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Crypto Tax Calculator

Estimate income tax on cryptocurrency gains in New Zealand. IRD treats crypto as property — gains on disposal are taxable income at your marginal tax rate.

Updated 2026-27 FYData stays on your deviceIRD sourced data

Disclaimer

This calculator provides estimates for general information purposes only. Results should not be relied upon as professional financial, tax, or legal advice. Tax rates and thresholds are based on publicly available IRD data and may change. Always consult a qualified tax agent or financial adviser for advice specific to your circumstances.

Frequently Asked Questions

Is cryptocurrency taxed in New Zealand?
Yes. IRD treats cryptocurrency as property, not currency. If you acquire crypto with the purpose of disposal (which IRD presumes for almost all crypto purchases), gains on disposal are taxable as ordinary income at your marginal rate (10.5–39%). This applies to selling crypto for NZD, swapping one crypto for another (a taxable disposal), spending crypto on goods or services, and even gifting in some cases. Holding crypto without disposing is not taxed. Source: IRD — Cryptoassets.
What about crypto mining and staking rewards?
Mining and staking rewards are taxable as ordinary income at the NZD market value at the time you receive them. You must declare this in your annual tax return. When you later sell those mined or staked coins, any further change in value between receipt and sale is also taxable (if disposed of with the intention to make a gain). Keep records of: date received, NZD value at receipt, date sold, and NZD value at sale. Source: IRD — Cryptoassets.
How does IRD know about my crypto?
IRD has data-sharing arrangements with major NZ-based cryptocurrency exchanges and gets bulk transaction data from them. They have already issued bulk requests for customer data from Easy Crypto, Independent Reserve, Swyftx and others. IRD has also signed up to international crypto-asset reporting frameworks under the OECD CARF, which will share data globally from 2027. The penalty for failing to declare can be up to 150% of the unpaid tax. Always declare your gains. Source: IRD investigations.

IRD treats cryptocurrency as property, not currency. Most people who acquire crypto with the purpose of disposal (which IRD presumes for nearly all crypto purchases) must pay income tax on any gains at their marginal tax rate. Losses are deductible.

How this calculator works

Enter your crypto purchase price (in NZD), sale price (in NZD), and your other taxable income. The calculator works out your gain, then taxes it at your marginal PAYE rate (10.5–39%). Mining and staking rewards are taxable as income at fair value.

NZ Crypto Tax Rules (IRD)

TreatmentProperty (not currency)
Gains taxed atYour marginal PAYE rate (10.5–39%)
LossesDeductible against other income
Mining / stakingIncome at NZD fair value when received
Crypto-to-crypto swapTaxable disposal
Holding (no sale)Not taxed

IRD has data-sharing arrangements with NZ exchanges — keep good records.

Worked Examples

Buy 1 BTC for $50,000 NZD, sell 18 months later for $80,000 NZD; salary $90,000

Tax on gain: ~$9,900

  1. Gain: $80,000 - $50,000 = $30,000
  2. Other income: $90,000 (top bracket 33% kicks in above $70k)
  3. First $0–$0 of gain in 30% bracket: 0
  4. Gain mostly falls in 33% bracket (income now $90k–$120k)
  5. Approx tax: $30,000 × 33% = $9,900 (simplified)

Built and maintained by Konstantin Iakovlev. Data sourced from the IRD and official New Zealand government sources.

Last updated:

Official Sources

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