign income tax

LJ 5: Calculation of New Zealand tax

You could also call this:

"How to work out the tax you owe in New Zealand"

To calculate your New Zealand tax, you use a formula. The formula is: (your income from a foreign source minus your deductions) divided by your total income, then multiplied by your notional tax liability. You can find your notional tax liability by using another formula: (your total income minus any losses) multiplied by the tax rate. The tax rate is the basic rate of income tax, which you can find in schedule 1, part A, of the Income Tax Act. If you are a beneficiary of a trust, you are treated as having the same deductions as the trustee of the trust for the foreign income you received.

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Part LTax credits and other credits
Tax credits for foreign income tax

LJ 5Calculation of New Zealand tax

  1. This section provides the rules that a person must use to calculate the amount of New Zealand tax for an income year in relation to each segment of foreign-sourced income of the person that is allocated to the income year.

  2. If the person has a notional income tax liability of more than zero, the amount of New Zealand tax for the income year relating to the allocated segment is calculated using the following formula, the result of which can not be less than zero:

    ((segment − person's deductions) ÷ person's net income) × notional liability.

    Where:

    • In the formula in subsection (2),—

    • segment is the amount of the segment of foreign-sourced income for the income year:
      1. person's deductions is the amount of the person's deduction for the tax year corresponding to the income year that is attributable to the segment of foreign-sourced income:
        1. person's net income is the person's net income for the tax year corresponding to the income year under section BC 4(1) to (3) (Net income and net loss):
          1. notional liability is the person's notional income tax liability for the income year under subsection (5).
            1. Subsection (4B) applies for the income year when the total amount of New Zealand tax for all segments of foreign-sourced income of the person calculated under subsection (2) is more than the notional income tax liability.

            2. Each amount of New Zealand tax calculated under subsection (2) in relation to each segment of foreign-sourced income is adjusted by multiplying the amount by the following ratio:

              person's notional income tax liability ÷ NZ tax.

              Where:

              • In the formula in subsection (4B), NZ tax is the amount given by adding together the result of the calculation under subsection (2), for each segment of assessable income from all sources, including assessable income sourced in New Zealand.

              • For the purposes of this section, a person’s notional income tax liability for a tax year is calculated using the formula—

                (person’s net income − losses) × tax rate.

                Where:

                • In the formula in subsection (5),—

                • person’s net income is the person’s net income for the tax year:
                  1. losses
                    1. is the amount of the loss balance carried forward to the tax year that the person must subtract from their net income under section IA 4(1)(a) (Using loss balances carried forward to tax year):
                      1. must be no more than the amount of the person's net income:
                      2. tax rate is the basic rate of income tax set out in schedule 1, part A (Basic tax rates: income tax, ESCT, RSCT, RWT, and attributed fringe benefits).
                        1. If the person is a beneficiary of a trust and has a segment of foreign-sourced income (the foreign income) that was received by the trust and is beneficiary income of the person, the person is treated for the purposes of this section as having the amount of deductions relating to the foreign income that a trustee of the trust would have had if the trustee were calculating their New Zealand tax for the foreign income under this section.

                        Compare
                        Notes
                        • Section LJ 5(1) heading: substituted (with effect on 1 April 2008), on (applying for the 2008–09 and later income years), by section 101(1) of the Taxation (Tax Administration and Remedial Matters) Act 2011 (2011 No 63).
                        • Section LJ 5(1): substituted (with effect on 1 April 2008), on (applying for the 2008–09 and later income years), by section 101(1) of the Taxation (Tax Administration and Remedial Matters) Act 2011 (2011 No 63).
                        • Section LJ 5(2) heading: substituted (with effect on 1 April 2008), on (applying for the 2008–09 and later income years), by section 101(1) of the Taxation (Tax Administration and Remedial Matters) Act 2011 (2011 No 63).
                        • Section LJ 5(2): substituted (with effect on 1 April 2008), on (applying for the 2008–09 and later income years), by section 101(1) of the Taxation (Tax Administration and Remedial Matters) Act 2011 (2011 No 63).
                        • Section LJ 5(3) heading: substituted (with effect on 1 April 2008), on (applying for the 2008–09 and later income years), by section 101(1) of the Taxation (Tax Administration and Remedial Matters) Act 2011 (2011 No 63).
                        • Section LJ 5(3): substituted (with effect on 1 April 2008), on (applying for the 2008–09 and later income years), by section 101(1) of the Taxation (Tax Administration and Remedial Matters) Act 2011 (2011 No 63).
                        • Section LJ 5(3)(c): amended (with effect on 1 April 2008 and applying for the 2008–09 and later income years), on , by section 133(1) of the Taxation (Annual Rates, Employee Allowances, and Remedial Matters) Act 2014 (2014 No 39).
                        • Section LJ 5(4) heading: substituted (with effect on 1 April 2008), on (applying for the 2008–09 and later income years), by section 101(1) of the Taxation (Tax Administration and Remedial Matters) Act 2011 (2011 No 63).
                        • Section LJ 5(4): substituted (with effect on 1 April 2008), on (applying for the 2008–09 and later income years), by section 101(1) of the Taxation (Tax Administration and Remedial Matters) Act 2011 (2011 No 63).
                        • Section LJ 5(4B) heading: substituted (with effect on 1 April 2008), on (applying for the 2008–09 and later income years), by section 101(1) of the Taxation (Tax Administration and Remedial Matters) Act 2011 (2011 No 63).
                        • Section LJ 5(4B): substituted (with effect on 1 April 2008), on (applying for the 2008–09 and later income years), by section 101(1) of the Taxation (Tax Administration and Remedial Matters) Act 2011 (2011 No 63).
                        • Section LJ 5(4C) heading: inserted (with effect on 1 April 2008), on (applying for the 2008–09 and later income years), by section 101(1) of the Taxation (Tax Administration and Remedial Matters) Act 2011 (2011 No 63).
                        • Section LJ 5(4C): inserted (with effect on 1 April 2008), on (applying for the 2008–09 and later income years), by section 101(1) of the Taxation (Tax Administration and Remedial Matters) Act 2011 (2011 No 63).
                        • Section LJ 5(6)(b): substituted (with effect on 1 April 2008), on , by section 338(3) of the Taxation (International Taxation, Life Insurance, and Remedial Matters) Act 2009 (2009 No 34).
                        • Section LJ 5(6)(c): amended, on , by section 562 of the Taxation (Business Taxation and Remedial Matters) Act 2007 (2007 No 109).
                        • Section LJ 5(7) heading: inserted, on , by section 107(1) of the Taxation (Annual Rates for 2024–25, Emergency Response, and Remedial Measures) Act 2025 (2025 No 9).
                        • Section LJ 5(7): inserted, on , by section 107(1) of the Taxation (Annual Rates for 2024–25, Emergency Response, and Remedial Measures) Act 2025 (2025 No 9).
                        • Section LJ 5 list of defined terms beneficiary income: inserted, on , by section 107(2) of the Taxation (Annual Rates for 2024–25, Emergency Response, and Remedial Measures) Act 2025 (2025 No 9).
                        • Section LJ 5 list of defined terms New Zealand: inserted (with effect on 1 April 2008), on , by section 338(4) of the Taxation (International Taxation, Life Insurance, and Remedial Matters) Act 2009 (2009 No 34).
                        • Section LJ 5 list of defined terms trustee: inserted, on , by section 107(2) of the Taxation (Annual Rates for 2024–25, Emergency Response, and Remedial Measures) Act 2025 (2025 No 9).