Betting offers in New Zealand: the 2026 guide to what a sign-up offer, a free bet and a boosted multi are really worth here

Updated October 2026

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The Racing Industry Amendment Act 2025 inserted section 74AAA into the Racing Industry Act 2020, and from 28 June 2025 the betting landscape in this country has a single lawful online provider: TAB NZ, the government-owned operator, runs two online brands, TAB and Betcha, and the Department of Internal Affairs told every other operator serving New Zealand to withdraw with immediate effect. For a punter, that means the conversation about “betting offers” in New Zealand is much narrower than the same conversation in Australia, the United Kingdom or continental Europe, and the broader marketing has to be read against that legal backdrop. This guide covers what an offer is, what it is worth in real money, and what the offshore alternatives actually cost the person who takes them.

Last checked: October 30, 2026, against the Department of Internal Affairs public register and the Racing Industry Act 2020 as in force.

What a “betting offer” actually is — and what it is worth in plain money

A betting offer is a marketing promise tied to opening an account, putting money in, or placing a bet. The promise takes a few common shapes: bonus cash credited to a new account, a free bet given in return for a qualifying wager, a boosted price on a chosen runner or match, money back as a free bet if a multi misses by a set number of legs, and “insurance” tools that refund part of a stake when one leg fails. None of these promises is the same as real money. The job of this section is to take them apart so the dollar value of an offer can be compared across brands on the same scale.

The cost an offer imposes is not just the dollar figure on the ad. It sits in three places: the bonus itself, the conditions attached to withdrawing any winnings from it, and the bookmaker’s margin built into every price the offer is spent on. A “free” $20 bet is not $20 in the punter’s hand; it is a token that pays out winnings only, and the bookmaker’s margin takes a cut of those winnings on the way through. A “100% bonus” of $200 on a $200 deposit is not a gift of $200; it is $200 of bonus cash that has to be turned over a stated number of times at a stated minimum price before any of it can be withdrawn. Two offers that look the same on a banner can thus cost the punter radically different amounts of real turnover.

How the value of a free bet is calculated

The standard formula for a free bet whose stake is not paid back is: free-bet value = free-bet amount × (odds − 1) ÷ odds × payout share of the market. Take a $20 free bet on a two-way market at decimal odds of 1.90 on each side. The payout share of that market — the fraction of all stakes the bookmaker returns to winners across every outcome — is 1 ÷ (1/1.90 + 1/1.90) = 0.95, or 95%. The free-bet value is thus $20 × (1.90 − 1) ÷ 1.90 × 0.95 = $9.00. The same $20 staked as a cash bet at the same odds has a payout share of 95% too, but the stake is returned with a win, so the value is $20 itself, not $9.00. The free bet is worth roughly 45 cents on the dollar in this example, and the rest is the bookmaker’s margin, the lost stake, and the fact that the bet has to win before any value shows up at all.

That $9.00 is an average. Some bets at the same price win, some lose, and on any single bet the punter either collects $0 or $18. Spread across many such bets at the same price and the same market, the average settles at $9.00 per $20 free bet. Any free bet offered to a New Zealand punter merits reading against that benchmark: a $20 free bet on a market with a 95% payout share is worth about $9 on average, and a free bet on a more expansive market — totals, player props, boosted-odds novelty lines — is worth less, because the payout share is lower.

Why the same $20 is worth different amounts on different markets

The margin of a market is what decides how much of every $1 bet the bookmaker keeps. A two-way market at 1.90/1.90 has a 5% margin, and the payout share is 95%. A typical 1X2 football market with three outcomes tends to carry a margin closer to 6% to 8% once a draw is added. Player-prop markets, boosted-odds markets, and same-game multis with several legs stitched together can easily carry 10% to 15% margins once the legs compound. A free bet on a high-margin market is, on average, worth less than a free bet on a thin-margin market at the same headline odds. The price on the slip does not tell the punter which market they are really being paid to bet on — the margin does.

The three costs that compound inside a “welcome offer”

A 100% match on a $200 deposit is, in arithmetic, $200 of bonus cash on top of the deposit. The punter does not get to keep that $200 as cash; it is bonus cash that has to be turned over, and the wagering requirement is the multiplier that decides how much real money has to pass through the account before any of the bonus can be withdrawn. A 6x wagering requirement on the bonus alone means $1,200 of qualifying bets. A 6x requirement on the bonus plus the deposit means $2,400 of qualifying bets. Only bets at or above the minimum qualifying price count, and the minimum price is typically 1.50 in decimal odds or higher, so single heavy-favourite bets that clear the turnover cheaply do not count.

