Last Updated: April 2026
New Zealand is one of the simplest high-income countries to depart from a tax perspective. There is no New Zealand capital gains tax, no exit tax, and no deemed disposal of assets on departure. The two key financial actions on leaving New Zealand permanently are managing your KiwiSaver withdrawal (a significant sum for long-term residents) and understanding the transitional resident tax treatment if you arrived in New Zealand as a migrant within the last 4 years. New Zealand's Inland Revenue Department (IRD) has a streamlined non-residency process, and the country's tax system is generally one of the more straightforward in the OECD.
NZ-to-Australia is the most common migration corridor from New Zealand β the Trans-Tasman Travel Arrangement allows NZ citizens to live and work in Australia indefinitely. Key planning points:
KiwiSaver transfer to Australian super: Under the Trans-Tasman retirement savings portability agreement, you can transfer your KiwiSaver balance to an eligible Australian complying super fund. This avoids the 1-year emigration withdrawal wait and the Australian super fund continues tax-advantaged growth. Not all Australian super funds accept KiwiSaver transfers β check your preferred Australian fund's eligibility. The transfer is processed through Inland Revenue and your KiwiSaver provider.
Australian CGT Event I1 does not apply to NZ residents: When you become an Australian tax resident on arrival, you get a cost base reset to FMV for Australian CGT purposes β so any gains on your NZ assets before Australian residency commenced are not Australian-taxable. This is the Australian 'acquisition at market value' rule for new residents.
NZ property bright-line as non-resident: If you own NZ residential property and sell within 2 years of purchase after moving to Australia: the NZ bright-line test can still apply. ATO and IRD rules both need to be considered β NZ has taxing rights on NZ-situated real property regardless of your residency.
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Get International Health Cover from Day One βNot immediately. Since June 2021, the emigration withdrawal rule requires you to have been residing outside New Zealand for at least 1 year before you can apply for the withdrawal. Before the 1-year mark, your KiwiSaver account remains locked (you cannot access it except for first home purchase or significant financial hardship in NZ). After 1 year overseas: apply to your KiwiSaver provider for an 'emigration withdrawal'. You will need a statutory declaration confirming permanent emigration, proof of overseas residence (utility bills, employment contract, lease agreement), and your provider's specific application form. The payout: your contributions + employer contributions + investment returns. Government member tax credits received after 2012: returned to Inland Revenue and deducted from your withdrawal. Exception β Australia: KiwiSaver-to-Australian-super transfer is available from day one of departure to Australia (no 1-year wait) via the Trans-Tasman portability agreement.
No β New Zealand has no capital gains tax on shares. Whether you sell NZX-listed shares as a NZ resident or as a non-resident after departure, there is generally no NZ tax on the capital gain. The exception: if the IRD considers you to be a 'share trader' (buying and selling shares as a business), gains are taxable as business income. For most investors with a long-term buy-and-hold portfolio, this does not apply. After departure as a non-resident: NZ dividends from NZX shares are subject to NRWT (15%, or DTA-reduced rate). The gain on eventual sale: no NZ tax. Imputation credits (NZ's equivalent of Australian franking credits): non-residents generally cannot use NZ imputation credits β the NRWT is the final NZ tax on dividends. Under the NZ-USA DTA: NZ dividends are subject to 15% NRWT for US residents.
NZ Superannuation (the universal state pension, paid from age 65) requires NZ residency to receive it. If you leave NZ permanently before or after age 65: NZ Super payments stop. NZ Super is not portable internationally in most cases β it is designed as an NZ-resident pension. Exception: New Zealand has Social Security Agreement with some countries (Australia, Canada, UK, Ireland, the Netherlands, etc.) β under these agreements, periods of residence in partner countries can be combined to meet eligibility thresholds, and pensions can be paid internationally. Check NZ's current portability arrangements via Work and Income (workandincome.govt.nz). If you return to NZ after working abroad and claim NZ Super: your overseas pension may reduce your NZ Super entitlement (the overseas pension deduction rule).
For the tax year of departure (April 1 β March 31): yes. If you are on a standard PAYE employment and your income is only from employment, IRD may auto-assess you and send a tax assessment β review it and confirm or file if there are adjustments. If you are self-employed, have rental income, or have overseas income: file an IR3 via myIR. After departure: file NZ non-resident returns only if you have NZ-source income (NZ rental income, NZ self-employment income). Interest and dividends from NZ: NRWT withheld at source β no filing required for these (NRWT is the final tax). NZ property sales: if the bright-line test applies, you must file even as a non-resident.