New Zealand Crypto Tax 2026: How to Calculate and File Cryptoasset Income

New Zealand has no broad capital gains tax, but this does not make cryptoasset gains tax-free. Inland Revenue says amounts from selling, trading or exchanging cryptoassets are taxable in most cases. The result depends on acquisition purpose, a profit-making scheme or business activity, and it must be calculated in New Zealand dollars using FIFO or weighted average cost.

The core rule: no general CGT does not mean no crypto tax

New Zealand taxes income under the Income Tax Act rather than applying a separate, universal crypto capital gains schedule. Inland Revenue's current guidance says that in most cases amounts received from selling, trading or exchanging cryptoassets are taxable. Common routes are:

• the cryptoasset was acquired with a dominant purpose of disposal;
• the activity forms a profit-making undertaking or scheme;
• the person is carrying on a cryptoasset trading, mining or other business;
• rewards or service payments are ordinary or business income.

There is no automatic exemption after holding Bitcoin for one year, and calling a purchase a “long-term investment” is not decisive. What mattered at acquisition, supported by conduct and surrounding facts, is central.

Acquisition purpose, profit-making scheme and trader status

Inland Revenue tests a taxpayer's stated purpose against objective circumstances: the nature of the asset, expected income while held, research, purchase circumstances, number of similar transactions, holding period, use and disposal. An asset that produces no income or other benefit while held may strongly suggest that eventual sale was the benefit being sought.

A full-time job does not automatically prevent trader status, and frequent small purchases do not automatically create it. Business classification is separate from the question whether a particular asset was bought for disposal. Compare the regional differences in Australia, New Zealand and Singapore.

Sales, swaps, spending and transfers

A disposal includes selling for NZD, exchanging one cryptoasset for another, using crypto to buy goods or services, and giving crypto to another person. A crypto-to-crypto swap must be recorded as both a disposal of the outgoing asset and an acquisition of the incoming asset at market value.

Moving an asset between wallets, addresses or accounts that all belong to the same owner is not a disposal. The practical challenge is evidence: retain the transaction hash and both owned addresses so the outflow is not mistaken for a sale.

1. Identify the asset and units disposed of.
2. Convert what was received to NZD at the transaction time.
3. Assign deductible purchase cost using FIFO or WAC.
4. Include relevant transaction fees.
5. Reconcile remaining units across every wallet and platform at 31 March.

FIFO and weighted average cost are both recognised

Inland Revenue's July 2026 guidance expressly permits first-in first-out (FIFO) or weighted average cost (WAC) to determine the cost of disposed cryptoassets. The basic calculation is:

Cryptoasset income = sale price − purchase cost − transaction fees.

Suppose 1 ETH cost NZD 3,000 and a later 1 ETH cost NZD 4,000. If 0.5 ETH is sold for NZD 2,500, FIFO assigns NZD 1,500 of purchase cost. WAC first produces an average cost of NZD 3,500 per ETH and assigns NZD 1,750. The method changes timing and must be applied consistently to the complete data set, not selected per profitable trade.

Unrealised gains and losses are not taxable or deductible for an ordinary non-trading-stock holding. A crypto business may be subject to trading-stock rules, including closing stock at cost, so its year-end calculation should not be mixed with an investor worksheet.

Mining, staking, lending, airdrops and payments

Cryptoasset income can include mining rewards and transaction fees, staking or staking-as-a-service rewards, lending rewards, payment for goods or services, and some airdrops or hard-fork assets. Receipt and later disposal are separate calculations.

• Receipt: include taxable income at NZD market value when derived or received under the applicable rule.
• Cost for later disposal: for a non-trading-stock asset, the value already returned as income generally becomes the deductible cost.
• Later sale or swap: calculate the difference between disposal value, assigned cost and transaction fees.

This prevents taxing the same receipt twice, while still capturing price movement after receipt. Business miners and traders need separate expense and trading-stock analysis.

DeFi must be reviewed contract by contract

Inland Revenue's current calculation page says that if a user loses possession of cryptoassets in a DeFi product, a disposal has occurred. It also published a detailed 2026 issues paper on wrapping, bridging, lending, borrowing and staking. That paper records the Commissioner's initial views and the consultation is closed; it should not be presented as if every protocol has a final universal ruling.

The legal effect matters more than the label. A self-wallet lock where the user retains the private key may differ from transferring assets into a pooled contract and receiving a new token. Rewards are generally considered income when the user owns and can deal with them. For every DeFi transaction, retain contract terms, wallet movements, tokens received, control rights and NZD values.

Derivatives and perpetuals should also remain in a separate worksheet. Their financial-arrangement or business treatment can depend on contract and taxpayer facts; open positions and snapshots are documentation, while realised close, settlement, liquidation, fees and funding provide the actual cash-flow trail.

IR3, tax year, deadlines and seven-year records

The standard New Zealand tax year runs from 1 April to 31 March. An individual generally files an IR3 when they have more than NZD 200 of income before tax that Inland Revenue has not already been told about. The ordinary filing deadline is 7 July unless a tax agent or an extension of time applies. Non-residents use IR3NR rather than IR3.

Inland Revenue requires cryptoasset records for at least seven years, even after all crypto has been sold. Keep asset type, date, transaction type, units, NZD value, opening and closing holdings, exchange records, bank statements and wallet addresses. Download exchange histories regularly instead of assuming the platform will retain them indefinitely.

A useful report separates disposals, receipt income, expenses, business/trading stock and review items. It should reconcile exchange cash flows and 31 March balances. Learn how the Australian approach differs in the Australia crypto tax guide, or compare with Singapore's income-based rules.

New Zealand CARF reporting started on 1 April 2026

New Zealand-based Reporting Crypto-Asset Service Providers must collect identifying and tax-residency information and report relevant transactions from 1 April 2026. The first reporting period ends 31 March 2027 and the first report is due 30 June 2027. Inland Revenue will exchange relevant information with participating jurisdictions and use it to check returns.

Users do not register for CARF, but must provide accurate information when asked. CARF does not calculate acquisition purpose, WAC, missing wallets or DeFi treatment. The taxpayer still needs a complete return. See the global crypto reporting guide for the wider framework.

New Zealand crypto tax FAQ

Official Inland Revenue sources

• Inland Revenue: buying and selling cryptoassets
• Inland Revenue: acquiring cryptoassets to sell or exchange
• Inland Revenue: calculating income with FIFO or WAC
• Inland Revenue: seven-year cryptoasset records
• Inland Revenue: IR3 return and deadline
• Inland Revenue: CARF overview and first reporting period
• Inland Revenue Tax Technical: 2026 DeFi issues paper

Reviewed against official Inland Revenue material on 2 September 2026. This guide is general information, not personalised tax advice.

Disclaimer: This article is for general informational purposes only and does not constitute tax advice. For individual tax advice, consult a licensed tax professional.