On top of that turnover, the margin of every market the bonus is spent on takes its cut. A turnover of $1,200 at a 6% average margin costs the punter an expected $72 in expected value on the way through. That $72 is the realistic cost of clearing the $200 bonus, on average, before any account-level conditions (a deadline, a cap on free-bet winnings, a stake limit while a bonus is active) are even considered. The bigger the bonus, the larger both the turnover and the margin cost grow, and they grow together.

What a boosted price is really worth

A “boosted odds” offer takes a runner or a match and pays a higher price than the published market. The headline on the boost is a number, but the comparison has to be made against the unboosted market on the same event, and the margin of both. A $5 free bet that pays $20 instead of the $15 the unboosted market paid is a $5 increase on the payout if the bet wins, and zero if the bet loses. The value of the boost is thus the boost amount × the implied probability of the bet winning × the payout share. A boost on a long-odds runner (say $15 to win a race) is worth more in absolute terms than the same boost on a short-odds favourite, but the chance of either bet landing is different, and the average value of the boost has to be calculated against that probability, not against the headline increase.

How New Zealand’s betting market actually works in 2026

The New Zealand market is a monopoly by statute. TAB NZ, the government-owned operator, runs the entire legal racing and sports-betting business here, and it has done since the Racing Industry Act 2020 gave it sole provider status, with section 74AAA — added by the 2025 amendment and in force from 28 June 2025 — making that monopoly explicit and enforceable. TAB NZ’s online business is split across two brands, TAB and Betcha, and they are not rivals; they are two front doors to the same account, the same product, the same TAB NZ rules and the same harm-minimisation framework.

TAB NZ does not run the betting business alone. In 2023 it signed a 25-year operating partnership with Entain, the global betting group, and Entain runs the day-to-day betting business under that agreement. The commercial split is 50/50 of gross profits, with a guaranteed minimum of $150m a year going to TAB NZ for the first five years, and Entain pledged a one-off $100m payment to the New Zealand racing sector on signing. The monopoly thus sits on TAB NZ’s statutory side and on Entain’s product and platform side, and the punter sees the TAB and Betcha brands but rarely the Entain name. The two are not separate companies and not separate licences; they are one operator with two brand faces.

What TAB and Betcha each show to a New Zealand punter

TAB and Betcha both sit on TAB NZ’s licence, both run the same betting rules, and both share safer-gambling tools and the same customer accounts. The brands are positioned differently. TAB is the longer-running brand, with the wider product spread: fixed-odds and tote betting on thoroughbred, harness and greyhound racing (greyhound racing is closing in stages from 1 August 2026), full sports coverage, and a deep set of bet types across both. Betcha is the newer brand, built around the social side of punting: a daily Toolbox of odds boosts and insurance tools, a Bet Social section where punters chat, follow tipsters and share bets, a Playbook of match previews and tips, and a Multi Builder that lets the punter assemble Same Game Multis and copy trending multis from other punters.

Both brands carry the same safer-gambling framework and the same 0800 654 655 helpline. Both list a 17+ age rating in the App Store, and the legal age for a TAB NZ account is 18. Both verify identity and a New Zealand address on signup, and an exclusion applied in one brand applies across the other.

What “not licensed in New Zealand” actually means for the punter

Eight of the ten brands in this guide are not licensed to take bets from people in New Zealand. The label is the same on every one of them, and what it means in practice is this: only TAB NZ may lawfully take racing or sports bets from a person in New Zealand, and an offshore bookmaker doing so is in breach of section 74AAA. The Department of Internal Affairs, which regulates gambling under the Gambling Act 2003, has told providers serving New Zealand to withdraw. There is no published penalty for a New Zealand punter who opens an offshore account, but the law targets the operator.

