Quick answer
For a recreational player, gambling winnings are generally not taxable in New Zealand. IRD's guidance on prize money confirms raffle, Lotto and TAB racing winnings are generally not taxable. Winnings can become taxable where gambling is part of a taxable activity, such as running it as a business.
The player position
Inland Revenue's guidance on taxing prize money states that prize money, including raffle, Lotto and TAB horse, dog and trotting-race winnings, is generally not taxable. It also notes that prize money can be taxable when it is part of a person's taxable activity.
Applied to casino gambling, that gives two categories:
| Situation | General treatment |
|---|---|
| Occasional, recreational gambling | Winnings generally not taxable |
| Organised, business-like gambling activity | Potentially taxable as income |
The dividing line is not a specific dollar amount or number of bets. It is whether the activity is organised and pursued in a business-like way. If you treat gambling as a sideline business with records, systems and a defined strategy, you are in territory where you should take professional advice.
For the overwhelming majority of people who bet on the weekend, this question has a short answer: winnings are not taxed.
What is actually taxed: the operators
The duties that exist apply to the operator, not to you, and they do not come out of your winnings.
GST on remote services
An offshore supplier of remote services to New Zealand customers generally has to register for GST once its taxable supplies exceed NZ$60,000 in a 12-month period. For online gambling, IRD defines taxable supplies as money received from New Zealand residents less prizes paid. The standard GST rate is 15%.
Offshore online gambling duty
A 12% duty has applied since 1 July 2024 to qualifying offshore online gambling operators supplying New Zealand residents. It is calculated on online gambling profits — receipts from residents minus prizes paid.
Under the new licensed regime
The Online Casino Gambling Act 2026 framework introduces a licensing, levy and duty model. A rise in the duty to 16% from 1 January 2027 has been reported in legal briefings, alongside other levies and charges. Reported figures have not been consistent across sources, so confirm current rates with Inland Revenue and DIA before relying on any number.
The important point for a player is that these are operator-side costs. They may influence what a licensed operator offers, but they are not deducted from your balance.
Duty-free winnings on TAB and Lotto
Betting through TAB NZ and buying Lotto tickets are the regulated New Zealand products, and winnings from them are generally not taxable for the player. If you want the simplest possible tax position, these are the products where the framework is fully domestic.
Records are still worth keeping
Even though recreational winnings are not taxable, keeping simple records is sensible:
- Deposit and withdrawal statements if a bank ever asks about large transfers
- A monthly note of net position, which is useful for your own budgeting
- Records of any crypto conversions, since those can create separate tax questions unrelated to
gambling
Large, unexplained deposits can trigger anti-money-laundering checks at a bank. Being able to show where money came from makes life easier.
Who needs a professional opinion
Get advice if any of these apply:
- You gamble in a systematic, business-like way as your main income source
- You gamble through an entity, or you pool funds with others
- Your gambling intersects with crypto trading, where separate tax rules apply
- You receive large offshore payments regularly
For everyone else, the position is straightforward: recreational gambling is not a taxable activity in New Zealand, and the duties you read about are paid by the operator.
One caution
Tax treatment can change, and the licensed market under the Online Casino Gambling Act 2026 is still being implemented. Check IRD's current guidance before making decisions based on this article, and treat anything an affiliate site tells you about tax as general information rather than advice.