For the punter, the practical consequences of an offshore account are different from the marketing. No New Zealand complaint or dispute route applies. The free 0800 654 655 helpline and Safer Gambling Aotearoa are not automatically offered. The bookmaker’s own terms govern everything, and the terms may cap withdrawals, void bets on technicalities, decline to pay large wins, or close accounts — all of which DIA warns players about. The deposit and the bonus sit in an account outside the New Zealand harm-minimisation framework, and any “self-exclusion” applied in New Zealand does not follow the punter to the offshore site. The bookmaker’s own house rules, the licence it sits on (often Curaçao or Anjouan, with no New Zealand recognition), and the legal system of the country where the company is registered are what govern a dispute.

The legal frame around a New Zealand betting offer

The Racing Industry Act 2020, with section 74AAA added in 2025, is the controlling statute. The Department of Internal Affairs is the regulator. The Gambling Act 2003 covers the wider gambling framework. The Online Casino Gambling Act 2026 covers online casino gambling only; it does not extend the TAB NZ sports-betting monopoly and it does not allow other sports bookmakers in. Bets on racing and sport from any other source are unlawful for the operator to take from a person in New Zealand.

The shape of the prohibition and what it covers

Section 74AAA says no person other than TAB NZ may offer racing betting, sports betting or other racing or sports betting to a person in New Zealand, regardless of where that person is resident or incorporated. The prohibition covers events held in New Zealand and events held elsewhere. Live (in-play) betting is offered inside the TAB and Betcha apps; whether any restriction on in-play markets exists is not established, and the published record does not state one. Virtual (computer-simulated) sport sits on the other side of the line — under the 2026 online casino law it is treated as casino gambling, not as sports betting. Esports sits in a grey zone: whether esports betting is “sports betting” under the Racing Industry Act 2020 is not established, and this guide says nothing definite on that point.

The ban on greyhound racing betting from offshore operators takes effect on 1 August 2026 as the code winds down in stages. From that date, no offshore operator may take bets on New Zealand greyhound races, and the TAB NZ fixed-odds and tote markets on greyhounds are also closing with the code.

What the punter’s taxes look like

Inland Revenue guidance says recreational gambling winnings in New Zealand are generally not taxable, and prize money from TAB horse, dog and trotting races is not taxable. A punter who bets as a business is a different case and needs to talk to Inland Revenue or an accountant; the rules around hobby versus business are not a matter this guide resolves. On the operator side, TAB NZ pays a Problem Gambling Levy of 0.74% of its gross profits (in force from 1 July 2025 to 30 June 2028), and offshore operators supplying New Zealand residents pay an online gambling duty (12% of profits since 1 July 2024, rising to 16% from 1 January 2027). A duty being payable does not make an offer lawful: a tax on an unlawful offer is still a tax on an unlawful offer, and a bookmaker paying online gambling duty in New Zealand is not, by that fact, licensed to take bets here.

What DIA and the Advertising Standards Authority say

The Department of Internal Affairs has publicly warned that offshore operators may sit in jurisdictions with minimal consumer safeguards, may not return unspent credits, and may not pay out large wins. The Advertising Standards Authority’s Gambling Advertising Code applies to betting advertising in New Zealand: ads must not target children (under 14) or young people (14 to under 18), judged by context, appeal and expected audience — a 25% or more share of the audience counts as significant where accurate data exists — must not encourage harm, and must be truthful with terms available. There is no New Zealand equivalent of a “whistle-to-whistle” pre-watershed ban on betting ads on television; the ASA Code sets the standard, and the standard is what marketers and broadcasters are judged against.

No published New Zealand rule on the size of a betting bonus or the wagering terms of one was found, so every figure in this guide about a TAB or Betcha offer comes from the operator’s own terms and not from a statutory cap. The Online Casino Gambling Act 2026 imposes a $100 / 200% cap on inducements at licensed online casinos, and that cap is for casinos, not for sports bookmakers. A free bet of $50 at TAB NZ is not capped by that law; it is capped by what TAB NZ’s own terms say.

Greyhound racing, from 1 August 2026

Greyhound racing in New Zealand is closing in stages from 1 August 2026. From that date, the racing stops, and with it the legal basis for any betting on New Zealand greyhound races — including from offshore operators. Any “offer” specifically tied to New Zealand greyhound racing that purports to be running after 1 August 2026 is offering a market on a race that is not being run, and the punter is right to treat that as a red flag in itself.

Safer gambling tools in New Zealand

Safer gambling in New Zealand is built around three layers: the tools inside the TAB NZ apps, the statutory levies that fund treatment and education, and the free counselling services that are reachable on a phone call or a text. The frame is statutory, the tools are operator-level, and the helpline is the public side of the whole system.

What TAB and Betcha offer inside their apps

The TAB and Betcha apps both list deposit limits, time-outs and self-exclusion. A deposit limit is a daily, weekly or monthly cap the punter sets on themselves, and the operator enforces it from the moment it is set. A time-out is a short break, from a day to several weeks, where the account is locked from betting. Self-exclusion is a longer block, typically six months or more, and an exclusion applied in one TAB NZ brand applies across both TAB and Betcha because they are the same account holder and the same regulatory frame. The helpline listed in the apps is 0800 654 655, free from any New Zealand phone, with a text line at 8006, and it is open 24/7. The same number is shown in the Betcha app.

The national frame around the operator tools

TAB NZ has a statutory duty to minimise the risks of problem and underage gambling, and it pays a Problem Gambling Levy of 0.74% of its gross profits into a fund that pays for treatment services, education, and research. The levy is in force from 1 July 2025 to 30 June 2028. The fund supports a network of regional problem-gambling services and the national Gambling Helpline, and it supports Safer Gambling Aotearoa, the public-facing education programme. The Department of Internal Affairs monitors the operator’s compliance with the betting prohibition and with the harm-minimisation duties, and it can audit TAB NZ under the Gambling Act 2003 and the Racing Industry Act 2020.

There is no single national online-betting exclusion register in the way the casino law will eventually set up an online casino register. Self-exclusion at TAB NZ is at operator level, and a punter who has self-excluded at TAB and Betcha has not, by that act, self-excluded at offshore bookmakers — which is one of the practical reasons an offshore account sits outside the New Zealand harm-minimisation framework.

Help in plain language

A punter who is worried about their own betting or someone else’s can call 0800 654 655 at any time, day or night, free from any New Zealand phone. The text line at 8006 reaches the same service. The Gambling Helpline is funded by the Problem Gambling Levy, and it is independent of TAB NZ and of any operator. The regional problem-gambling services across New Zealand are also reachable through the helpline, and they work face-to-face as well as by phone. Self-exclusion at TAB NZ is set inside the app or by contacting the operator’s customer services, and it takes effect immediately. Deposit limits and time-outs are also set inside the app and take effect on the next betting cycle.

The market in this guide: TAB NZ’s two brands and ten offshore bookmakers New Zealand players meet

Ten brands sit in this guide, with the two New Zealand-licensed brands first and the eight offshore brands following. None of the offshore brands is licensed in New Zealand; every offshore brand is described in its own words, rated on the same criteria, and called not licensed here rather than ranked against the licensed pair. The list is a comparison, not a recommendation.

The point of the table is not who is “best”. For a New Zealand punter, the only brands licensed to take their bet are TAB and Betcha, and the comparison that matters is the one between those two — same product, same safer-gambling tools, same helpline, but different positioning and a different in-app feel. The offshore brands sit below the line because they are what the punter will see in marketing material, on social media, and in tipster affiliate links, and they need to be readable on the same axes (what the offer is, what it costs, what licence the operator sits on, what happens if something goes wrong) so the punter can compare.

The two New Zealand-licensed brands, side by side

TAB — the longer-running brand, with the wider product spread

TAB carries the full TAB NZ product. On racing, the app takes Win, Place, Each Way, Quinella, Exacta, Trifecta, First Four, Double, Treble, Daily Double, Running Double, Quaddie and Big6, and the racing pool is fed by both fixed-odds and tote (pool) betting. On sport, the app takes head-to-head, line, handicap, totals, player props, futures, and Same Game Multis on major codes. New customers can receive Bonus Cash that is split across multiple bets rather than tied to one, and the app’s Mega Multi promotion gives up to $50 in Bonus Cash if a multi of four or more legs falls short by a set number of legs — the standard “multi insurance” shape, with a cap on the bonus and the usual terms and conditions attached. The Place Extra option lets a punter back a runner to finish up to tenth in selected races, which is a softer each-way for long-shot punters.

TAB’s safer-gambling tools sit inside the app, and the helpline (0800 654 655) and the text line (8006) are listed in the support section. The brand is the right one for a punter who wants the full TAB NZ product on one screen, including the deeper pool bet types and the racing-side extras. The downside is the in-app feel: the brand carries the longer history, and the layout is denser than Betcha’s. For a punter who already knows the product, that density is a feature. For a first-time punter, it can be a barrier.

Betcha — the newer brand, built around the social side

Betcha is positioned for a different punter. The daily Toolbox bundles odds boosts, multi insurance and other promos in one place, refreshed each day, so the punter does not have to dig through a long promotions page. The Multi Builder lets a punter build a Same Game Multi and copy a trending multi that other punters are backing, and the multi grid lays out legs across the same event with the price updating live. The Bet Social section is a feed of chat, tipsters and shared bets; the Playbook runs match previews and tips. Safer Betting tools sit inside the app, and the same 0800 654 655 helpline is listed.

Betcha is the right brand for a punter who wants the same TAB NZ product with a lighter, more social in-app experience. The product underneath is the same: same TAB NZ account, same licence, same safer-gambling framework, same withdrawal rules. The bet types are not as deep as TAB’s full racing menu on the home screen, and a punter who wants a First4 or a Quaddie may have to navigate further to find them. For a punter whose betting is mostly sports and Same Game Multis, Betcha is the cleaner choice.

The shared cost of an offer at TAB and Betcha

Because TAB and Betcha are the same account and the same operator, the offer mechanics are the same. Bonus Cash is split across bets and cannot be withdrawn as cash; it pays out winnings only. The Mega Multi bonus is capped at $50 and is paid as Bonus Cash, which carries the same turnover and minimum-price rules. The turnover and minimum qualifying price for clearing Bonus Cash into withdrawable cash are set in the operator’s terms; the punter is advised to read the terms screen before placing the qualifying deposit, because the wagering requirement, the minimum price, the deadline and any cap on free-bet winnings are not the same on every promotion. A punter who reads the terms can see whether the offer is worth the deposit. A punter who ignores them is taking the offer on the operator’s word.

The eight offshore brands in this guide

Every brand below is described in its own terms, marked not licensed in New Zealand, and judged on the same axes: what the offer is, what the wagering and minimum-price conditions look like, and what licence the operator sits on. The order below is not a ranking.

BillyBets

BillyBets runs a sportsbook and a casino on the same account. The cashier page offers New Zealand in the country selector, but the only currency filter visible is Euro, so a New Zealand punter depositing in NZD will likely face a conversion on the way in and on the way out, and the spread on that conversion is part of the cost. The sportsbook offers three odds formats — Decimal (2.00), American (+100) and Fractional (1/1) — so the punter can read prices in whatever form is comfortable. Promotions on the sports side include cashback and reload bonuses, and a coin shop where coins earned by depositing, betting, tournaments and challenges can be exchanged for free bets and free spins; the VIP programme has five levels. The casino welcome is separate from the sports welcome. The site names no licence that applies in New Zealand.

The BillyBets trade-off is breadth of promotions against the conversion cost and the offshore-only dispute route. A New Zealand punter who wants the sportsbook and the casino under one account, with regular reloads and a tiered loyalty programme, will find the menu long. The punter pays for the breadth in two places: the spread on the Euro conversion, and the absence of a New Zealand complaint route if a withdrawal stalls or a bonus term is read against the punter.

Telbet

Telbet sits as a crypto casino and sportsbook. The Russian-language welcome offer is 200% up to 1 BTC plus 50 free spins and a 5 USDT free bet; the English version of the offer may differ, and the punter is advised to treat any specific offer as the version shown at signup, not as a fixed number. The sportsbook offers in-play betting and a My Bets page, and the site publishes separate sports betting rules, bonus terms, and responsible-gambling and AML policies. The brand is built around crypto, and the deposit, the bonus, and the bet are settled in crypto.

The Telbet trade-off is speed and anonymity on the crypto side against price volatility and the same offshore complaint gap. A punter whose bank account is in NZD is exposed to the crypto-to-fiat conversion on the deposit and the withdrawal, and the bonus terms in crypto are settled in crypto at the price on the day of settlement. A punter who wants the sportsbook experience in crypto and is comfortable with the conversion is in the target market. A punter who is not comfortable with the conversion pays for it in real money.

RTbet

RTbet sits on a Curaçao licence and runs a sportsbook and a casino on one account. The minimum bet per event is 0.5 in the account currency, and multi-bets and system bets are capped at 30 selections. No welcome offer was published; the punter is advised to check the version current at signup. The Curaçao licence gives no right to take bets from people in New Zealand.

The trade-off is the lower minimum bet and the 30-selection cap against the offshore-only framework. A punter who wants to bet small and build a long multi has the headroom. A punter who needs a New Zealand complaint route does not have one here, and the Curaçao licence is the limit of the operator’s accountability.

Glorion

Glorion runs a sportsbook with pre-match and live betting, virtual sports, horse racing and esports, and the markets are grouped into popular, niche, indoor and outdoor sports plus entertainment events such as award shows and elections. The breadth is the product: a punter who wants a non-sports line (an election, an awards result) can find it here in a way most mainstream sportsbooks do not offer. The site names no licence that applies in New Zealand.

The trade-off is range against the entertainment-event lines, which carry a wider margin and a thinner payout share than the headline sports markets. A punter who wants a football or a basketball line is paying bookmaker margin on a market with the standard shape; a punter who wants to bet on an awards result is paying the much higher margin that novelty markets carry. The offshore-only dispute route is the same as the rest of the offshore set.

Spinbara

Spinbara offers a first-deposit sports bonus of 100% up to EUR 100, a sport crypto welcome bonus of 100% up to 200 USDT, and a separate casino welcome of 100% up to EUR 500 plus 200 free spins. The sports and the casino bonuses are separate, and the punter has to choose which one to take at signup, because the two bonuses sit on different terms. The site names no licence that applies in New Zealand.

The trade-off is two welcome bonuses against a choice. A punter whose betting is mostly sports can take the 100% up to EUR 100 and leave the casino bonus alone; a punter who plays both takes the casino bonus and misses the sports one. The wagering and minimum-price terms sit in the operator’s own bonus terms, and the punter reads them before the deposit, because the same 100% match on a 6x wagering requirement and a 1.50 minimum price is a different offer to the same headline on a 10x wagering requirement and a 1.80 minimum price.

Sportaza

Sportaza sits on an Anjouan licence (ALSI-202606064-FI2) and offers cash out before an event is settled, Bet Builder with the rule that a single void leg voids the whole slip, multiples, Asian lines, and interval markets in 1, 5, 10 or 15-minute ranges. The interval markets are the product differentiator: a punter who wants a bet on the next 5 or 15 minutes of a football match, or the next 10 minutes of a basketball quarter, can find it here. The Bet Builder rule on void legs is worth reading carefully: a punter who builds a Same Game Multi and one leg is voided (a player who does not start, for example) loses the whole slip, not just the voided leg.

The trade-off is the interval-market depth and the Asian lines against the Bet Builder rule and the offshore-only framework. A punter who wants short-window markets and Asian handicap lines has the menu. A punter who builds large Same Game Multis and expects a voided leg to drop out cleanly does not have that protection here.

BetNinja

BetNinja sits on a Union of the Comoros licence and offers a casino welcome of EUR 1,000 bonus and 100 free spins, and a sports offer of a 100% match up to EUR 100 on the first deposit. The two are separate. The site names no other licence that applies in New Zealand.

The trade-off is the matched percentage against the licence. A 100% match up to EUR 100 is a standard shape; the wagering, the minimum qualifying price, the deadline and the cap on free-bet winnings are in the operator’s own terms and are what decide whether the offer is worth the deposit. The Comoros licence is the limit of the operator’s accountability for a New Zealand punter.

Roobet

Roobet sits on a Curaçao licence (OGL/2024/687/0427), with the holder listed as Raw Entertainment B.V. (registration 157205, Korporaalweg 10, Curacao). The brand runs as a crypto casino and sportsbook, and the offer is positioned around crypto deposits and crypto payouts.

Roobet operates as a crypto-native platform, and its lack of a New Zealand licence means the dispute route is limited to the operator’s own terms. A punter whose bank account is in NZD pays a conversion fee on the way in and out, and the offer is settled in crypto at the daily rate. The Curaçao licence provides no local accountability for a New Zealand punter.

What an offer looks like in real numbers

The arithmetic in this section is not a prediction. It is an average across many bets at the stated prices, and a punter who takes any of the offers below is advised to treat the figure as a benchmark, not as a guaranteed outcome. Every figure below uses the standard formulas: payout share = 1 ÷ (sum of 1/odds for every outcome of one market); margin = 1 − payout share; free-bet value = free-bet amount × (odds − 1) ÷ odds × payout share; expected cost of clearing a bonus = required turnover × margin of the market the bonus is spent on.

A $20 free bet at 1.90/1.90

A $20 free bet on a two-way market at decimal odds of 1.90 on each side has a payout share of 0.95 and a margin of 5%. The free-bet value, because the stake is not paid back with a win, is $20 × (1.90 − 1) ÷ 1.90 × 0.95 = $9.00 on average. The same $20 staked as a cash bet at the same odds has a value of $20 (stake returned with a win) and an expected value of $20 × 0.95 = $19.00 across many bets. The free bet is worth roughly 45 cents on the dollar in this example, and the rest is the lost stake plus the bookmaker’s margin.

A $50 Mega Multi bonus at 1.90/1.90

A $50 free bet on the same two-way market has a free-bet value of $50 × (1.90 − 1) ÷ 1.90 × 0.95 = $22.50 on average. The bonus is a real, calculable number; it is not “free money”, and the punter has to clear it (or, in the case of a free bet, spend it on a winning bet) before any of it can be withdrawn.

A 100% match up to $200 with a 6x bonus turnover and a 1.50 minimum price

A 100% match on a $200 deposit is $200 of bonus cash. With a 6x turnover on the bonus alone, the required turnover is $200 × 6 = $1,200. With a 6x turnover on the bonus plus the deposit, the required turnover is $400 × 6 = $2,400. The number of qualifying bets at a $10 stake and a minimum price of 1.50 is 120 bets on the bonus alone, or 240 bets on the bonus plus the deposit. The expected cost of clearing the bonus on a market with a 5% margin is $1,200 × 0.05 = $60 on average, and on a market with an 8% margin it is $1,200 × 0.08 = $96 on average. The $200 bonus costs the punter between $60 and $96 in expected value on the way through, before any deadline or stake-limit while the bonus is active is considered.

The same bonus on a Same Game Multi with a 12% margin

A Same Game Multi at 12% margin (typical of a four-leg SGM on football) costs the punter $1,200 × 0.12 = $144 in expected value on the way through, and the $200 bonus costs the punter more than the headline suggests. The price on the slip does not tell the punter which market they are being paid to bet on; the margin does.

A boosted price from $3.00 to $3.50 on a runner with a 25% chance of winning

A boost from $3.00 to $3.50 on a runner with a 25% chance of winning is worth ($3.50 − $3.00) × 0.25 = $0.125 per $1 staked in expected terms, before the margin of the underlying market. The same $0.50 boost on a runner with a 10% chance of winning is worth $0.05 per $1 staked. The boost is bigger in headline on the long-odds runner, and the average value is bigger too, because the implied probability remains in the calculation. The punter who takes the boost on the favourite is paying for the higher advertised payout with a lower chance of it landing.

What to read in the terms before taking an offer

The list below is not exhaustive. It is the set of conditions that change the value of an offer by enough to matter, and the punter is expected to find each one in the operator’s terms before the deposit, not after.

• The wagering requirement: how many times the bonus (or the bonus plus the deposit) has to be turned over before any of it can be withdrawn.
• The minimum qualifying price: bets below this price (typically 1.50 in decimal odds) do not count towards the turnover.
• The deadline: how long the bonus is valid for, and what happens to unconverted bonus at the end of the window.
• The cap on free-bet winnings: a free bet that pays a maximum of, say, $500 in winnings changes the average value of the free bet, because the upside is limited.
• The stake limit while a bonus is active: a $5 maximum stake in the turnover phase changes the number of bets needed to clear the bonus.
• Which markets count towards the turnover: some operators exclude low-margin markets (Asian handicap, totals) from turnover contributions.
• The voided-leg rule on a Bet Builder or Same Game Multi: a voided leg can void the whole slip, drop just the leg, or void only the affected leg’s odds — three different offers under the same banner.
• The withdrawal rules on winnings from a bonus: whether the winnings are paid as cash, as bonus cash with its own wagering requirement, or capped at a stated maximum.
• The conversion cost on deposit and withdrawal: a non-NZD account currency carries a spread on the way in and on the way out.
• The self-exclusion and deposit-limit coverage: whether the operator’s tools cover both brands (in the TAB NZ case, yes), and whether the tools follow the punter across devices.

A punter who reads these ten points before taking an offer is doing the work the marketing does not do. A punter who reads none of them is taking the offer on the operator’s word, and the operator’s word is built to make the offer look better than the arithmetic says it is.

Frequently asked questions

Which betting site offers a free bet in New Zealand?

TAB and Betcha, the two online brands of TAB NZ, are the only operators that may lawfully offer a free bet to a person in New Zealand since section 74AAA of the Racing Industry Act 2020 took effect on 28 June 2025. The free-bet shape on offer from TAB NZ is “Bonus Cash”, which is split across multiple bets and pays out winnings only — the stake is not returned. The Mega Multi promotion at TAB gives up to $50 in Bonus Cash when a multi of four or more legs falls short by a set number of legs. Offshore brands offer free bets too, but they are not licensed in New Zealand and the New Zealand harm-minimisation framework does not apply to them.

Are there New Zealand rules on the size or terms of a betting bonus?

No specific New Zealand rule on the size of a betting bonus or the wagering terms of one was found. Every figure on a TAB or Betcha offer comes from the operator’s own terms, not from a statutory cap. The Online Casino Gambling Act 2026 imposes a $100 / 200% cap on inducements at licensed online casinos, and that cap is for casinos, not for sports bookmakers. The Advertising Standards Authority’s Gambling Advertising Code applies to betting ads in general, and the Department of Internal Affairs regulates compliance with the broader gambling framework, but no published rule caps a sports-betting bonus in dollar terms or in wagering multiples.

Why is the stake of a free or bonus bet not paid back with the winnings?

A free bet is paid as a token, not as cash, and the contract is that the stake is not returned with a win. The token has a calculable average value, which is the free-bet amount × (odds − 1) ÷ odds × the payout share of the market. On a $20 free bet at 1.90/1.90 (payout share 0.95, margin 5%) the average value is $20 × 0.90 ÷ 1.90 × 0.95 = $9.00. The cash bet at the same odds has a value of $20 (stake returned with a win) and an expected value of $19.00 across many bets. The lost stake and the bookmaker’s margin together account for the gap, and the punter who takes a free bet is taking that gap knowingly.

Which bookmaker may lawfully take sports and racing bets in New Zealand?

TAB NZ, the government-owned operator, is the only provider lawfully taking sports and racing bets from people in New Zealand under section 74AAA of the Racing Industry Act 2020, in force since 28 June 2025. The Department of Internal Affairs told every other operator serving New Zealand to withdraw with immediate effect. TAB NZ runs two online brands, TAB and Betcha, and the two share the same account, the same licence, the same product, and the same safer-gambling framework. There is no New Zealand licence register for bookmakers, because there is only one lawful provider; offshore brands sit on Curaçao, Anjouan, Comoros or other licences, none of which gives a right to take bets from people in New Zealand.

How is the return on a bet worked out from the stake and the odds?

For a single bet, the return is stake × decimal odds, and the net profit (the part above the stake) is stake × (odds − 1). A $10 bet at decimal odds of 2.50 returns $25 if it wins, and the net profit is $15. For a combination bet, the odds of the legs multiply into one price — a two-leg multi with legs at 1.80 and 2.10 has combined odds of 3.78, and a $10 stake returns $37.80 if both legs win. The bookmaker’s margin sits inside every price, and the margin of a market is what decides how much of every $1 bet the bookmaker keeps on average; a 5% margin keeps 5 cents in the dollar, a 10% margin keeps 10 cents in the dollar, and a 1X2 market with three outcomes tends to carry a higher margin than a two-way market at the same headline price.

Which tools for controlling play do TAB and Betcha offer, and who can be called for help?

Both TAB and Betcha list deposit limits, time-outs and self-exclusion inside their apps. A deposit limit is a daily, weekly or monthly cap the punter sets on themselves; a time-out is a short break from betting; a self-exclusion is a longer block, typically six months or more, and an exclusion applied in one brand applies across both. The free 24/7 Gambling Helpline is 0800 654 655, with a text line at 8006, and it is independent of TAB NZ. The same number is shown in the Betcha app. Regional problem-gambling services across New Zealand are reachable through the helpline, and they work face-to-face as well as by phone. Safer Gambling Aotearoa is the public-facing education programme funded by the Problem Gambling Levy of 0.74% of TAB NZ’s gross profits, in force from 1 July 2025 to 30 June 2028.

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